By Kari Williamson

Avra Valley will consist of First Solar's thin-film solar modules mounted on single-axis tracker systems. The power will be sold to Tucson Electric Power under a 20-year power purchase agreement (PPA).

Construction of the thin-film solar plant is expected to begin this month and could create an estimated 200 jobs. First Solar expects to complete Avra Valley by the end of 2012.

"NRG and First Solar have built a very strong working relationship, starting with our first 21 MW project in Blythe, California, to our most recently completed 20 MW Roadrunner solar generating station in New Mexico," says James Kelly, Director of Development for NRG Solar.

"We look forward to working with First Solar on the Avra Valley project that, when completed, will help Arizona meet its renewable energy goals."