How Much Can Solar Save in Union?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$155
Current Bill/mo
$156
Est. Lease + Battery
6.1 yrs
Payback Period
$51,825
25-Year Savings
What You're Paying Now
Without solar, here's what Ameren Illinois electricity will cost you over time at 6% annual rate increases.
Monthly Bill
$155
Annual Cost
$1,860
25-Year Cost (No Solar)
$102,048
Your Solar Investment
7 kW System
$20,300
$11,194
After All IL Incentives
DG Rebate ($300/kW)-$2,100
Illinois Shines RECs (lump sum, ~18 mo)-$7,006
With vs Without Solar in Union
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $155/mo | $123/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$11/mo |
| 5-Year Cost | $10,044 | $7,380 |
| 25-Year Cost | $102,048 | $50,223 |
| 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
$51,825
Without Solar
With Solar
Year 1Payback Year
$1,860
$1,731
Year 5
$10,485
$1,908
Year 10
$24,516
$11,639
Year 15
$43,293
$22,554
Year 20
$68,421
$35,173
Year 25
$102,048
$50,223
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,860 | $1,731 | $129 |
| Year 2 | $3,832 | -$3,520 | $7,352 |
| Year 3 | $5,921 | -$1,739 | $7,661 |
| Year 4 | $8,137 | $69 | $8,067 |
| Year 5 | $10,485 | $1,908 | $8,577 |
| Year 6 | $12,974 | $3,779 | $9,195 |
| Year 7 | $15,613 | $5,685 | $9,928 |
| Year 8 | $18,409 | $7,628 | $10,781 |
| Year 9 | $21,374 | $9,612 | $11,762 |
| Year 10 | $24,516 | $11,639 | $12,877 |
| Year 11 | $27,847 | $13,713 | $14,134 |
| Year 12 | $31,378 | $15,838 | $15,540 |
| Year 13 | $35,121 | $18,017 | $17,104 |
| Year 14 | $39,088 | $20,254 | $18,834 |
| Year 15 | $43,293 | $22,554 | $20,739 |
| Year 16 | $47,751 | $24,922 | $22,829 |
| Year 17 | $52,476 | $27,362 | $25,114 |
| Year 18 | $57,485 | $29,880 | $27,605 |
| Year 19 | $62,794 | $32,481 | $30,312 |
| Year 20 | $68,421 | $35,173 | $33,249 |
| Year 21 | $74,386 | $37,960 | $36,426 |
| Year 22 | $80,710 | $40,851 | $39,858 |
| Year 23 | $87,412 | $43,853 | $43,559 |
| Year 24 | $94,517 | $46,974 | $47,543 |
| Year 25 | $102,048 | $50,223 | $51,825 |
Start Saving in Union
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Ameren Illinois rates projected to rise again next year. Lock in savings now.