How Much Can Solar Save in Mendon?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$121
Current Bill/mo
$135
Est. Lease + Battery
6.7 yrs
Payback Period
$36,216
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
$121
Annual Cost
$1,452
25-Year Cost (No Solar)
$79,663
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 Mendon
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $121/mo | $105/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-4/mo |
| 5-Year Cost | $7,841 | $6,300 |
| 25-Year Cost | $79,663 | $43,447 |
| 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
$36,216
Without Solar
With Solar
Year 1
$1,452
$1,503
Year 2Payback Year
$2,991
-$2,979
Year 5
$8,185
$1,732
Year 10
$19,139
$10,172
Year 15
$33,797
$19,622
Year 20
$53,413
$30,513
Year 25
$79,663
$43,447
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,452 | $1,503 | -$51 |
| Year 2Payback | $2,991 | -$2,979 | $5,970 |
| Year 3 | $4,623 | -$1,433 | $6,056 |
| Year 4 | $6,352 | $136 | $6,216 |
| Year 5 | $8,185 | $1,732 | $6,453 |
| Year 6 | $10,128 | $3,355 | $6,773 |
| Year 7 | $12,188 | $5,009 | $7,179 |
| Year 8 | $14,371 | $6,694 | $7,677 |
| Year 9 | $16,685 | $8,415 | $8,271 |
| Year 10 | $19,139 | $10,172 | $8,966 |
| Year 11 | $21,739 | $11,970 | $9,769 |
| Year 12 | $24,495 | $13,810 | $10,685 |
| Year 13 | $27,417 | $15,697 | $11,720 |
| Year 14 | $30,514 | $17,633 | $12,881 |
| Year 15 | $33,797 | $19,622 | $14,175 |
| Year 16 | $37,277 | $21,669 | $15,608 |
| Year 17 | $40,965 | $23,776 | $17,189 |
| Year 18 | $44,875 | $25,950 | $18,925 |
| Year 19 | $49,020 | $28,193 | $20,826 |
| Year 20 | $53,413 | $30,513 | $22,900 |
| Year 21 | $58,069 | $32,913 | $25,156 |
| Year 22 | $63,006 | $35,400 | $27,605 |
| Year 23 | $68,238 | $37,981 | $30,257 |
| Year 24 | $73,784 | $40,661 | $33,124 |
| Year 25 | $79,663 | $43,447 | $36,216 |
Start Saving in Mendon
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