How Much Can Solar Save in Petersburg?
Real numbers based on current Ameren Illinois rates and Illinois incentives.
$143
Current Bill/mo
$148
Est. Lease + Battery
6.2 yrs
Payback Period
$46,119
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
$143
Annual Cost
$1,716
25-Year Cost (No Solar)
$94,148
Your Solar Investment
6.5 kW System
$18,850
$10,394
After All IL Incentives
DG Rebate ($300/kW)-$1,950
Illinois Shines RECs (lump sum, ~18 mo)-$6,506
With vs Without Solar in Petersburg
| Metric | Without Solar | With Solar |
|---|---|---|
| Monthly Cost | $143/mo | $114/mo (loan) |
| Monthly Cash Flow | -$0 (all to utility) | +$7/mo |
| 5-Year Cost | $9,266 | $6,840 |
| 25-Year Cost | $94,148 | $48,029 |
| 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
$46,119
Without Solar
With Solar
Year 1Payback Year
$1,716
$1,636
Year 5
$9,673
$1,928
Year 10
$22,618
$11,166
Year 15
$39,942
$21,563
Year 20
$63,124
$33,617
Year 25
$94,148
$48,028
| Year | Without Solar | With Solar | Cumulative Savings |
|---|---|---|---|
| Year 1Payback | $1,716 | $1,636 | $80 |
| Year 2 | $3,535 | -$3,211 | $6,746 |
| Year 3 | $5,463 | -$1,526 | $6,989 |
| Year 4 | $7,507 | $186 | $7,321 |
| Year 5 | $9,673 | $1,928 | $7,745 |
| Year 6 | $11,970 | $3,702 | $8,268 |
| Year 7 | $14,404 | $5,510 | $8,894 |
| Year 8 | $16,984 | $7,354 | $9,630 |
| Year 9 | $19,719 | $9,239 | $10,480 |
| Year 10 | $22,618 | $11,166 | $11,452 |
| Year 11 | $25,691 | $13,139 | $12,552 |
| Year 12 | $28,949 | $15,162 | $13,787 |
| Year 13 | $32,402 | $17,237 | $15,164 |
| Year 14 | $36,062 | $19,370 | $16,692 |
| Year 15 | $39,942 | $21,563 | $18,378 |
| Year 16 | $44,054 | $23,822 | $20,232 |
| Year 17 | $48,413 | $26,152 | $22,261 |
| Year 18 | $53,034 | $28,557 | $24,477 |
| Year 19 | $57,932 | $31,044 | $26,888 |
| Year 20 | $63,124 | $33,617 | $29,507 |
| Year 21 | $68,628 | $36,284 | $32,343 |
| Year 22 | $74,461 | $39,051 | $35,410 |
| Year 23 | $80,645 | $41,926 | $38,719 |
| Year 24 | $87,200 | $44,915 | $42,284 |
| Year 25 | $94,148 | $48,028 | $46,119 |
Start Saving in Petersburg
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