Nevertheless, to which extent access to modern energies truly impacts poverty reduction and entrepreneurial success remains unclear. Especially in rural areas the evaluation of the effective benefits of energy access is intricate. The productive uses of energy could certainly help to reach these goals, as many examples attest. However, systematic evidence of these outcomes and impacts is still limited and questions remain: Which complementary services are necessary to establish productive uses? Do productive uses of energy contribute to social and economic development? Why do many energy projects fall short to establish productive activities? Is there a tipping point for the amount of energy that will have the greatest impact? Which “productive” activities should be supported, and who will benefit?