How Much Can Solar Save in Marine?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$135
Current Bill/mo
$145
Est. Lease + Battery
7.2 yrs
Payback Period
$39,043
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
$135
Annual Cost
$1,620
25-Year Cost (No Solar)
$88,881
Your Solar Investment
7.5 kW System
$21,750
$11,993
After All IL Incentives
DG Rebate ($300/kW)-$2,250
Illinois Shines RECs (lump sum, ~18 mo)-$7,507
With vs Without Solar in Marine
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $135/mo | $132/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | $-15/mo |
| 5-Year Cost | $8,748 | $7,920 |
| 25-Year Cost | $88,881 | $49,838 |
| 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
$39,043
Without Solar
With Solar
Year 1
$1,620
$1,805
Year 2Payback Year
$3,337
-$3,875
Year 5
$9,132
$1,747
Year 10
$21,353
$11,716
Year 15
$37,707
$22,722
Year 20
$59,593
$35,216
Year 25
$88,881
$49,838
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1 | $1,620 | $1,805 | -$185 |
| Year 2Payback | $3,337 | -$3,875 | $7,212 |
| Year 3 | $5,157 | -$2,026 | $7,184 |
| Year 4 | $7,087 | -$153 | $7,240 |
| Year 5 | $9,132 | $1,747 | $7,385 |
| Year 6 | $11,300 | $3,675 | $7,625 |
| Year 7 | $13,598 | $5,633 | $7,965 |
| Year 8 | $16,034 | $7,625 | $8,409 |
| Year 9 | $18,616 | $9,651 | $8,965 |
| Year 10 | $21,353 | $11,716 | $9,637 |
| Year 11 | $24,254 | $13,822 | $10,432 |
| Year 12 | $27,329 | $15,972 | $11,357 |
| Year 13 | $30,589 | $18,170 | $12,419 |
| Year 14 | $34,044 | $20,418 | $13,626 |
| Year 15 | $37,707 | $22,722 | $14,985 |
| Year 16 | $41,589 | $25,084 | $16,505 |
| Year 17 | $45,705 | $27,510 | $18,195 |
| Year 18 | $50,067 | $30,004 | $20,063 |
| Year 19 | $54,691 | $32,571 | $22,120 |
| Year 20 | $59,593 | $35,216 | $24,376 |
| Year 21 | $64,788 | $37,946 | $26,842 |
| Year 22 | $70,296 | $40,766 | $29,529 |
| Year 23 | $76,133 | $43,684 | $32,450 |
| Year 24 | $82,321 | $46,705 | $35,616 |
| Year 25 | $88,881 | $49,838 | $39,043 |
Start Saving in Marine
Get a free, personalized solar analysis based on your actual Ameren Illinois bill and roof. Lease or own — we'll find the best option.
✓ $0 down lease available — save from day 1 with no upfront cost
Ameren Illinois rates projected to rise again next year. Lock in savings now.