California's electricity comes from a diverse mix of sources:
1. **Natural Gas**: Historically, natural gas has been the largest source of electricity generation in California.
2. **Renewable Energy**: California is a leader in renewable energy, with significant contributions from:
- **Solar Power**: Both utility-scale solar farms and residential solar panels contribute a substantial portion.
- **Wind Power**: Wind turbines, particularly in areas like the Tehachapi Pass and the Altamont Pass, provide a significant share.
- **Hydropower**: Large and small hydroelectric plants contribute, although their output can vary with water availability.
- **Geothermal Energy**: California has one of the largest geothermal energy markets in the U.S., with plants located mainly in the Imperial Valley and northern California.
3. **Nuclear Power**: The Diablo Canyon Nuclear Power Plant is California’s last operating nuclear facility, contributing a considerable portion of the state's electricity.
4. **Imports**: California imports a portion of its electricity from neighboring states, especially during peak demand periods or when renewable generation is low.
The state has made significant strides toward increasing its use of renewable energy and reducing reliance on fossil fuels, aiming for a more sustainable energy future.