Be Energy Efficient Schools – wien.ORF.at

Be Energy Efficient Schools - wien.ORF.at

basic infrastructure

In times of high energy costs, many people strive to reduce consumption. The Bundesimmobiliengesellschaft (BIG) is currently focusing on schools. Photovoltaic and renewable heating systems are to be installed there.

HLW 19 is considered a pilot project at Strasserges in Vienna-Döbling. The 1960s building is showing its age. A thermal refurbishment was carried out in the 1990s, but oil heating with two boilers has survived all renovations so far. A kettle was found some time ago. When it became clear at the beginning of the year that the other player would no longer play with both, an alternative was sought.

How to make the school of tomorrow?

heat pump and pellet stove for heat

As the owner, BIG planned an energy-efficient solution. Now the heat pump, pellet boiler and heat storage have been combined with a photovoltaic system that gives an output of 180 kWp. The heat generation system is partially powered with local electricity from the PV system. In future, these technologies are to be implemented uniformly in all appropriate new construction and refurbishment measures.

ORF

HLW 19 should be considered a pilot school – for existing schools throughout Austria

“As a result, we achieve a 95 percent CO2 savings compared to older oil heating systems,” says Edith Claesel-Tauchner, who is responsible for schools at BIG. In Vienna, the switch to CO2-free systems is already well advanced, Klesl-Tauchner says, as many buildings are connected to district heating. While it is not yet free of fossil fuels in production, it should be by 2040.

no money for other purchases

Conversion to HLW in dobling has a positive side effect. The energy requirements of the school are high. Especially in the training kitchen consumes a lot of energy. Director Erich Rehberger said the current high energy costs made other purchases at the school difficult. “For the year 2022 I can very clearly say that the budget that I have here at home has been used for oil and electricity. I ran out of money for all the school supplies and I hope we can buy new computers in 2023.”

But heat isn’t the only major issue in renewables. Climate change also increases the demand for cooling in the summer months. “We have a research project going on on this topic,” Kessel-Tauchner says. The question is which ventilation systems make sense and how can they be installed in existing schools. An important point is the need for electricity. Therefore, there should be a steady increase in the number of photovoltaic systems in schools.

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