Sunig

Founded in 2018, Sunig is a private headquartered in Frauenfeld, Switzerland with approximately 10-50 employees specializing in Solar, Energy Storage.

Sunig GmbH is a Swiss-based solar energy company founded in 2018 with headquarters in Frauenfeld. The company specializes in designing and installing photovoltaic systems for single-family homes, multi-family buildings, agriculture, and commercial properties. Sunig offers multiple service models: full turnkey installation, supervised self-build projects where clients provide labor under professional guidance (saving up to 40%), and shared solar arrangements for community energy consumption. The company operates three construction teams and provides comprehensive services including planning, material procurement, installation, battery storage integration, energy management systems, real-time monitoring via mobile app, and ongoing maintenance. Sunig has realized over 60 solar installations generating enough electricity for approximately 1,600 people. The company holds installation authorization per ESTI Article 14 and is a member of leading industry associations including VESE and Sonnenergie (Swiss solar energy association). Services extend to collective self-consumption arrangements (ZEV) and upcoming local electricity communities (LEG). The team emphasizes flexible, community-focused work culture and offers weekend solar building courses.