SAK implements second multi-energy system
The St.Gallisch-Appenzellische Kraftwerke AG (SAK) is setting up its second multi-energy system in a residential development in Uzwil SG. It combines photovoltaics, heat pumps, charging stations for electric vehicles and a fully automatic billing system for electricity, heat and water.
In the Park 2022 development in Uzwil, SAK is realizing “its second ultra-modern multi-energy system”, the group of companies, which specializes in energy supply, informed in a press release . With the system consisting of photovoltaic and heat pump systems, charging stations for electric vehicles and a fully automatic billing system for electricity, water and heat, the three buildings in the superstructure meet “all the requirements for sustainable living in accordance with the federal government’s Energy Strategy 2050,” it says there. In Park 2022, the three trades electricity, heat and water are coordinated across all three buildings in a smart microgrid system.
Around 300 square meters of photovoltaic modules with a total output of 48 kilowatts peak were installed on the roofs of the buildings, explains SAK. The heat pumps installed in the basements of the buildings together achieve a peak output of 87 kilowatts for heating and hot water. The charging stations set up are equipped with intelligent load management. The residents of the superstructure can also use the smart meters used to measure consumption to track their meter readings and control their consumption.
“Here in Uzwil, we were able to exploit and deepen our extensive know-how in all aspects of sustainable energy solutions for the second time,” Adriano Tramèr, Head of Production and Energy Solutions SAK, is quoted in the press release. “With the intelligent central control, we optimize energy production and energy consumption between the three buildings to the maximum and significantly reduce CO2 emissions.”