Ritter Solar

Ritter Solar has built a small but legitimate residential solar PV practice in southeastern South Dakota, headquartered at 214 Linden Avenue in Vermillion. The company is led by Brad Ritter, who has taken the step of becoming personally NABCEP certified by the North American Board of Certified Energy Practitioners, a credential the company explicitly markets on its website. NABCEP certification is the recognized gold standard for residential solar installation professionals and is uncommon among installers in the South Dakota market, where state licensing requires only an electrical contractor's license to perform solar work. What stood out to our research team is the focus and discipline of the operation. Ritter Solar specializes specifically in residential solar installations, offering both grid-tied and off-grid systems with battery storage rather than scattering across HVAC, roofing, or general electrical work. They handle system design, permitting, and installation in-house, and the company provides a two-year workmanship guarantee alongside industry-standard manufacturer warranties on panels and inverters. Prospective customers should set their expectations appropriately. Ritter Solar is a small regional installer rather than a high-volume operator, and that has trade-offs in both directions. The upside is direct access to the owner-installer, a credential set that exceeds most competitors in the state, and a service area that includes Vermillion, Sioux Falls, Yankton, and the eastern South Dakota corridor where solar adoption has historically been thin. The downside is a comparatively small review base on third-party platforms like Google and SolarReviews compared with the higher-volume regional installers in Iowa, Minnesota, and Nebraska that cross into the state. Buyers should ask for in-state references on completed systems, confirm panel and inverter brand availability for their specific project, and verify timeline expectations during the South Dakota winter installation season when daylight and weather constrain crew productivity. With a composite score of 69.5 out of 100, Ritter Solar holds the second-ranked position in South Dakota for 2026.