AP ENVIRONMENTAL SCI
EROI Energy Return
Comparator for Energy Return on Investment (EROI), mapping the high yields of early oil and hydro against the modern low-yield reality of tar sands and corn ethanol.
AP ENVIRONMENTAL SCI
Turbine Systems: Hydro & Geothermal
Comparison of the ubiquitous turbine-generator electrical system, modeled for Gravity/Kinetic generation (Hydroelectric dam) and Heat/Steam generation (Geothermal mapping).