Solar Savings Calculator
Project solar savings from contributions, rates, growth, and time. Use this free solar savings calculator for fast, clear results with no signup required.
Solar Savings Calculator guide
What it is for
The Solar Savings Calculator estimates a financial outcome so you can compare scenarios before making a decision.
How it is calculated
Daily production = system capacity in kW × equivalent sun hours per day. Annual production uses 365.2425 days; multiplying by the electricity rate gives modeled annual savings.
Assumptions
Taxes, fees, inflation, rate changes, and product terms are not included unless the inputs account for them.
Example
A 5 kW system with 4 sun hours/day produces 20 kWh/day in this model. At $0.15/kWh, modeled annual savings are about $1,095.73.
Limitations
This is not financial, tax, legal, or investment advice. Confirm terms with official documents and a qualified professional.
Public source: Investor.gov: Investing