HELIOS – SOLAR DISTRICT HEATING
SOLID planned and built the second and third construction phase of the project Helios in Graz
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SOLID planned and built the second and third construction phase of the project Helios in Graz
Mürzzuschlag is a town of 8,500 inhabitants in a mountain region between Vienna and Graz. It’s district heating system used to be fired by natural gas and biomass boilers. As both are scarce ressources, the integration of solar thermal was very much appreciated.
The installed heat storage, with a capacity of 165 m³, results in an overall efficiency increase via energy management.
Energetika Vransko, the local utility, wanted to increase their green energy supply to the district heating system. The signs were good – especially lucrative funding instruments removed all doubts in the investment of this first of its kind solar district heating system.
The village of Liggeringen is in the hills in the vincinity of Radolfzell at Lake Constance in Southern Germany, close to the Swiss border. There are mainly single family houses, but still it was viable to build a new district heating grid. As the utility
In order to get one step closer to becoming the solar capital of Europe, the City of Graz and the urban energy utility company Energy Graz decided to work with SOLID to develop this flagship project on the grounds of the water works Andritz, the
The housing estate Berliner Ring with its high rise buildings was constructed in the 1960s. The over 700 flats are owned by individual owners and not by a single company. This was a special challenge for installing the solar system in 2004–2006, as each owner
The solar thermal plant, with in total 790 m²/8,500 ft², supports the energy supply of domestic hot water system, heating system, air-conditioning system (via absorption chiller) and feeds solar heat into the existing district heating grid.
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