This document provides information about three power generators (C1, C2, C3) including their minimum and maximum outputs and fuel costs. It then shows the calculations to determine the optimal dispatch of the three generators to meet a total load of 500 MW in the cheapest way, by minimizing total fuel costs. The manual calculations determine the optimal dispatch is 229.25 MW for generator C1, 73.28 MW for generator C2, and 197.11 MW for generator C3. A program is then used to verify the same optimal dispatch.