Massive solar projects slated for California Desert


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SCE 550 MW Solar Projects expand utility-scale photovoltaic capacity via PPAs with First Solar at Desert Sunlight and Stateline, boosting California renewable energy, grid integration, transmission upgrades, EV charging, and battery storage.

 

The Latest Developments

Two utility-scale PV plants, Desert Sunlight and Stateline, 550 MW under SCE PPAs, slated to deliver 13B kWh by 2015.

  • 250 MW Desert Sunlight; 300 MW Stateline in San Bernardino County
  • Built and operated by First Solar under long-term PPAs
  • SCE to purchase 13 billion kWh from these PV plants
  • Construction starts 2012-2013; commercial operation by 2015

 

This will give you a sense of how much green power Southern California Edison (SCE) buys: only five percent of the renewable energy the company purchases is solar, but it is also the largest buyer in the entire United States.

 

The sources supplying SCE represent 65% of the nation's solar supply. And the company just upped its stake considerably, following plans for the nation's largest solar panel program that it announced earlier.

SCE just announced that it is partnering in two large-scale solar installations in southern California. We're talking BIG: The two total 550 megawatts, huge for solar, in two installations, 250-megawatt Desert Sunlight near Desert Center and 300-megawatt Stateline in northeastern San Bernardino County. The projects will begin in 2012 and 2013 and be up and letting the sunshine in by 2015.

According to Stuart Hemphill, senior vice president of power procurement, SCE agreed to buy 13 billion kilowatt hours of electricity from the two projects, which will be built and operated by First Solar, similar to a 550 MW California project the company has unveiled. It's a safe bet that these plants would never break ground without SCE's commitment. "These projects are powerful examples of large-scale photovoltaic solar generation becoming a reality in the U.S.," said John Carrington, a vice president at First Solar.

Hemphill says that SCE is currently buying 16% of its electricity from renewables, and its biggest source is geothermal (60%), followed by wind (20%), biomass (10%), solar (5%) and small hydro (5%). The company has been buying solar for 20 years, and currently has 354 megawatts under contract, so following its first commercial rooftop solar installations the two projects more than double its capacity.

"Solar is the most expensive form of power," said Hemphill, who wouldn't say what price SCE will pay (though he said it was the most attractive of several offers).

California is committed to meeting a goal of 20% renewable power by 2010, but that's next year and the state is still short of the target overall.

Building transmission lines is a big part of increasing renewable energy capacity, because solar and wind aren't of much use unless they're on the grid and connected to population centers. SCE is spending $2 billion on the Tehachapi Renewable Energy Project, connecting to a region with 4,500 megawatts of wind potential, and has signed on for more than 900 MW of wind energy to bolster supply.

In a recent speech, I heard SCE talk about its plans to add electric cars to the grid. Utilities have to be ready to add millions of them without adding any new power plants (except, maybe, solar ones. "We have excess energy off-peak," said the company's Ed Kjaer. "Let's start sucking that up first." I'm all for that. SCE is also looking at battery storage to capture renewable energy until it can be used on the grid. So batteries aren't just for EVs anymore.

 

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