How Much Can Solar Save in Oak Lawn?

Real numbers based on current ComEd rates and Illinois incentives.

$171

Current Bill/mo

$153

Est. Lease + Battery

25+ yrs

Years of Pure Profit

$58,770

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

$171

Annual Cost

$2,052

25-Year Cost (No Solar)

$112,582

Your Solar Investment

7.5 kW System

$20,625

$8,687

After All IL Incentives

DG Rebate ($300/kW)-$2,250

Illinois Shines RECs (lump sum, ~18 mo)-$9,688

With vs Without Solar in Oak Lawn

Metric	Without Solar	With Solar
Monthly Cost	$171/mo	$124/mo (loan)
Monthly Cash Flow	-$0 (all to utility)	+$17/mo
5-Year Cost	$11,081	$7,440
25-Year Cost	$112,582	$53,812
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

$58,770

Without Solar

With Solar

Year 1Profit Starts Here

$2,052

$1,847

Year 5

$11,567

-$127

Year 10

$27,047

$10,464

Year 15

$47,762

$22,527

Year 20

$75,484

$36,686

Year 25

$112,582

$53,812

Year	Without Solar	With Solar	Cumulative Savings
Year 1Profit Starts	$2,052	$1,847	$205
Year 2	$4,227	-$5,964	$10,191
Year 3	$6,533	-$4,055	$10,587
Year 4	$8,977	-$2,109	$11,086
Year 5	$11,567	-$127	$11,694
Year 6	$14,313	$1,897	$12,416
Year 7	$17,224	$3,965	$13,259
Year 8	$20,310	$6,079	$14,230
Year 9	$23,580	$8,245	$15,336
Year 10	$27,047	$10,464	$16,583
Year 11	$30,722	$12,742	$17,980
Year 12	$34,617	$15,083	$19,535
Year 13	$38,746	$17,490	$21,256
Year 14	$43,123	$19,970	$23,153
Year 15	$47,762	$22,527	$25,235
Year 16	$52,680	$25,168	$27,512
Year 17	$57,893	$27,897	$29,996
Year 18	$63,418	$30,722	$32,696
Year 19	$69,276	$33,649	$35,626
Year 20	$75,484	$36,686	$38,798
Year 21	$82,065	$39,841	$42,224
Year 22	$89,041	$43,121	$45,920
Year 23	$96,435	$46,537	$49,898
Year 24	$104,274	$50,097	$54,176
Year 25	$112,582	$53,812	$58,770

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 Oak Lawn

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

Start Saving in Oak Lawn

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