Results based financing (RBF) approachesare becoming an increasingly popular way to supportdevelopment objectives and wider public policy goals. Thefundamental idea of RBF approaches is that payments thatwould otherwise be made automatically are made contingent ondelivery of (a) pre agreed result, with achievement of theresult being subject to independent verification. RBFapproaches have been pioneered in the health sector butthere has been increasing interest in whether and how theycould be used within the energy sector, and especially onhow they may promote private sector investment in low carbonenergy sector opportunities (ESMAP 2012). The work has beencommissioned by the Energy Sector Management AssistanceProgram (ESMAP), as part of a broader initiative looking atthe potential for greater use of results-based approaches(RBAs) in the energy sector in developing countries Thisreport identifies the circumstances when Results BasedFinancing (RBF) approaches might be an appropriate energysector intervention in developing countries, especially topromote energy access and energy efficiency. It wascommissioned by the Energy Sector Management AssistanceProgram (ESMAP) as part of a broader initiative looking atthe potential for greater use of results-based approaches inthe energy sector in developing countries. The fundamentalidea of RBF approaches is that payments that would otherwisebe made automatically are made contingent on delivery of apre agreed (set of) result(s), with achievement of theresult(s) being subject to independent verification. Thereport is focused on individuals and organizations who areconsidering whether an RBF approach would be a sensible wayto deliver some specific goods or services to help meet adefined public policy goal. These individuals ororganizations might then go on to implement an RBF scheme inthe language of the report; they would be the RBFscheme's focus on the energy sector in developingcountries principal.