Generational change strengthens commitment to energy transition

Reto Trittibach is the new owner and managing director of INES Energieplanung. The company is striving for continuity with the aim of providing environmentally friendly solutions for energy supply. André Joosten is his deputy.

Bern, February 2026

Reto Trittibach is the new owner and managing director of INES Energieplanung GmbH. According to a statement, André Joosten will be his deputy. With this new appointment, the Bern-based provider of energy supply solutions, founded 14 years ago, aims to maintain continuity.

The aim of INES Energieplanung is to “support the energy transition with expertise and to the best of its ability”. Energy concepts for sites and district heating projects are developed. According to the company, INES contributes its expertise not only to the planning and construction of energy plants, but also to plant concepts. INES also acts as an energy consultant for the city of Bern.

INES operates in the city and metropolitan area of Bern. Its main customers and cooperation partners include Marzili Wärmeverbund AG and the city of Bern.

Founder Bruno Liesch shaped INES with a focus on sustainable energy solutions, heating networks and future-oriented energy planning. According to the announcement, he will continue to contribute his experience in project development on a part-time basis until the end of 2026.

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