How Much Can Solar Save in Somonauk?
Real numbers based on current ComEd rates and Illinois incentives.
$159
Current Bill/mo
$150
Est. Lease + Battery
6.2 yrs
Payback Period
$50,464
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
$159
Annual Cost
$1,908
25-Year Cost (No Solar)
$104,681
Your Solar Investment
8 kW System
$23,200
$11,690
After All IL Incentives
DG Rebate ($300/kW)-$2,400
Illinois Shines RECs (lump sum, ~18 mo)-$9,110
With vs Without Solar in Somonauk
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $159/mo | $140/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-4/mo |
| 5-Year Cost | $10,303 | $8,400 |
| 25-Year Cost | $104,681 | $54,217 |
| 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
$50,464
Without Solar
With Solar
Year 1
$1,908
$1,954
Year 2Payback Year
$3,930
-$5,176
Year 5
$10,756
$931
Year 10
$25,149
$11,820
Year 15
$44,411
$23,937
Year 20
$70,187
$37,818
Year 25
$104,681
$54,218
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,908 | $1,954 | -$46 |
| Year 2Payback | $3,930 | -$5,176 | $9,107 |
| Year 3 | $6,074 | -$3,170 | $9,245 |
| Year 4 | $8,347 | -$1,136 | $9,482 |
| Year 5 | $10,756 | $931 | $9,825 |
| Year 6 | $13,309 | $3,030 | $10,279 |
| Year 7 | $16,015 | $5,166 | $10,849 |
| Year 8 | $18,884 | $7,341 | $11,544 |
| Year 9 | $21,925 | $9,558 | $12,368 |
| Year 10 | $25,149 | $11,820 | $13,329 |
| Year 11 | $28,566 | $14,130 | $14,436 |
| Year 12 | $32,188 | $16,493 | $15,695 |
| Year 13 | $36,027 | $18,913 | $17,115 |
| Year 14 | $40,097 | $21,392 | $18,705 |
| Year 15 | $44,411 | $23,937 | $20,474 |
| Year 16 | $48,983 | $26,552 | $22,432 |
| Year 17 | $53,830 | $29,241 | $24,589 |
| Year 18 | $58,968 | $32,012 | $26,956 |
| Year 19 | $64,414 | $34,868 | $29,546 |
| Year 20 | $70,187 | $37,818 | $32,369 |
| Year 21 | $76,306 | $40,868 | $35,438 |
| Year 22 | $82,792 | $44,025 | $38,768 |
| Year 23 | $89,668 | $47,296 | $42,372 |
| Year 24 | $96,956 | $50,691 | $46,265 |
| Year 25 | $104,681 | $54,218 | $50,464 |
Start Saving in Somonauk
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