Desert Stateline Solar Facility is a 300 MW<sub>p</sub> (about 250 MW<sub>AC</sub>) utility-scale solar photovoltaic power station constructed by First Solar in San Bernardino County in California, USA. It is located at the base of Clark Mountain in California, across the state line from Primm, Nevada, and adjacent to the Ivanpah Solar Power Facility.
The project uses approximately 3.2 million panels from First Solar, an amount similar to the 250 MW<sub>AC</sub> Moapa Southern Paiute Solar Project.
The plant's first 150 megawatts (MW) came online in late 2015, and it entered full commercial operation in the third quarter of 2016. In September 2015, it was announced that Southern Company had purchased a controlling interest in the project. First Solar continues to operate the facility. Power is sold to Southern California Edison under a 20-year power purchase agreement.