How Much Can Solar Save in Westmont?
Real numbers based on current ComEd rates and Illinois incentives.
$204
Current Bill/mo
$172
Est. Lease + Battery
5.5 yrs
Payback Period
$69,846
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
$204
Annual Cost
$2,448
25-Year Cost (No Solar)
$134,308
Your Solar Investment
9 kW System
$26,100
$13,151
After All IL Incentives
DG Rebate ($300/kW)-$2,700
Illinois Shines RECs (lump sum, ~18 mo)-$10,249
With vs Without Solar in Westmont
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $204/mo | $158/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$17/mo |
| 5-Year Cost | $13,219 | $9,480 |
| 25-Year Cost | $134,308 | $64,462 |
| 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
$69,846
Without Solar
With Solar
Year 1Payback Year
$2,448
$2,243
Year 5
$13,800
$1,315
Year 10
$32,267
$13,971
Year 15
$56,980
$28,208
Year 20
$90,051
$44,715
Year 25
$134,308
$64,462
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $2,448 | $2,243 | $205 |
| Year 2 | $5,043 | -$5,730 | $10,773 |
| Year 3 | $7,793 | -$3,420 | $11,213 |
| Year 4 | $10,709 | -$1,073 | $11,782 |
| Year 5 | $13,800 | $1,315 | $12,485 |
| Year 6 | $17,076 | $3,745 | $13,330 |
| Year 7 | $20,548 | $6,222 | $14,326 |
| Year 8 | $24,229 | $8,750 | $15,479 |
| Year 9 | $28,131 | $11,331 | $16,799 |
| Year 10 | $32,267 | $13,971 | $18,296 |
| Year 11 | $36,651 | $16,673 | $19,977 |
| Year 12 | $41,298 | $19,443 | $21,855 |
| Year 13 | $46,223 | $22,285 | $23,939 |
| Year 14 | $51,445 | $25,205 | $26,240 |
| Year 15 | $56,980 | $28,208 | $28,771 |
| Year 16 | $62,846 | $31,302 | $31,545 |
| Year 17 | $69,065 | $34,492 | $34,574 |
| Year 18 | $75,657 | $37,785 | $37,872 |
| Year 19 | $82,644 | $41,191 | $41,454 |
| Year 20 | $90,051 | $44,715 | $45,336 |
| Year 21 | $97,902 | $48,368 | $49,534 |
| Year 22 | $106,224 | $52,159 | $54,065 |
| Year 23 | $115,046 | $56,098 | $58,948 |
| Year 24 | $124,397 | $60,195 | $64,202 |
| Year 25 | $134,308 | $64,462 | $69,846 |
Start Saving in Westmont
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