Community Solar Calculator
Compare savings from community solar subscription vs rooftop solar.
Inputs
$
kW
$/kWh
%
$
years
Results
Monthly Savings
$5.85
Annual Savings
$70.00
≈ 5 movie tickets
Total Contract Savings$1,404.00
Monthly Bill Credit$6.50
Community vs Rooftop5%
How to Use This Calculator
- Enter your average monthly electricity usage in kWh.
- Set the community solar subscription rate in $/kWh.
- Input your current utility rate in $/kWh.
- Review the annual savings and the difference between your bill and the subscription cost.
- Community solar is ideal if you rent, have a shaded roof, or cannot afford rooftop installation.
How the result changes with Your Allocation
| Your Allocation | Monthly Savings | Annual Savings |
|---|---|---|
| 5.9 | $6.90 | $83.00 |
| 18 | $21.06 | $253.00 |
| 33 | $38.61 | $463.00 |
| 45 | $52.65 | $632.00 |
What each input means
- Current Monthly Bill
- Your current average monthly electricity bill.
- Your Allocation
- Your share of the community solar farm in kilowatts.
- Community Solar Rate
- Rate per kWh from the community solar provider.
- Bill Credit Discount
- Discount on bill credits compared to retail rate.
- Monthly Subscription Fee
- Monthly fee charged by the community solar provider.
- Contract Length
- Length of your community solar subscription contract.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersCurrent Monthly Bill = 150, Your Allocation = 5, Community Solar Rate = 0.12, Bill Credit Discount = 10 = 6 input(s) provided
- Calculate Monthly SavingsMonthly Savings5.85 = $5.85
- Calculate Annual SavingsAnnual Savings70 = $70
- Calculate Total Contract SavingsTotal Contract Savings1404 = $1,404
- Calculate Monthly Bill CreditMonthly Bill Credit6.5 = $6.5
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