BETELEC SA – Engineering, Design, and Project Management in Electrical Installations BETELEC SA is a company specializing in engineering, design, and project management in the field of electrical installations. As experts in energy solutions and building security, we support our clients throughout their projects, from initial studies to implementation, including project supervision and infrastructure operation. As leaders in electrical engineering consulting, we are committed to delivering high-performance, innovative, and sustainable solutions tailored to current and future requirements. Our Areas of Expertise: • Engineering and consulting • Project design and management • Energy solutions and building security BETELEC SA operates five branches, all located in the Romandy region. Our headquarters has been in Lausanne since 1976. The four other branches are in Fribourg (since 2002), Neuchâtel (since 2002), Geneva (since 2005), and Martigny (since 2012). We have been ISO 9001 “Quality” certified since June 3, 1998. BETELEC SA also integrates environmental considerations for sustainable development, earning the ISO 14001 certification on December 15, 2002. Rely on our expertise for tailored support and optimized installations.

GTS SA is a Swiss photovoltaic company operating throughout Switzerland , including Vaud , Geneva , Valais , Fribourg , Neuchâtel , Jura , Bern , Zurich and Central Switzerland . With more than 20 years of experience in solar technology , GTS SA supports businesses , public authorities and private clients in the design , installation and optimization of turnkey photovoltaic systems . As a leading solar energy expert in Switzerland , GTS SA has in-depth knowledge of Swiss energy regulations , cantonal requirements , solar subsidies and self-consumption models . Every solar installation in Switzerland is carefully engineered to ensure maximum solar power generation , long-term profitability and high-performance photovoltaic components . GTS SA develops turnkey photovoltaic power plants for industrial rooftops , commercial buildings , residential properties , private houses and agricultural facilities . Advanced solar engineering allows efficient energy self-consumption , grid feed-in and reduced electricity costs . The company also provides complete solar energy solutions , including solar battery storage , heat pumps combined with photovoltaics , solar carports , solar lighting systems , EV charging stations , solar water heaters and energy monitoring systems . GTS SA stands for quality , performance and sustainable renewable energy across Switzerland.