How Much Can Solar Save in Riverwoods?
Real numbers based on current ComEd rates and Illinois incentives.
$259
Current Bill/mo
$155
Est. Lease + Battery
10.3 yrs
Payback Period
$25,196
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
15 kW System
$43,500
$23,208
After All IL Incentives
DG Rebate ($300/kW)-$4,500
Illinois Shines RECs (lump sum, ~18 mo)-$15,792
With vs Without Solar in Riverwoods
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $259/mo | $263/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-119/mo |
| 5-Year Cost | $16,783 | $15,780 |
| 25-Year Cost | $170,519 | $145,323 |
| 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
$25,196
Without Solar
With Solar
Year 1
$3,108
$4,532
Year 2Payback Year
$6,402
-$6,635
Year 5
$17,520
$7,848
Year 10
$40,966
$34,460
Year 15
$72,342
$65,148
Year 20
$114,330
$101,417
Year 25
$170,519
$145,323
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $3,108 | $4,532 | -$1,424 |
| Year 2Payback | $6,402 | -$6,635 | $13,038 |
| Year 3 | $9,895 | -$1,914 | $11,808 |
| Year 4 | $13,596 | $2,912 | $10,685 |
| Year 5 | $17,520 | $7,848 | $9,672 |
| Year 6 | $21,679 | $12,902 | $8,777 |
| Year 7 | $26,088 | $18,082 | $8,006 |
| Year 8 | $30,761 | $23,396 | $7,366 |
| Year 9 | $35,715 | $28,852 | $6,863 |
| Year 10 | $40,966 | $34,460 | $6,506 |
| Year 11 | $46,532 | $40,230 | $6,302 |
| Year 12 | $52,432 | $46,172 | $6,260 |
| Year 13 | $58,686 | $52,298 | $6,388 |
| Year 14 | $65,315 | $58,619 | $6,696 |
| Year 15 | $72,342 | $65,148 | $7,194 |
| Year 16 | $79,790 | $71,898 | $7,892 |
| Year 17 | $87,686 | $78,885 | $8,801 |
| Year 18 | $96,055 | $86,123 | $9,932 |
| Year 19 | $104,926 | $93,628 | $11,299 |
| Year 20 | $114,330 | $101,417 | $12,912 |
| Year 21 | $124,297 | $109,510 | $14,787 |
| Year 22 | $134,863 | $117,925 | $16,938 |
| Year 23 | $146,063 | $126,684 | $19,379 |
| Year 24 | $157,935 | $135,809 | $22,126 |
| Year 25 | $170,519 | $145,323 | $25,196 |
Start Saving in Riverwoods
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