600 MW Arizona Solar Power Plant Planned

When it comes to solar power, Sempra Generation isn’t messing around. Not long after their massive Copper Mountain Solar Facility in Nevada went online, the company has announced that, through a subsidiary, it has entered into a 20-year power-purchase agreement with Pacific Gas & Electric (PG&E) to sell 150 megawatts (MWs) of solar power produced at its Mesquite Solar I project in Arizona.

In keeping with Sempra’s ambitious renewable energy goals, Mesquite Solar I is the first phase of an overall solar complex planned for the Arlington area (about 40 miles west of Phoenix). The company currently owns or controls enough land to build up to 600 MWs of solar power at the site, which would make it the largest photovoltaic solar power plant in North America. (Eclipsing the scale of the Copper Mountain Complex in Nevada, also owned by Sempra.)


image via Sempra Generation

The Mesquite solar installation is slated to connect to the power grid at the Hassayampa switchyard, located nearby. This switchyard is a major energy hub to consumer markets throughout the Western U.S. (including, we assume, both southern California and Las Vegas).  Upon completion in early 2013, Mesquite Solar I will produce enough juice to power approximately 56,000 American homes.

Like what you are reading? Follow us on RSS, Twitter and Facebook to learn more and join the green technology discussion. Have a story idea or correction for this story you are reading? Drop us a line through our contact form.

Susan DeFreitas has covered all manner of green technology for EarthTechling since 2009. She is a graduate of Prescott College for the Liberal Arts and the Environment, and has a background in marketing green businesses. Her work on green living has been featured in Yes! Magazine, the Utne Reader and Natural Home.

1 Comment

  • Reply December 16, 2011


    Who will be the electrical contractor on the mesquite solar job.

Leave a Reply