How Much Can Solar Save in Diamond?
Real numbers based on current ComEd rates and Illinois incentives.
$156
Current Bill/mo
$147
Est. Lease + Battery
5.7 yrs
Payback Period
$51,346
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
$156
Annual Cost
$1,872
25-Year Cost (No Solar)
$102,706
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 Diamond
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $156/mo | $123/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$8/mo |
| 5-Year Cost | $10,109 | $7,380 |
| 25-Year Cost | $102,706 | $51,360 |
| 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
$51,346
Without Solar
With Solar
Year 1Payback Year
$1,872
$1,771
Year 5
$10,553
$1,168
Year 10
$24,674
$11,196
Year 15
$43,573
$22,502
Year 20
$68,863
$35,634
Year 25
$102,706
$51,361
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,872 | $1,771 | $101 |
| Year 2 | $3,856 | -$4,403 | $8,259 |
| Year 3 | $5,960 | -$2,577 | $8,537 |
| Year 4 | $8,189 | -$721 | $8,910 |
| Year 5 | $10,553 | $1,168 | $9,385 |
| Year 6 | $13,058 | $3,092 | $9,966 |
| Year 7 | $15,713 | $5,054 | $10,660 |
| Year 8 | $18,528 | $7,056 | $11,472 |
| Year 9 | $21,512 | $9,103 | $12,409 |
| Year 10 | $24,674 | $11,196 | $13,478 |
| Year 11 | $28,027 | $13,340 | $14,687 |
| Year 12 | $31,581 | $15,539 | $16,042 |
| Year 13 | $35,347 | $17,796 | $17,552 |
| Year 14 | $39,340 | $20,115 | $19,225 |
| Year 15 | $43,573 | $22,502 | $21,070 |
| Year 16 | $48,059 | $24,962 | $23,097 |
| Year 17 | $52,815 | $27,499 | $25,316 |
| Year 18 | $57,855 | $30,119 | $27,736 |
| Year 19 | $63,199 | $32,829 | $30,370 |
| Year 20 | $68,863 | $35,634 | $33,228 |
| Year 21 | $74,866 | $38,543 | $36,324 |
| Year 22 | $81,230 | $41,561 | $39,669 |
| Year 23 | $87,976 | $44,698 | $43,278 |
| Year 24 | $95,127 | $47,962 | $47,165 |
| Year 25 | $102,706 | $51,361 | $51,346 |
Start Saving in Diamond
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