How Much Can Solar Save in Bannockburn?
Real numbers based on current ComEd rates and Illinois incentives.
$259
Current Bill/mo
$200
Est. Lease + Battery
6.7 yrs
Payback Period
$78,687
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 Bannockburn
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $259/mo | $237/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-15/mo |
| 5-Year Cost | $16,783 | $14,220 |
| 25-Year Cost | $170,519 | $91,832 |
| 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
$78,687
Without Solar
With Solar
Year 1
$3,108
$3,290
Year 2Payback Year
$6,402
-$7,591
Year 5
$17,520
$2,682
Year 10
$40,966
$20,973
Year 15
$72,342
$41,283
Year 20
$114,330
$64,491
Year 25
$170,519
$91,831
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $3,108 | $3,290 | -$182 |
| Year 2Payback | $6,402 | -$7,591 | $13,994 |
| Year 3 | $9,895 | -$4,216 | $14,110 |
| Year 4 | $13,596 | -$793 | $14,389 |
| Year 5 | $17,520 | $2,682 | $14,838 |
| Year 6 | $21,679 | $6,212 | $15,468 |
| Year 7 | $26,088 | $9,801 | $16,287 |
| Year 8 | $30,761 | $13,454 | $17,307 |
| Year 9 | $35,715 | $17,177 | $18,538 |
| Year 10 | $40,966 | $20,973 | $19,993 |
| Year 11 | $46,532 | $24,850 | $21,682 |
| Year 12 | $52,432 | $28,813 | $23,619 |
| Year 13 | $58,686 | $32,868 | $25,818 |
| Year 14 | $65,315 | $37,022 | $28,293 |
| Year 15 | $72,342 | $41,283 | $31,058 |
| Year 16 | $79,790 | $45,659 | $34,131 |
| Year 17 | $87,686 | $50,159 | $37,527 |
| Year 18 | $96,055 | $54,791 | $41,264 |
| Year 19 | $104,926 | $59,564 | $45,362 |
| Year 20 | $114,330 | $64,491 | $49,839 |
| Year 21 | $124,297 | $69,581 | $54,716 |
| Year 22 | $134,863 | $74,847 | $60,016 |
| Year 23 | $146,063 | $80,302 | $65,761 |
| Year 24 | $157,935 | $85,958 | $71,977 |
| Year 25 | $170,519 | $91,831 | $78,687 |
Start Saving in Bannockburn
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