Solar loan calculator
See your monthly payment, total interest and how payments compare with bill savings, including the balance you'd owe if you sell.
Monthly payment
$173
About $40 a month more than your bill savings in year 1.
- Amount financed
- $26,250incl. $5,250 fee
- Total interest
- $15,292
- Total of payments
- $41,542
Show as a table
| Year | Net savings | Loan balance (owed if you sell) |
|---|---|---|
| 0 | $0 | −$26,250 |
| 1 | −$477 | −$25,465 |
| 2 | −$914 | −$24,640 |
| 3 | −$1,311 | −$23,773 |
| 4 | −$1,666 | −$22,861 |
| 5 | −$1,978 | −$21,903 |
| 6 | −$2,246 | −$20,896 |
| 7 | −$2,469 | −$19,838 |
| 8 | −$2,647 | −$18,725 |
| 9 | −$2,777 | −$17,556 |
| 10 | −$2,858 | −$16,327 |
| 11 | −$2,890 | −$15,035 |
| 12 | −$2,871 | −$13,678 |
| 13 | −$2,800 | −$12,251 |
| 14 | −$2,676 | −$10,751 |
| 15 | −$2,497 | −$9,175 |
| 16 | −$2,262 | −$7,518 |
| 17 | −$1,969 | −$5,776 |
| 18 | −$1,618 | −$3,946 |
| 19 | −$1,206 | −$2,022 |
| 20 | −$733 | $0 |
| 21 | $1,882 | $0 |
| 22 | $4,561 | $0 |
| 23 | $7,306 | $0 |
| 24 | $10,120 | $0 |
| 25 | $13,004 | $0 |
Net savings: $13,004 after 25 years. Loan balance (owed if you sell): $0 after 25 years
The balance is shown below zero because you must pay it off at closing if you sell before the loan ends.
What to compare
Compare the loan payment with your first-year bill savings, but remember that savings change with rates and production while the payment is fixed. If you might sell before the loan ends, the remaining balance must usually be paid at closing.
Questions
What is a good solar loan rate?
Compare against home equity and credit union rates (HELOCs averaged about 7.3% in October 2026). A much lower solar loan rate usually comes with a dealer fee.