How Much Can Solar Save in Carbondale?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$128
Current Bill/mo
$142
Est. Lease + Battery
6.2 yrs
Payback Period
$42,146
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
$128
Annual Cost
$1,536
25-Year Cost (No Solar)
$84,272
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 Carbondale
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $128/mo | $105/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$5/mo |
| 5-Year Cost | $8,294 | $6,300 |
| 25-Year Cost | $84,272 | $42,126 |
| 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
$42,146
Without Solar
With Solar
Year 1Payback Year
$1,536
$1,470
Year 5
$8,659
$1,556
Year 10
$20,246
$9,782
Year 15
$35,752
$18,974
Year 20
$56,503
$29,556
Year 25
$84,272
$42,126
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,536 | $1,470 | $66 |
| Year 2 | $3,164 | -$3,045 | $6,209 |
| Year 3 | $4,890 | -$1,535 | $6,425 |
| Year 4 | $6,719 | -$2 | $6,721 |
| Year 5 | $8,659 | $1,556 | $7,103 |
| Year 6 | $10,714 | $3,140 | $7,574 |
| Year 7 | $12,893 | $4,752 | $8,141 |
| Year 8 | $15,203 | $6,395 | $8,807 |
| Year 9 | $17,651 | $8,071 | $9,580 |
| Year 10 | $20,246 | $9,782 | $10,463 |
| Year 11 | $22,996 | $11,532 | $11,464 |
| Year 12 | $25,912 | $13,323 | $12,589 |
| Year 13 | $29,003 | $15,158 | $13,845 |
| Year 14 | $32,279 | $17,041 | $15,239 |
| Year 15 | $35,752 | $18,974 | $16,777 |
| Year 16 | $39,433 | $20,963 | $18,470 |
| Year 17 | $43,335 | $23,011 | $20,324 |
| Year 18 | $47,471 | $25,123 | $22,348 |
| Year 19 | $51,855 | $27,303 | $24,552 |
| Year 20 | $56,503 | $29,556 | $26,946 |
| Year 21 | $61,429 | $31,888 | $29,541 |
| Year 22 | $66,651 | $34,305 | $32,346 |
| Year 23 | $72,186 | $36,812 | $35,374 |
| Year 24 | $78,053 | $39,417 | $38,636 |
| Year 25 | $84,272 | $42,126 | $42,146 |
Start Saving in Carbondale
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