How Much Can Solar Save in Westfield?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$112
Current Bill/mo
$133
Est. Lease + Battery
6.4 yrs
Payback Period
$36,728
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
$112
Annual Cost
$1,344
25-Year Cost (No Solar)
$73,738
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 Westfield
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $112/mo | $97/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$2/mo |
| 5-Year Cost | $7,258 | $5,820 |
| 25-Year Cost | $73,738 | $37,010 |
| 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
$36,728
Without Solar
With Solar
Year 1Payback Year
$1,344
$1,321
Year 5
$7,576
$1,274
Year 10
$17,715
$8,604
Year 15
$31,283
$16,740
Year 20
$49,440
$26,039
Year 25
$73,738
$37,010
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,344 | $1,321 | $23 |
| Year 2 | $2,769 | -$2,847 | $5,616 |
| Year 3 | $4,279 | -$1,492 | $5,771 |
| Year 4 | $5,879 | -$119 | $5,999 |
| Year 5 | $7,576 | $1,274 | $6,302 |
| Year 6 | $9,375 | $2,689 | $6,686 |
| Year 7 | $11,281 | $4,128 | $7,154 |
| Year 8 | $13,302 | $5,592 | $7,710 |
| Year 9 | $15,444 | $7,083 | $8,361 |
| Year 10 | $17,715 | $8,604 | $9,111 |
| Year 11 | $20,122 | $10,157 | $9,964 |
| Year 12 | $22,673 | $11,745 | $10,928 |
| Year 13 | $25,378 | $13,369 | $12,009 |
| Year 14 | $28,244 | $15,033 | $13,211 |
| Year 15 | $31,283 | $16,740 | $14,543 |
| Year 16 | $34,504 | $18,493 | $16,011 |
| Year 17 | $37,918 | $20,295 | $17,623 |
| Year 18 | $41,537 | $22,151 | $19,386 |
| Year 19 | $45,373 | $24,065 | $21,309 |
| Year 20 | $49,440 | $26,039 | $23,401 |
| Year 21 | $53,750 | $28,080 | $25,670 |
| Year 22 | $58,319 | $30,192 | $28,127 |
| Year 23 | $63,162 | $32,381 | $30,781 |
| Year 24 | $68,296 | $34,651 | $33,645 |
| Year 25 | $73,738 | $37,010 | $36,728 |
Start Saving in Westfield
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