Free, privacy-focused off-grid solar calculator. Accurately size your solar panel array, battery bank capacity, and inverter. Perfect for homes, cabins, RVs, and vans. No signup required.
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How many solar panels are needed to run a house off-grid? You''ll need 15–30 solar panels to run a house off-grid, depending on your energy use, sun hours, and panel wattage. Most
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This off-grid sizing calculator simplifies a complex design process into an understandable workflow. While results provide a strong engineering baseline, always verify with real-world site data, local
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Detailed guide to the many specifications to consider when designing an off-grid solar system or complete hybrid energy storage system. Plus, a guide to the best grid-interactive and off
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The calculator below considers your location and panel orientation, and uses historical weather data from The National Renewable Energy Laboratory to determine Peak Sun Hours
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Calculate solar panels, batteries, and inverter size for your off-grid solar system.
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System sizing depends on three critical factors: daily energy consumption (typically 10-25 kWh for off-grid homes), peak power demand (simultaneous appliance usage), and available sun hours in the
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Several factors impact how many solar panels you need: Peak Sun Hours (PSH): This refers to the average number of hours per day your solar panels receive direct, effective sunlight.
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Each type has its advantages and disadvantages, and the choice depends on various factors such as cost, space available, and desired efficiency. The following table provides a
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Designing an effective off-grid solar system requires careful attention to energy needs, component sizing, and technical requirements. Start with an accurate load assessment, size
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