HIAG Immobilien Holding AG and aventron AG set up the joint venture HIAG Solar in order to increase solar power production on the properties in HIAG's real estate portfolio in the long term. HIAG holds 49% and aventron 51% of HIAG Solar AG. With a planned module surface of approximately 65,000 m2 and an output of around 10 MWp, HIAG Solar intends to become a major solar power producer in Switzerland in the mid-term and to successively increase its production capacity.

The company is striving for an annual power production of around 10 million kWh and CO2 equivalent savings of around 4.2 million tonnes. The first four plants are already in the planning stage and are expected to start power production in 2021 and 2022.