According to the title of an article published in The City of Lancaster’s Outlook (Fall 2009) magazine “The Future Looks Bright for Solar Power in Lancaster”.

My small town,  all 475,000 of us, are at the forefront of solar energy! On August 5, 2009, eSolar unveiled the 5 MW (mega watt) demonstration plant known as Sierra SunTower. The solar power plant has 24,000 mirrors and two giant tower house boilers. The boilers create what’s known as “thermal solar” which is said to be more cost-effective than the standard photovoltaic approach used in solar cells. The process creates steam to drive the turbine generators. The project was completed in 14 month time frame and has already begun to distribute power to Southern California Edison.

eSolar’s site says “Sierra SunTower will supply 5 MW of clean, renewable energy to the grid. This full-scale power plant, the only one of its kind in the U.S., produces electricity for Southern California Edison (SCE) and will power up to 4,000 homes.”

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At a time when major U.S. companies are announcing job layoffs almost daily, the renewable energy industry is hiring new workers every day to build wind farms, install rooftop solar arrays, and build solar thermal and geothermal power plants. The output of industrial firms that manufacture the equipment for these energy facilities is expanding by well over 30 percent a year. These investments both create jobs and help prevent climate change from spiraling out of control.

Among the several sources of renewable energy, wind looms large. The United States has 24,000 megawatts of wind generating capacity already online (think 24 coal-fired power plants), and 83 wind farms with some 8,000 megawatts of capacity are under construction. Beyond this, a staggering 225,000 megawatts of planned wind farms are waiting for access to transmission lines.

Currently, the United States has 40 plants manufacturing wind power components. Eight of these plants are assembling wind turbines, 20 are fabricating wind towers, and 12 are making blades. In addition, many more manufacturing facilities are under construction, recently announced, and in planning. Every billion dollars invested in wind farms creates some 3,350 jobs—nearly four times the 870 jobs created with a similar investment in coal-fired power plants. (See data.)

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Solar energy currently generates .1% of the electricity used in the U.S. According to a study released today, this will change rapidly as the cost of electricity increases and the cost of solar energy drops.

The Utility Solar Assessment Study produced by Clean Edge and Co-op America finds that solar energy is already reaching cost parity with conventional sources in some areas of the U.S. where electric rates are highest. By 2015, this will be achieved in many more areas, including Boston, San Diego, and New York. By 2025, cost parity will be achieved throughout the U.S.

The implications of this are huge. The U.S. solar photovoltaic market now relies heavily on state incentives to lower the cost of solar energy. Many people utilize solar energy because it is “the right thing to do” or businesses like the positive publicity solar brings.

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One of the most common arguments against large-scale use of renewable energy is that it cannot produce a steady, reliable stream of energy, day and night. Ausra Inc. does not agree. They believe that solar thermal technology can supply over 90% of grid power, while reducing carbon emissions.

“The U.S. could nearly eliminate our dependence on coal, oil and gas for electricity and transportation, drastically slashing global warming pollution without increasing costs for energy,” said David Mills, chief scientific officer and founder of Ausra.

You may be wondering, how will we have electricity at night or during cloudy weather?
Will we use large banks of batteries or burn candles?

The ability to utilize solar thermal technology after the sun sets is made possible by a storage system that is up to 93% efficient, according to Ausra’s executive vice president John O’Donnell.

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CSR Wire

“The game is part of IBM’s TryScience initiative and [was] launched at Engineer’s Week 2008 opening on February 16 in Washington, D.C. The game, which can be played alone or together, features a planet in near ecological ruin where three exciting missions for solar, wind and water power must be solved before sandstorms, floods or SmogGobs thwart the rescue.”

Problems with silicon-based solar electricity (PV)

In the world of solar electricity generation, the price and shortage of silicon have been barriers to wider adaptation of solar photovoltaic (PV), especially as demand continues to rise. Solar PV’s efficiency in converting sunlight to electricity has also been criticized. That’s why non-silicon-based alternatives are especially attractive. I spoke with Gregg Clevenger, CFO of Infinia Corporation, on Monday (February 11) to find out what his company is up to and why renewable energy advocates are all atwitter about it.

According to Gregg, “We set out to address climate change and went back to ground zero with our Stirling engine product, to develop it into a design that is simple enough to be mass-produced widely and to generate solar electricity at 20-30% of the cost of solar PV.”

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Arizona is making an effort to bring electricty to it’s Native American residents through a new program called the Tribal Rural Electrification Program. Arizona Gov. Janet Napolitano announced the new initiative Wednesday, saying the first phase will bring solar power to at least 100 reservation homes by the end of the year.
It’s not a lot, but it’s certainly a beginning.

The Arizona Department of Commerce Energy Office will run the program, with the help of Arizona State University Polytechnic Campus’ Photovoltaic Testing Laboratory. Arizona utilities and solar power companies will also partner in the initiative.

What are other states doing?

Source:  The Arizona Business Journal

Gary founded his company in 1976, and he tells the story of what happened to solar power, and how it’s coming to the forefront once again. Gary serves on the board of directors of several non-profit organizations including a non profit solar industry trade association, the California Solar Energy Industries Association (CALSEIA). He is also a mamber of ADPSR (Architects, Designers, Planners for Social Responsibility).