Solar Energy

Solar energy calculators for system sizing, panel angle, payback period, net metering, battery sizing, shading analysis, and string configuration.

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Compare savings from community solar subscription vs rooftop solar.

Determine the right inverter capacity for your solar array.

Calculate monthly credits and savings from solar excess production.

Calculate battery storage capacity needed for solar backup.

Estimate solar panel output decline over a 25-year lifespan.

Find the optimal tilt angle for solar panels based on your latitude and season.

Calculate how many years it takes to recoup your solar investment.

Estimate production losses from shading on your solar array.

Calculate panels per string from voltage limits and inverter specs.

Calculate KW system size from electricity usage and sun hours.