Assess four energy sources—solar, wind, hydro, and natural gas—for powering a small town. Students will compare estimated costs (installation and maintenance), reliability (variability, storage/backups), environmental impacts (emissions, habitat effects), and community feasibility (land use, permitting, social acceptance). Using provided data and simple calculations, recommend an optimal energy mix that balances cost, reliability, and environmental goals, and justify the recommendation with evidence and trade-offs.