How Much Can Solar Save in Chesterfield?

Real numbers based on current Ameren Illinois rates and Illinois incentives.

$115

Current Bill/mo

$134

Est. Lease + Battery

20+ yrs

Years of Pure Profit

$22,858

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

$115

Annual Cost

$1,380

25-Year Cost (No Solar)

$75,713

Your Solar Investment

9 kW System

$24,750

$15,491

After All IL Incentives

DG Rebate ($300/kW)-$2,700

Illinois Shines RECs (lump sum, ~18 mo)-$6,559

With vs Without Solar in Chesterfield

Metric	Without Solar	With Solar
Monthly Cost	$115/mo	$149/mo (loan)
Monthly Cash Flow	-$0 (all to utility)	$-49/mo
5-Year Cost	$7,452	$8,940
25-Year Cost	$75,713	$52,855
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

$22,858

Without Solar

With Solar

Year 1

$1,380

$1,970

Year 2Profit Starts Here

$2,843

-$2,602

Year 5

$7,779

$3,478

Year 10

$18,189

$14,109

Year 15

$32,121

$25,603

Year 20

$50,764

$38,340

Year 25

$75,713

$52,855

Year	Without Solar	With Solar	Cumulative Savings
Year 1	$1,380	$1,970	-$590
Year 2Profit Starts	$2,843	-$2,602	$5,445
Year 3	$4,393	-$596	$4,990
Year 4	$6,037	$1,430	$4,607
Year 5	$7,779	$3,478	$4,301
Year 6	$9,626	$5,549	$4,077
Year 7	$11,583	$7,646	$3,938
Year 8	$13,659	$9,770	$3,889
Year 9	$15,858	$11,924	$3,935
Year 10	$18,189	$14,109	$4,081
Year 11	$20,661	$16,328	$4,333
Year 12	$23,281	$18,584	$4,696
Year 13	$26,057	$20,880	$5,177
Year 14	$29,001	$23,219	$5,782
Year 15	$32,121	$25,603	$6,518
Year 16	$35,428	$28,036	$7,392
Year 17	$38,934	$30,523	$8,411
Year 18	$42,650	$33,066	$9,584
Year 19	$46,589	$35,670	$10,919
Year 20	$50,764	$38,340	$12,424
Year 21	$55,190	$41,080	$14,110
Year 22	$59,881	$43,896	$15,986
Year 23	$64,854	$46,793	$18,061
Year 24	$70,125	$49,777	$20,348
Year 25	$75,713	$52,855	$22,858

Calculate YOUR Savings

Enter your actual Ameren Illinois bill to see a personalized 25-year savings projection.

$Enter Your Information

Average Monthly Electric Bill

Current Utility Rate ($/kWh)

Default: $0.16/kWh (ComEd & Ameren average)

Utility Rate Escalator: 4.5% per year

Conservative (2%)Historical Average (6%)Aggressive (10%)

How We Calculate Your Savings

This calculator uses your custom utility rate (default $0.16/kWh for Illinois) with a 4.5% annual escalator compared to our fixed lease rate of $0.10/kWh (avg.) for 15 years. A low-escalator option is also available for a lower starting payment. After the 15-year lease, you can keep the system for a low fair-market buyout — then your electricity cost drops to near-zero for the remaining life of the panels (25+ years). Your actual savings may vary based on your specific usage patterns and system size.

More Solar Resources for Chesterfield

Solar IncentivesRECs, rebates & tax exemptions Electricity RatesRate trends & bill analysis Solar FAQCommon questions answered

Start Saving in Chesterfield

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Ameren Illinois rates projected to rise again next year. Lock in savings now.

Or call (618) 217-2001|Info@ltdsolarconsulting.com