Project Overview

The 150 MW / 1,200 MWh Sierra Luna Energy Storage facility will provide energy and capacity services to the SRP grid, enhancing grid reliability and accelerating the integration of locally produced renewable energy. The project will abide by the most stringent design and cutting-edge safety standards to ensure the project maximizes benefits to SRP’s infrastructure and all those serviced by SRP’s grid in the area. 

Construction of the Sierra Luna Energy Storage facility is anticipated to start in 2028. The 2029 completion of the facility will help SRP meets its reliability needs and reach its goal to reduce the amount of CO2 emitted by generation (per MWh) by 82% from 2005 levels by 2035 (~284 lbs./MWh) and reach net zero carbon emissions by 2050.  

The proposed facility is situated along a major transmission corridor feeding the Rudd Substation. The site’s location would be in an area with existing major utility infrastructure, minimizing environmental impacts. Sierra Luna’s proposed location is optimal for new energy infrastructure as it does not require long transmission lines to connect the facility to the power grid, is conducive to the surrounding land, and designed harmonious to the adjacent land uses. 

Proposed Site Layout