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Inverter Replacement Planner
Replacement year and annualized cost by inverter type.
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Solar calculators
Sizing, production, cost, payback, batteries and incentives, each with the formula shown.
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Soiling and Cleaning Payback Calculator
Yearly loss from soiling vs cleaning cost.
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EV Miles from Solar
Extra kW and panels for EV miles.
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Shading Loss Estimator
kWh and dollar loss from shade.
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Solar Tilt and Azimuth Optimizer
Year, winter and summer tilt from latitude.
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Solar Cost
Gross and net cost after ITC.
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Off-Grid Kit Sizer
PV, battery and controller.
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Solar String Sizing Calculator
Temperature-corrected string voltage against the inverter DC maximum and MPPT window.
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Roof Max Panels
Max panels after setbacks.
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Panel Area and Weight
Footprint, weight and roof load.
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