How Much Can Solar Save in Mattoon?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$119
Current Bill/mo
$136
Est. Lease + Battery
6.2 yrs
Payback Period
$39,470
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
$119
Annual Cost
$1,428
25-Year Cost (No Solar)
$78,347
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 Mattoon
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $119/mo | $97/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$6/mo |
| 5-Year Cost | $7,711 | $5,820 |
| 25-Year Cost | $78,347 | $38,877 |
| 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
$39,470
Without Solar
With Solar
Year 1Payback Year
$1,428
$1,351
Year 5
$8,050
$1,447
Year 10
$18,822
$9,020
Year 15
$33,238
$17,492
Year 20
$52,530
$27,258
Year 25
$78,347
$38,876
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,428 | $1,351 | $77 |
| Year 2 | $2,942 | -$2,784 | $5,726 |
| Year 3 | $4,546 | -$1,396 | $5,942 |
| Year 4 | $6,247 | $14 | $6,233 |
| Year 5 | $8,050 | $1,447 | $6,603 |
| Year 6 | $9,961 | $2,904 | $7,056 |
| Year 7 | $11,986 | $4,388 | $7,598 |
| Year 8 | $14,134 | $5,900 | $8,233 |
| Year 9 | $16,410 | $7,443 | $8,966 |
| Year 10 | $18,822 | $9,020 | $9,803 |
| Year 11 | $21,380 | $10,631 | $10,748 |
| Year 12 | $24,090 | $12,281 | $11,809 |
| Year 13 | $26,964 | $13,973 | $12,991 |
| Year 14 | $30,010 | $15,708 | $14,301 |
| Year 15 | $33,238 | $17,492 | $15,747 |
| Year 16 | $36,660 | $19,326 | $17,334 |
| Year 17 | $40,288 | $21,216 | $19,072 |
| Year 18 | $44,133 | $23,165 | $20,968 |
| Year 19 | $48,209 | $25,177 | $23,032 |
| Year 20 | $52,530 | $27,258 | $25,271 |
| Year 21 | $57,110 | $29,413 | $27,697 |
| Year 22 | $61,964 | $31,646 | $30,319 |
| Year 23 | $67,110 | $33,963 | $33,147 |
| Year 24 | $72,565 | $36,371 | $36,194 |
| Year 25 | $78,347 | $38,876 | $39,470 |
Start Saving in Mattoon
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