How Much Can Solar Save in Chesterfield?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$115
Current Bill/mo
$134
Est. Lease + Battery
9.5 yrs
Payback Period
$22,573
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
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 Chesterfield
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $115/mo | $158/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-58/mo |
| 5-Year Cost | $7,452 | $9,480 |
| 25-Year Cost | $75,713 | $53,140 |
| 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
$22,573
Without Solar
With Solar
Year 1
$1,380
$2,079
Year 2Payback Year
$2,843
-$4,832
Year 5
$7,779
$1,576
Year 10
$18,189
$12,754
Year 15
$32,121
$24,795
Year 20
$50,764
$38,078
Year 25
$75,713
$53,140
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,380 | $2,079 | -$699 |
| Year 2Payback | $2,843 | -$4,832 | $7,675 |
| Year 3 | $4,393 | -$2,717 | $7,110 |
| Year 4 | $6,037 | -$582 | $6,619 |
| Year 5 | $7,779 | $1,576 | $6,204 |
| Year 6 | $9,626 | $3,756 | $5,870 |
| Year 7 | $11,583 | $5,963 | $5,621 |
| Year 8 | $13,659 | $8,196 | $5,462 |
| Year 9 | $15,858 | $10,459 | $5,399 |
| Year 10 | $18,189 | $12,754 | $5,436 |
| Year 11 | $20,661 | $15,082 | $5,578 |
| Year 12 | $23,281 | $17,448 | $5,832 |
| Year 13 | $26,057 | $19,853 | $6,204 |
| Year 14 | $29,001 | $22,301 | $6,700 |
| Year 15 | $32,121 | $24,795 | $7,326 |
| Year 16 | $35,428 | $27,337 | $8,091 |
| Year 17 | $38,934 | $29,933 | $9,001 |
| Year 18 | $42,650 | $32,586 | $10,064 |
| Year 19 | $46,589 | $35,299 | $11,290 |
| Year 20 | $50,764 | $38,078 | $12,686 |
| Year 21 | $55,190 | $40,928 | $14,262 |
| Year 22 | $59,881 | $43,853 | $16,028 |
| Year 23 | $64,854 | $46,860 | $17,995 |
| Year 24 | $70,125 | $49,953 | $20,172 |
| Year 25 | $75,713 | $53,140 | $22,573 |
Start Saving in Chesterfield
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