This document summarizes livelihood piloting experiences associated with hydropower development in Vietnam, Lao PDR, and Cambodia. Key outcomes include: 1) Introduction of a short term cassava variety in Vietnam that increased yields and farmer incomes; 2) Integrated rice-fish culture in Lao PDR that increased rice productivity and protein supply; and 3) Small scale aquaculture and vegetable production in Cambodia that diversified incomes and supported food security. Lessons learned indicate communities need more than one year to adopt new technologies, and partnerships with local authorities and companies can enable piloting of livelihood activities.