Skip to content

Issue 12-2025

Research & Development

Christopher Weßelmann

Research is not just an additional element of energy technology; it is fundamental to it. During this period of profound transformation, research will determine whether Europe’s energy system can meet the growing demands of climate protection, security of supply, affordability, and resilience. The development of tomorrow’s energy technology will not be driven solely by political objectives or market signals, but by systematic, long-term research that develops and evaluates technological options and scales them up for industrial use.

In this regard, Europe faces a double challenge. Firstly, existing infrastructures must continue to be operated, modernised and safely controlled. On the other hand, transitioning to a largely greenhouse gas-neutral energy system requires new technologies, system architectures and operating regimes. Research bridges the gap between these two areas. It paves the way for conventional power plant and grid technology to become more flexible, digital and low-emission, while simultaneously rendering new building blocks, such as hydrogen technologies, large-scale storage, power-to-X processes and CO2 capture and utilisation, technically controllable.

[more…]

Approved or halted? Why and how communication plays a decisive role in the success of infrastructure projects

Lilith Diringer, Björn Fröbe and Ulf Mehner

The energy supply is undergoing radical change – not only technologically, but also socially and politically. What used to be seen primarily as a technical task has now become a comprehensive systemic issue. The energy transition in the Federal Republic of Germany is more than just a transformation programme in the energy sector – it is a project affecting society as a whole with enormous implications. Industry and the population are united by a common goal: a functioning, fair and sustainable energy supply. However, both stakeholder groups pursue this goal from different perspectives – with sometimes conflicting priorities. After all, infrastructure needs acceptance, and acceptance is not a matter of chance, but the result of strategic communication, transparent processes and credible, compliant and efficient participation.

Fluidized bed combustion solutions for residual fuels

Tero Luomaharju, Risto Eteläaho, Pekka Lehtonen, Jussi Viljanen and Merja Hedman

Fluidized bed combustion technologies, specifically Bubbling Fluidized Bed (BFB) and Circulating Fluidized Bed (CFB) boilers, have proven to be highly versatile and efficient solutions for utilizing various types of residual fuels. These technologies offer significant advantages in terms of fuel flexibility, emission control, and operational reliability, making them suitable for a wide range of industrial applications. The article highlights the importance of sustainable fuel options, particularly biomass-based residuals and recovered fuels. Valmet‘s extensive experience and innovative solutions in fluidized bed combustion have enabled the effective utilization of these alternative fuels, contributing to the reduction of greenhouse gas emissions and promoting a more sustainable energy future.

The amendment to the 17th BImSchV – New requirements for waste incineration and waste co-incineration plants

Thorsten Noll

On 12 November 2019, the conclusions on best available techniques (BAT) for waste incineration were published in the Official Journal of the European Union. The BAT listed there must be transferred to the permit requirements within four years of publication in the EU Official Journal and implemented in the annex. The conclusions will be implemented nationally by amending the 17th Federal Immission Control Ordinance (17. BImSchV) of 13 February 2024, which will introduce new requirements for the operation and monitoring of emissions from waste incineration and waste co-incineration plants. A statutory instrument to the Federal Immission Control Act (here: 17th BImSchV) is legally binding and does not require any further implementation by the competent supervisory authority.

Steam turbines for sector coupling of electricity and heat

Andreas Gebhardt and Patrick Hoffmann

Traditional heat-led CHP plants with steam boilers and steam turbines are characterised by high fuel efficiency. However, the electricity generated is often only a by-product, which means that the system is not flexible enough to respond to fluctuations in electricity prices. Instead of feeding more electricity into the grid when electricity prices are high on the spot market, the feed-in is based exclusively on the heat demand of consumers, such as a district heating network. The integration of heat storage systems can significantly increase the flexibility of such plants. When electricity prices are low, more steam is extracted in order to supply heat consumers and fill a thermal storage system at the same time. Implementing this strategy requires flexible, fast-starting steam turbines with lightweight rotors that do not show signs of wear or other damage when frequently started up and shut down.

Download [1.0 MB]

Optimisation of learning patterns in neural networks based on practical examples, using the prediction of process engineering measurements in thermal plants and in the manufacturing industry as examples

Frank Gebhardt

The application of artificial intelligence is finding its way into the practical operation of process engineering plants, in this case specifically waste incineration plants, and now also into the manufacturing industry. This article covers practical experience with the optimisation of neural networks of trustworthy, deterministic AI. Examples are shown in which these measures make practical application possible in the first place. The article shows the practical creation and optimisation of learning patterns (LM) for neural networks (NN) in practical AI applications.

The E-Wood biomass power plant – flexible fluidised bed technology for demanding fuels

Johannes Gernert, Sebastian Zimmer and Detlef Simon

The E-Wood biomass power plant in Doel, Belgium, is a state-of-the-art biomass power plant designed to thermally convert around 150,000 tonnes of waste wood and biogenic residues per year. These are mainly waste wood of classes A-3 and A-4 (B/C category) as well as smaller quantities of oversized waste from composting and landscape maintenance wood. The article describes the new biomass CHP plant with its main components: combustion, steam generator and flue gas cleaning. At the heart of the plant is the stationary fluidised bed combustion system, which ensures particularly stable and low-emission combustion thanks to its even temperature distribution, high mixing and extensive air staging. In combination with the suspended water tube boiler in a vertical draft arrangement, it enables reliable steam generation with high efficiency.

Download Beitrag [1,2 MB]

More flexible biomass cogeneration plants thanks to biomass gasifiers

Hellmuth Brüggemann, Martin Käß and Ingo Dreher

In line with the EU‘s efforts to reduce greenhouse gas emissions, its member states are in the process of transforming the energy industry into an ecological and sustainable production structure. The focus here is on ensuring a secure and sustainable supply of electricity and heat to consumers. Decentralised cogeneration plants, which are often already fuelled by local biomass such as wood chips, straw, energy crops from agriculture or residual wood from forestry, play an important role in the provision of sustainably generated energy. This article reports on the important aspects of the availability of biomass for thermal use in power plants and provides an outlook on the economic efficiency of the entire chain from biomass harvesting, transport, storage and processing. In addition, an example of a flexible plant concept is presented.

US gas demand growth from LNG exports and data centers is backed by pipeline expansion

GECF Gas Exporting Countries Forum

The role of natural gas in the US is gaining strong momentum. The share of natural gas in primary energy consumption rose to 35 % in 2024, up from 30 % in 2015. The power sector was the primary driver of domestic gas consumption increase, with modest growth in the industrial sector, largely unchanged consumption in the residential and commercial sectors, and the transport sector continuing to play only a niche role in the gas market. The power generation sector is expected to remain the main driver of domestic gas consumption growth, primarily driven by highly energy-intensive data centers, especially AI-focused ones. US gas demand growth from LNG exports and data centers is backed by pipeline expansion

Review: vgbe workshop | Operating oils in energy and industrial plants 2025

vgbe energy

Event report on the vgbe workshop Operating Oils in Energy and Industrial Plants 2025 in November in Siegburg.

To the article …

Review: vgbe training event for Immission Control and Accident Prevention Officers 2025

vgbe energy

Event report on the vgbe training event for Immission Control and Accident Prevention Officers 2025 in November in Höhr-Grenzhausen.

To the article …

Review: vgbe Conference | Thermal Waste and Sewage Sludge Treatment and Fluidised Bed Combustion 2025

vgbe energy

Event report on the vgbe Conference Thermal Waste and Sewage Sludge Treatment and Fluidised Bed Combustion 2025 in November in Hamburg.

To the article …

Editorial

Wess2000

Christopher Weßelmann

Editor in Chief vgbe energy

Research & Development

Dear readers of the vgbe energy journal,

Research is not just an additional element of energy technology; it is fundamental to it. During this period of profound transformation, research will determine whether Europe’s energy system can meet the growing demands of climate protection, security of supply, affordability, and resilience. The development of tomorrow’s energy technology will not be driven solely by political objectives or market signals, but by systematic, long-term research that develops and evaluates technological options and scales them up for industrial use.

In this regard, Europe faces a double challenge. Firstly, existing infrastructures must continue to be operated, modernised and safely controlled. On the other hand, transitioning to a largely greenhouse gas-neutral energy system requires new technologies, system architectures and operating regimes. Research bridges the gap between these two areas. It paves the way for conventional power plant and grid technology to become more flexible, digital and low-emission, while simultaneously rendering new building blocks, such as hydrogen technologies, large-scale storage, power-to-X processes and CO2 capture and utilisation, technically controllable.

System research plays a particularly important role in the European context. The high penetration of fluctuating renewable energies, the coupling of national electricity markets and grids, and the growing dependence on electrified industrial and transport processes necessitate a holistic approach. Research must optimise not only individual components, but also analyse how they interact within the overall system. Questions regarding grid stability, controllability, black start capability and resilience to technical, climatic or cyber-related disruptions can only be thoroughly answered at this level.

At the same time, the focus of energy technology research is shifting. As well as efficiency and material issues, greater emphasis is being placed on operating strategies, data availability and evaluation, automation, and artificial intelligence. Digital twins, simulation-based decision support and predictive maintenance are opening up new possibilities for the safe and efficient operation of plants. Research provides the methodological basis for reliably using data and stably managing complex systems, even under uncertain conditions.

For Europe, research is also a strategic factor in international competition. Technological sovereignty is achieved when expertise is available throughout the entire value chain, from basic research to pilot plants to industrial implementation. As energy technology is heavily investment-driven and designed for the long term, it requires reliable research structures and close integration between science, industry, and operational practice. This is the only way to translate innovations into marketable solutions in a timely manner.

Looking to the future, it is clear that requirements will continue to increase. Demand for electricity is growing, systems are becoming more complex, and tolerance for failures is decreasing. Consequently, research is becoming increasingly important for risk management in the energy transition. It reduces uncertainty, provides a basis for decision-making, and allows well-informed comparisons between different technological approaches. In this sense, research is a driver of progress and a prerequisite for the ability to act.

The energy technology of tomorrow is being developed in Europe today by everyone involved in research and teaching, as well as by companies in laboratories, test fields, demonstration plants and in the ongoing operation of real systems. Research ensures that this path is taken responsibly rather than experimentally. It provides the basis for building an efficient, resilient and sustainable energy system.