Renewable energy jobs at WI SOLAR GMBH

WI SOLAR boasts over 15 years of experience in planning and implementing high-quality rooftop photovoltaic systems for businesses, focusing on commercial rooftop systems, green roofs, ground-mounted systems, battery storage, and charging infrastructure (source: wi-solar.de). The company also provides comprehensive operational support through monitoring, service, and maintenance (source: wi-solar.de). According to ENF Solar, WI SOLAR operates in Germany and delivers both smaller systems and installations exceeding 1 MWp capacity, including battery storage (source: enfsolar.com). The Wi INVEST division installs and operates solar systems on company roofs for clients who prefer not to make their own investments (source: stadt-kaisersesch.de).

In October 2025, WI SOLAR and TESVOLT announced an enhanced collaboration focusing on the commercial use of renewable energies with an emphasis on storage solutions, highlighting WI SOLAR’s active role in the storage-supported photovoltaic market (source: pv-magazine.de). In 2024, the company continued to be led by managing directors Andre Steffens and Sven Endris and was described as a specialist in PV rooftop systems for commercial, retail, industrial, and logistics sectors (source: wi-solar.de).

WI SOLAR offers a variety of roles in technical planning, project management, installation, service, as well as commercial functions, reflecting the company’s specialized EPC and service model (source: wi-solar.de). The workforce operates both at the headquarters in Kaisersesch and at various project sites across Germany (source: kununu.com). The company values a technically oriented corporate culture with a close-knit team of engineers, TÜV-certified experts, service technicians, and master craftsmen (source: wi-solar.de). Documented benefits include a 38.5-hour workweek, 30 days of vacation, company pension scheme, employee events, meal subsidies, sports programs, regular training, and free beverages (source: kununu.com).