The California Solar Initiative (CSI) is part of the Go Solar California campaign, an unprecedented $3.3 billion ratepayer-funded effort that aims to install 3,000 MW of new grid-connected solar over the next decade and to transform the market for solar energy.

The CSI Program provides incentive payments either in one lump sum for smaller systems or over the course of five years for larger systems. Smaller systems typically receive an upfront, capacity-based incentive, called the Expected Performance-Based Buydown (EPBB). Larger systems receive incentives based on their actual performance over the course of five years, called the Performance Based Incentive (PBI).

The CSI Program is overseen by the California Public Utilities Commission and provides incentives for solar system installations to customers of the state's three investor-owned utilities (IOUs): Pacific Gas & Electric, San Diego Gas & Electric (SDG&E) and Southern California Edison. PG&E and SCE serve as Program Administrators in their respective utility territories. The California Center for Sustainable Energy (CCSE) serves as Program Administrator in SDG&E territory.

For more information, please visit GoSolarCalifornia.ca.gov.

California Solar Statistics is a website that provides information on the California Solar Initiative. It provides both detailed program data and easily accessible high-level information. It consists of three main parts:

1. Figures and Tables

2. Program Data Search

3. Archived Data