Solar Savings Calculator

Estimate annual solar generation from system size, local peak sun hours, and a performance factor. Compare its value at your electricity rate with installed cost after incentives; actual utility credits, financing, and production vary. Calculate it clearly with Figur.

How the solar savings calculator works

Estimate annual solar generation from system size, local peak sun hours, and a performance factor. Compare its value at your electricity rate with installed cost after incentives; actual utility credits, financing, and production vary.

Method and assumptions

Figur applies straightforward arithmetic to the values you enter. The calculation runs locally in your browser and is not stored.

  • The result depends on accurate inputs and units.
  • External factors, fees, taxes, or rules not requested by the calculator are not included.
  • Use the result as a planning estimate and verify any high-stakes decision.

Sources and references

No external data source is required: this calculator uses standard arithmetic and the values you enter.

Worked example

A 6-kW system, 4.5 sun hours, 80% performance, $0.16/kWh power, $18,000 installed cost, and 30% incentives

Produces about 7,884 kWh yearly and saves $1,261.44 per year.

Frequently asked questions

What performance factor should I use?

About 75% to 85% is a practical planning range for inverter, temperature, soiling, and other system losses. Shading or a poor roof orientation can lower production further.

Does payback include financing or rate changes?

No. This is a simple cash payback using today’s rate and stated incentives. Get local quotes and review net-metering rules, tax eligibility, degradation, and financing terms.

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