The Mesquite Solar project is a 512.5-megawatt (MWAC) photovoltaic power plant in Arlington, Maricopa County, Arizona, owned by Sempra Generation and Consolidated Edison Development Inc. The first three phases of the project were constructed using more than 2.1 million crystalline silicon solar panels made by Suntech Power. Mesquite 4 and 5 added another 112.5 MW and 70 MW of battery storage.