At CORVUS PRO SOLAR, our goal is to make this process as transparent and “easy” as possible, a sentiment echoed by many of your neighbors in our 4.9 star Google Reviews.
Your system at a glance
11 panels, 5.06 kW, producing about 5,496 kWh a year.
Your actual roof layout from the design team.
5.06 kW
11 panels
5,496
kWh made each year
104%
of your power covered
What you pay every month, for 25 years
Orange is Ameren Illinois, climbing 13.5% a year. Green is your solar payment, locked to 2.99% a year. The gap between them is money you keep.
Ameren Illinois bill
Solar payment
Your system
System size
5.06 kW
Panels
11
Panel model
REC460AA PURE-RX-DC
Energy offset
104%
Year 1 production
5,496 kWh
Utility
Ameren Illinois
Monthly solar payment
$59.53
Current power bill
$96
Where this lands
Your solar payment is lower than your power bill from month one, and the distance only widens.
Today
Ameren$96/mo
Solar$60/mo
You keep $36 a month
Year 10
Ameren$299/mo
Solar$78/mo
You keep $222 a month
Year 25
Ameren$2,000/mo
Solar$121/mo
You keep $1,879 a month
Year by year
Your first five years, with all 25 a click away. Ameren Illinois escalated 13.5% annually from $96 a month. Solar escalated 2.99% annually from $59.53 a month.
| Year | Ameren Illinois | Solar | Saved / mo | Saved / yr | Running total |
|---|---|---|---|---|---|
| 1 | $96 | $60 | $36 | $435 | $435 |
| 2 | $109 | $61 | $47 | $568 | $1,003 |
| 3 | $123 | $63 | $60 | $722 | $1,725 |
| 4 | $140 | $65 | $75 | $900 | $2,625 |
| 5 | $159 | $67 | $92 | $1,103 | $3,728 |
| 25 yr | $193,271 | $26,011 | $167,260 | $167,260 |
View all 25 yearsShow less
| Year | Ameren Illinois | Solar | Saved / mo | Saved / yr | Running total |
|---|---|---|---|---|---|
| 6 | $180 | $69 | $111 | $1,336 | $5,065 |
| 7 | $205 | $71 | $134 | $1,604 | $6,669 |
| 8 | $232 | $73 | $159 | $1,910 | $8,579 |
| 9 | $264 | $75 | $188 | $2,260 | $10,839 |
| 10 | $299 | $78 | $222 | $2,660 | $13,499 |
| 11 | $340 | $80 | $260 | $3,117 | $16,616 |
| 12 | $386 | $82 | $303 | $3,639 | $20,255 |
| 13 | $438 | $85 | $353 | $4,234 | $24,489 |
| 14 | $497 | $87 | $409 | $4,913 | $29,402 |
| 15 | $564 | $90 | $474 | $5,686 | $35,088 |
| 16 | $640 | $93 | $547 | $6,567 | $41,655 |
| 17 | $726 | $95 | $631 | $7,570 | $49,225 |
| 18 | $824 | $98 | $726 | $8,712 | $57,937 |
| 19 | $936 | $101 | $834 | $10,013 | $67,950 |
| 20 | $1,062 | $104 | $958 | $11,492 | $79,441 |
| 21 | $1,205 | $107 | $1,098 | $13,175 | $92,616 |
| 22 | $1,368 | $111 | $1,257 | $15,088 | $107,704 |
| 23 | $1,553 | $114 | $1,439 | $17,265 | $124,969 |
| 24 | $1,762 | $117 | $1,645 | $19,739 | $144,708 |
| 25 | $2,000 | $121 | $1,879 | $22,552 | $167,260 |
The fine print
- What this compares. Your current average power bill of $96 a month against your solar payment of $59.53 a month, over 25 years. Utility escalated at 13.5% per year, solar at 2.99% per year.
- Still connected to the grid. You are still connected to the utility grid and would be expected to pay a small fixed monthly rate, considered the standard connection fee.
- Ameren Illinois rates are moving. Ameren Illinois residential rates have risen about 94 percent since 2021, roughly 8 cents to 15.5 cents per kWh in 2026, driven by ICC approved increases and a sharp rise in regional capacity prices. Past increases do not guarantee future ones.
- This is an estimate, not a contract. Production, rates and savings are projections. Nothing here is a guarantee.