The District’s Board of Directors authorized entering into a 25-year power purchase agreement (PPA) with Borrego Solar. Borrego Solar will operate and maintain the solar facilities on District owned property and will in turn sell all power produced by these facilities to the District at a fixed reduced rate.

Unlike PG&E rates, the rate included in the PPA will not be subject to annual or other incremental increases. The fixed rate varies with each site, but is planned to average $0.09 /kWh for all power produced.  PG&E rates vary based on time of day and total energy used.  Currently PG&E rates average $0.12 /kWh for the two sites.

Per PG&E’s current NEM 2.0 program, power produced from the new solar fields will be used to offset only power consumed PG&E meters at the District’s El Dorado Hills and Deer Creek Wastewater Treatment plants.

The new solar facility has been sized to offset approximately 69% of the power consumed at the UV disinfection facility. The existing solar facility will continue to offset approximately 47% of the power consumed through the remaining plant processes. Together approximately 60% of the total power consumption of the plant will be offset by solar.

Deer Creek Wastewater Treatment Plant
Site 1 at Deer Creek has been sized to offset approximately 69% of the power consumed at the plant's UV disinfection facility.  Site 2 has been sized to offset approximately 79% of the power consumed at the headworks and aeration basins, and other processes throughout the plant.

Together approximately 70% of the total power consumption of the plant will be offset by solar.