Assess students' ability to analyze and compare environmental impacts, operational efficiencies, and suitable applications of coal, natural gas, nuclear, wind, solar, and hydro. Scope includes lifecycle greenhouse gas emissions and air/water impacts, thermal/electrical or capacity-factor efficiencies, dispatchability (baseload vs peaking), land/siting and water constraints, scalability, and regional/grid integration trade-offs; tasks may be quantitative or qualitative.