Independent certification of “H2-Readiness” 2. November 2023

NEM is the first manufacturer to receive a concept certificate from TÜV SÜD for the H2-Readiness of heat recovery steam generators

Munich, Germany / Zoeterwoude, Netherlands. TÜV SÜD has developed a guideline for defining the H2-Readiness of power plants and power plant equipment and offers an independent third-party certification for OEMs and EPCs. NEM is the first provider worldwide to receive a concept certificate for its H2-Readiness concept for heat recovery steam generators and waste heat recovery units, including complementary equipment such as bypass stacks.

Hydrogen can play a central role in the decarbonization of energy systems. In particular, natural gas-fired combined cycle power plants (CCPP) currently being built or planned are also expected to run partially or fully on hydrogen fuel in the future. This means that CCPP developers and operators will expect from manufacturers of relevant components or subsystems evidence of the ability of their products to run on hydrogen in the future, also known as “H2-Readiness”.

The H2-Readiness guideline and the certification of TÜV SÜD can cover a complete power plant with all relevant subsystems. NEM is a manufacturer of heat recovery steam generators and exhaust gas bypass systems, which are used in CCCP to generate steam or hot water from the exhaust gas of the gas turbines. The concept certificate of TÜV SÜD confirms, that the H2-Readiness concept of NEM for the bidding phase of newly built projects complies with the requirements of the guideline and that the heat recovery steam generators (HRSGs) are ready for the use with hydrogen up to 100 percent.

The H2-Readiness certification of TÜV SÜD includes three stages and three certificates. First, a concept certificate for the conceptual design including boundary conditions during the bidding phase; second, a project certificate for the final plant design and its specifications; and third, a transition certificate for the conversion of an existing CCPP to burn hydrogen – including a review of the retrofit measures and their impact on safety and performance.

“This is the first time, that we have issued a concept certificate to a manufacturer of heat recovery steam generators. This shows that our guideline and our certification scheme can be applied modularly by selecting the relevant sections for the evaluation,” says Pierre Huck, responsible project manager on the TÜV SÜD side.

“We’re proud to be the first HRSG manufacturer to receive this important certification. If we design our heat recovery steam generators today for future operation with hydrogen, they will make an important contribution to a reliable and sustainable power supply in the long term,” says Sebastiaan Ruijgrok, Manager Marketing & Business Development at NEM.

The TÜV SÜD certification can be applied to a wide range of solutions. The provider of testing, inspection and certification services has amassed wide-ranging expertise and experience in the field of hydrogen technologies supporting the entire H2 value chain from production, storage and distribution up to application in various areas, such as industrial production, transport or power generation.

For more information on TÜV SÜD services for a safe and sustainable hydrogen industry visit


Media Relations:

Dr. Thomas Oberst
Corporate Communications
Westendstrasse 199, 80686 Munich
Tel.      +49 (0) 89 / 57 91 – 23 72
Fax      +49 (0) 89 / 57 91 – 22 69
Email:     [email protected]
Sebastiaan Ruijgrok
NEM Energy B.V.
Marketing & Business Development
Stadhouderslaan 900, 2382 BL Zoeterwoude
The Netherlands
Tel.      +31 (0) 71 / 20 53 600
Mobile  +31 (0) 63 0056 756
Email:     [email protected]


About TÜV SÜD: Founded in 1866 as a steam boiler inspection association, the TÜV SÜD Group has evolved into a global enterprise. More than 26,000 employees work at over 1.000 locations in about 50 countries to continually improve technology, systems and expertise. They contribute significantly to making technical innovations such as Industry 4.0, autonomous driving, renewable energy and hydrogen technologies safe and reliable.

About NEM Energy Group: Established in 1929, and worldwide known as NEM, NEM Energy Group is a leading, global Original Equipment Manufacturer (OEM) company in the field of heat transfer technology and exhaust systems. NEM has focused its activities on the Energy busi­ness. The portfolio includes heat recovery steam generators (HRSG), Waste Heat Recovery Units (WHRU), heat exchangers, exhaust diverter solutions, as well as aftermarket services for existing installations. NEM’s customized solutions drive a carbon-neutral society in three directions: increasing energy efficiency, flexible operations of power and heat generation, and carbon-free heat transfer.

With over 130 years of experience, NEM Energy Group stands as a prominent OEM in heat transfer technology and exhaust solutions.

Engage with this insightful article as our esteemed CEO, Alexander Wisse, talks about NEM pioneering the energy transition on three fronts: enhancing energy efficiency, enabling adaptable power generation, and championing carbon-free heat transfer. Notable accomplishments encompass monumental HRSG projects and groundbreaking designs in pursuit of sustainable energy solutions.

Discover the complete article.

Highly efficient Heat Recovery Steam Generator

NEM Energy is to supply one of the largest Heat Recovery Steam Generators (HRSGs) for a new and highly efficient combined cycle power plant in Rybnik, Poland. The power plant will have a capacity of approximately 900 MWe. The new gas turbine-based combined cycle power plant will replace old coal-fired power capacity and will contribute to Poland’s energy transition goals.

Supplying two vertical DTSGs in Frankfurt, Germany

NEM Energy is to supply two vertical Drum Type Steam Generators (DTSGs) for a Combined Heat and Power Plant in Frankfurt, Germany. The project has a special feature. The plant can run on natural gas and is also designed as a hydrogen-ready facility. The plant is expected to run on hydrogen, further reducing carbon emissions and contributing to sustainable power and heat production. The DTSG heat recovery products of NEM are a competitive solution for the lowest total installed cost due to easy installation on site.


On the first of April 2023, NEM Energy B.V. has fully acquired Balcke-Dürr GmbH. Following the transaction, Balcke-Dürr has become a part of the NEM organization. In the coming period the two organizations will start to work closer together to enforce and expand the product and service portfolios of both companies.

Alexander Wisse, CEO of NEM Energy B.V. is pleased to see Balcke-Dürr joining the NEM organization and said: ”Both organizations have great potential to benefit from each other’s capabilities. For instance, NEM’s global market presence with Balcke-Dürr aftermarket competences.”

About Balcke-Dürr
With more than 130 years of experience, the Balcke-Dürr Group offers innovative solutions for utilities and chemical industry, ranging from standard to customized equipment and from single component to complete systems. Balcke-Dürr’s experienced engineers are specialized in solutions that meet the highest safety and sustainability requirements. The product portfolio includes heat exchangers and reactors, cooling towers, nuclear decommissioning and maintenance services.

About NEM Energy
Established in 1929, and worldwide simply known as NEM, is a leading, global Original Equipment Manufacturer (OEM) company in the field of steam related equipment and exhaust systems. NEM has focused its activities in the Energy business. The portfolio includes Heat Recovery Steam Generators (HRSGs), Waste Heat Recovery Units (WHRUs), Diverters & Dampers, as well as service and spare parts for existing installations. NEM has supplied custom-made solutions with regard to steam generators for power generation and industrial applications throughout the world.

NEM will provide services to existing Heat Recovery Steam Generator (HRSG) installations that will increase the availability and reliability of a critical industrial site where LNG is produced. These installations were initially installed by another Original Equipment Manufacturer (OEM), but the customer selected NEM for its unique know-how and expertise in HRSGs. NEM has provided many steam generators to various operators in Qatar. The first installations were shipped from the Netherlands to Qatar already in the seventies.

NEM is committed to supporting Qatar to improve energy efficiency and thereby reducing emissions. Director of NEM Boiler Services Frits Engelage is proud about this new order: ”We are extremely happy to work on this project. It underwrites the know-how of NEM and its capability to service any HRSG type and make. We are dedicated to support customers with energy efficiency improvements”. NEM provides a full range of services for existing HRSG installations that can help operators improve the performance of their installations.

This portfolio is high lighted here.