Calculate RV solar panel wattage, 12V/24V LiFePO4 battery bank amp-hours (Ah), daily appliance watt-hours, and DC-to-DC alternator charging times for vans.
Solar PV Inverter Clipping & DC/AC Ratio (ILR) Calculator
Calculate solar PV inverter clipping losses, Inverter Loading Ratio (ILR), diurnal power profiles, annual energy yield, and clipping economics.
Photovoltaic Single-Diode I-V Curve Calculator
Calculate solar cell I-V and P-V curves, Maximum Power Point (MPP), Fill Factor, series/shunt resistance impacts, and temperature effects using the 5-parameter diode model.
Off-Grid Solar Calculator – Battery Bank, Array & Inverter Sizing
Plan complete off-grid solar systems: 24h watt-hour load audit, battery bank capacity (Ah/kWh), PV solar array wattage, and generator runtime.
Microgrid Solar, Battery & Diesel Dispatch Optimizer – Free Energy Tool
Simulate 24-hour hybrid microgrid energy dispatch, solar PV generation, battery BESS SoC dynamics, diesel generator fuel consumption, LCOE, and CO2 emissions.
Levelized Cost of Hydrogen (LCOH) Electrolyzer Calculator – Free Clean Energy Tool
Calculate Levelized Cost of Hydrogen (LCOH) in $/kg H2. Analyze CAPEX, renewable electricity tariff, stack replacement, capacity factor, and Inflation Reduction Act 45V clean hydrogen tax credits.
LCOE Calculator – Levelized Cost of Energy for Solar, Wind & Storage
Calculate the Levelized Cost of Electricity ($/MWh and $/kWh) for solar PV, wind, battery, and hybrid energy systems using capital expenditures, O&M, and discount rates.
Hydroelectric Power Calculator – Head, Flow Rate & Micro-Hydro Output
Calculate micro-hydro and small hydroelectric power output in watts and kWh, hydrostatic water pressure (PSI), effective net head, and annual energy production.
Heat Pump COP Calculator – Efficiency, SEER2 & Operating Cost
Calculate heat pump Coefficient of Performance (COP), HSPF2, SEER2, heating cost per million BTU ($/MMBtu), and annual savings over gas furnaces.
Ground Source Heat Pump & Geothermal Borehole Calculator
Calculate ground source heat pump (GSHP) vertical geothermal borehole length, ground thermal load extraction and rejection, borehole thermal resistance, and long-term ground thermal balance.