How Much Can Solar Save in Prospect Heights?
Real numbers based on current ComEd rates and Illinois incentives.
$197
Current Bill/mo
$167
Est. Lease + Battery
5.5 yrs
Payback Period
$66,427
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
$197
Annual Cost
$2,364
25-Year Cost (No Solar)
$129,700
Your Solar Investment
8.5 kW System
$24,650
$12,420
After All IL Incentives
DG Rebate ($300/kW)-$2,550
Illinois Shines RECs (lump sum, ~18 mo)-$9,680
With vs Without Solar in Prospect Heights
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $197/mo | $149/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$17/mo |
| 5-Year Cost | $12,766 | $8,940 |
| 25-Year Cost | $129,700 | $63,273 |
| 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
$66,427
Without Solar
With Solar
Year 1Payback Year
$2,364
$2,162
Year 5
$13,326
$1,484
Year 10
$31,159
$13,764
Year 15
$55,024
$27,649
Year 20
$86,961
$43,829
Year 25
$129,700
$63,273
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $2,364 | $2,162 | $202 |
| Year 2 | $4,870 | -$5,324 | $10,193 |
| Year 3 | $7,526 | -$3,093 | $10,620 |
| Year 4 | $10,342 | -$825 | $11,167 |
| Year 5 | $13,326 | $1,484 | $11,842 |
| Year 6 | $16,490 | $3,837 | $12,652 |
| Year 7 | $19,843 | $6,238 | $13,605 |
| Year 8 | $23,398 | $8,690 | $14,707 |
| Year 9 | $27,165 | $11,197 | $15,968 |
| Year 10 | $31,159 | $13,764 | $17,396 |
| Year 11 | $35,393 | $16,393 | $19,000 |
| Year 12 | $39,881 | $19,092 | $20,789 |
| Year 13 | $44,637 | $21,863 | $22,774 |
| Year 14 | $49,680 | $24,714 | $24,966 |
| Year 15 | $55,024 | $27,649 | $27,376 |
| Year 16 | $60,690 | $30,675 | $30,015 |
| Year 17 | $66,695 | $33,799 | $32,897 |
| Year 18 | $73,061 | $37,027 | $36,034 |
| Year 19 | $79,809 | $40,368 | $39,441 |
| Year 20 | $86,961 | $43,829 | $43,132 |
| Year 21 | $94,543 | $47,420 | $47,123 |
| Year 22 | $102,579 | $51,149 | $51,430 |
| Year 23 | $111,098 | $55,027 | $56,071 |
| Year 24 | $120,128 | $59,065 | $61,063 |
| Year 25 | $129,700 | $63,273 | $66,427 |
Start Saving in Prospect Heights
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