How Much Can Solar Save in Deerfield?
Real numbers based on current ComEd rates and Illinois incentives.
$259
Current Bill/mo
$200
Est. Lease + Battery
6.7 yrs
Payback Period
$78,219
25-Year Savings
What You're Paying Now
Without solar, here's what ComEd electricity will cost you over time at 6% annual rate increases.
Monthly Bill
$259
Annual Cost
$3,108
25-Year Cost (No Solar)
$170,519
Your Solar Investment
13.5 kW System
$39,150
$20,887
After All IL Incentives
DG Rebate ($300/kW)-$4,050
Illinois Shines RECs (lump sum, ~18 mo)-$14,213
With vs Without Solar in Deerfield
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $259/mo | $237/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-16/mo |
| 5-Year Cost | $16,783 | $14,220 |
| 25-Year Cost | $170,519 | $92,300 |
| 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
$78,219
Without Solar
With Solar
Year 1
$3,108
$3,300
Year 2Payback Year
$6,402
-$7,572
Year 5
$17,520
$2,733
Year 10
$40,966
$21,092
Year 15
$72,342
$41,489
Year 20
$114,330
$64,811
Year 25
$170,519
$92,300
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $3,108 | $3,300 | -$192 |
| Year 2Payback | $6,402 | -$7,572 | $13,975 |
| Year 3 | $9,895 | -$4,186 | $14,081 |
| Year 4 | $13,596 | -$753 | $14,349 |
| Year 5 | $17,520 | $2,733 | $14,787 |
| Year 6 | $21,679 | $6,275 | $15,404 |
| Year 7 | $26,088 | $9,877 | $16,211 |
| Year 8 | $30,761 | $13,543 | $17,218 |
| Year 9 | $35,715 | $17,280 | $18,435 |
| Year 10 | $40,966 | $21,092 | $19,874 |
| Year 11 | $46,532 | $24,984 | $21,548 |
| Year 12 | $52,432 | $28,963 | $23,469 |
| Year 13 | $58,686 | $33,036 | $25,650 |
| Year 14 | $65,315 | $37,208 | $28,106 |
| Year 15 | $72,342 | $41,489 | $30,853 |
| Year 16 | $79,790 | $45,886 | $33,905 |
| Year 17 | $87,686 | $50,407 | $37,279 |
| Year 18 | $96,055 | $55,061 | $40,994 |
| Year 19 | $104,926 | $59,859 | $45,067 |
| Year 20 | $114,330 | $64,811 | $49,519 |
| Year 21 | $124,297 | $69,928 | $54,370 |
| Year 22 | $134,863 | $75,222 | $59,641 |
| Year 23 | $146,063 | $80,706 | $65,357 |
| Year 24 | $157,935 | $86,394 | $71,541 |
| Year 25 | $170,519 | $92,300 | $78,219 |
Start Saving in Deerfield
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