Setting the course for the energy transition - calorific value reconstruction
Systems for calorific value reconstruction in the distribution network create transparency
With the integration of renewable gases, the decentralized feed-in of biomethane and hydrogen and thus different gas qualities into the gas grid will increase. The recent increase in imports of LNG (liquefied natural gas) is also contributing to this.
The calorific values of natural gas and biomethane can differ significantly depending on their origin and production, with Hydrogen also has a considerably lower calorific value per cubic metre - around a third of methane. The different feed-in locations therefore result in different individual calorific values in the respective parts of the gas network.
The systems for determining the calorific value make it possible to determine the exact calorific value for each extraction point in the gas network and thus guarantee the problem-free feed-in of biomethane and hydrogen into the gas network. In accordance with the provisions of the Gas System Charges Ordinance, these calorific values determined will also be used to bill end customers for the quantity of energy since 1 January 2024. Based on the applicable technical rules of ÖVGW guideline G O 110, all exit points are grouped into individual calorific value districts. The actual calorific values for each grid area are published in the AGGM Data Monitor.
AGGM has been calculating calorific values for distribution system operators in the Austrian gas network at network level 1 since October 1, 2022. AGGM offers the calculation of calorific values as a non-discriminatory service to all system operators, including for network levels 2 and 3. Together with two distribution system operators, AGGM has already successfully implemented a calorific value determination system for network levels 2 and 3. This creates the necessary transparency for consumers on their bills.
Biomethane belongs in the grid!
With inGRID - the interactive feed-in map for renewable gases - we have made it transparent where biomethane can be fed into the gas grid most efficiently.
inGRID feed-in map
Overview of optimal and efficient feed-in points for renewable gases.
open inGRID