Compare the highest-rated home solar professionals in Granite City, Illinois. All contractors are licensed, insured, and verified through our rigorous screening process.
** As one of the largest dedicated residential solar companies in the nation, Sunrun offers significant brand recognition and a strong focus on solar leasing and Power Purchase Agreements (PPAs). This provides a low-upfront-cost path to solar for many homeowners. They have a network of local installation crews and offer comprehensive monitoring and maintenance services.
Overview of home solar services in the area.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Granite City regulations and climate
Get answers to common questions about home solar services in Granite City, Illinois.
For a typical 6-8 kW system in Granite City, the gross cost before incentives is usually between $18,000 and $28,000. Crucially, you can reduce this by 30% with the federal Investment Tax Credit (ITC). Illinois also offers a strong state incentive: the Illinois Shines program provides Solar Renewable Energy Credits (SRECs) that can be sold, typically adding a significant upfront discount or performance-based payment over 15 years, which local installers will help you secure.
Granite City's four-season climate means production peaks in sunny summers, but panels still generate significant power in cold, clear winter months. While summer has the most sun, panels operate more efficiently in cooler temperatures. Annual snowfall is moderate, and panels are installed at an angle to help snow slide off; any minor accumulation usually melts quickly and has a negligible impact on yearly energy production.
Prioritize installers licensed in Illinois with strong local experience in Granite City and Madison County, as they will be familiar with specific permitting, utility interconnection (Ameren Illinois), and local building codes. Check for certifications like NABCEP, read verified local reviews, and get multiple detailed quotes. A reputable local provider will handle everything from system design to securing your Illinois Shines credits and final inspections.
From contract to activation typically takes 2 to 4 months. The timeline includes system design, securing permits from the City of Granite City, approval from Ameren Illinois for interconnection, the physical installation (1-3 days), and final inspections. Seasonal factors can influence scheduling, with summer being a busier time for installers, so planning in spring or fall can sometimes lead to a quicker process.
Ameren Illinois offers full retail net metering, which is a major benefit. When your panels produce more electricity than your home uses, the excess is sent to the grid, and your meter runs backward, giving you a credit on your bill. These credits roll over month-to-month, allowing you to bank excess summer production to offset higher usage in less sunny months, like during winter heating season.