Solar Savings Snapshot

Know your payback—before the site visit.

Enter utility usage, system size, and cost per watt to get year-1 savings, 20-year NPV, and simple payback with today’s 30 % federal tax credit.

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Monthly kWh Usage

Utility Rate ($ / kWh)

System Size (kW)

System Cost per Watt ($)

Analysis Term (yrs)

Utility Escalation Rate (%) (default 6 %)

Federal Tax Credit (%) (default 30 %)

Additional Cash Incentive ($) (rebate, state, utility)

*Assumes 1 250 kWh annual production per installed kW and 0 % system-degradation. Adjust inputs for more precise results.