How Much Can Solar Save in Marengo?
Real numbers based on current ComEd rates and Illinois incentives.
$153
Current Bill/mo
$148
Est. Lease + Battery
5.3 yrs
Payback Period
$54,133
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
$153
Annual Cost
$1,836
25-Year Cost (No Solar)
$100,731
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 Marengo
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $153/mo | $114/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$18/mo |
| 5-Year Cost | $9,914 | $6,840 |
| 25-Year Cost | $100,731 | $46,598 |
| 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
$54,133
Without Solar
With Solar
Year 1Payback Year
$1,836
$1,616
Year 5
$10,350
$929
Year 10
$24,200
$10,055
Year 15
$42,735
$20,336
Year 20
$67,538
$32,279
Year 25
$100,731
$46,598
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,836 | $1,616 | $220 |
| Year 2 | $3,782 | -$4,147 | $7,929 |
| Year 3 | $5,845 | -$2,483 | $8,328 |
| Year 4 | $8,032 | -$792 | $8,823 |
| Year 5 | $10,350 | $929 | $9,421 |
| Year 6 | $12,807 | $2,681 | $10,126 |
| Year 7 | $15,411 | $4,467 | $10,944 |
| Year 8 | $18,172 | $6,289 | $11,883 |
| Year 9 | $21,098 | $8,151 | $12,947 |
| Year 10 | $24,200 | $10,055 | $14,144 |
| Year 11 | $27,488 | $12,006 | $15,482 |
| Year 12 | $30,973 | $14,005 | $16,968 |
| Year 13 | $34,668 | $16,057 | $18,611 |
| Year 14 | $38,584 | $18,166 | $20,418 |
| Year 15 | $42,735 | $20,336 | $22,398 |
| Year 16 | $47,135 | $22,573 | $24,562 |
| Year 17 | $51,799 | $24,879 | $26,919 |
| Year 18 | $56,743 | $27,262 | $29,480 |
| Year 19 | $61,983 | $29,727 | $32,256 |
| Year 20 | $67,538 | $32,279 | $35,259 |
| Year 21 | $73,427 | $34,925 | $38,501 |
| Year 22 | $79,668 | $37,673 | $41,995 |
| Year 23 | $86,284 | $40,529 | $45,756 |
| Year 24 | $93,297 | $43,501 | $49,796 |
| Year 25 | $100,731 | $46,598 | $54,133 |
Start Saving in Marengo
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