Company
Energy with conviction


For over 30 years, TST has been your reliable and professional partner in renewable energy solutions.
Whether it’s solar modules, battery storage, or heating with electricity—we offer a comprehensive range of services tailored precisely to your individual needs.
Highest quality, full-service support, and maximum cost-effectiveness. We rely on innovation and creativity.
Together with our strong team of experienced employees, we develop solutions that deliver across the board while protecting the climate and the environment.
From premium photovoltaic components and solar collectors to complete system packages—we provide expert, end-to-end advice and professional competence.
So you too can become energy independent. And with more than 100 MW of installed solar modules for customer systems and our own installations, we know exactly what we’re talking about.
Paths are made by walking.
Kafka
Our story:
- 1985 Attended a lecture by Dr. Bölkow on the greenhouse effect & climate change
- 1987 Company founded:
“T.S.T. Solartechnik” – focus: solar thermal systems - 1993 Built a net-zero energy house
- 1999 Built the first PV system
- 2001 Pioneer company: operating solar power plants on leased rooftops
- 2008 Built the eco-friendly commercial building + PV system in Schönau
Business areas
- Energy storage
- Off-grid solutions with multiple energy sources
- E-mobility
- International projects
- Supporting innovation by sponsoring forward-looking projects
PV and renewable energy technology
- Photovoltaic energy storage
- Self-consumption optimization
- PV for heat generation
- Combined heat and power plants (CHP)
- Energy concepts for commercial wholesale
- Trading
- Municipal energy storage systems
- Electrical and heating installation
Comprehensive service for the best results
Our formula for success is a combination of many years of experience and professional advice. No matter how big your project is, we make sure everything runs smoothly. From a single source. With the best results.
Our service for you
- Personal consultation based on your on-site conditions and development of a tailored solution
- Professional planning
- Online shops for photovoltaics and solar thermal
- Expertise in renewable energy combined with e-mobility

