How Much Can Solar Save in Monticello?

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

$148

Current Bill/mo

$123

Est. Lease + Battery

25+ yrs

Years of Pure Profit

$49,861

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

$148

Annual Cost

$1,776

25-Year Cost (No Solar)

$97,439

What Solar Savings Look Like in Monticello

With 78.4% single-family homes and 80.8% homeownership, Monticello offers a favorable environment for residential solar. Nearly half of homes pre-date 1980, requiring roof condition assessments. A small percentage of residents working from home may align with daytime energy use.

Your Solar Investment

6.5 kW System

$17,875

$7,925

After All IL Incentives

DG Rebate ($300/kW)-$1,950

Illinois Shines RECs (lump sum, ~18 mo)-$8,000

With vs Without Solar in Monticello

Metric	Without Solar	With Solar
Monthly Cost	$148/mo	$108/mo (loan)
Monthly Cash Flow	-$0 (all to utility)	+$14/mo
5-Year Cost	$9,590	$6,480
25-Year Cost	$97,439	$47,578
Rate Control	None — utility sets rates	As low as $0.10/kWh, fixed for 15 years
Home Value Impact	None	+$15,000–$25,000 (tax-exempt)

Your Solar Savings Over Time

Estimated 25-Year Total Savings

$49,861

Without Solar

With Solar

Year 1Profit Starts Here

$1,776

$1,611

Year 5

$10,011

$347

Year 10

$23,409

$9,604

Year 15

$41,338

$20,161

Year 20

$65,331

$32,564

Year 25

$97,439

$47,578

Year	Without Solar	With Solar	Cumulative Savings
Year 1Profit Starts	$1,776	$1,611	$165
Year 2	$3,659	-$4,750	$8,409
Year 3	$5,654	-$3,083	$8,737
Year 4	$7,769	-$1,385	$9,154
Year 5	$10,011	$347	$9,664
Year 6	$12,388	$2,115	$10,273
Year 7	$14,907	$3,922	$10,986
Year 8	$17,578	$5,770	$11,808
Year 9	$20,409	$7,663	$12,745
Year 10	$23,409	$9,604	$13,805
Year 11	$26,590	$11,597	$14,993
Year 12	$29,961	$13,645	$16,316
Year 13	$33,535	$15,752	$17,783
Year 14	$37,323	$17,922	$19,400
Year 15	$41,338	$20,161	$21,177
Year 16	$45,594	$22,473	$23,121
Year 17	$50,106	$24,864	$25,242
Year 18	$54,888	$27,338	$27,550
Year 19	$59,958	$29,903	$30,055
Year 20	$65,331	$32,564	$32,767
Year 21	$71,027	$35,329	$35,698
Year 22	$77,065	$38,205	$38,860
Year 23	$83,465	$41,199	$42,265
Year 24	$90,248	$44,321	$45,928
Year 25	$97,439	$47,578	$49,861

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 as low as $0.10/kWh plus battery backup 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 Monticello

City Solar GuideOverview, tools & nearby installers Solar FAQCommon questions answered

Statewide Solar Guides That Apply in Monticello

Local solar numbers depend on your utility, Illinois incentive rules, and state program eligibility.

Ameren Illinois rate guideCurrent Ameren Illinois rates and solar comparison Illinois Shines REC guideState REC incentives available in Monticello Illinois Solar for AllNo-cost solar options for income-qualified homes Illinois REC calculatorEstimate REC value by system size and utility

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We provide solar consulting to homeowners throughout Illinois

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Start Saving in Monticello

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

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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