World's first trial run: Viennese gas turbine ready for hydrogen
Wien Energie, RheinEnergie, Siemens Energy and VERBUND are testing the use of hydrogen under real conditions – Donaustadt power plant is being prepared for admixture in 2023
"The climate crisis will not be solved through talk alone! The conversion of the gas turbine and the world's first hydrogen trial run at the Donaustadt power plant are important steps for more climate protection and independence. In the future, we will also need power plants for the reliable supply of energy in the city. With the trial run, we are working with our collaboration partners on a specific solution for how we will be able to operate these facilities climate-neutrally in the future," explains Michael Strebl, chairman of the executive board of Wien Energie.
Turbine conversion work completed by the middle of JulyIn addition to preparing for the admixture of hydrogen, Wien Energie can also increase the efficiency of the power plant by a total of around 23 megawatts, thanks to the turbine conversion. The conversion work will include improved turbine blades, a new combustion system, a heating gas analyser and a new control system. The combustion chamber has also been optimised and prepared for the trial run.
The conversion of the gas turbine, which started at the beginning of May and will be completed in the middle of July, is being carried out by Siemens Energy.
Climate protection cooperation with a big impact
Wien Energie, RheinEnergie and VERBUND all use Siemens Energy gas turbines of type 4000F. As gas and steam turbine plants, these facilities are able to generate heat and electricity around the clock. Their flexibility will also be urgently needed in the future: the turbines can balance out daily fluctuations and seasonal production differences in the renewable electricity generation of wind and solar power.
"We are testing and researching here together the use of hydrogen in the existing infrastructure of a thermal power plant, in order to advance the decarbonisation of the gas sector and reduce our dependence on fossil imports," says VERBUND Executive Board member Achim Kaspar. "That is more important than ever today."
The trial run can have a big impact on the conversion of power plants to climate-neutral sources worldwide. An admixture of just 15 percent of green hydrogen by volume would save around 33,000 tonnes of CO2 annually at the Donaustadt power plant, for example. The plant type in which the admixture is being tested carries in its class the main load of the supply on the electricity market in Austria and specifically for the supply area of Vienna. More than 115 gas turbines of this class are in operation in Europe with an installed capacity of more than 31 gigawatts.