NRG Energy has signed an agreement with eSolar to develop solar power plants with a total generation capacity of up to 500 megawatts (MW) at sites in California and the Southwest. The first plant is expected to begin producing electricity as early as 2011.

"By coupling NRG's construction capabilities and regional operating expertise with eSolar's innovative CSP technology, we can advance NRG's renewable energy portfolio while helping to accelerate development of these important projects on a commercial scale." -- Michael Liebelson, Chief Development Officer - Low Carbon Technology, NRG Energy