Renewable energy Calculators

Hydroelectric Power Calculator Linear in both flow and head, and 90 percent efficient because it dodges the Carnot limit. Solar Panel Calculator Peak sun hours folds latitude, season and cloud into one number, which is why the rest is simple. Solar Panel Wattage Calculator A panel rated 400 W gives that at 25 °C in a lab; on a summer roof it loses a tenth to heat alone. Wind Turbine Calculator Power goes as the cube of wind speed, so 20 percent more wind is 73 percent more energy. Wind Turbine Profit Calculator The capacity factor is what turns a nameplate rating into money, and it is rarely above 40 percent.