Generating green electricity with innovative technology
The gas expansion turbine uses unused gas pressure to generate clean electricity – efficiently, sustainably and economically.
+5 years maintenance-free
After 5 years, only simple on-site maintenance is required. After one working day, the turbine runs maintenance-free for a further 5 years.
Generating green electricity with our gas decompression turbine
Performance +50 kW
Depending on the operating conditions, outputs of 20 - 50 kW and more are possible - each turbine is individually designed for this.
Amortization after 3 years
With a standard electricity price of € 0.25/kWh, the turbine pays for itself after around 3 years - provided it runs continuously.
+5 years maintenance-free
After 5 years, only simple on-site maintenance is required. After one working day, the turbine runs maintenance-free for a further 5 years.
CO₂ avoidance of approx. 58 t/a
Assumptions: Generation of 160,000 kWh/a
German energy mix 2024: 363 g CO₂/kWh
This avoids the CO₂ emissions that would have been produced by conventional electricity generation.
Climate-neutral energy generation directly in the gas grid – with W2 technology
Watch our product video and be inspired by the innovative features of our gas expansion turbine.
Gas expansion turbine – Efficient power generation from gas pressure
The gas expansion turbine is designed as a partially pressurized axial turbine with synchronous generator. Thanks to the moderate depressurization, the temperature reduction remains minimal – additional preheating of the gas is not required.
Simple integration
The compact design and standardized connections enable smooth integration into existing systems.
Flexibility
Connection according to customer requirements, with standard connections (DN 400 PN 16).
Cost efficiency
Electricity is generated directly in the gas pressure regulator without affecting the outlet pressure.
No external cooling
Thanks to the optimized design, the generator remains thermally stable – without any additional cooling technology.
Environmentally friendly
The electricity-generating expansion is emission-free - without additional fuel and without CO₂ emissions.
Own production
Manufactured in Duisburg for the highest quality and reliability – “Made in Germany”.
W2 gas expansion turbine
The technical data of our gas expansion turbine speaks for itself. Precisely designed for use in demanding grid situations, it combines efficiency, safety and reliability at the highest level.
W2 gas expansion turbines in practice
Simple integration into gas pressure regulating and measuring systems (GDRM)
Schweiz
2025
Elmshorn
2023
ERI Regelwerk
2022
Thüga Singen
2021
Trier
2020“We are now completely self-sufficient and produce our own electricity without having to do anything. We have simply converted unused energy into green electricity.”Watch the NDR report in the ARD media library
Sven Möller
ElbEnergie
Quality and innovation “Made in Germany”
For over 60 years, W2 Armaturen GmbH has stood for German engineering and customized solutions in gas and control technology. Based in the Ruhr area, we develop and manufacture all products in our own production facilities – from the initial idea to the final implementation.
What is your energy potential? The experts at W2 will be happy to advise you!
Make a non-binding inquiry about the W2 gas expansion turbine.