
Swiss manufacturer of building-integrated solar systems: solar roofs, facades, railings and overhead installations.

3S Swiss Solar Solutions AG
Gwatt/Thun (Headquarters) · WorbNew on Amplifa
About 3S Swiss Solar Solutions
3S Swiss Solar Solutions AG, headquartered in Gwatt/Thun, develops and produces building-integrated photovoltaic systems (BIPV) for energy-producing building envelopes. The portfolio includes the MegaSlate® solar roof system as well as TeraSlate, solar facades, solar railings, overhead installations, and hybrid and flat-roof systems; in addition, mounting systems, PV and SW snow guards and fall protection, thermal collectors and monitoring systems are manufactured. The solar modules are available in various dimensions and colors, are integrated directly into roofs, facades, balcony railings or overhead structures, and are manufactured to Swiss environmental standards. The systems are distributed via specialized trade partners such as installers, roofers, architects and specialist planners; in addition, the company offers system planning, system contracting as well as service and maintenance. Reference projects include, among others, the solar facade of the Scex Rouge mountain station on Glacier 3000, the Autohotel P791 The Car Residence in Belp, the Altes Tramdepot Bern, the Hotel Maison Hornberg and the solar housing development Wasserwis in Ermatingen. In 2024, the company founded subsidiaries 3S Swiss Solar Solutions Germany GmbH and 3S Swiss Solar Solutions Austria to expand in the DACH region.
- Site
- Gwatt/Thun
- Processes
- Production of building-integrated solar systems (BIPV modules), Manufacture of solar roof systems (MegaSlate®, TeraSlate), Manufacture of solar facades, Manufacture of hybrid and flat-roof systems, Manufacture of PV/SW mounting systems, Manufacture of thermal collectors (solar thermal), Monitoring systems / measurement and monitoring, System planning, contracting, service and maintenance
- Materials
- Wood (timber construction, ecological building materials with integrated solar technology), Building-integrated photovoltaic modules, MegaSlate® solar roof system, TeraSlate solar roof system
- Founded
- 2001
- Employees
- 51–200
- Industries
- Photovoltaics, BIPV (Building-integrated photovoltaics), Solar thermal, Architecture/Construction
- 01
Development
- 02
Module production
- 03
System integration (roof, facade, railing, overhead)
- 04
Distribution via trade partners
- 05
System planning
- 06
Installation
- 07
Monitoring
- 08
Service and maintenance
Materials & Processes
Building-integrated photovoltaic modules
Solar modules available in various dimensions and colors for integration into roofs, facades, railings and overhead installations.
MegaSlate® solar roof system
Building-integrated solar roof system for roof-integrated PV installations.
TeraSlate solar roof system
Another solar roof system for roof-integrated photovoltaics.
Locations

Gwatt/Thun
CHHeadquarters, production
- Materials
- BIPV modules, MegaSlate®, TeraSlate
Worb
CHSite/production
- Materials
- BIPV modules, MegaSlate®, TeraSlate
Systems & Components






Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Production of building-integrated solar systems (BIPV modules)Assembly | – | – | – | – | – |
| Manufacture of solar roof systems (MegaSlate®, TeraSlate)Assembly | – | – | – | – | – |
| Manufacture of solar facadesAssembly | – | – | – | – | – |
| Manufacture of hybrid and flat-roof systemsAssembly | – | – | – | – | – |
| Manufacture of PV/SW mounting systemsAssembly | – | – | – | – | – |
| Manufacture of thermal collectors (solar thermal)Assembly | – | – | – | – | – |
| Monitoring systems / measurement and monitoringEngineering | – | – | – | – | – |
| System planning, contracting, service and maintenanceEngineering | – | – | – | – | – |
Additional services
Reference customers
History
- 2001
Company founding
- 2024
Founding of the subsidiaries 3S Swiss Solar Solutions Germany GmbH (CEO: Philipp Molnár) and 3S Swiss Solar Solutions Austria (Thomas Tschiltsch) to expand in the DACH region