The Clean Energy Revolving Fund (CERF) provides affordable, unsecured loans to Cambodian farmers, to purchase clean energy technology. It has thus far disbursed 15 loans, enabling farmers from all over Cambodia to purchase solar irrigation and solar energy installations. Despite the lack of collateral, 90% of the loan repayments are made in full and on schedule. This brochure explains how the fund works, why it has been successful and what is next, and also shows its impact on local markets, the environment and the farmers' lives.