Solar Installation in St. Louis, Missouri

Cox Solar Solutions designs and installs solar for homes and businesses in St. Louis City, St. Louis County, St. Charles County, and Jefferson County. Nearly every address in this area is served by Ameren Missouri.

Many St. Louis homes are older brick houses with complex roofs. We check structure, roof age, and shading before recommending a layout, and we can replace the roof first through Cox Roofing & Restoration.

Ameren Missouri nets your solar production against your usage each billing period. Excess production is credited at Ameren's avoided-fuel-cost rate (currently 3.84¢/kWh in summer and 3.39¢/kWh in winter), well below what you pay for power. That means the best St. Louis systems are sized to offset your own usage rather than to export power.

Missouri has no state solar rebate, Ameren Missouri's solar rebate ended in 2023, and the federal residential solar tax credit ended for systems installed after 2025. Savings come from the electricity you no longer buy. A battery can raise those savings by letting you use more of your own solar in the evening.

Panels stay on a roof for 25 years or more. If your roof is near the end of its life, we can replace it and install solar as one coordinated project, which avoids paying to remove and reinstall the array later.