How Much Can Solar Save in Grayslake?
Real numbers based on current ComEd rates and Illinois incentives.
$179
Current Bill/mo
$157
Est. Lease + Battery
5.8 yrs
Payback Period
$57,273
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
$179
Annual Cost
$2,148
25-Year Cost (No Solar)
$117,849
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 Grayslake
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $179/mo | $140/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$7/mo |
| 5-Year Cost | $11,599 | $8,400 |
| 25-Year Cost | $117,849 | $60,576 |
| 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
$57,273
Without Solar
With Solar
Year 1Payback Year
$2,148
$2,061
Year 5
$12,108
$1,538
Year 10
$28,312
$13,264
Year 15
$49,997
$26,534
Year 20
$79,015
$42,001
Year 25
$117,849
$60,576
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $2,148 | $2,061 | $87 |
| Year 2 | $4,425 | -$4,957 | $9,382 |
| Year 3 | $6,838 | -$2,830 | $9,668 |
| Year 4 | $9,397 | -$666 | $10,063 |
| Year 5 | $12,108 | $1,538 | $10,571 |
| Year 6 | $14,983 | $3,784 | $11,199 |
| Year 7 | $18,030 | $6,076 | $11,954 |
| Year 8 | $21,260 | $8,418 | $12,842 |
| Year 9 | $24,683 | $10,813 | $13,871 |
| Year 10 | $28,312 | $13,264 | $15,048 |
| Year 11 | $32,159 | $15,777 | $16,382 |
| Year 12 | $36,237 | $18,355 | $17,881 |
| Year 13 | $40,559 | $21,004 | $19,554 |
| Year 14 | $45,140 | $23,729 | $21,412 |
| Year 15 | $49,997 | $26,534 | $23,462 |
| Year 16 | $55,145 | $29,427 | $25,718 |
| Year 17 | $60,601 | $32,413 | $28,188 |
| Year 18 | $66,385 | $35,499 | $30,886 |
| Year 19 | $72,516 | $38,692 | $33,824 |
| Year 20 | $79,015 | $42,001 | $37,015 |
| Year 21 | $85,904 | $45,432 | $40,472 |
| Year 22 | $93,207 | $48,996 | $44,211 |
| Year 23 | $100,947 | $52,700 | $48,247 |
| Year 24 | $109,152 | $56,557 | $52,595 |
| Year 25 | $117,849 | $60,576 | $57,273 |
Start Saving in Grayslake
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