How Much Can Solar Save in Assumption?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$115
Current Bill/mo
$132
Est. Lease + Battery
6.6 yrs
Payback Period
$34,941
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
$115
Annual Cost
$1,380
25-Year Cost (No Solar)
$75,713
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 Assumption
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $115/mo | $97/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-1/mo |
| 5-Year Cost | $7,452 | $5,820 |
| 25-Year Cost | $75,713 | $40,772 |
| 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
$34,941
Without Solar
With Solar
Year 1
$1,380
$1,392
Year 2Payback Year
$2,843
-$2,701
Year 5
$7,779
$1,673
Year 10
$18,189
$9,530
Year 15
$32,121
$18,362
Year 20
$50,764
$28,583
Year 25
$75,713
$40,772
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,380 | $1,392 | -$12 |
| Year 2Payback | $2,843 | -$2,701 | $5,543 |
| Year 3 | $4,393 | -$1,267 | $5,660 |
| Year 4 | $6,037 | $190 | $5,847 |
| Year 5 | $7,779 | $1,673 | $6,107 |
| Year 6 | $9,626 | $3,182 | $6,444 |
| Year 7 | $11,583 | $4,720 | $6,864 |
| Year 8 | $13,659 | $6,289 | $7,370 |
| Year 9 | $15,858 | $7,891 | $7,967 |
| Year 10 | $18,189 | $9,530 | $8,659 |
| Year 11 | $20,661 | $11,207 | $9,454 |
| Year 12 | $23,281 | $12,926 | $10,355 |
| Year 13 | $26,057 | $14,689 | $11,368 |
| Year 14 | $29,001 | $16,500 | $12,501 |
| Year 15 | $32,121 | $18,362 | $13,759 |
| Year 16 | $35,428 | $20,279 | $15,149 |
| Year 17 | $38,934 | $22,256 | $16,678 |
| Year 18 | $42,650 | $24,295 | $18,355 |
| Year 19 | $46,589 | $26,403 | $20,186 |
| Year 20 | $50,764 | $28,583 | $22,181 |
| Year 21 | $55,190 | $30,841 | $24,349 |
| Year 22 | $59,881 | $33,183 | $26,698 |
| Year 23 | $64,854 | $35,614 | $29,240 |
| Year 24 | $70,125 | $38,142 | $31,984 |
| Year 25 | $75,713 | $40,772 | $34,941 |
Start Saving in Assumption
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Ameren Illinois rates projected to rise again next year. Lock in savings now.