Solar & Geothermal

In 2018, HL&P added geothermal and solar energy to the portfolio. Located in Hazen, Nevada, the Patua Power Plant includes a base-load geothermal facility that generates up to 25 megawatts and a 10-megawatt solar installation. The geothermal power plant is a binary facility with three Turbine Air Systems Organic Rankine Cycle (ORC) air-cooled units using Atlas Copco Turbines. HL&P is entitled to between zero and 12 megawatts of energy an hour, depending on plant generation. HL&P takes up to 11 MW of energy from this project.

The Red Mesa Tapaha Solar Resource is a 66 MW solar photovoltaic generation facility located on the Navajo Nation reservation in southeastern Utah. The facility became operational in June 2022.  UAMPS entered into a power purchase agreement with Navajo Tribal Utility Authority Generation-Utah, LLC, a subsidiary of Navajo Tribal Utility Authority (“NTUA”), which allows HL&P  to receive up to 5 MW of energy from this project.

The Steel Solar Resource is an 80 MWac solar photovoltaic generation facility located in Box Elder County, Utah. UAMPS’ members contracted for a 40 MW portion of Steel Solar 1(A). HL&P receives up to 6 MW of energy from this facility.