How Much Can Solar Save in Cahokia Heights?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$108
Current Bill/mo
$132
Est. Lease + Battery
6.6 yrs
Payback Period
$34,840
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
$108
Annual Cost
$1,296
25-Year Cost (No Solar)
$71,104
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 Cahokia Heights
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $108/mo | $97/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-1/mo |
| 5-Year Cost | $6,998 | $5,820 |
| 25-Year Cost | $71,104 | $36,264 |
| 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
$34,840
Without Solar
With Solar
Year 1
$1,296
$1,310
Year 2Payback Year
$2,670
-$2,870
Year 5
$7,306
$1,210
Year 10
$17,082
$8,448
Year 15
$30,166
$16,451
Year 20
$47,674
$25,562
Year 25
$71,104
$36,264
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,296 | $1,310 | -$14 |
| Year 2Payback | $2,670 | -$2,870 | $5,539 |
| Year 3 | $4,126 | -$1,528 | $5,654 |
| Year 4 | $5,670 | -$169 | $5,838 |
| Year 5 | $7,306 | $1,210 | $6,096 |
| Year 6 | $9,040 | $2,609 | $6,431 |
| Year 7 | $10,878 | $4,031 | $6,848 |
| Year 8 | $12,827 | $5,477 | $7,350 |
| Year 9 | $14,893 | $6,948 | $7,944 |
| Year 10 | $17,082 | $8,448 | $8,634 |
| Year 11 | $19,403 | $9,978 | $9,425 |
| Year 12 | $21,863 | $11,541 | $10,322 |
| Year 13 | $24,471 | $13,139 | $11,332 |
| Year 14 | $27,236 | $14,775 | $12,461 |
| Year 15 | $30,166 | $16,451 | $13,715 |
| Year 16 | $33,272 | $18,171 | $15,100 |
| Year 17 | $36,564 | $19,939 | $16,625 |
| Year 18 | $40,054 | $21,757 | $18,296 |
| Year 19 | $43,753 | $23,630 | $20,123 |
| Year 20 | $47,674 | $25,562 | $22,113 |
| Year 21 | $51,831 | $27,556 | $24,274 |
| Year 22 | $56,236 | $29,618 | $26,618 |
| Year 23 | $60,907 | $31,754 | $29,153 |
| Year 24 | $65,857 | $33,967 | $31,890 |
| Year 25 | $71,104 | $36,264 | $34,840 |
Start Saving in Cahokia Heights
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