Financial incentives and regulatory policies are important components of a strong market for renewable energy and energy efficiency. However, the availability of incentives and policies that encourage renewables and energy efficiency varies tremendously across U.S. states and utilities. DSIRE – the Database of State Incentives for Renewables & Efficiency – serves as the nation’s most comprehensive source of information on financial incentives and policies that promote renewables and energy efficiency at the federal, state, local and utility levels. This public resource, which includes summaries of more than 2,600 incentives and policies, is used by around 180,000 different people each month. Established in 1995, DSIRE is funded by the U.S. Department of Energy.