How Much Can Solar Save in Mounds?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$155
Current Bill/mo
$157
Est. Lease + Battery
7.4 yrs
Payback Period
$43,896
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
$155
Annual Cost
$1,860
25-Year Cost (No Solar)
$102,048
Your Solar Investment
9 kW System
$26,100
$14,392
After All IL Incentives
DG Rebate ($300/kW)-$2,700
Illinois Shines RECs (lump sum, ~18 mo)-$9,008
With vs Without Solar in Mounds
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $155/mo | $158/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-23/mo |
| 5-Year Cost | $10,044 | $9,480 |
| 25-Year Cost | $102,048 | $58,152 |
| 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
$43,896
Without Solar
With Solar
Year 1
$1,860
$2,141
Year 2Payback Year
$3,832
-$4,704
Year 5
$10,485
$1,947
Year 10
$24,516
$13,698
Year 15
$43,293
$26,608
Year 20
$68,421
$41,186
Year 25
$102,048
$58,152
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,860 | $2,141 | -$281 |
| Year 2Payback | $3,832 | -$4,704 | $8,535 |
| Year 3 | $5,921 | -$2,515 | $8,436 |
| Year 4 | $8,137 | -$299 | $8,435 |
| Year 5 | $10,485 | $1,947 | $8,538 |
| Year 6 | $12,974 | $4,223 | $8,751 |
| Year 7 | $15,613 | $6,534 | $9,078 |
| Year 8 | $18,409 | $8,882 | $9,528 |
| Year 9 | $21,374 | $11,269 | $10,105 |
| Year 10 | $24,516 | $13,698 | $10,818 |
| Year 11 | $27,847 | $16,174 | $11,674 |
| Year 12 | $31,378 | $18,699 | $12,680 |
| Year 13 | $35,121 | $21,276 | $13,844 |
| Year 14 | $39,088 | $23,911 | $15,177 |
| Year 15 | $43,293 | $26,608 | $16,685 |
| Year 16 | $47,751 | $29,371 | $18,380 |
| Year 17 | $52,476 | $32,204 | $20,272 |
| Year 18 | $57,485 | $35,114 | $22,370 |
| Year 19 | $62,794 | $38,106 | $24,688 |
| Year 20 | $68,421 | $41,186 | $27,235 |
| Year 21 | $74,386 | $44,361 | $30,026 |
| Year 22 | $80,710 | $47,637 | $33,073 |
| Year 23 | $87,412 | $51,022 | $36,390 |
| Year 24 | $94,517 | $54,524 | $39,993 |
| Year 25 | $102,048 | $58,152 | $43,896 |
Start Saving in Mounds
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Ameren Illinois rates projected to rise again next year. Lock in savings now.