The document summarizes a study quantifying the tradeoffs of water usage at Yali Reservoir in Vietnam. It finds that meeting 100% of the water demand for agriculture, domestic, and aquaculture uses within a 2km buffer of the reservoir would: 1) Reduce annual reservoir storage capacity and power production by 0.7% and 1% respectively. 2) More significantly reduce dry season storage capacity by 3.6% and power production by 3.5%. 3) Result in an estimated annual economic cost of $462,000 from reduced power generation, though this could bring greater benefits to the surrounding communities through reliable access to water.