How Much Can Solar Save in Carpentersville?
Real numbers based on current ComEd rates and Illinois incentives.
$161
Current Bill/mo
$148
Est. Lease + Battery
5.6 yrs
Payback Period
$52,368
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
$161
Annual Cost
$1,932
25-Year Cost (No Solar)
$105,998
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 Carpentersville
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $161/mo | $123/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$10/mo |
| 5-Year Cost | $10,433 | $7,380 |
| 25-Year Cost | $105,998 | $53,630 |
| 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
$52,368
Without Solar
With Solar
Year 1Payback Year
$1,932
$1,811
Year 5
$10,891
$1,394
Year 10
$25,465
$11,729
Year 15
$44,969
$23,450
Year 20
$71,070
$37,143
Year 25
$105,998
$53,630
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,932 | $1,811 | $121 |
| Year 2 | $3,980 | -$4,321 | $8,301 |
| Year 3 | $6,151 | -$2,450 | $8,600 |
| Year 4 | $8,452 | -$546 | $8,997 |
| Year 5 | $10,891 | $1,394 | $9,497 |
| Year 6 | $13,476 | $3,372 | $10,104 |
| Year 7 | $16,217 | $5,391 | $10,825 |
| Year 8 | $19,122 | $7,455 | $11,667 |
| Year 9 | $22,201 | $9,566 | $12,635 |
| Year 10 | $25,465 | $11,729 | $13,737 |
| Year 11 | $28,925 | $13,946 | $14,979 |
| Year 12 | $32,593 | $16,222 | $16,370 |
| Year 13 | $36,480 | $18,562 | $17,918 |
| Year 14 | $40,601 | $20,969 | $19,632 |
| Year 15 | $44,969 | $23,450 | $21,519 |
| Year 16 | $49,599 | $26,008 | $23,591 |
| Year 17 | $54,507 | $28,651 | $25,857 |
| Year 18 | $59,710 | $31,383 | $28,327 |
| Year 19 | $65,224 | $34,212 | $31,013 |
| Year 20 | $71,070 | $37,143 | $33,926 |
| Year 21 | $77,266 | $40,186 | $37,080 |
| Year 22 | $83,834 | $43,347 | $40,487 |
| Year 23 | $90,796 | $46,635 | $44,160 |
| Year 24 | $98,176 | $50,060 | $48,116 |
| Year 25 | $105,998 | $53,630 | $52,368 |
Start Saving in Carpentersville
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