How Much Can Solar Save in Chapin?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$117
Current Bill/mo
$133
Est. Lease + Battery
6.9 yrs
Payback Period
$34,130
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
$117
Annual Cost
$1,404
25-Year Cost (No Solar)
$77,030
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 Chapin
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $117/mo | $105/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-8/mo |
| 5-Year Cost | $7,582 | $6,300 |
| 25-Year Cost | $77,030 | $42,900 |
| 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
$34,130
Without Solar
With Solar
Year 1
$1,404
$1,496
Year 2Payback Year
$2,892
-$2,994
Year 5
$7,914
$1,690
Year 10
$18,506
$10,066
Year 15
$32,679
$19,420
Year 20
$51,647
$30,170
Year 25
$77,030
$42,899
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,404 | $1,496 | -$92 |
| Year 2Payback | $2,892 | -$2,994 | $5,886 |
| Year 3 | $4,470 | -$1,457 | $5,926 |
| Year 4 | $6,142 | $104 | $6,038 |
| Year 5 | $7,914 | $1,690 | $6,225 |
| Year 6 | $9,793 | $3,302 | $6,491 |
| Year 7 | $11,785 | $4,944 | $6,841 |
| Year 8 | $13,896 | $6,617 | $7,279 |
| Year 9 | $16,134 | $8,323 | $7,811 |
| Year 10 | $18,506 | $10,066 | $8,440 |
| Year 11 | $21,020 | $11,847 | $9,173 |
| Year 12 | $23,685 | $13,670 | $10,015 |
| Year 13 | $26,511 | $15,538 | $10,973 |
| Year 14 | $29,505 | $17,453 | $12,052 |
| Year 15 | $32,679 | $19,420 | $13,259 |
| Year 16 | $36,044 | $21,443 | $14,602 |
| Year 17 | $39,611 | $23,524 | $16,087 |
| Year 18 | $43,392 | $25,670 | $17,722 |
| Year 19 | $47,399 | $27,883 | $19,516 |
| Year 20 | $51,647 | $30,170 | $21,477 |
| Year 21 | $56,150 | $32,535 | $23,615 |
| Year 22 | $60,923 | $34,984 | $25,938 |
| Year 23 | $65,982 | $37,524 | $28,458 |
| Year 24 | $71,345 | $40,160 | $31,185 |
| Year 25 | $77,030 | $42,899 | $34,130 |
Start Saving in Chapin
Get a free, personalized solar analysis based on your actual Ameren Illinois bill and roof. Lease or own — we'll find the best option.
✓ $0 down lease available — save from day 1 with no upfront cost
Ameren Illinois rates projected to rise again next year. Lock in savings now.