How Much Can Solar Save in Grafton?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$159
Current Bill/mo
$160
Est. Lease + Battery
6.2 yrs
Payback Period
$53,074
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
$159
Annual Cost
$1,908
25-Year Cost (No Solar)
$104,681
Your Solar Investment
7.5 kW System
$21,750
$11,993
After All IL Incentives
DG Rebate ($300/kW)-$2,250
Illinois Shines RECs (lump sum, ~18 mo)-$7,507
With vs Without Solar in Grafton
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $159/mo | $132/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$7/mo |
| 5-Year Cost | $10,303 | $7,920 |
| 25-Year Cost | $104,681 | $51,607 |
| 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
$53,074
Without Solar
With Solar
Year 1Payback Year
$1,908
$1,818
Year 5
$10,756
$1,834
Year 10
$25,149
$11,971
Year 15
$44,411
$23,267
Year 20
$70,187
$36,237
Year 25
$104,681
$51,607
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,908 | $1,818 | $90 |
| Year 2 | $3,930 | -$3,848 | $7,778 |
| Year 3 | $6,074 | -$1,982 | $8,056 |
| Year 4 | $8,347 | -$88 | $8,435 |
| Year 5 | $10,756 | $1,834 | $8,922 |
| Year 6 | $13,309 | $3,788 | $9,521 |
| Year 7 | $16,015 | $5,776 | $10,240 |
| Year 8 | $18,884 | $7,800 | $11,084 |
| Year 9 | $21,925 | $9,864 | $12,061 |
| Year 10 | $25,149 | $11,971 | $13,178 |
| Year 11 | $28,566 | $14,123 | $14,443 |
| Year 12 | $32,188 | $16,325 | $15,863 |
| Year 13 | $36,027 | $18,580 | $17,447 |
| Year 14 | $40,097 | $20,893 | $19,204 |
| Year 15 | $44,411 | $23,267 | $21,144 |
| Year 16 | $48,983 | $25,707 | $23,276 |
| Year 17 | $53,830 | $28,219 | $25,612 |
| Year 18 | $58,968 | $30,807 | $28,161 |
| Year 19 | $64,414 | $33,477 | $30,937 |
| Year 20 | $70,187 | $36,237 | $33,950 |
| Year 21 | $76,306 | $39,091 | $37,215 |
| Year 22 | $82,792 | $42,047 | $40,745 |
| Year 23 | $89,668 | $45,113 | $44,555 |
| Year 24 | $96,956 | $48,297 | $48,659 |
| Year 25 | $104,681 | $51,607 | $53,074 |
Start Saving in Grafton
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