How Much Can Solar Save in St. Charles?

Real numbers based on current ComEd rates and Illinois incentives.

$201

Current Bill/mo

$168

Est. Lease + Battery

25+ yrs

Years of Pure Profit

$69,216

25-Year Savings

What You're Paying Now

Without solar, here's what ComEd electricity will cost you over time at 6% annual rate increases.

Monthly Bill

$201

Annual Cost

$2,412

25-Year Cost (No Solar)

$132,333

Your Solar Investment

9 kW System

$24,750

$10,574

After All IL Incentives

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

Illinois Shines RECs (lump sum, ~18 mo)-$11,476

With vs Without Solar in St. Charles

Metric	Without Solar	With Solar
Monthly Cost	$201/mo	$149/mo (loan)
Monthly Cash Flow	-$0 (all to utility)	+$19/mo
5-Year Cost	$13,025	$8,940
25-Year Cost	$132,333	$63,117
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

$69,216

Without Solar

With Solar

Year 1Profit Starts Here

$2,412

$2,188

Year 5

$13,597

-$160

Year 10

$31,792

$12,335

Year 15

$56,142

$26,518

Year 20

$88,727

$43,109

Year 25

$132,333

$63,117

Year	Without Solar	With Solar	Cumulative Savings
Year 1Profit Starts	$2,412	$2,188	$224
Year 2	$4,969	-$7,065	$12,033
Year 3	$7,679	-$4,804	$12,483
Year 4	$10,552	-$2,504	$13,055
Year 5	$13,597	-$160	$13,756
Year 6	$16,824	$2,231	$14,593
Year 7	$20,246	$4,672	$15,574
Year 8	$23,873	$7,167	$16,706
Year 9	$27,717	$9,720	$17,998
Year 10	$31,792	$12,335	$19,458
Year 11	$36,112	$15,016	$21,095
Year 12	$40,690	$17,770	$22,920
Year 13	$45,544	$20,601	$24,943
Year 14	$50,688	$23,515	$27,173
Year 15	$56,142	$26,518	$29,624
Year 16	$61,922	$29,616	$32,306
Year 17	$68,049	$32,816	$35,233
Year 18	$74,544	$36,127	$38,418
Year 19	$81,429	$39,555	$41,874
Year 20	$88,727	$43,109	$45,617
Year 21	$96,462	$46,799	$49,663
Year 22	$104,662	$50,634	$54,028
Year 23	$113,354	$54,624	$58,730
Year 24	$122,567	$58,781	$63,786
Year 25	$132,333	$63,117	$69,216

Calculate YOUR Savings

Enter your actual ComEd 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 St. Charles

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

Start Saving in St. Charles

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