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Solar generation & value calculators
Compare solar production, on-site use, exports and simple financial value.
Choose the right calculation
Peak sun hours describe equivalent full-power sunlight, not total daylight. Self-consumption and self-sufficiency have different denominators. On-site use and exports may have different monetary values.
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Solar Output Calculator
Estimate solar energy from rated capacity, equivalent full-sun hours and a system factor.
Solar Self Consumption Calculator
Find the share of generated solar electricity used directly on site.
Solar Self Sufficiency Calculator
Find the share of total site demand met by on-site solar energy.
Solar Export Revenue Calculator
Estimate revenue from exported electricity at a manually entered flat rate.
Solar Annual Value Calculator
Combine avoided import spending and export income for a solar scenario.
Solar Panel Count Calculator
Convert a nominal solar-array power target into whole panel count.
Solar String Open Circuit Voltage Calculator
Add chosen design open-circuit voltages for a series solar string.
Solar Parallel Short Circuit Current Calculator
Sum short-circuit current assumptions for equal parallel solar strings.
Solar Battery Charging Hours Calculator
Estimate equivalent constant-power solar hours to replace a battery-energy amount.
Are self-consumption and self-sufficiency the same percentage?
No. Self-consumption divides solar used on site by solar generated; self-sufficiency divides solar supplying demand by total site demand.
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