Solar Battery Size Calculator
Use this solar battery sizing workflow for early backup-storage planning. It estimates capacity only and does not select a listed energy-storage system.
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Battery capacity, runtime, inverter, generator support, solar, backup, and EV charging estimate workflows.
Published Calculators
Solar Panel Size Calculator
Enter daily energy, peak sun hours, system losses, and panel wattage for a transparent preliminary PV capacity estimate.
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Solar String Calculator
Use this solar string workflow for early PV voltage screening when module voltage data, temperature coefficient, site temperature, and inverter voltage limits are known.
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Inverter Size Calculator
Use this inverter sizing workflow for early backup and off-grid planning. It does not choose a listed inverter or approve wiring, protection, transfer equipment, or interconnection.
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EV Charger Circuit Size Calculator
Use this EV charger circuit workflow for early continuous-load screening when EVSE current, voltage, multiplier, and comparison ratings are already known.
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EV Charging Time Calculator
Use this EV charging time workflow for a practical time estimate from battery size, SOC window, charger power, efficiency, and miles per kWh.
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Battery Capacity Calculator
Use this battery capacity workflow for early backup-runtime planning. It does not choose a battery chemistry, BMS, inverter, or listed energy-storage system.
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Battery Runtime Calculator
Use this battery runtime workflow for a quick backup-time estimate from entered battery and load assumptions.
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