This document presents a decision matrix for evaluating potential energy sources for a client project based on speed, reusability, complexity, portability, availability, and total score. Electricity received the highest total score of 21, followed closely by concave mirrors at 19.5. Solar received a score of 17, while friction received the lowest score of 14. The matrix uses a scale of 1 to 5 to rate each potential energy source according to the listed criteria, with 5 being the best rating.