Rohrdorfer Baustofftechnik at the Krieglach (Styria) site has been producing sustainable electricity with photovoltaics (PV) since July. The new system covers 182 square meters of the building's roof area and thus produces an output of 40 kWp.
It was installed by 10hoch4, an Austrian specialist for PV systems. Under the direction of Gernot Fohleitner, who is responsible for purchasing capital goods at Rohrdorfer, the construction time was just one month.
With the installed system capacity, 40 000 kWh of sustainable electricity can now be generated per year. Depending on the time of year, the Krieglach site can cover up to 70% of its own needs with self-generated PV electricity. The surplus energy is fed into the public power grid.
Rohrdorf's "Initiative 3033" for more energy self-sufficiency
In mid-2023, Rohrdorfer launched the "Initiative 3033" to achieve the highest possible degree of energy self-sufficiency. The goal: 30% of the electricity demand is to be produced in-house by 2033. Rohrdorfer is relying on a mix of photovoltaics, waste heat and geothermal energy. A total of 44 PV projects with 12.4 MW of peak output are currently being planned or have already been implemented. With the completion of the plant in Krieglach, Rohrdorfer Baustoffe Austria (RBA) has taken a small but important step towards energy self-sufficiency.
Krieglach Central Laboratory
Rohrdorfer is the pioneer of the Austrian ready-mixed concrete industry and is committed to innovation. For this reason, a technology centre was created at the Krieglach site, which forms the basis for technological developments in application technology and the platform for innovation processes and optimisation. All tests that cannot take place in the regional laboratories due to technical and personnel resources are carried out in the central laboratory in Krieglach.
On the way to climate-neutral building material production, research and development at the Krieglach site are essential, as lower-CO2 recipes require individually adapted additives to ensure consistent quality.
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