How Much Can Solar Save in Alpha?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$123
Current Bill/mo
$138
Est. Lease + Battery
8.3 yrs
Payback Period
$30,428
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
$123
Annual Cost
$1,476
25-Year Cost (No Solar)
$80,980
Your Solar Investment
8 kW System
$23,200
$12,793
After All IL Incentives
DG Rebate ($300/kW)-$2,400
Illinois Shines RECs (lump sum, ~18 mo)-$8,007
With vs Without Solar in Alpha
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $123/mo | $140/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-35/mo |
| 5-Year Cost | $7,970 | $8,400 |
| 25-Year Cost | $80,980 | $50,552 |
| 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
$30,428
Without Solar
With Solar
Year 1
$1,476
$1,894
Year 2Payback Year
$3,041
-$4,200
Year 5
$8,320
$1,671
Year 10
$19,455
$12,007
Year 15
$34,355
$23,295
Year 20
$54,296
$35,948
Year 25
$80,980
$50,552
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,476 | $1,894 | -$418 |
| Year 2Payback | $3,041 | -$4,200 | $7,240 |
| Year 3 | $4,699 | -$2,266 | $6,965 |
| Year 4 | $6,457 | -$309 | $6,766 |
| Year 5 | $8,320 | $1,671 | $6,649 |
| Year 6 | $10,296 | $3,678 | $6,618 |
| Year 7 | $12,389 | $5,713 | $6,677 |
| Year 8 | $14,609 | $7,778 | $6,831 |
| Year 9 | $16,961 | $9,875 | $7,086 |
| Year 10 | $19,455 | $12,007 | $7,448 |
| Year 11 | $22,098 | $14,177 | $7,921 |
| Year 12 | $24,900 | $16,388 | $8,512 |
| Year 13 | $27,870 | $18,642 | $9,228 |
| Year 14 | $31,018 | $20,943 | $10,075 |
| Year 15 | $34,355 | $23,295 | $11,061 |
| Year 16 | $37,893 | $25,700 | $12,193 |
| Year 17 | $41,642 | $28,164 | $13,478 |
| Year 18 | $45,617 | $30,690 | $14,927 |
| Year 19 | $49,830 | $33,283 | $16,547 |
| Year 20 | $54,296 | $35,948 | $18,347 |
| Year 21 | $59,029 | $38,691 | $20,339 |
| Year 22 | $64,047 | $41,516 | $22,531 |
| Year 23 | $69,366 | $44,430 | $24,936 |
| Year 24 | $75,004 | $47,440 | $27,564 |
| Year 25 | $80,980 | $50,552 | $30,428 |
Start Saving in Alpha
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Ameren Illinois rates projected to rise again next year. Lock in savings now.