Mokelumne River Hydroelectric Project

Learn about the relicensing

Overview

PG&E is relicensing the Mokelumne River Hydroelectric Project (FERC Project No. 137). This page provides documents and resources related to the relicensing proceeding. This information is for agencies, community organizations, Tribes, interested parties and members of the public.

PG&E will update this site periodically.

Map showing the locations of facilities within the Mokelumne River Hydroelectric Project.

Project description

PG&E owns and operates the Mokelumne River Hydroelectric Project in Amador, Calaveras and Alpine counties in California. The project is located on the North Fork Mokelumne River and tributaries, as well as mainstem Mokelumne River. It includes facilities on federal lands. These federal lands are managed by:

Eldorado National Forest
Stanislaus National Forest
Humboldt-Toiyabe National Forest
Bureau of Land Management

Salt Springs Development

Salt Springs Development includes seven dams and reservoirs, one diversion structure, and the Salt Springs Powerhouse. The features of this development include:

Upper Blue Lake
Lower Blue Lake
Twin Lake
Meadow Lake
Upper Bear River Reservoir
Lower Bear River Reservoir, pictured below
Salt Springs Reservoir
Cole Creek Diversion
Salt Springs Powerhouse

A black and white photograph of Lower Bear Reservoir Dam. The image is captured from an elevated viewpoint, looking down over shrubs and boulders toward the water. Snow-capped peaks rise in the distant background under a clear sky.

Tiger Creek Development

Tiger Creek Development consists of two dams and reservoirs and one powerhouse. The features of this development include:

Tiger Creek Regulator Reservoir
Tiger Creek Forebay
Tiger Creek Powerhouse, pictured below

An aerial black and white photograph shows the Tiger Creek Powerhouse situated along a river in a forested, mountainous area. The main generating station stands beside the water with several outflow channels leading into the river. Nearby, smaller industrial buildings and residential houses are clustered along the hillside. Dense trees surround the facility.

West Point Development

West Point Development includes one dam and reservoir and a powerhouse. The features of this development include:

Tiger Creek Afterbay
West Point Powerhouse, pictured below

A black and white photograph of a fast-flowing river running through a forested valley, passing through West Point Powerhouse on the rocky bank. Tall trees surround.

Electra Development

The Electra Development includes two dams, one reservoir and a powerhouse. The features of this development include:

Electra Diversion Dam
Lake Tabeaud
Electra Powerhouse
Electra Afterbay Dam

FERC relicensing

The Federal Energy Regulatory Commission (FERC) issued the project's current 30-year license on October 11, 2001. The license expires on September 30, 2031.

PG&E will begin relicensing the project in 2026. The goal is to obtain a new license using FERC's Integrated Licensing Process (ILP). PG&E anticipates filing the pre-application document in September 2026. The final license application will be filed in September 2029. The ILP includes several interim deliverables and requirements. Learn more about ILP.

Relicensing documents

Publicly available documents related to the relicensing will be available on FERC's eLibrary under docket "P-137." Key relicensing documents are linked below.

Notice of intent - coming soon
Pre-application document - coming soon

Contact us

For further information, please contact PG&E Senior Project Manager, Susan Kester at Susan.Kester@pge.com.

Mokelumne River Hydroelectric Project

Overview