Power-to-Gas (PtG) technologies have the potential to compensate for the weather-related volatility of renewable energies. More specifically, PtG can be used to convert sustainable electricity into gas (green hydrogen or methane), so that the gas infrastructure is additionally available for the transport and storage of electricity from renewable sources. The TSCNET shareholder Amprion, one the four German transmission system operators (TSOs), and TenneT, the Dutch-German TSO, are taking the next important step towards implementing the two most powerful sector coupling projects currently underway in Germany: “hybridge” and “ELEMENT ONE”.
The respective gas transmission partners of Amprion and TenneT are Open Grid Europe for the “hybridge” project and Gasunie and Thyssengas for ELEMENT ONE. Both PTG plants are to convert up to 100MW of electrical power into gas. Their construction is planned at two different sites in the German federal state of Lower Saxony, each close to wind power generation centres and well-developed gas infrastructure.
The grid operators have submitted the necessary investment applications for both projects on 29 March to the Bundesnetzagentur (German Federal Network Agency). If the Agency gives the green light, ELEMENT ONE will be gradually operational by 2022 and hybridge will be fully functional by 2023. Dr. Klaus Kleinekorte, CTO at Amprion, comments on the application, that major PtG projects must now be pushed forward, “if we want to use PtG technology on a large scale in Germany in the 2030s”.
Amprion and TenneT have submitted investment applications for their respective PtG pilot plants hybridge and ELEMENT ONE (picture: Open Grid Europe GmbH)