How Much Can Solar Save in Granite City?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$120
Current Bill/mo
$134
Est. Lease + Battery
6.3 yrs
Payback Period
$37,437
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
$120
Annual Cost
$1,440
25-Year Cost (No Solar)
$79,005
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 Granite City
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $120/mo | $97/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$3/mo |
| 5-Year Cost | $7,776 | $5,820 |
| 25-Year Cost | $79,005 | $41,568 |
| 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
$37,437
Without Solar
With Solar
Year 1Payback Year
$1,440
$1,403
Year 5
$8,117
$1,737
Year 10
$18,980
$9,691
Year 15
$33,517
$18,663
Year 20
$52,971
$29,087
Year 25
$79,005
$41,568
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,440 | $1,403 | $37 |
| Year 2 | $2,966 | -$2,678 | $5,644 |
| Year 3 | $4,584 | -$1,231 | $5,815 |
| Year 4 | $6,299 | $240 | $6,059 |
| Year 5 | $8,117 | $1,737 | $6,380 |
| Year 6 | $10,044 | $3,263 | $6,782 |
| Year 7 | $12,087 | $4,819 | $7,268 |
| Year 8 | $14,252 | $6,407 | $7,845 |
| Year 9 | $16,547 | $8,030 | $8,517 |
| Year 10 | $18,980 | $9,691 | $9,289 |
| Year 11 | $21,559 | $11,392 | $10,167 |
| Year 12 | $24,293 | $13,137 | $11,156 |
| Year 13 | $27,190 | $14,928 | $12,263 |
| Year 14 | $30,262 | $16,769 | $13,493 |
| Year 15 | $33,517 | $18,663 | $14,854 |
| Year 16 | $36,968 | $20,615 | $16,353 |
| Year 17 | $40,627 | $22,629 | $17,997 |
| Year 18 | $44,504 | $24,709 | $19,795 |
| Year 19 | $48,614 | $26,860 | $21,754 |
| Year 20 | $52,971 | $29,087 | $23,884 |
| Year 21 | $57,590 | $31,396 | $26,194 |
| Year 22 | $62,485 | $33,792 | $28,693 |
| Year 23 | $67,674 | $36,281 | $31,393 |
| Year 24 | $73,174 | $38,871 | $34,303 |
| Year 25 | $79,005 | $41,568 | $37,437 |
Start Saving in Granite City
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.