PumpeD-hydro Energy Storage
Pumped-storage hydroelectricity generates electricity by pumping water from a low to a high reservoir and releasing the water from the higher reservoir through a hydroelectric turbine when electricity is needed.
Compressed air energy storage
Compressed air energy storage uses excess energy to compress air and store it in a pressurized chamber. When demand is high, the compressed air is heated with a small amount of natural gas and released through an expansion turbine to generate electricity.
Example Energy Storage Project:
Eagle Mountain Pumped Energy sTorage
- Generates Thousands of New, Green Jobs. The hydro facility at Eagle Mountain is a $2.5 billion project that is projected to pump more than $300 hundred million into the state’s economy and more than $25 million into Riverside County each year during the 4-year construction of the project. The project is estimated to support 4,310 jobs each year during construction, creating nearly 600 jobs directly and more than 3,700 jobs indirectly in some of the most disadvantaged areas of California.
The proposed hydroelectric project at Eagle Mountain turns a remote brownfield site into a source of green energy while facilitating the transfer of more than 20,000 acres back to the Joshua Tree National Park. It will create thousands of jobs, add millions of dollars into the local economy, and comply with the most stringent environmental monitoring and improvement efforts.
- Reduces Greenhouse Gases by Storing Renewable Energy. As California leads the nations in battling climate change, one key challenge is finding a way to store renewable energy, particularly during peak periods when solar, wind and other renewable sources are unavailable. Eagle Mountain solves that problem by storing and providing enough renewable energy to light nearly one million homes when needed. This storage ability is crucial to moving from fossil fuels to renewable energy. The ability to store large amounts of renewable energy for extended periods of time plays a central role in assuring California meets its goal of 50% renewable energy by 2030. This is one important reason Governor Jerry Brown and all local legislators support the project.
- Protects Wildlife and the Environment. The Eagle Mountain facility has been scrutinized and analyzed by numerous government agencies, resulting in the project undertaking dozens of environmental improvement measures ranging from the creation of a desert tortoise habitat to monitoring of the local aquifer water table for the next 50 years.
- Turns a Remote Brownfield Site Green. The Eagle Mountain hydro project is located more than 50 miles from the nearest major city, Blythe, and more than 60 miles from Palm Springs and the Desert Cities. Its location is nearly 20 miles into the desert off the only major highway nearby. It is a brownfield site that would have been forgotten and left to decay, but will can now be transformed into a green source of energy that can provide 1300 megawatts of clean power. That is enough stored renewable energy to power a million homes!