How Much Can Solar Save in Summit?
Real numbers based on current ComEd rates and Illinois incentives.
$160
Current Bill/mo
$152
Est. Lease + Battery
5.4 yrs
Payback Period
$55,955
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
$160
Annual Cost
$1,920
25-Year Cost (No Solar)
$105,340
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 Summit
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $160/mo | $123/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$16/mo |
| 5-Year Cost | $10,368 | $7,380 |
| 25-Year Cost | $105,340 | $49,385 |
| 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
$55,955
Without Solar
With Solar
Year 1Payback Year
$1,920
$1,729
Year 5
$10,823
$934
Year 10
$25,307
$10,665
Year 15
$44,690
$21,596
Year 20
$70,628
$34,255
Year 25
$105,340
$49,385
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,920 | $1,729 | $191 |
| Year 2 | $3,955 | -$4,490 | $8,445 |
| Year 3 | $6,113 | -$2,711 | $8,823 |
| Year 4 | $8,399 | -$904 | $9,303 |
| Year 5 | $10,823 | $934 | $9,890 |
| Year 6 | $13,393 | $2,804 | $10,589 |
| Year 7 | $16,116 | $4,709 | $11,407 |
| Year 8 | $19,003 | $6,653 | $12,351 |
| Year 9 | $22,063 | $8,637 | $13,426 |
| Year 10 | $25,307 | $10,665 | $14,642 |
| Year 11 | $28,746 | $12,741 | $16,004 |
| Year 12 | $32,390 | $14,868 | $17,522 |
| Year 13 | $36,254 | $17,050 | $19,204 |
| Year 14 | $40,349 | $19,291 | $21,058 |
| Year 15 | $44,690 | $21,596 | $23,094 |
| Year 16 | $49,291 | $23,969 | $25,322 |
| Year 17 | $54,169 | $26,416 | $27,753 |
| Year 18 | $59,339 | $28,942 | $30,397 |
| Year 19 | $64,819 | $31,553 | $33,267 |
| Year 20 | $70,628 | $34,255 | $36,374 |
| Year 21 | $76,786 | $37,054 | $39,732 |
| Year 22 | $83,313 | $39,959 | $43,354 |
| Year 23 | $90,232 | $42,977 | $47,255 |
| Year 24 | $97,566 | $46,116 | $51,450 |
| Year 25 | $105,340 | $49,385 | $55,955 |
Start Saving in Summit
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