How Much Can Solar Save in Sandwich?

Real numbers based on current ComEd rates and Illinois incentives.

$162

Current Bill/mo

$150

Est. Lease + Battery

25+ yrs

Years of Pure Profit

$55,850

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

$162

Annual Cost

$1,944

25-Year Cost (No Solar)

$106,657

Your Solar Investment

7.5 kW System

$20,625

$9,001

After All IL Incentives

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

Illinois Shines RECs (lump sum, ~18 mo)-$9,374

With vs Without Solar in Sandwich

Metric	Without Solar	With Solar
Monthly Cost	$162/mo	$124/mo (loan)
Monthly Cash Flow	-$0 (all to utility)	+$13/mo
5-Year Cost	$10,498	$7,440
25-Year Cost	$106,657	$50,807
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

$55,850

Without Solar

With Solar

Year 1Profit Starts Here

$1,944

$1,790

Year 5

$10,959

-$136

Year 10

$25,623

$10,012

Year 15

$45,248

$21,471

Year 20

$71,511

$34,806

Year 25

$106,657

$50,807

Year	Without Solar	With Solar	Cumulative Savings
Year 1Profit Starts	$1,944	$1,790	$154
Year 2	$4,005	-$5,768	$9,772
Year 3	$6,189	-$3,922	$10,111
Year 4	$8,504	-$2,046	$10,550
Year 5	$10,959	-$136	$11,094
Year 6	$13,560	$1,810	$11,750
Year 7	$16,318	$3,795	$12,523
Year 8	$19,241	$5,821	$13,419
Year 9	$22,339	$7,893	$14,446
Year 10	$25,623	$10,012	$15,611
Year 11	$29,105	$12,184	$16,921
Year 12	$32,795	$14,411	$18,384
Year 13	$36,707	$16,699	$20,008
Year 14	$40,853	$19,051	$21,803
Year 15	$45,248	$21,471	$23,777
Year 16	$49,907	$23,967	$25,941
Year 17	$54,846	$26,542	$28,304
Year 18	$60,081	$29,202	$30,878
Year 19	$65,629	$31,955	$33,675
Year 20	$71,511	$34,806	$36,706
Year 21	$77,746	$37,762	$39,984
Year 22	$84,355	$40,832	$43,522
Year 23	$91,360	$44,024	$47,336
Year 24	$98,785	$47,345	$51,440
Year 25	$106,657	$50,807	$55,850

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 Sandwich

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

Start Saving in Sandwich

Get a free, personalized solar analysis based on your actual ComEd bill and roof. Lease or own — we'll find the best option.

✓ $0 down lease, competitive cash pricing, or Solar for All — your choice

Get Your $0 Down Quote

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

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