PV and Storage Solution for Energy-Efficient Food Production

In February 2026, the installation of the 89 kWp photovoltaic system on the roofs of Linthmais AG / Bruhin-Mühle in Schübelbach was successfully completed. Linthmais AG is a traditional family business and one of Switzerland’s leading producers of high-quality maize products – from classic polenta and rivel flour to innovative snacks such as tortilla chips and maize puffs, as well as pure maize germ oil. The company now sources the majority of its required electricity from its own environmentally friendly production. The system saves approximately 10–12 tonnes of CO₂ emissions annually. Additionally, a modern battery storage system with 100 kWh capacity was installed: For Linthmais AG in Schübelbach, a high-performance SAJ CHS2 all-in-one battery system with 100 kWh usable storage capacity has been installed. This integrated hybrid energy storage system combines a high-performance hybrid inverter, LiFePO₄ batteries (safe and durable) and intelligent energy management in a single weatherproof housing (IP55/IP66) – ideal for outdoor use in industrial environments. The storage system is primarily designed for maximum self-consumption optimisation to make optimal use of the self-generated solar power. Thanks to DC-coupled PV and battery sides, the system achieves particularly high efficiency. The main advantages of the SAJ CHS2 all-in-one system at a glance:

• Plug-and-play design – simplified and faster installation, lower assembly and commissioning costs

• High safety – LiFePO₄ technology with excellent thermal stability, integrated BMS, AFCI fire protection and multi-layer monitoring

• Maximum flexibility – scalable (up to 10 units in parallel), 6 MPPTs with up to 200% DC overvoltage for optimal PV utilisation

• High reliability and longevity – robust outdoor suitability, long cycle life and low maintenance requirements

• Intelligent control – smart optimisation of consumption, storage and grid interaction for maximum cost savings

The overall project is highly economical with a payback period of well under 7 years. This enables the traditional maize processor to sustainably reduce its electricity costs, massively increase the self-consumption share of solar power and noticeably improve the energy autonomy of the Schübelbach site – a forward-looking step for regional value creation and climate protection.