How Much Can Solar Save in St. Peter?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$119
Current Bill/mo
$137
Est. Lease + Battery
6.1 yrs
Payback Period
$40,132
25-Year Savings
What You're Paying Now
Without solar, here's what Ameren Illinois electricity will cost you over time at 6% annual rate increases.
Monthly Bill
$119
Annual Cost
$1,428
25-Year Cost (No Solar)
$78,347
Your Solar Investment
5.5 kW System
$15,950
$8,795
After All IL Incentives
DG Rebate ($300/kW)-$1,650
Illinois Shines RECs (lump sum, ~18 mo)-$5,505
With vs Without Solar in St. Peter
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $119/mo | $97/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$7/mo |
| 5-Year Cost | $7,711 | $5,820 |
| 25-Year Cost | $78,347 | $38,215 |
| Rate Control | None — utility sets rates | Fixed at $0.10/kWh (avg.) for 15 years |
| Home Value Impact | None | +$15,000–$25,000 (tax-exempt) |
Your Solar Savings Over Time
Estimated 25-Year Total Savings
$40,132
Without Solar
With Solar
Year 1Payback Year
$1,428
$1,338
Year 5
$8,050
$1,375
Year 10
$18,822
$8,853
Year 15
$33,238
$17,201
Year 20
$52,530
$26,807
Year 25
$78,347
$38,215
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,428 | $1,338 | $90 |
| Year 2 | $2,942 | -$2,811 | $5,753 |
| Year 3 | $4,546 | -$1,437 | $5,983 |
| Year 4 | $6,247 | -$42 | $6,289 |
| Year 5 | $8,050 | $1,375 | $6,675 |
| Year 6 | $9,961 | $2,815 | $7,146 |
| Year 7 | $11,986 | $4,281 | $7,705 |
| Year 8 | $14,134 | $5,774 | $8,359 |
| Year 9 | $16,410 | $7,297 | $9,112 |
| Year 10 | $18,822 | $8,853 | $9,970 |
| Year 11 | $21,380 | $10,442 | $10,937 |
| Year 12 | $24,090 | $12,069 | $12,021 |
| Year 13 | $26,964 | $13,735 | $13,228 |
| Year 14 | $30,010 | $15,445 | $14,564 |
| Year 15 | $33,238 | $17,201 | $16,037 |
| Year 16 | $36,660 | $19,007 | $17,654 |
| Year 17 | $40,288 | $20,866 | $19,422 |
| Year 18 | $44,133 | $22,783 | $21,350 |
| Year 19 | $48,209 | $24,762 | $23,448 |
| Year 20 | $52,530 | $26,807 | $25,723 |
| Year 21 | $57,110 | $28,923 | $28,186 |
| Year 22 | $61,964 | $31,117 | $30,848 |
| Year 23 | $67,110 | $33,392 | $33,718 |
| Year 24 | $72,565 | $35,756 | $36,809 |
| Year 25 | $78,347 | $38,215 | $40,132 |
Start Saving in St. Peter
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Ameren Illinois rates projected to rise again next year. Lock in savings now.