How Much Can Solar Save in Cairo?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$102
Current Bill/mo
$126
Est. Lease + Battery
6 yrs
Payback Period
$33,801
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
$102
Annual Cost
$1,224
25-Year Cost (No Solar)
$67,154
Your Solar Investment
4.5 kW System
$13,050
$7,196
After All IL Incentives
DG Rebate ($300/kW)-$1,350
Illinois Shines RECs (lump sum, ~18 mo)-$4,504
With vs Without Solar in Cairo
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $102/mo | $79/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$8/mo |
| 5-Year Cost | $6,610 | $4,740 |
| 25-Year Cost | $67,154 | $33,353 |
| 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
$33,801
Without Solar
With Solar
Year 1Payback Year
$1,224
$1,132
Year 5
$6,900
$1,333
Year 10
$16,133
$7,732
Year 15
$28,490
$14,945
Year 20
$45,026
$23,320
Year 25
$67,154
$33,353
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,224 | $1,132 | $92 |
| Year 2 | $2,521 | -$2,224 | $4,746 |
| Year 3 | $3,897 | -$1,058 | $4,955 |
| Year 4 | $5,355 | $127 | $5,228 |
| Year 5 | $6,900 | $1,333 | $5,567 |
| Year 6 | $8,538 | $2,561 | $5,977 |
| Year 7 | $10,274 | $3,813 | $6,461 |
| Year 8 | $12,115 | $5,091 | $7,024 |
| Year 9 | $14,065 | $6,397 | $7,669 |
| Year 10 | $16,133 | $7,732 | $8,401 |
| Year 11 | $18,325 | $9,100 | $9,225 |
| Year 12 | $20,649 | $10,503 | $10,146 |
| Year 13 | $23,112 | $11,942 | $11,169 |
| Year 14 | $25,722 | $13,422 | $12,300 |
| Year 15 | $28,490 | $14,945 | $13,545 |
| Year 16 | $31,423 | $16,513 | $14,910 |
| Year 17 | $34,533 | $18,131 | $16,401 |
| Year 18 | $37,829 | $19,802 | $18,026 |
| Year 19 | $41,322 | $21,531 | $19,791 |
| Year 20 | $45,026 | $23,320 | $21,705 |
| Year 21 | $48,951 | $25,175 | $23,776 |
| Year 22 | $53,112 | $27,101 | $26,011 |
| Year 23 | $57,523 | $29,102 | $28,421 |
| Year 24 | $62,198 | $31,184 | $31,014 |
| Year 25 | $67,154 | $33,353 | $33,801 |
Start Saving in Cairo
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Ameren Illinois rates projected to rise again next year. Lock in savings now.