Güssing Energy Technologies (GET) is a non-profit R&D institute, based in the south-east part of Austria. They focus is on Renewable Energy, especially district heating up to the 5th generation.

In Hypergryd they are in charge of the data collection from DHN providers, development of the exergoeconomic optimization tool and modelling.

Christian Doczekal is an expert in the energy sector with a particular focus on district heating networks. His work at GET involves optimizing district heating networks. He supports several district heating network operators in Austria in making their systems more efficient. He also lectures and develops tools for optimizing district heating networks. These tools help operators better manage their networks and increase energy efficiency.