Solar & Renewable Energy Calculators
Size solar battery storage, panel angles, and full systems for homes and tiny houses. Estimate payback, ROI, charging efficiency, and degradation.
New here? The guides answer the questions behind these calculators with worked numbers first, then link the right tool.
Deciding what to buy before you size it? Compare LiFePO4 vs lead-acid batteries · pure vs modified sine inverters — each states where each option wins, then links the sizing calculator.
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Solar Panel Degradation Audit Calculator
Analyze historical solar production to quantify panel degradation and warranty compliance.
Tiny House Solar System Sizing
Design a complete off-grid solar system for your tiny house. Size the array, battery bank, inverter, and charge controller from your daily usage.
Solar Battery Storage Sizing
Calculate the optimal battery bank size for your solar energy system based on your daily energy needs, backup requirements, and equipment specifications.
Solar Panel Payback & ROI
Estimate payback period and return on investment for grid-tied solar installations.
Solar Panel Angle
Determine optimal solar panel tilt angle based on latitude, season and climate.
Solar Charging Efficiency
Estimate charging time for phones, laptops, and power banks using portable solar panels based on sunlight conditions and panel setup.
Solar Panel Cable
Size and optimize DC wiring, voltage drop, and conductor sizing for residential and commercial solar panel installations.