Calculate the true benefits of your Solar Power Purchase Agreement accurately.
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Learn moreCurrent Electricity Rate ($/kWh)
0.15
PPA Rate ($/kWh)
0.12
Estimated Annual Electricity Usage (kWh)
10,000
PPA Term (Years)
20
Estimated Annual Electricity Inflation Rate (%)
3
Annual Solar Panel Performance Degradation (%)
0.5
Use the result to compare providers, request quotes, or send the scenario to a specialist when the numbers matter.
With the default inputs, the first-year saving is about $300 from a 3¢ per kWh gap across 10,000 kWh. Over a 20-year term with 3% electricity inflation and 0.5% panel degradation, projected total savings are roughly $15,131, an average of about $757 per year.
Use this legal calculator to compare scenarios before committing money, time, or a provider conversation.
The estimate combines Current Electricity Rate ($/kWh), PPA Rate ($/kWh), Estimated Annual Electricity Usage (kWh) and returns First Year Savings, Total Savings Over PPA Term, Average Annual Savings.
If the result changes your decision, verify the current quote, rate, eligibility rule, or provider term before acting.
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This calculator produces informational estimates only. It does not constitute legal advice, does not create an attorney-client relationship, and should not be relied upon for legal decisions. Laws vary by jurisdiction. Consult a qualified attorney for your specific situation.
No external sources are listed for this calculator. The estimates are computed from the documented formulas and the assumptions entered on this page.
See our Sources & Corrections policy for how data is checked, how sources are verified, and how errors are corrected.
Reviewed by the CalculateThis.ai editorial team. Updates: check back for latest parameters. Tools are for estimation only — verify with current provider terms.