Zero Emission Hydrogen Turbine Center

Solar panels are installed at the gas turbine production site to generate electricity that will be used for producing green hydrogen.

Technical specifications:

• 133 kW peak (DC)
• 100 kW (AC)
• About 1500 m² ground area

The electrolyzer produces green hydrogen from solar energy – and from the excess power of the gas turbine delivery tests. We can then compress the hydrogen and store it to feed it back into the plant as gas turbine fuel when we need it for the next test.

Technical specifications:

• PEM Electrolyzer 225 kW: 47 Nm3/h hydrogen production capacity @nominal operation, which would give about 100 kg per day in full time operation
• Diaphragm compressor 15,5 kW: compress the hydrogen from 30 bar to the storage pressure of 200 bar

Battery storage is used to increase the operation flexibility of our energy system and to show different possibilities of storing energy; either as compressed hydrogen and/or as electricity in batteries.

Technical specifications:

• 75 kW / 76 kWh
• enables island operation of the system (decoupled from external electricity grid)

We store hydrogen produced in the electrolyzer and feed it back into the plant as gas turbine fuel when we need it for the next test.

Technical specifications:

• 24,000 liters @200 bar, which is about 360 kg
• Stored in bottles

The main fuel used at the gas turbine testing facility has been natural gas. In 2020 biogas was added in the strive to reduce the environmental impact and to demonstrate fossil free gas turbine operation.

The more green fuels like biogas, and/or hydrogen, are blended into the mix, the less CO₂ is emitted into the air. 

During the delivery tests, the gas turbines generate a huge peak of electricity. A big portion of this electricity is fed into the national electrical grid.

However, the grid cannot handle all of the generated electricity. Part of this excess power will, as part of the Zero Emission Hydrogen Turbine Center, be directed to an electrolyzer to produce hydrogen that can be added as carbon-free gas turbine fuel at the next gas turbine test.

Siemens Energy in Finspång, Sweden, has three active test riggs in operation for performing complete mechanical running tests (MRT) on gas turbines SGT-600, -700, -750 and SGT-800.

The fuel used is natural gas, and since 2020 also biogas. In 2021 hydrogen will be added to the mix. This fuel shift is in line with the target for the test facility to be CO₂ neutral by 2030.

Gas turbine operation @ 15%vol hydrogen: 

• One hour of full load test operation consumes 150 kg hydrogen and saves 360 kg fuel gas and about 1 ton C0₂ emissions *

_{*Assumptions: Typical medium size gas turbine (30-35 MWel) fuel consumption – SGT-700}