Shiloh Wind Project, located in the Montezuma Hills of Solano County, California, is the largest re-powering project in the country. The older, existing technology was upgraded to allow for increased generation of clean energy with fewer wind turbines. Approximately 100 kilowatt turbines originally installed in 1989 have been removed and replaced through four phases. Phase one of the project began in 2005. By 2012, the fourth and final phase was completed.
This comprehensive and collaborative wind project began with Shiloh 1, which is owned and operated by Iberdrola Renewables. Shiloh 1 consists of 100 turbines, each with a generating capacity of 1.5 MW. Located on 6,800 acres in the rural community of Bird’s Landing, the site is leased from 26 local farmers and cattle continue to graze there. The electricity is purchased by Pacific Gas and Electric (75 MW), the Modesto Irrigation District (50 MW), and the City of Palo Alto (25 MW).
Benefits
- The project is estimated to offset over 380 million pounds of carbon dioxide, over 450,000 pound of nitrogen oxide, and over 250,000 pounds of sulfur dioxide for its customers.
- Construction created more than 90 seasonal jobs and 12 permanent fulltime positions.
- The project brings more than $1 million annually to the local economy.
Key Developers and Partners
- Iberdrola Renewables
- Pacific Gas and Electric
- Modesto Irrigation District
- City of Palo Alto

SEE LOCATIONS ON THE TOUR
Alta Wind Farm Powers Homes
Wind
CleanWorld Sacramento BioDigester
Anaerobic digester
Desert Sunlight Solar Farm
Solar photovoltaic
Electric Vehicles International
Electric vehicle manufacturing
Eos Energy Storage
Energy Storage
The Geysers
Geothermal
Helms Pumped Storage Facility
Hydroelectric storage
Ivanpah Solar Electric Generating System
Solar thermal
New Solar Homes Partnership
Solar Incentives
Playa Vista Elementary School
Green school
Proterra Zero-Emission Buses
Public Electric Vehicle Charging at the South Coast Air Quality Management District
Electric vehicle charging infrastructure
Santa Rita Jail
Smart grid/solar/wind/fuel cell/advanced energy storage/solar thermal
Shiloh Wind Power Plant
Wind Power
Solar Star Projects
UC Davis West Village
Zero net energy mixed use, multi-unit housing communities