How Much Can Solar Save in DeKalb?
Real numbers based on current ComEd rates and Illinois incentives.
$154
Current Bill/mo
$146
Est. Lease + Battery
5.8 yrs
Payback Period
$50,248
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
$154
Annual Cost
$1,848
25-Year Cost (No Solar)
$101,390
Your Solar Investment
7 kW System
$20,300
$10,228
After All IL Incentives
DG Rebate ($300/kW)-$2,100
Illinois Shines RECs (lump sum, ~18 mo)-$7,972
With vs Without Solar in DeKalb
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $154/mo | $123/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$7/mo |
| 5-Year Cost | $9,979 | $7,380 |
| 25-Year Cost | $101,390 | $51,142 |
| 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
$50,248
Without Solar
With Solar
Year 1Payback Year
$1,848
$1,769
Year 5
$10,417
$1,153
Year 10
$24,358
$11,157
Year 15
$43,014
$22,425
Year 20
$67,980
$35,500
Year 25
$101,390
$51,142
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,848 | $1,769 | $79 |
| Year 2 | $3,807 | -$4,408 | $8,215 |
| Year 3 | $5,883 | -$2,585 | $8,469 |
| Year 4 | $8,084 | -$732 | $8,817 |
| Year 5 | $10,417 | $1,153 | $9,265 |
| Year 6 | $12,890 | $3,073 | $9,818 |
| Year 7 | $15,512 | $5,030 | $10,482 |
| Year 8 | $18,291 | $7,028 | $11,263 |
| Year 9 | $21,236 | $9,069 | $12,167 |
| Year 10 | $24,358 | $11,157 | $13,201 |
| Year 11 | $27,668 | $13,295 | $14,373 |
| Year 12 | $31,176 | $15,486 | $15,689 |
| Year 13 | $34,894 | $17,736 | $17,159 |
| Year 14 | $38,836 | $20,047 | $18,789 |
| Year 15 | $43,014 | $22,425 | $20,589 |
| Year 16 | $47,443 | $24,875 | $22,568 |
| Year 17 | $52,137 | $27,402 | $24,736 |
| Year 18 | $57,114 | $30,011 | $27,103 |
| Year 19 | $62,388 | $32,708 | $29,680 |
| Year 20 | $67,980 | $35,500 | $32,479 |
| Year 21 | $73,907 | $38,394 | $35,512 |
| Year 22 | $80,189 | $41,397 | $38,792 |
| Year 23 | $86,848 | $44,517 | $42,331 |
| Year 24 | $93,907 | $47,762 | $46,145 |
| Year 25 | $101,390 | $51,142 | $50,248 |
Start Saving in DeKalb
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