How Much Can Solar Save in Markham?
Real numbers based on current ComEd rates and Illinois incentives.
$127
Current Bill/mo
$134
Est. Lease + Battery
6.3 yrs
Payback Period
$40,021
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
$127
Annual Cost
$1,524
25-Year Cost (No Solar)
$83,614
Your Solar Investment
6.5 kW System
$18,850
$9,498
After All IL Incentives
DG Rebate ($300/kW)-$1,950
Illinois Shines RECs (lump sum, ~18 mo)-$7,402
With vs Without Solar in Markham
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $127/mo | $114/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-5/mo |
| 5-Year Cost | $8,230 | $6,840 |
| 25-Year Cost | $83,614 | $43,593 |
| 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
$40,021
Without Solar
With Solar
Year 1
$1,524
$1,581
Year 2Payback Year
$3,139
-$4,220
Year 5
$8,591
$715
Year 10
$20,088
$9,505
Year 15
$35,473
$19,268
Year 20
$56,061
$30,431
Year 25
$83,614
$43,592
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,524 | $1,581 | -$57 |
| Year 2Payback | $3,139 | -$4,220 | $7,360 |
| Year 3 | $4,852 | -$2,599 | $7,450 |
| Year 4 | $6,667 | -$954 | $7,621 |
| Year 5 | $8,591 | $715 | $7,876 |
| Year 6 | $10,630 | $2,411 | $8,219 |
| Year 7 | $12,792 | $4,136 | $8,656 |
| Year 8 | $15,084 | $5,892 | $9,192 |
| Year 9 | $17,513 | $7,680 | $9,832 |
| Year 10 | $20,088 | $9,505 | $10,583 |
| Year 11 | $22,817 | $11,368 | $11,449 |
| Year 12 | $25,710 | $13,273 | $12,437 |
| Year 13 | $28,776 | $15,222 | $13,554 |
| Year 14 | $32,027 | $17,219 | $14,808 |
| Year 15 | $35,473 | $19,268 | $16,204 |
| Year 16 | $39,125 | $21,372 | $17,752 |
| Year 17 | $42,996 | $23,536 | $19,460 |
| Year 18 | $47,100 | $25,764 | $21,336 |
| Year 19 | $51,450 | $28,061 | $23,390 |
| Year 20 | $56,061 | $30,431 | $25,630 |
| Year 21 | $60,949 | $32,880 | $28,069 |
| Year 22 | $66,130 | $35,415 | $30,715 |
| Year 23 | $71,622 | $38,040 | $33,581 |
| Year 24 | $77,443 | $40,764 | $36,679 |
| Year 25 | $83,614 | $43,592 | $40,021 |
Start Saving in Markham
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