EURO 2024 Copenhagen
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1232. Reduction of Fossil Fuel Usage for Hydrogen Production in District Heating Networks by Implementing PV Energy

Invited abstract in session TC-19: OR in Heating Systems, stream OR in Energy.

Tuesday, 12:30-14:00
Room: 44 (building: 116)

Authors (first author is the speaker)

1. Karina Medwenitsch
Forschung Burgenland GmbH
2. Lukas Gnam
Fachhochschule Burgenland GmbH
3. Markus Schindler
Forschung Burgenland GmbH

Abstract

In order to achieve the goals of the European Green Deal set by the European Commission, a reduction of the usage of fossil fuels is necessary. This also applies to the sector of district heating, where gas is still widely used, specifically in Austria.
The district heating network in Neusiedl am See in the Austrian Burgenland region comprises a gas boiler, a biomass plant as well as four high-performance heat pumps, which are fueled by energy generated in the local wind park, as heat production components. Although the share of gas used for the heat production is already low with only a few per cent, depending on the current electricity prices, the gas boiler is still necessary for the operation of the district heating network. Additionally, an electrolyzer was integrated into the system in 2023 in order to use the surplus energy from the wind park for the production of hydrogen. However, when operating the district heating network most economically, the hydrogen production leads to a significant increase in the gas share, with the percentages ranging between 17 and 21 %.
The objective of this work is to reduce the usage of gas in the network while also operating the electrolyzer by implementing additional energy from a hypothetical PV plant nearby. The results show that the gas share is crucially reduced to a range of 4 to 10 %.

Keywords

Status: accepted

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