How Much Can Solar Save in Alton?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$119
Current Bill/mo
$134
Est. Lease + Battery
6.9 yrs
Payback Period
$34,629
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
6 kW System
$17,400
$9,595
After All IL Incentives
DG Rebate ($300/kW)-$1,800
Illinois Shines RECs (lump sum, ~18 mo)-$6,005
With vs Without Solar in Alton
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $119/mo | $105/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-7/mo |
| 5-Year Cost | $7,711 | $6,300 |
| 25-Year Cost | $78,347 | $43,718 |
| 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
$34,629
Without Solar
With Solar
Year 1
$1,428
$1,510
Year 2Payback Year
$2,942
-$2,965
Year 5
$8,050
$1,770
Year 10
$18,822
$10,256
Year 15
$33,238
$19,760
Year 20
$52,530
$30,712
Year 25
$78,347
$43,717
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,428 | $1,510 | -$82 |
| Year 2Payback | $2,942 | -$2,965 | $5,906 |
| Year 3 | $4,546 | -$1,411 | $5,957 |
| Year 4 | $6,247 | $166 | $6,081 |
| Year 5 | $8,050 | $1,770 | $6,279 |
| Year 6 | $9,961 | $3,402 | $6,558 |
| Year 7 | $11,986 | $5,065 | $6,922 |
| Year 8 | $14,134 | $6,759 | $7,374 |
| Year 9 | $16,410 | $8,489 | $7,921 |
| Year 10 | $18,822 | $10,256 | $8,566 |
| Year 11 | $21,380 | $12,064 | $9,316 |
| Year 12 | $24,090 | $13,915 | $10,176 |
| Year 13 | $26,964 | $15,812 | $11,152 |
| Year 14 | $30,010 | $17,759 | $12,250 |
| Year 15 | $33,238 | $19,760 | $13,478 |
| Year 16 | $36,660 | $21,818 | $14,842 |
| Year 17 | $40,288 | $23,938 | $16,350 |
| Year 18 | $44,133 | $26,123 | $18,010 |
| Year 19 | $48,209 | $28,380 | $19,829 |
| Year 20 | $52,530 | $30,712 | $21,818 |
| Year 21 | $57,110 | $33,126 | $23,984 |
| Year 22 | $61,964 | $35,627 | $26,337 |
| Year 23 | $67,110 | $38,221 | $28,889 |
| Year 24 | $72,565 | $40,916 | $31,649 |
| Year 25 | $78,347 | $43,717 | $34,629 |
Start Saving in Alton
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