How Much Can Solar Save in Northfield?
Real numbers based on current ComEd rates and Illinois incentives.
$259
Current Bill/mo
$162
Est. Lease + Battery
9.7 yrs
Payback Period
$32,357
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
$259
Annual Cost
$3,108
25-Year Cost (No Solar)
$170,519
Your Solar Investment
15 kW System
$43,500
$23,208
After All IL Incentives
DG Rebate ($300/kW)-$4,500
Illinois Shines RECs (lump sum, ~18 mo)-$15,792
With vs Without Solar in Northfield
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $259/mo | $263/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-107/mo |
| 5-Year Cost | $16,783 | $15,780 |
| 25-Year Cost | $170,519 | $138,162 |
| 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
$32,357
Without Solar
With Solar
Year 1
$3,108
$4,392
Year 2Payback Year
$6,402
-$6,924
Year 5
$17,520
$7,064
Year 10
$40,966
$32,653
Year 15
$72,342
$62,005
Year 20
$114,330
$96,531
Year 25
$170,519
$138,162
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $3,108 | $4,392 | -$1,284 |
| Year 2Payback | $6,402 | -$6,924 | $13,327 |
| Year 3 | $9,895 | -$2,359 | $12,254 |
| Year 4 | $13,596 | $2,302 | $11,295 |
| Year 5 | $17,520 | $7,064 | $10,456 |
| Year 6 | $21,679 | $11,935 | $9,745 |
| Year 7 | $26,088 | $16,921 | $9,167 |
| Year 8 | $30,761 | $22,031 | $8,731 |
| Year 9 | $35,715 | $27,272 | $8,443 |
| Year 10 | $40,966 | $32,653 | $8,313 |
| Year 11 | $46,532 | $38,183 | $8,349 |
| Year 12 | $52,432 | $43,873 | $8,559 |
| Year 13 | $58,686 | $49,732 | $8,954 |
| Year 14 | $65,315 | $55,772 | $9,543 |
| Year 15 | $72,342 | $62,005 | $10,337 |
| Year 16 | $79,790 | $68,443 | $11,347 |
| Year 17 | $87,686 | $75,100 | $12,586 |
| Year 18 | $96,055 | $81,990 | $14,065 |
| Year 19 | $104,926 | $89,128 | $15,798 |
| Year 20 | $114,330 | $96,531 | $17,798 |
| Year 21 | $124,297 | $104,216 | $20,081 |
| Year 22 | $134,863 | $112,201 | $22,662 |
| Year 23 | $146,063 | $120,507 | $25,556 |
| Year 24 | $157,935 | $129,153 | $28,782 |
| Year 25 | $170,519 | $138,162 | $32,357 |
Start Saving in Northfield
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