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Solar Energy Jumps to 22% of New US Generation Capacity in 2013

Natural gas was the clear winner in capacity additions for electric utilities in 2013, but grid-scale solar was the clear runner up, providing about 22 percent of new generating capacity.

Solar’s contribution is up significantly from 2012, when it provided less than 6 percent of new generation, according to the U.S. Energy Information Administration

The jump in solar is unsurprising when looking at the geographic breakdown. Nearly half of the capacity last year was in California, which has a mandate for 33 percent renewable energy by 2020. Although solar is still only a small fraction of overall generation capacity, the solar industry is close to being a mainstream energy source in the U.S., according to Shalye Kann, VP at Greentech Media.

In October, nearly three-quarters of new utility-scale capacity in the U.S. was solar power. California is leading in adding distributed solar and new natural gas power plants, as well.

The growth in natural gas power plants in the U.S., is not only because of low gas prices, but also because of the ability for the gas-fired plants to provide flexible generation amidst increasing rates of wind and solar.

California also passed legislation in 2010 for once-through power plants to retrofit or reduce water consumption in the next decade, which will drive the retirement of older, thermal power plants — where the cost of upgrading is more expensive than building new gas or renewable capacity.

The picture for 2014 could look like last year — with its strong growth in renewables.  Wind projects that began in 2013 and claimed the tax credit would be completed in 2014 and state renewable portfolio standards will continue to drive utility-scale solar growth.

In January, 100 percent of new generating capacity came from renewable energy. 


Is solar mainstream yet? Hear perspectives from NRG Solar, SolarCity, Sunpower, and PSEG Power Ventures at Solar Summit. To learn more about Greentech Media’s flagship annual solar conference, visit:

greentech mediaGreentech Media (GTM) produces industry-leading news, research, and conferences in the business-to-business greentech market. Our coverage areas include solar, smart grid, energy efficiency, wind, and other non-incumbent energy markets. For more information, visit: , follow us on twitter: @greentechmedia, or like us on Facebook:

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John Miller's picture
John Miller on Apr 10, 2014

Increased solar power new installed ‘capacity’ over the past year is definitely a good trend.  Actual solar ‘net power generation’ doubled 2012-2013 from 4,327 GWh to 9,252 GWh.  This still only represents an increase of solar’s contribution towards total U.S. electric power net generation-consumption of 0.1% to 0.2%.  Solar will definitely have a role in displacing fossil fuels in the future, but annual new capacity installations must increased by many magnitudes for its contribution to become more significant.  Installed cost unfortunately continues to be a significant accelerated expansion barrier.

Robert Bernal's picture
Robert Bernal on Apr 12, 2014

It should have been the closed cycle so we can show the world that an acceptable (meltdown proof) nuclear is available for the prevention of global warming AND for the economic growth of billions who are still in poverty.

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