Berkeley Lumber Company, a high-demand lumber and building materials facility in St. Louis, MO, relies heavily on electricity to support daily operations and production demands. To reduce exposure to rising utility costs, the company invested in a commercial rooftop solar energy system.
Artisun Solar designed and installed a 74.58 kW (DC) rooftop solar system featuring 226 solar panels tailored to the facility’s energy usage profile. The system now offsets approximately 96.77% of the site’s electricity consumption.
In the first year of operation, the system generated approximately $7,567 in electricity savings, with a projected payback period of just 2.8 years. The project’s strong financial performance was further enhanced through federal solar tax credits, Ameren utility rebates, and accelerated depreciation incentives, improving overall ROI and shortening the investment recovery timeline.
This commercial solar installation demonstrates how St. Louis manufacturers and industrial facilities can achieve near-complete energy offset, reduce operating expenses, and gain long-term protection from volatile utility pricing through rooftop solar.



