Solar Installers in Illinois
Compare top-rated solar companies in Illinois. Average cost: $2.86/W · 4.2 peak sun hours · 17.69¢/kWh electricity rate.
Get Free Illinois Solar Quote →Solar Energy in Illinois: Complete Guide
Illinois is one of the best states in the nation for residential solar energy. With an average electricity rate of 17.69 cents per kilowatt-hour and 4.2 peak sun hours per day, homeowners across Illinois can generate significant energy savings by going solar. The average 8kW solar system in Illinois costs $22,880 before incentives and $16,016 after the 30% federal tax credit.
An 8kW system in Illinois produces approximately 12,264 kWh per year — enough to offset most or all of a typical household's electricity consumption. At current electricity rates, that translates to annual savings of approximately $2,170, with a payback period of around 8 years.
Illinois's net metering policy is classified as full retail rate, which means homeowners receive full retail rate credit for excess energy sent to the grid — maximizing the financial return on solar investment. The state has a Renewable Portfolio Standard requiring 25% renewable energy, which supports continued solar growth.
Illinois Solar Cost Breakdown
| System Size | Before Incentives | After 30% ITC |
|---|---|---|
| 5 kW | $14,300 | $10,010 |
| 8 kW | $22,880 | $16,016 |
| 12 kW | $34,320 | $24,024 |
Illinois Solar Incentives
Illinois Shines provides Solar Renewable Energy Credits (SRECs) to residential solar owners for 15 years. Credits are typically assigned upfront to reduce installation costs.
Available to all Illinois homeowners through 2032. For a $22,880 system, this means a $6,864 tax credit.
Illinois exempts solar installations from property tax assessments, meaning your home value increases without raising your property taxes. Over a 25-year period, the typical Illinois homeowner saves $38,222 with solar — making it one of the best long-term investments available for your home.
Utilities in Illinois
Solar by County in Illinois
Top Cities for Solar in Illinois
Top Solar Installers in Illinois
Illinois Solar FAQ
How much do solar panels cost in Illinois?▼
The average cost of solar panels in Illinois is $2.86 per watt before incentives. For a typical 8kW system, that's $22,880 before the 30% federal tax credit, or $16,016 after. Actual costs vary based on your roof, equipment choice, and installer.
How much can I save with solar in Illinois?▼
Illinois homeowners with an 8kW solar system can save an estimated $38,222 over 25 years. With an average electricity rate of 17.69¢/kWh and 4.2 peak sun hours per day, solar is a strong investment in Illinois. The average payback period is 8 years.
Does Illinois have net metering?▼
Illinois offers full retail rate net metering. This means you receive full retail rate credit for excess solar energy sent back to the grid, maximizing your savings.
What solar incentives are available in Illinois?▼
Illinois homeowners can take advantage of the 30% federal solar Investment Tax Credit (ITC) through 2032. The state also has: IL Shines SREC program. Solar installations are exempt from property tax increases.
How many peak sun hours does Illinois get?▼
Illinois averages 4.2 peak sun hours per day annually. This means an 8kW solar system in Illinois would produce approximately 12,264 kWh per year. Peak sun hours vary by season and specific location within the state.
Is solar worth it in Illinois?▼
Yes, solar is worth it for most homeowners in Illinois. With a 8-year average payback period and 25+ year panel lifespan, you'll enjoy 17+ years of essentially free electricity after your system pays for itself. The combination of 17.69¢/kWh electricity rates, 4.2 peak sun hours, and available incentives makes Illinois a great state for solar.
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Quick Illinois Solar Facts
- ☀️ Peak Sun Hours: 4.2h/day
- 💡 Electricity Rate: 17.69¢/kWh
- 💰 Cost per Watt: $2.86
- 📊 Net Metering: Full Retail Rate
- 🔋 Payback Period: 8 years
- 🌱 RPS Goal: 25%
- 🏠 Property Tax: Exempt