Climate-related development finance is increasing, with more money going towards mitigation than adaptation. Development organizations are increasingly engaging the private sector in climate finance. An example is given of a green credit line program between SIDBI and JICA that provides credit lines, equity, and sub-loans to private end-borrowers for energy saving projects. Lessons learned include focusing on effectiveness beyond just mobilizing private funds, adapting to local conditions, creating bankable projects from pilots, and supporting enabling environments, including for adaptation.