Green Power is the future

Solar power, wind power, geothermal energy, hydro generation, bio-fuel, and tidal power are all examples of Green Power, the future of energy for everyone on Earth. Whether you're interested in renewable energy for your home or business, or want to keep up on the latest trends of sustainability throughout the world, here's a resource you want to visit regularly.

How New Financing Models Could Make Solar the Facebook of the Energy Industry

I don't think I would have used Facebook as the analogy, but I guess the author wanted to catch the eye of more casual readers with her headline.  There is no doubt that my prediction of renewable energy surging this decade is slowly coming true.  The other half of the prediction is that it would pull us out of recession through investment in manufacturing and by bringing down energy costs.  I guess time will tell if that comes to pass.

From Forbes:

Rapidly dropping polysilicon prices over the past year have inspired several utility-scale solar developments to move forward after many months’ pause. At the same time, those in favor of distributed generation (placing solar on every available rooftop to supply energy locally) have also made strides in improving the business case for small-scale solar, particularly with respect to what is being called “community solar”–centrally located solar projects that enable those who can’t necessarily put solar on their own roofs to support and benefit from solar energy.
Now, two emergent financing mechanisms are shaking up the energy business case, creating models that could work for a variety of renewable energy sources. Berkeley-based Solar Mosaic has taken a crowd-funding approach to solar. Much in the way that Kickstarter enables average citizens to fund creative projects, Solar Mosaic enables citizens to support local solar development. The difference is that those citizens earn back their investment once the solar has been installed.
The solar garden approach also enables those without the option of putting solar on their roofs–renters, people who live in historical buildings, people whose homes are in a Homeowners Association, or people whose roofs aren’t positioned to make efficient use of the sun–to reap the rewards of solar energy. The idea is to use marginalized or un-used land to install solar panels, creating community solar gardens. Much the way community-supported agriculture operates, community solar gardens would enable local residents to pay to be members of the garden. Rather than fresh local produce, those members would receive credit from the local utility for generating solar energy.
The first such project in the country is currently underway in Colorado Springs, Colo., where an old landfill is being given a second life as a community solar garden. Three-and-a-half acres of the 40-acre site will soon host 500 kw of solar panels, all owned by local residents who will be seeing an average 10-percent reduction on their energy bills (the panels cost $550, with a minimum purchase of two panels). Recent changes to legislation in Colorado and Massachusetts have made solar gardens possible in those states, and California is currently considering legislation that would do the same.
The California Public Utilities Commission (CPUC) already allows virtual net metering (VNM)–the mechanism through which someone can receive credit on their utility bill for solar power that is not generated on their roof–for the multi-family affordable solar housing (MASH) program. Previously, solar installed on apartment buildings would just be used in common areas, because extending solar to the units themselves would require separate panels and meters for each apartment. Using VNM, the developer and utility can take an entire solar array, feed it into one meter and then send that out to several virtual meters (e.g., 1/56th goes to this bill, that bill, and so on). The currently proposed legislation (SB 843) would extend that capability to community solar projects.
The solar garden idea isn’t just about making everyone feel like they’re a part of the solar energy push, it also makes small-scale solar developments less risky for banks.
One of the real challenges we have when we have conversations with potential solar investors is the collaterization of the underlying asset,” says Lee Barken, Energy and Cleantech practice leader at accounting and consulting firm Haskell & White, LLP and a member of the board of directors of CleanTECH San Diego. “With the traditional solar leasing model, if you approach a typical institutional investor they’ll say what happens when Bob the homeowner defaults on his lease, what’s the salvage value? And they’ll assume zero. I know those solar panels are still worth something, but from an investor perspective they see a lack of a secondary after-market, and the cost of removing the panels from Bob’s roof, and those panels are valued at zero. The elegance of the solar garden approach is that people buy in and pay a share, so if Bob stops paying his subscription, you don’t have to go remove his solar panels, you just sell his share to the next person. That means the collateralization of the loan could be secured by the underlying asset because it’s not on Bob’s rooftop.
Solar Mosaic co-founder Daniel Rosen is similarly enthusiastic about the crowd-funding approach to solar. Rosen is a passionate advocate of solar energy, but beyond that he is a big believer in innovating business models.
Solar lends itself to an innovative financing model, such as Mosaic, that is decentralized, democratized, and agile,” he says. “These are the business models that matter in the 21st century. Look at what Facebook did literally overnight to the media industry. It empowered every person to be their own media clearinghouse. A similar trend will happen with “clean-web” or where energy meets IT/ web/ mobile innovations. And we think it will be an even bigger opportunity than Facebook, because energy and finance are the largest markets in the world. The Age of the Internet has transformed nearly every other industry on the planet, but we are still trapped and constricted by 19th century energy sources and business models.

Mapping Solar Grid Parity

Here's an interesting animation that shows how soon solar will be as affordable as other forms of electricity:
energyselfreliantstates.org

U.S. Solar Energy in 2011

As early as 2008, I predicted that Green Power, including solar energy, would be the industry that brings the U.S. out of recession.  Not only was this an area that was showing growth, but it was one on which our future depended.  Whether through technical innovation or government subsidy, the attractiveness of renewable energy sources compared to fossil fuels is going to keep growing over the remainder of this decade.

From Clean Technica:

Rhone Resch, president and CEO of the Solar Energy Industries Association, today published the following review of the U.S. solar energy market in 2011:
“In contrast to some of the recent headlines, the solar energy industry is a strong, thriving industry in the United States that is creating jobs and lowering costs for the consumer. In 2011, a number of myths about the solar energy industry circulated nationally. Let’s set the record straight. Here are seven truths about this thriving American industry:
1.      Solyndra did not kill the industry. In fact, the solar energy industry is expanding rapidly and has become a highly competitive, thriving industry in the United States. Solyndra’s high-profile bankruptcy in August was an anomaly in what proved to be the industry’s most successful quarter on record. Although Solyndra couldn’t compete, the rest of the industry grew by 140 percent in the last year and costs came down by 40 percent. America discovered that one company’s failure does not reflect an entire industry. In fact, 9 out of 10 Americans feel it’s important to develop and use more solar in the U.S., according to an independent national poll conducted a month after Solyndra declared bankruptcy.
2.      Today, U.S. solar is an economic force: employing more than 100,000 Americans at 5,000 businesses across all 50 statesThe solar industry proved itself to be a strong job creator in the United States. The vast majority of the 5,000 companies that make up the industry in the U.S. are small businesses, engines of growth for our economic recovery. These are real people in real solar jobs as reported by The Solar Foundation’s National Solar Jobs Census 2011. The solar value chain includes engineers, sales people, and other administrative professionals as well installers, roofers, electricians, plumbers and contractors – skilled labor professions hit hard by rampant unemployment in recent years – now finding new opportunities to put their expertise to work in the solar industry.
3.      The solar industry is one of the fastest growing sectors in our economy.The solar industry set a record for installations and achieved 140 percent annual growth in thethird quarter of 2011. In fact, more U.S. solar electric capacity came online in Q3 2011 than in all of 2009 combined; Q4 2011 is forecast to be even larger as solar becomes a cost competitive choice for more homeowners and businesses across America.
4.      Consumer, business and industry support for solar continues to grow. Solar’s growth is leading to rapid innovation across the spectrum – from factory improvements to new financing and sales mechanisms – that allow more and more Americans to turn to solar energy. Target, Walgreens, Whole Foods, Johnson & Johnson, Safeway and others are powering their businesses with solar. In addition to GE’s investment in new manufacturing in the U.S., 2011 also welcomed new household-name corporations to the solar industry, with Warren Buffett’s MidAmerica Energy, Total Energy and Google all making sizeable investments in solar in 2011.
5.      Solar is now affordable for more Americans. Today, there are 1.5 million households using solar water heating and enough solar electricity to power 730,000 homes. And solar is becoming more affordable every day with technology innovation, scaled up manufacturing, faster installation techniques, and new financing options. The price of solar panels dropped 40 percent since the beginning of 2010 and the average installed system price dropped 14.4 percent from Q2 to ch allows the market to choose winners and losers, was the single most effective policy for deploying a dozen energy technologies in the last year. The program has spurred completion of more than 22,000 energy projects across all 50 states and attracted $23 billion in private investment. The industry will push to renew this successful program when Congress returns in January 2012.
Solar works for America and 2011 was a record year for the U.S. solar industry. Although the past year presented challenges to the solar industry, with American ingenuity, hard work, and smart and consistent energy policies our industry is on track for another record year in 2012.”

Rhone Resch, President and CEO
Solar Energy Industries Association

Solar paint to brighten up homes

Advances in technology, from the "3D" solar panels that have multiple transparent layers, each designed to capture energy from part of the light spectrum, to improved efficiency and lower costs, will gradually make solar power a true low-cost alternative to fossil fuels.  We're lucky in that the recession has brought down energy costs for a few years, giving us a reprieve from the urgency to find alternative energy.  If enough advances can be made this decade, by the time energy prices begin to soar again, we'll have many more solar installations and homeowners will have many more options for powering their homes.

From TechEye.net:


Next time an apprentice builder gets sent to buy some left-handed screwdrivers, stripy paint or a long weight from a hardware store they may one day have another unusual item on their list.
This is because a group of researchers are attempting to do away with bulky photovoltaic solar panels by developing solar cells that can be painted directly onto the outside of a house.
The team at the University of Notre Dame has, it says, succeeded in making prototype versions of ‘solar paint’ in an attempt to move beyond conventional silicon based solar methods.
This involves using quantum dot nanoparticles, consisting of titanium dioxide and cadmium sulfide or selenide, mixed with a water and alcohol concoction.  While it might not sound very appetising as far as Christmas cocktails go, the resultant semiconducting paste can be cheaply and effectively slapped on the front of a house.
The researchers believe that the paint can be produced inexpensively and in large quantities, but it does seem that they are a while away from making it a commercially viable product.  Conversion efficiency rates are at a measly one percent, a long way off the efficiency rates over 10 percent that are seen in conventional panels.
Of course, small efficiency cells can still have applications, with developments in cheaper thin film solar cells potentially offering larger areas of coverage to gain sunlight in countries with less space restrictions, for example. The team is now working to push the efficiency levels of the compound higher.
Perhaps the team should spend a little more time on the name of the ingenious new paint, which has so far been left with the truly atrocious ‘Sun-Believable’.

Google Puts $94 Million More in Solar Energy

Nearly $1 billion invested so far.  Much of that is because Google likes to do "the right thing."  But much is because Google is a profitable, forward-thinking company that can see the future.  The future is renewable energy.

From eWeek:

Google (NASDAQ:GOOG) Dec. 20 invested $94 million more on solar energy, bringing its clean energy investments to a grand total of more than $915 million through 2011.
The search engine giant, which consumes a lot of power by using dozens of data centers and hundreds of thousands of server computers to fuel Web searches and applications, invested in four solar photovoltaic (PV) projects being built by solar developer Recurrent Energy near Sacramento, Calif.
Google's $94 million will be allocated by global investment firm KKR, which has created a new venture called SunTap Energy to pump money into U.S. solar projects. KKR is funding the difference.
Google said energy produced by these projects is already contracted for 20 years with the Sacramento Municipal Utility District, which created a tariff program to help "green the grid" for Sacramento-area residents.
The move means Google has committed to funding solar powered-panels for more than 10,000 homeowners this year.
Google invested $75 million to provide solar panels on residential roofs for up to 3,000 homeowners in September. That funding  followed a $280 million investment to outfit homes and offices with solar panels that harness heat from the sun to power buildings.
However, while those funds went toward financing solar panels for home and business rooftops, this new round constitutes Google's first U.S. investment in solar PV power plants that generate energy for the grid.
These projects have a total capacity of 88 megawatts, or roughly the amount of electricity consumed by more than 13,000 homes.
Google's clean energy spend has certainly accelerated in 2011, with $880 million-plus of the company's total investments coming since January of this year alone.
"We believe the world needs a wide range of solutions—from wind, to transmission, to solar PV and concentrated solar—and we look forward to new opportunities next year to further expand our portfolio of clean energy investments," said Axel Martinez, the assistant treasurer for Google Treasury, in a blog post.
GigaOm has a short and sweet summary of Google's total clean energy spend.

U.S. Solar Industry Reports Record Power Installed

This is the type of news I would like to see every year for the next ten years.  Growing the number of solar installations will do more to make us energy independent than drilling for oil in everyone's back yard.

From Talking Points Memo:


What Solyndra? Despite the unfortunate high-profile bankruptcy of the Freemont, California solar company and several other major U.S. solar firms, the third quarter was the best yet in the history of the American solar industry, at least so far as total power generation was concerned.
Over 449 kilowatts-worth of photovoltaic solar energy facilities, enough to power 600,000 homes, were installed across in the country between July and September, according to a report published Wednesday by market research company GTM Research and the Solar Energy Industries Association (SEIA).
That’s a 140 percent increase from the same quarter last year and a 39 percent increase over the second quarter of 2011. It’s also more solar power than was installed during the entirety of 2009.
“The U.S. solar industry is on a roll, with unprecedented growth in 2011,” said Rhone Resch, President and CEO of SEIA, in a press release. “Solar is now an economic force in dozens of states, creating jobs across America.”
The growth was driven by a sudden turn-around in the residential market, up 21 percent after two quarters of consecutive declines, and an even greater surge in the utility-scale solar market (that is, solar installations put up for, and by, utilities companies), up a whopping 47 percent.
23 utility installations alone accounted for 200 megawatts of photovoltaic solar during the period, a 400 percent increase form the second quarter and more than all types of solar installations in any single quarter up until the third quarter of 2010. The largest of these utility solar projects are located in Arizona, New Mexico and California.
But the underlying catalyst for more utilities turning to the sun for power was government funding. As the report’s authors come right out and admit: “Much of this growth is due to the Department of Treasury’s 1603 program, which is due to expire on Dec. 31 unless Congress extends it.”
The 1603 program was created under the 2009 American Recovery and Reinvestment Act, aka the federal Stimulus Package, to provide grants to reimburse qualifying businesses for installing solar projects on their properties, paying up to 30 percent of the cost of the installations.
So far, the program has leveraged about $23 billion in private sector investment for this purpose, according to 34 Senate democrats, who on Thursday sent a letter to Senate leaders calling for an extension of the program. A day earlier, 88 Democrats in the House signed a similar letter.
Solar companies and their trade organization, the Solar Energy Industries Association (SEIA) are unsurprisingly most keen on extending the program. The SEIA rounded up 750 companies in, or tangentially involved in, the solar industry, to send a letter to Congress to this effect, saying even a one-year extension would result in an “additional 37,394 jobs,” and 2 gigawatts of solar energy by 2016.
But given the “shadow” of the Solyndra bankruptcy looming over Congress, the chances for the program’s extension don’t look good, according to National Journal.
Meanwhile, the state of the commercial solar industry in the third quarter was also far from bright, with non-utility installations falling by 14 percent and non-residential installations declining even further, by 24 percent.
The decline is due to “the four largest non-residential state markets all shrinking simultaneously,” according to the report. As the authors explain:
The commercial markets in California, New Jersey, and Pennsylvania shrank in Q3, and our expectation is that the trend will continue at least through Q4 (and likely longer in New Jersey and Pennsylvania). Given that those states comprised well over 50% of installations in the first half of the year, overall market growth will necessitate substantial demand pick-up across a number of secondary states. In particular, we are closely watching trends in Massachusetts, Colorado, Ohio, Tennessee, and Hawaii - all of which could be near-term growth markets.
Furthermore, the growing solar trade conflict between the U.S. and China isn’t helping matters any, at least not yet. Everyone in the sector is waiting to see if the U.S. government, through the Department of Commerce, will levy tariffs on imports of cheap Chinese solar panels, as has been requested by a consortium of six solar companies with operations in the U.S., who allege that their Chinese competitors have violated international trade law by artificially lowering the prices of their panels and are “dumping” them into the U.S. with the financial support of the Chinese government. (It should be noted that China, for it’s part, accuses the U.S. of doing basically the same thing except concerning another product — polysilicon solar feedstock, that raw material needed to make the panels.)
As the report notes: “The impact of these tariffs would depend on their magnitude; small tariffs might have a negligible market impact, while large tariffs would drastically alter the makeup of the supply picture.”
The authors do predict that if substantial tariffs were imposed on Chinese solar panel imports to the U.S., it would make U.S. “suppliers more price-competitive, at least in the near-term” and could even “result in a material increase in domestic market share for U.S.-manufactured modules in 2012 and beyond.”
However, Chinese companies could attempt to mitigate the tariffs by shifting production to countries where production costs are lower, including South Korea and Taiwan.
Little wonder the report has a gloomy forecast for the future. Although another 500 megatwatts of utility photovoltaic solar power is currently under construction and expected to come online in late 2011 or early 2012, “Today, the U.S. market faces more uncertainty than at any time in recent history,” the authors write.

Wind turbines to power Indiana college building

Whatever the motivation, I'm always encouraged by businesses, municipalities, and other institutions investing in green power technology.

From The Chicago Tribune:

Mark Biermann, dean of Taylor's School of Natural and Applied Sciences, said the two 50-kilowatt turbines, which are more than 100 feet tall, are expected to be operational by the end of August.

"The moment the wind turbines are up and connected to the new building we'll use the power generated to power the new construction," Biermann said.

The 137,000 square-foot science complex, scheduled to open for the fall 2012 semester, will also use 42 10-kilowatt solar cells. Biermann said the design of the four-floor building includes a "green roof" with vegetation and walking paths for instruction.

The evangelical Christian liberal arts school has about 2,000 students at its campus in Upland, which is between Fort Wayne and Indianapolis.

Biermann said planners put an emphasis on using sustainable energy sources in designing the building.

Real Goods Solar offers homeowners chance to win $25,000 solar system

I seldom enter sweepstakes because of the poor odds of winning.  Here's one, however, that I'm going to enter today.  Based on the data in the article, and my last electric bill, I would be selling electricity to the utility for about five months a year.

From Brighter Energy:


Homeowners in California, Colorado, New England or New Jersey stand the chance of winning a $25,000 solar power system in a new sweepstakes competition from solar firm Real Goods Solar.
The firm based in Boulder, Colorado, launched the contest yesterday, offering up a 4kW home solar electric system for the winners.
Qualifying homeowners in California, Colorado, Connecticut, New Jersey, Massachusetts, Rhode Island and Vermont can enter to win at www.RealGoodsSolar.com/Sweepstakes or by calling 1-888-56-SOLAR.
The company said no purchase was necessary to take part, with the deadline set at 6:00 pm PDT on September 30, 2011.
With the recent announcement of Real Goods Solar’s merger with northeast renewable energy leader Alteris Renewables, for the first time homeowners from many northeastern states are now eligible to participate in the Sweepstakes.
2010 sweepstakes winners Juan and Virginia Vasquez of Rialto, CA installed a 4.1kW solar electric system expected to generate 5804 kilowatt hours of electricity annually, and offset approximately 75% of the family’s electricity bill.
Based on average electricity usage, homeowners are likely to spend $100,000 on electricity bills over a 25 year period. The Sweepstakes brings attention to rising utility costs and renewable energy solutions to mitigate these increases. One lucky homeowner will have the ability to save thousands of dollars on electricity over the lifetime of their system.
John Schaeffer, Real Goods’ President of Residential and Founder, commented: “During these hot summer days, our customers often complain about high electric bills due to summer air conditioning loads. What better way to lower utility bills than with solar? Our customers frequently see a return on investment of over 20% for a purchased solar system, or a low money down and lower monthly bills on a power plan purchase. We’re happy to offer this sweepstakes to highlight the importance of converting to a solar economy!”
Real Goods Solar has now installed over 11,000 solar electric systems for both residential and commercial properties.
The company offers turnkey solar energy solutions, and has 33 years of experience in solar energy, beginning with its sale of the first solar photovoltaic panels in the United States in 1978. With 15 offices in California, Colorado and the Northeast Real Goods Solar is one of the largest residential solar installers in the United States.

An Added Bonus of Solar Panels: They Keep Buildings Cool

I hate visiting big box stores or malls in the summer.  Those enormous parking lots always feel like they're twenty degrees warmer than my neighborhood street.   I'm sure this isn't completely a misperception.  The heat islands formed by major cities are caused by too much pavement, and are known to disrupt the weather.  I especially like the idea of putting solar panels up in parking areas.  Not only do they shade the cars, but they provide power to the adjacent buildings.  Now a new study suggests that solar panels keep your home cooler in summer and warmer in the winter.

From: Good:

When New York rolled out a solar map of the city, I wrote that, as a renter, I didn’t have a strong financial incentive to urge my landlord to go solar: I’d only save about $31 each year. But a new study from the University of California at San Diego suggests there’s another incentive for installing solar panels on a building, particularly for someone who lives on the top floor like I do. The UC-San Diego research found that in addition to absorbing sunlight and converting it to energy, solar panels help cool roofs and buildings.
Standard black roofs soak up heat, which is transmitted into the ceilings and rooms below. This is one of the reasons why attics are so hot in the summer. It’s also one of the reasons why my apartment, on the fifth and top floor of my building, is hotter than one on the first floor.
Solar panels, of course, intercept sun rays that would otherwise heat the building, converting them into energy. When wind blows into the gap between the solar panels and the roof, it also clears away heat. Students at UC-San Diego determined that the net result of these cooling effects was that portions of a ceiling beneath solar panels were 5 degrees Fahrenheit cooler than portions beneath the open roof. Solar panels tilted at an angle had an even greater cooling effect than solar panels laid flat against the roof, because the gap between the panel and the roof allowed more air to circulate, whisking away that much more heat. More efficient solar panels, which convert more sunlight into energy, also do a better job at cooling.
Since solar panels keep heat from seeping into a building, they also help save on cooling costs over time. The UC-San Diego team calculated that over the lifetime of a set of solar panels, these savings added up to the equivalent of a 5 percent discount on the panels’ cost.
For anyone who already has solar panels installed, this finding is just an added bonus. But as Jan Kleissl, the researcher who oversaw the study, notes, if your goal is to cool a building passively, solar panels aren’t the most efficient option. White roofs, which can reflect 80 percent or more of the light that hits them, are just one way to cool a building more efficiently.
Although
white roofs can lessen the heat inside your building on a sunny, 90-degree day, they won’t also power the fans or air conditioners that you eventually turn on to keep from melting. As a rule, though, solar panels don’t cover a roof entirely: why not opt for both? At this point in July, I’m thankful for any technology that might drop the heat a degree or two.

Advice on adding solar features to your home

Many homeowners want to add solar power to their homes, but just don't know where to begin.  For some, the entire process is very intimidating.  It doesn't have to be.  Much of going green involves changes in your everyday lifestyles to reduce energy consumption.  When you use less energy, adding solar power to help power the remaining demand has more impact.

From AZ Central:


It seems like a no-brainer at a time when tax credits and rebates are as plentiful as the Arizona sunshine that every homeowner would consider a solar water heater when it's time to replace a broken or outdated tank.
A solar water heater can, after all, cut your water-heating bills by up to 80 percent because it draws its energy from the sun, and that's free.
Still, more sophisticated solar equipment for the home - like rooftop photovoltaic panels - are not free. And they might not be for everyone.
In fact, rooftop panels that can defray the cost of cooling and lighting your home aren't even the next logical step after you install a solar water heater. What you should do first is decidedly low-tech: Make your house, appliances and systems as energy-efficient as possible. Once you do that, solar panels will be more effective - and more affordable.
That's because the less energy you use, the less help you'll need from your panels. And that means you can buy smaller panels.
So: First, invest in a solar water heater. Then, get a home-energy audit to determine whether you need more attic insulation, Energy Star appliances, double-pane windows, an upgraded AC system, and caulk and weather stripping to plug holes and cracks that can let hot air in and air-conditioned air out.
Then, consider adding solar panels to your roof to slash your electric bill and do your part for the environment.
Still, they're not right for everyone. Here are a few things to consider before investing in solar panels:
- Do you own your home? Renters can save energy and reduce their electric bills with solar equipment, but unless the landlord is willing to pay for it, you're unlikely to get your money out of it.
- Does your roof face south? Photovoltaic panels are most effective facing south. You can install them on east-west-facing roofs, but they're more obvious, produce less electricity, cost more to install and might not qualify for the same utility rebates as south-facing panels.
- How old is your home? If it was built before the 1920s, the roof might not be strong enough to support the weight of the panels. You can reinforce your roof, but it will bump the price of the installation up considerably. The good news: The 30 percent federal tax credit covers the cost of upgrading the roof.
- Can you afford it? You can get a $6,000 solar water heater for as little as $1,800 after tax credits and utility rebates, but solar panels cost more. A solution for those who can't make the up-front investment but want to benefit from lower electric bills: Some companies rent solar panels, starting at $80 a month. The leasing company takes the tax credit and utility rebate, but the homeowner enjoys the reduced energy costs.
- Is your income high enough for you to claim federal and state tax credits? If not, leasing might be an option for you.
Final step: Buy a good system and hire a bonded, insured installer with a plumber's or electrician's license from the Arizona Registrar of Contractors and with many years of experience installing solar panels.
Since 2008, when our electric utilities started offering rebates to homeowners for installing solar panels, about 200 new solar installers have started businesses in the state. During that time, the rebates have dropped from $3 a watt to $1 a watt, and eventually, they'll run out. When that happens, many of those newcomers will run out on you.
Your best bet: Consider more than the bottom line when hiring a solar installer. Do business with an established local company that has installed hundreds of systems already. Work with an installer who knows how to size a unit and who asks you lots of questions about your family, lifestyle and energy use before recommending a product. Go with a vendor who will do the rebate paperwork for you (you can even ask most companies to accept the rebate on your behalf as your final payment for the job). Patronize a contractor who will allow you to make payments as the job progresses instead of insisting on payment in full up front.
And never, ever buy solar equipment until you understand why you're going with a particular model or size and you feel comfortable with the company you're hiring. Reputable installers do not pressure you with "today-only" prices.
Going solar makes so much sense for most of us Arizona homeowners. It allows us to shrink our "footprint" on the planet; to save money; to add resale value to our homes; and to take pride in our responsible use of energy.
Just make sure it's the responsible choice for you, your family and your house before you tap the sun.

A “Solar Groupon” for Small and Mid-sized Businesses

With more widespread acceptance, increased production will produce economies of scale that result in lower prices.  Until that happens, however, government subsidies and tax incentives are needed to get many individuals and businesses to make the investment in green power.

From Forbes:


When it comes to solar power, small- and mid-sized business have faced a Goldilocks dilemma. Existing solar financing solutions for homeowners and corporations have been too small and too big, respectively. But now there’s something that fits them just right.
Solar@Work, a new program announced today San Francisco’s Department of the Environment at the Intersolar North America conference held in the city, will offer solar systems to Bay Area business via a group purchase or aggregation model. “We think of it like a Groupon for solar,” said Melanie Nutter, department director.
This overcomes historic barriers for small and mid-sized businesses that aren’t issues for big businesses, said Jenna Goodward, an associate with the World Resources Institute, an adviser to the program. “They’re smaller, so it’s that’s much more important to aggregate demand and negotiate as a buying group,” she said. “And a lot of them don’t have the cash flow to do an up-front purchase.” Nor do they have access to prime credit, she said.
Jason Coughlin, project leader at the National Renewable Energy Laboratory (NREL), another adviser, explained further. “You’ll talk to bankers, and they’ll say, ‘The work we have to do for a 200 kilowatt installation is similar to the work we have to do on a 2 megawatt system.’ So if we can do twenty 100 kilowatt systems using standardized documents, and use one solar installer and one financial partner, in effect we create a 2 megawatt installation project, which is interesting to the financial partner, to the installer, and to the independent small businesses who are getting the benefits as if they were doing one large system.
Solar@Work aims to install 2 megawatts by the end of the year, which is a modest target of about 20 buildings. However, this is just a pilot project that organizers hope will be expanded in the Bay Area and replicated elsewhere in the United States and throughout the world.
Nutter said she expects the program to be popular in San Francisco because they designed it in response to feedback from small business. “We anticipate there will be huge interest,” she said.
Optony, a global research and consulting services firm focused on solar development, is also an adviser. SolarCity, a distributed generation firm that recently gained star power with a $280 million investment from Google, was selected as the vendor. The company, based in the Bay Area, has more than 15,000 projects completed or underway and expects to hire more than 400 new workers in the second half of 2011, including 100 in the Bay Area.
Solar@Work offers several financing options for businesses and commercial property owners to install solar power: cash purchase, solar lease, capital loan, power purchase agreements, property-assessed financing, and others, said Nutter. The program will help match the buyers with appropriate financing.
“We anticipate that buildings that participate in the program will have energy bills at the current rate or lower,” said Nutter. “The program has performance guarantee to deliver savings.”
The more businesses that sign up, the lower the prices will be for the entire buying group. The largest reductions will be available if the group purchases more than 3 megawatts by the end of 2011.
Aside from the discounted group price and performance guarantee, program participants will get a special pre-negotiated lease for 10 years with a buyout and free technical assistance from the city to evaluate their solar options.
“Sometimes it can be intimidating for folks who haven’t purchased solar to review bids, to know what’s a good price, what’s a proper inverter warranty, and how to choose among these ancillary services that come with a solar installation,” said NREL’s Coughlin. “Providing unbiased technological assistance is really valuable.”
San Francisco’s Department of Environment also offers free energy audits to small businesses, so all participants will get that service as well to help them reduce energy costs and gain access to energy efficiency rebates, said Nutter.
Part of what makes the performance guarantee equation work at this point is American Recovery and Reinvestment Act funding from the U.S. Department of Energy’s Solar America Cities program and support from U.S. DOE’s SunShot Initiative,
“The Treasury grant, which offers cash payments for 30 percent of the cost of a solar installation (in lieu of a tax credit) is currently expected to expire at the end 2011,” said Nutter. But “we are confident that by leveraging the Federal Renewable Energy Investment Tax Credit that offers 30 percent in tax credits through 2016, we will be able to provide the needed financial incentive for small and medium-sized commercial buildings to participate in the program in 2012 and beyond.”
Nutter said the federal subsidies and Solar@Work are stepping stones to driving down costs for solar. “We envision a future in which subsidies will no longer be needed as an incentive,” she said. “Until then, we will be utilizing the rebates and credits that are available in our current and future group purchasing programs.”
While San Francisco is leading the way, this type of program is easily scalable and replicable elsewhere, said the partners. “One of the reasons why we’re so excited about participating in this program is that there is replicability,” said Alex Perera, codirector of business engagement for World Resources Institute. We see this is something that could be rolled out to other cities and even other countries. WRI is working in China and other big markets.”

Global green energy spending increases 32% in 2010

Just as personal computers led the economic boom of the 80's, and the internet and software led the boom of the 90's, I hope to see green power lead this decade (and pull us out of recession).  It only makes sense, as both peak oil and global warming dictate that we must migrate from fossil fuels to renewable energy.  If only we can overcome the political obstacles...

From USA Today:

Drops in solar cell prices and surging interest in developing nations led to a 32% increase in investments in renewable energy globally in 2010, a United Nations report finds.

Overall, the $211 billion in 2010 investments in renewable energy — wind, solar, geothermal and related technologies — was driven by policies in nations that increasingly require such power worldwide. The United Nations Environment Programme report finds that Chinese wind farms and German solar rooftops led investments but, surprisingly, developing nations spent more on renewable energy utility projects, $72 billion, than developed ones, at $70 billion.
"Quite a jump, considering the economic headwinds, a surprisingly positive result," says UNEP's Virginia Sonntag-O'Brien. The "Global Trends in Renewable Energy Investment 2011" report, the fifth in an annual series, analyzed 26,300 renewable power projects recorded for the year by the London-based Bloomberg New Energy Finance firm.
Among the findings:
•China led all nations with about $49.8 billion in investments, ahead of German spending of $41 billion and U.S. spending of $29.6 billion.
•Big gains came in small-scale projects such as rooftop solar panels, up 91% to $60 billion, tied to stimulus spending by nations in 2010, and government research, up 121% to $5.3 billion.
•Not counting hydroelectric dams, renewable energy supplied 5% of global electricity, 30% of new electrical capacity overall.
Total investment in more traditional coal, gas and oil power plants was $219 billion last year, according to U.S. Energy Information Administration figures, still ahead of renewables, "But the gap is closing rapidly," said report co-author Udo Steffens, head of Germany's Frankfurt School of Finance & Management. "In the next year or two, we will see it close to catching up" to fossil fuels, he says.
"This is a pretty big turnabout and could foretell a significant long-term shift," says environmental economist Melissa Schilling of the New York University Stern School of Business, who was not part of the report. The report describes a 60% drop in solar panel prices (tied to price-cutting by Chinese manufacturers) since 2008 as a leading factor in the increased investment. Wind is still cheaper, but solar may have a stronger tailwind, suggests the report.
"Clean energy is starting to make a difference," says energy policy analyst Peter Lund of Finland's Aalto University, by e-mail. "However, it is very important to stress that new energy technologies' markets still rely much on government support and stimulus."
Domestically, regulations in 30 states that require renewables generate some portion of their power are a leading factor in investment, says Sonntag-O'Brien. "Even cities. This is really driving the market for renewable energy in the USA."

Petra Solar turns cities into sun-power farms

Making clever use of parking lots, utility poles, and other spaces is one creative way to maximize renewable energy generation and minimize costs.

From Marketwatch:

Jersey City, N.J., may be an unlikely place to find a utility-scale solar farm, but Petra Solar has found a way to generate electricity from the sun even on hard-paved urban streets.
Bolted onto street-light and utility poles across Jersey City and other urban and suburban areas of the state, a five-foot by two-and-a-half-foot solar panel is attached about 15 feet above the ground, tilted south toward the sun.

Petra Solar
Petra Solar uses utility poles for hanging solar panels enhanced with smart grid technology.
Each new solar panel from the privately held South Plainfield, N.J., clean-energy technology firm generates about 225 watts of power, adding to generation capacity and helping utilities meet renewable-power requirements.
“It allows you to deploy quickly and cost effectively because you don’t have to invest in land, you’re not building substations or transformers,” said Petra Solar Chief Executive Shihab Kuran.
Under a contract with Public Service Enterprise Group Inc.  — New Jersey’s biggest utility — Petra Solar is now about halfway through its $200 million commitment to provide 40 megawatts of solar power in six cities and 300 rural and suburban communities in the utility’s service area. So far, it’s put up about 95,000 of the panels with a total generation capacity of 20 megawatts, enough power for 3,250 homes.
Petra Solar sells the panels to utilities, which are responsible for maintaining them during an expected life span of 25 years.
Petra Solar says it takes just 30 minutes to install one of its panels, which feeds its electricity directly into the utility’s power lines. Included in the gear are devices that hook up to an AT&T  communications network to allow utilities to remotely monitor their electricity lines.
The network gear helps old-school copper power wires behave more like an Internet-based information-technology system.
“The panels help create distributed energy, which takes stress away from central generation stations,” Kuran said. “When you generate power closer to the load, it’s more effective. Also, the smart-grid technology lets utilities have their eyes and ears open to what they’re delivering to their customers and that allows them to deliver the right amounts of power.” 
Kuran said he came up with the idea to use utility poles when he asked a prospective employee during a job interview to brainstorm about ways to apply solar technology.
“I was challenging the candidate to think outside the box in order to tackle the challenges we faced in New Jersey, where land is expensive...and the labor rate is high,” Kuran recalled in a phone interview with MarketWatch. “I looked outside my window and saw a pole. I said, ‘How about if we put (the solar panel) on the pole?’ ”

Panels draw complaints, praise

While the panel program continues to fan out across Public Service Electric and Gas Co.’s service area, the utility has drawn aesthetic complaints from some residents and municipal officials.
Robert Cotter, a director in the Division of City Planning for Jersey City, said municipal officials held a meeting with PSE&G to complain about Petra Solar panels upsetting the integrity of some historic blocks. Cotter said the city has no plans to mount any legal challenge because they would almost certainly lose.
“They agreed to remove five or six of them, but we’re stuck with them,” Cotter said. “Some folks do think they’re beautiful because they help create more sustainable power. I just don’t notice them any more.”

Plan to kick start widespread solar energy use makes sense

Tax breaks, subsidies, and leasing programs are great ways to renewable energy investment, but there's an even better way - one that not only doesn't cost the government money, but would make money!  Because energy prices are volatile, anyone comparing the savings from an investment in renewable energy (e.g. solar panels) needs to have an idea of what fossil fuel prices would be.  Knowing that prices will remain high makes the renewable energy investment a great idea.  Therefore, the government should establish a floor below which prices won't fall.  There could be a variable tax that changes based on the market price of a commodity such as oil or coal.  If, due to increased supply, decreased demand, or other factors, oil prices fall below a certain predetermined level, the federal government would increase the tax, so that the price remains at or above the level determined to encourage investment in alternative energy.  This makes those energy sources competitive with fossil fuels while raising money for the government to use (either for upgrading the electric grid, investing in renewables, or just paying down the debt).

From The Jackson Sun:

Americans gradually are coming to grips with the reality that high energy costs are here to stay. There are myriad problems associated with fossil fuels that range from limited resources to increasing worldwide demand, negative environmental impact and rising costs. One alternative that is gaining attention is solar power. But up-front costs of installing solar powered systems has kept many people and small businesses from moving in that direction. The Renewable Energy Through Leasing Act could change that.
The bipartisan legislation is sponsored by U.S. Sens. Lamar Alexander (R-Tenn.), Sheldon Whitehouse (D-R.I.) and Mark Udall (D-Colo.). It would make leasing solar installations practical for homeowners and small business owners.
Installing solar equipment on a home or small business can run into tens of thousands of dollars, even on new construction where the cost can be amortized over the life of a home mortgage. But retrofitting a home or small business means high equipment and installation costs must be paid up front. That prices most people out of the solar energy market. The REAL Act, if passed by Congress, could jump start the installation of solar powered systems across the country.
Leasing equipment is a standard business practice and used by individuals for expensive items such as vehicles. For a lease to work, the leased equipment must have buyback or residual value that is used to calculate lease payments. Because solar powered systems are a relatively new product, there is no way to accurately determine the value of the equipment. The REAL Act would establish a system of insurance to guarantee the equipment value. The insurance would be paid for through premiums paid by solar manufacturers and vendors.
Home solar installations can produce electricity and be used for heating and to produce hot water for home use. Excess electricity not used by the homeowner is sold to local utility companies and redistributed. This helps bring down the long-term cost of solar installations.
Opening the door to widespread homeowner and small business use of solar energy could be a boon to the solar energy industry. It would help bring down costs, reduce greenhouse gasses and help reduce the nation's dependency on foreign oil. Solar technology is evolving rapidly, and solar panel efficiency has greatly improved in recent years.
Because the REAL Act requires insurance premiums to be paid to guarantee the solar equipment value, the Congressional Budget Office reports there would be no cost to taxpayers to create such a system.
The REAL Act is a creative way to spur development and growth of the solar energy industry while helping consumers, reducing American oil dependency and improving the environment.

Survey: Business Leaders Are Surprised That Sustainability Actually Pays Off

Overcoming the perception that sustainable practices cost money is a major hurdle to widespread implementation of them.  

From Good:


It pays to conserve. That's the finding of a survey of 247 executives in the U.S., U.K. and China released by the consulting firm Accenture. Seventy-two percent of them said the benefits of their company's sustainability initiatives exceeded their expectations.
We don't know how low those expectations were. Swapping out your incandescent bulbs at the warehouse is one thing, reducing your waste stream is another—which, by the way, can cut your landfill costs by a quarter million a year, to $10,000, if you do it right.
accenture sustainability studyStill, this sampling of average businesses is instructive on the thinking taking place in C-suites. "It's clear that sustainability is no longer merely a matter of compliance," said Bruno Berthon, managing director of Accenture Sustainability Services. Most corporate leaders know sustainability can pay off, but about a third still think it's not important according to the survey. In fact, the same percentage of the executives think business is doing too much, 28 percent, as doing too little to make practices sustainable, 26 percent. Overall, the impression from average business leaders in the survey say being a sustainable business costs "a little more."
The most helpful piece of information from this survey, though, might be the information about what motivates sustainability shifts. The top two drivers, according to these execs, were investor pressure and regulation. Consumer pressure matters, but not as much as the pocketbook and the law.
Not surprisingly, opinions on whether greening a business was going to pay off financially closely mirrored the actual adoption of green initiatives. The bosses who aren't doing anything to increase sustainability were way more likely to say it doesn't pay. That may be because they're just unconvinced, but they may also be in industries where, frankly, it doesn't boost the bottom line, even if it does help society.
That's were measurement comes in. The profits from sustainability need to be as accurately measured as profits from pollution. "Measuring sustainability performance and results is the first practical step business leaders need to make, but requires new skills and proven methodologies," Berthon says.

Solar May Be Cheaper Than Fossil, Nuclear Power in Five Years, GE Says

A combination of improvements in solar efficiency and lower costs through increased manufacturing will gradually bring down the cost of solar power.  Though fossil fuel prices are volatile, the long-term trend is upward as increased demand and peak oil create a supply and demand inequity that will be exacerbated by any economic recovery.  Anyone considering investing in renewable energy, whether it's solar, wind, geothermal, wind, bio-fuel, or other sustainable power, has to look at projected prices of fossil fuels when calculating the financial advantage to their investment.  A small edge today could become a huge gain in just a few years.

From Bloomberg:


Solar power may be cheaper than electricity generated by fossil fuels and nuclear reactors within three to five years because of innovations, said Mark M. Little, the global research director for General Electric Co. (GE)
“If we can get solar at 15 cents a kilowatt-hour or lower, which I’m hopeful that we will do, you’re going to have a lot of people that are going to want to have solar at home,” Little said yesterday in an interview in Bloomberg’s Washington office. The 2009 average U.S. retail rate per kilowatt-hour for electricity ranges from 6.1 cents in Wyoming to 18.1 cents in Connecticut, according to Energy Information Administration data released in April.
GE, based in Fairfield, Connecticut, announced in April that it had boosted the efficiency of thin-film solar panels to a record 12.8 percent. Improving efficiency, or the amount of sunlight converted to electricity, would help reduce the costs without relying on subsidies.
The thin-film panels will be manufactured at a plant that GE intends to open in 2013. The company said in April that the factory will have about 400 employees and make enough panels each year to power about 80,000 homes.
Solar-panel makers from Arizona to Shanghai are expanding factories to add more cost savings that analysts say will sustain the industry’s expansion. Installations may increase by as much as 50 percent in 2011, worth about $140 billion, as cheaper panels and thin film make developers less dependent on government subsidies, Bloomberg New Energy Finance forecast.

Solar Costs Dive

The cost of solar cells, the main component in standard panels, has fallen 21 percent so far this year, and the cost of solar power is now about the same as the rate utilities charge for conventional power in the sunniest parts of California, Italy and Turkey, the London-based research company said.
Most solar panels use silicon-based photovoltaic cells to transform sunlight into electricity. The thin-film versions, made of glass or other material coated with cadmium telluride or copper indium gallium selenide alloys, account for about 15 percent of the $28 billion in worldwide solar-panel sales.
First Solar Inc. (FSLR), based in Tempe, Arizona, is the world’s largest producer of thin-film panels, with $2.6 billion in yearly revenue.

Smart Grid

Little also said the U.S. transition to a full smart grid will take “many, many years” to develop.
A complete smart grid would consist of millions of next- generation meters installed in businesses and homes, appliances that adjust their energy use when prices change, and advanced software to help utilities control electricity flows, he said.
“I think it’s going to be a long time before we can realize the full potential of the smart grid,” he said. “But it is coming.”
GE this year plans to introduce the “Nucleus,” a device that will let consumers track their household electricity use with personal computers and smart phones. The company also is investing in its appliance and lighting unit, including $432 million for U.S. refrigeration and design centers announced in October.
Utilities need to have incentives to put in place devices that save energy, and Congress needs to provide greater certainty on tax policy surrounding renewable energy, Little said.

Google invests $55 million in Mojave Desert wind farm

I think Google likes doing things that are just plain good, regardless of whether or not they're profitable.  In many cases, like their award for the 100-mpg car, their actions spur others to think and behave in a manner that's good for the planet.  Will a significant investment in a wind farm make a difference?  I sure hope so.

From The L.A. Times:

Google Inc. is investing $55 million in a large Mojave Desert wind farm, pumping fresh air into California's struggling wind power industry.

The Internet search giant made the announcement in Anaheim at the industry's largest gathering, where wind farm developers and turbine makers said the investment could be a key step in California's efforts to regain its once enviable title as the world's capital for wind power.

"We just fell off a cliff," said Gary Polakovic, a consultant for San Diego wind energy developer EnXco Inc. "But all eyes are on California now. It's our chance to do this right."

Google said Tuesday that it was partnering with Citibank, which is also shelling out $55 million to help finance part of the Alta Wind Energy Center, one of the world's largest wind installations.

When complete, the project in the Tehachapi Mountains will generate 1.5 gigawatts, enough to power 450,000 homes. The installation will help boost wind jobs in the state 20% while feeding more than $1.2 billion into the Kern County economy, according to developers.

The project stands in stark contrast to the state of wind turbines in California.

In the industry's early years, California led the way, with its turbines generating 90% of the world's wind power as thousands of massive propellers dotted mountains from Palm Springs to San Francisco.

But in recent years, California — hurt by permitting delays and expiring government incentives — has seen its share of the world's wind power plunge to 1.6% as other states and countries bolstered their alternative energy projects, according to the Global Wind Energy Council. The state gets just 3% of its electricity from wind, compared with 15% in Iowa and 8% in Texas.

"We stalled and fell behind," said Lorelei Oviatt, planning director for Kern County. "It's not just where the wind blows — if it were that simple, everyone would be happy."

California's woes have been a magnified version of the troubles facing the national wind industry, analysts said.

Last year, the market was "in distress," said Denise Bode, chief executive of the American Wind Energy Assn., the trade group that organized the Anaheim conference. The amount of generation capacity installed was half the amount of the year before. The U.S. trailed China in 2009, even though it was a record year, and was eclipsed again in 2010.

Things are still looking "pathetic," said Jonathan Kim, a power and utilities analyst with Royal Bank of Scotland. Attempts by inexperienced real estate developers and farm owners to launch wind projects have failed by the thousands, he said.

"Sales are low, everyone's stock is depressed, and we're seeing a lot of people struggling," Kim said. "It's just not a good time for the sector."

Unpredictable government incentives that expire every year or two are a major culprit, he said. A substantial federal tax credit is set to end in January, and investors fear that it won't be renewed.

Critics have also ramped up complaints that turbines are noisy eyesores that kill birds and reduce property values.

But even in such a sour environment, many analysts and industry officials said California is poised to return to its heady days.

The state is hosting the wind conference for the first time since 2007. The confab at the Anaheim Convention Center is expected to draw 20,000 people, up from 7,000 four years ago.

Big tech companies such as Google, with its massive data centers that need huge amounts of electricity, are helping refuel the industry. Google has pumped at least $400 million into alternative energy projects, including an Oregon wind farm and an offshore transmission project on the East Coast. The company has also plunged $168 million into BrightSource's Ivanpah solar installation.

The industry could also benefit from a new clean power standard, the most aggressive one in the country, signed by Gov. Jerry Brown last month. The legislation, which requires California's utilities to get 33% of the electricity they sell from renewable sources by 2020, has already led some companies to open new offices in the state.

In Kern County, saddled with 17.5% unemployment, wind is fast becoming one of the best hopes for jobs and tax revenue. Turbines taller than the Statue of Liberty are popping up in the Tehachapis, part of ambitious projects such as the Alta installation. Major efforts are also underway in the state's Sonoma and San Gorgonio regions.

"We're seeing this as a renaissance of California's lead in the wind sector," Bode said.

Investment in solar energy is strong - outside the U.S.

While I post many stories about American individuals, companies, and governments investing in solar energy - often very significant investments - the amount of money invested in this country, and the amount of energy being supplied by solar and other renewable energy sources is relatively small compared to both our usage and the investment being made overseas.

From Bloomberg:


Masdar, Abu Dhabi’s state-owned renewable energy company, is working on a portfolio of renewable power generation projects worth about $5 billion, according to Frank Wouters, the director of Masdar Power.
In Spain, the company has three solar projects worth about $1 billion, Wouters said at a media briefing in Abu Dhabi today. A 20-megawatt plant will start producing power this month and two 50-megawatt facilities will start this year, he said. Masdar also has stakes in the 1-gigawatt London Array offshore windfarm and a 6-megawatt offshore wind project in the Seychelles.
Abu Dhabi, which holds almost all the oil reserves in the United Arab Emirates, is investing in solar and wind power all over the world to pioneer the use of renewable energy. The emirate is building Masdar City, a business and residential complex designed to minimize carbon emissions, and serves as headquarters for the International Renewable Energy Agency.
Masdar is a key component of Abu Dhabi’s aim to generate at least 7 percent of the power it uses from renewable sources by 2020. Growth in power demand to more than 20,000 megawatts by the end of the decade would require about 1,500 megawatts from projects such as wind and solar plants, according to data from Abu Dhabi’s utility.
The company’s domestic projects include the Shams 1 project, the largest concentrated solar plant in the Middle East, which is 45 percent complete and will be ready next year, according to a statement received by e-mail today. Masdar expects to award a construction contract for the 100-megawatt Noor 1 photovoltaic plant by the end of 2011 and may start building a 30-megawatt wind farm on Sir Bani Yas island.
Concentrated solar plants reflect sunlight, usually with mirrors, to heat liquids and create steam to turn turbines and generate power. Photovoltaic plants use solar panels, which convert sunlight directly to electricity. Masdar already operates a 10-megawatt facility of this type in Abu Dhabi.

From Reuters:

Solar power in India could cost the same as conventional electricity by 2019-20, a report said on Tuesday, which could boost the use of an energy source regarded as key to curbing emissions in the world's third-worst carbon polluter.
A KPMG report said more aggressive policy could see solar power prices decline at a rate of 5-7 percent annually over the next decade, ensuring "grid parity", or the point when solar power costs the same as conventional power, as early as 2017-18.
Such targets are well in line with India's plans to produce 20 gigawatts (GW)of solar power by 2022, though hurdles such as steep production costs, lack of data and trained manpower remain. [ID:nL3E7GN11C]
"The pace at which the gap between solar power tariffs and the landed cost of power will be bridged will determine the pace at which solar power will take off," the report said.
"While we expect grid parity for these consumer categories -- domestic and agriculture -- in 2019-20, based on state-specific and end-use specific cost economics, the adoption of solar is likely to happen earlier."
It said certain states such as Rajasthan and Gujarat in the west and Tamil Nadu in the south could reach grid parity earlier than others because of more favourable policies and sunnier weather, thereby reducing costs.

First Large Scale 24/7 Solar Power Plant to be Constructed in U.S

Using a method not too different from that which Archimedes is believed to have used to thousands of years ago, this plant will focus the Sun's rays on a single collector, raising the temperature to over one thousand degrees.  Being able to store the heat and release it later when the sun isn't shining overcomes one of the primary drawbacks to solar power generation.

From Clean Technica:


The Obama administration provided a loan guarantee of $737 million to SolarReserve on Thursday to construct the first large-scale solar power plant that stores energy and provides electricity 24 hours a day, 7 days a week. The solar power project will be constructed in Nevada. (Note that BrightSource Energy is at a similar stage in the development of a larger solar thermal power plant in the Mojave Desert, receiving a DOE loan guarantee of $1.37 billion in February 2010 and $168 million from Google this April.)
The SolarReserve power plant utilizes what is called thermal energy storage to store heat collected from the sun, which is then utilized by the power plant to boil water and produce steam. The steam then turns a steam turbine which generates electricity. This is a how a solar thermal power plant generally works, but keep in mind that there are different types of solar thermal power plants, some of which are not steam.
This type collects heat and stores it in molten salt which is then circulated to the boiler. The boiler… boils water into steam which then rushes through a steam turbine.
17,500 heliostats* focus or concentrate sunlight onto the collector at the top of a 640-foot tall tower until it reaches a temperature of 1,050 degrees Fahrenheit.
The power plant’s electricity generation capacity (basically, how much it can generate) is 110-MW, which makes it one of the larger-scale solar power plants out there today.
You might have guessed by now that this type of power plant is able to provide electricity at night, and all week, because it stores heat in the form of salt that is released in the evening so that the plant can continue to generate electricity when it is dark, cloudy, or stormy.
“This solar technology is a genuine alternative to baseload coal, nuclear or natural gas burning electricity generation facilities,” Kevin Smith, SolarReserve’s chief executive, said in a statement.
Opponents of solar energy usually use the fact that there is no sunlight at night against solar power plants and say that they cannot provide electricity at night, which is not true. It is actually a cost issue that makes it impractical (traditionally, I’m not sure how economical this new plant or others like it will be) to generate electricity at night using a solar plant.
Hopefully this milestone project turns out to be economical and works well.
*A heliostat is a motorized mirror which is able to position itself accordingly so that it can reflect the maximum amount of sunlight required onto the collector in conjunction with thousands of others.

Don’t let California’s solar initiative go dark

When I was a child learning to ride a two-wheeled bicycle, my dad would hold the back of the seat and run alongside of me as I pedaled down the sidewalk.  Because of the significant investment required by homeowners who want to add solar power to their houses, many need continued government incentives to "hold the seat" for them until economies of scale bring down the costs of producing photovoltaic panels.

From Signon San Diego:


Gov. Jerry Brown and the California Legislature have enacted the nation’s strongest standard for renewable energy, calling for 33 percent of California’s electricity to come from clean and renewable sources by 2020. To achieve these goals, the Legislature must extend the California Solar Initiative. CSI is the nation’s most successful solar installation program, and already has saved Californians over $1 billion.
The program is running out of funds, and Sen. Christine Kehoe, D-San Diego, has sponsored Senate Bill 585 to enable the Public Utilities Commission to complete the incentive program. Without this important bill, California could miss out on billions more in savings.
Since 2007, the incentive program has helped drive the average cost of solar systems down 15 percent while creating 36,000 jobs, and providing $1.3 billion in net energy savings to schools, public agencies and nonprofits. It also spurred private investment, with the PUC reporting that for every dollar the state spent on incentives, another $2.62 was invested in California solar from other sources. The program has helped make California a national leader in creating solar energy jobs and attracting clean energy investment. Because of the value it provides to ratepayers, the watchdog Department of Ratepayer Advocates also supports the continuation and expansion.
CSI was designed as a 10-year program. Due to its overwhelming success, it has accomplished eight of 10 steps in the first five years, and outpaced its funding. The nonresidential program, which provides solar incentives for businesses, governments, schools and nonprofits, has run out of budget. Filling in that shortfall would require $190 million in funding. But because of the declining rate structure, it would fund at least 400 megawatts of clean electricity, some 20 percent of the program’s goal.
The governor has just enacted a strong mandate for clean energy, but a mandate alone will not put projects in the ground. A smart incentive program enables the renewable energy industry to grow in the short term so it can provide a foundation for our state’s prosperity in the long term.
While the state’s 33 percent renewable energy by 2020 mandate is a worthy long-term goal, passing SB 585 and fully funding the CSI program would spur investment and create renewable energy jobs today. There are more than 50 megawatts worth of solar energy projects in the queue waiting for this bill to pass. That’s $250 million in investment that California sorely needs. Passage of SB 585 would bring in $2 billion more.
Extending the incentive program will bring other benefits as well. By supporting the market, it will help drive down the costs of mid-scale distributed solar. Siting solar projects in proximity to businesses and cities can generate significant amounts of power without the environmental impacts or lengthy transmission lines of large-scale desert solar. Mid-scale solar is cost-effective and environmentally friendly, but it’s a challenge because rooftop space is limited, and land is expensive.
That’s why our company, SPG Solar, recently introduced the world’s first operational floating solar energy system. Our Floatovoltaics system is designed for installations on fresh water surfaces, ranging from small ponds to large reservoirs. Floating solar projects can create clean energy right in the towns and businesses that need it, without using up valuable real estate, or impacting delicate ecosystems. Being sited over the water not only reduces evaporation, but also boosts performance by keeping the solar panels cool. Potential sites include many farms, dairies and wineries. A typical city reservoir could support three megawatts of panels, generating electricity for hundreds of homes and saving the city millions of dollars.
Extending the California Solar Initiative is the fastest way to continue this type of clean energy innovation. It will drive down costs, create jobs and spur immediate investment to help our economic recovery. By signing a mandate for 33 percent renewable energy, Gov. Brown has given us ambitious clean energy goals. By extending the incentive program, the Legislature can ensure these goals become a reality.

Toys 'R' Us Will Install Nation's Largest Solar Rooftop Array

Toys R Us isn't playing around when it comes to renewable energy.  A five megawatt solar array is a big investment that should provide a good return on investment over the life of the project.

From Care2:

It was recently announced that the New Jersey distribution center for Toys 'R' Us will soon be home to the largest rooftop array of solar panels in North America.

Upon completion, the 5.38 megawatt on-site solar mechanism will occupy 869,294 square feet of the Flanders, New Jersey building, and is estimated to generate 72 percent of the electrical needs for the Toys "R" Us facility.

Generating the same amount of electricity using non-renewable sources would result in the release of an estimated 4,387 metric tons of carbon dioxide, the equivalent emissions from 860 passenger vehicles or that of the electricity used to power 532 homes annually.

The solar power system will be comprised of thin-film photovoltaic panels that are flexible, lightweight, durable and maintain performance, even in sub-optimal lighting conditions. In addition, the non-ballasted, non-penetrating and removable racking system allows access to the roof and prevents debris build-up and maintenance issues.

"New Jersey's leadership in providing renewable, clean energy opportunities for companies has helped pave the way for an installation of this size and underscores the state as a champion for solar energy growth across North America," said Jerry Storch, Chairman and CEO, Toys "R" Us, Inc.

Earlier this month, Care2's Kristina Chew reported that New Jersey is second in solar capacity in the US, only behind my native state of California. Unfortunately, residents in some of the well-endowed neighborhoods have complained about newly-installed solar panels because they're "ugly" and could lower their property values.

In January 2010, a rooftop solar power system was installed at the Babies "R" Us in North Brunswick, NJ through a partnership with the developer. This was the first "R" Us store to utilize solar energy, which currently provides approximately 67 percent of the electricity needs at that location.

3D Solar Cell Boosts Efficiency By 80 Percent

One major hurdle to widespread implementation of solar power is the high initial cost relative to the savings, or payback.  Tax incentives and other government subsidies help many homeowners overcome that obstacle.  Technological improvements and lower costs due to economies of scale will also help.  Previous photovoltaic panels converted a small portion of the sun's energy into electricity (the rest was reflected or converted to heat).  The news below could be a huge boost to the industry, if the cost to produce panels doesn't jump.

From Energy Matters:

Scientists at the USA's Dept. of Energy’s Oak Ridge National Laboratory have created a three-dimensional solar cell which could boost photovoltaic (PV) light-to-energy conversion rates by 80 percent.
 
Typically, when sunlight is strikes the surface of a solar panel and is absorbed by PV cells, some of the charge created by solar photons becomes trapped by natural flaws in the bulk materials that make up the layers of the cell, resulting in a loss of final electricity output.

Optimising the energy efficiency of these charges – negative electrons and positive "holes" – was the focus of the Oak Ridge team, led by Jun Xu, of ORNL's Chemical Sciences Division.

"To solve the entrapment problems that reduce solar cell efficiency, we created a nanocone-based solar cell, invented methods to synthesize these cells and demonstrated improved charge collection efficiency," Xu said.

Oak Ridge’s 3D solar cell uses zinc-oxide n-type nanocenes to serve a framework for conducting electrons. A p-type matrix of polycrystalline cadmium telluride – often used in thin-film solar panel manufacture - serves as the primary photon absorber medium and hole conductor.

With the new structure and materials, the new cell demonstrated a light-to-energy conversion efficiency rate of 3.2 percent, compared to 1.8 percent efficiency of a conventional two-dimensional solar cell structure.

"We designed the three-dimensional structure to provide an intrinsic electric field distribution that promotes efficient charge transport and high efficiency in converting energy from sunlight into electricity," Xu said.

A world leader in solar energy research and development, Oak Ridge National Laboratory scientists are also working on a hybrid solar cell that harnesses the light-harvesting abilities of photosynthetic bacteria.
 
Unfortunately, Oak Ridge National Laboratory appears to have attracted some unwanted attention recently and last week shut down email and internet access after a virus designed to steal technical information successfully invaded its network.

The Top 10 Solar States

1. California: 47 percent with 971 megawatts
2. New Jersey: 14 percent with 293 MW
3. Colorado: 5 percent with 108 MW
4. Arizona: 5 percent with 101 MW
5. Nevada: 5 percent with 97 MW
6. Florida: 4 percent with 73 MW
7. New York: 3 percent with 54 MW
8. Pennsylvania: 3 percent with 54 MW
9. New Mexico: 2 percent with 45 MW
10. North Carolina: 2 percent with 42 MW

Solar Mosaic: Bring Solar to Your Community for Just $100

Innovative ways to finance solar projects, such as this one, which allows users to buy in increments much smaller than a full solar array for their home, are ways to implement solar energy across the country.

From Good:


solar mosaic, solar, solar energy, solar power, mosaic
We're always interested in innovative ways to finance solar energy, so we were excited to see this recent post from Daniel Kessler. There are plenty of reasons you might not be investing in photovoltaic panels. Maybe you're a renter. Maybe your home doesn't get enough direct sun. Or most likely it's cost: the upfront expense of covering your roof with solar panels is often prohibitive. So maybe you can't afford a complete solar array for your home.
Through the new Solar Mosaic program in Oakland, you can pay $100 for a "Tile" of solar arrays. That "Tile" is part of a broader solar "mosaic" (get it?) that is installed on the roof of a local school, church, nonprofit, community center, or anywhere with a big roof. In essence, the Tile is a $100 share of a local community-based solar project.

Solar Electricity Through The Magnetic Effect Of Light

Other than nuclear power, all the energy on earth comes from the sun.  Even fossil fuels are made from the decaying ancient plant and animal matter that received its initial energy from the sun.  Compared to the amount of energy we use each day, the amount that we receive from the sun is staggering.  We only need to capture a small percentage of it to meet our power needs.  For this reason, I'm always encouraged by new technologies that find different ways of harnessing this tremendous renewable resource.

From Energy Matters:

Scientists from the University of Michigan have found a new way to capture solar energy without using solar panels and inadvertently discovered a new law of physical motion that has been overlooked for 100 years in the process.
 
By harnessing a "dramatic and surprising" magnetic effect of light, the research team, led by Professor Stephen Rand from UM’s Department of Applied Physics, say they could produce solar power without using expensive semiconductor-based solar cells.
 
Although light, like all physical forces, has electric and magnetic effects, until now it was thought the magnetic properties to be too weak to be utilised in any useful way. But when Rand and his team focused light through a non-conductive material, they found the isolated magnetic properties were enhanced by up 100 million times the amount previously expected.
 
Under these circumstances, the usually negligible magnetic effects of light develop strength equivalent to a strong electric effect. Professor Rand was stunned.
“You could stare at the equations of motion all day and you will not see this possibility,” he said. "It’s a very odd interaction. That’s why it’s been overlooked for more than 100 years."
 
The team used glass and lasers to shine intense light and separate the magnetic current, creating an “optical battery.”
 
When a solar panel is exposed to the sun's rays, electron activity is generated and capture fine finger-like electrical contacts distributed across the panel. This is then routed through the junction box on the back of the panel and emerges as electricity. Rand says the new process does not absorb light; instead, intense light energy is used to create huge quantities of magnetic force, which can be converted to electricity.

The UM researchers hope to create a new generation of solar harvesting hardware without semiconductors, which are needed to produce charge separation from solar energy in solar panels. They say the new technique could make solar power cheaper, and predict a light-to-energy efficiency rate of 10 percent, which is under polycrystalline and monocrystalline panels, but on par with some thin film solar panels.

"To manufacture modern solar cells, you have to do extensive semiconductor processing," team member William Fisher says. "All we would need are lenses to focus the light and a fibre to guide it. Glass works for both. It’s already made in bulk, and it doesn’t require as much processing.