Energy and renewables
Energy savings
Simple estimate calculator for energy savings as baseline energy minus new energy.
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Energy savings percent
Simple estimate calculator for percent energy savings relative to baseline energy.
Simple efficiency
Simple estimate calculator for efficiency as useful output divided by input.
CO2 emission from energy
Simple estimate calculator for CO2 emission from energy and a user-provided emission factor.
Hydro power from head and flow
Simple estimate calculator for hydro power from density, gravity, flow rate, head, and efficiency.
Simple LCOE
Simple estimate calculator for unit energy cost from total lifetime cost and lifetime energy.
Simple payback period
Calculates helper payback period from user-provided investment cost and annual savings.