Black Rock Geothermal Project (BRGP)

The Black Rock Geothermal Project (BRGP) is proposed to be developed by Black Rock Geothermal, LLC, an indirect, wholly owned subsidiary of BHE Renewables, LLC (BHER). The project is on 55 acres of a 160-acre parcel in unincorporated Imperial County, bounded by McKendry Road to the north, Severe Road to the west, and Boyle Road to the east. The town of Niland is approximately eight miles to the northeast, and the town of Calipatria is approximately six miles southeast of the plant site.

BRGP would have a maximum continuous rating of approximately 87 megawatts (MW) gross, with an expected net output of roughly 77 MW. The project includes geothermal production wells, pipelines, fluid and steam handling facilities, a solids handling system, a Class II surface impoundment, a service water pond, a retention basin, process fluid injection pumps, and injection wells.

Main components of MBGP include a steam turbine generator system, geothermal fluid processing system, one seven-cell cooling tower, 12 wells (including production and injection wells) and 7 well pads, and a 2.2-mile long aboveground interconnection to the Imperial Irrigation District switching station.