[PAR] [TLE] NRG Energy [SEP] NRG Energy, Inc. is a large American energy company, dual-headquartered in West Windsor Township, New Jersey, and Houston, Texas.  It was formerly the wholesale arm of Xcel Energy, and was spun off in bankruptcy in 2004. [PAR] [TLE] Avra Valley Solar Generating Station [SEP] The Avra Valley Solar Generating Station is a 34 MW (DC, 25 MW AC) photovoltaic power plant in Avra Valley, Pima County, Arizona, owned by NRG.  It uses single axis tracking that is designed to be maintenance free over the twenty year design life of the system.  The panels are mounted on a north-south axis and rotate each day to follow the sun from sunrise to sunset, increasing the output by about 20%.  Power is being sold to Tucson Electric Power in a 20-year power purchase agreement.
[PAR] [TLE] NRG Energy [ SEP ] NRG Energy , Inc. is a large American energy company , dual - headquartered in West Windsor Township , New Jersey , and Houston , Texas . It was formerly the wholesale arm of Xcel Energy , and was spun off in bankruptcy in 2004 . [PAR] [TLE] Avra Valley Solar Generating Station [ SEP ] The Avra Valley Solar Generating Station is a 34 MW ( DC , 25 MW AC ) photovoltaic power plant in Avra Valley , Pima County , Arizona , owned by NRG . It uses single axis tracking that is designed to be maintenance free over the twenty year design life of the system . The panels are mounted on a north - south axis and rotate each day to follow the sun from sunrise to sunset , increasing the output by about 20 % . Power is being sold to Tucson Electric Power in a 20-year power purchase agreement .
What cities are the headquarters for the company that owns Avra Valley Solar Generating Station?
What cities are the headquarters for the company that owns Avra Valley Solar Generating Station ?
West Windsor Township, New Jersey, and Houston, Texas
West Windsor Township, New Jersey, and Houston, Texas