This summer has brought record-breaking temperatures, with many regions bracing for severe weather warnings throughout late June and early July. If previous warning bells haven’t already prompted concern already, the unprecedented weather changes certainly raise the urgency of climate change, its impact on the environment and human life, and the urgency for initiating government-level action to mitigate its catastrophic effects.

Implementing a large-scale renewable energy strategy is critical to ease fossil food emissions, reduce carbon footprints, and ultimately mitigate the impact of climate change. This includes ambitious plans to populate the North Sea with wind farms, which is explored in a recent study published in Energies.

Net zero and the clean energy transition

Net zero is the globally recognised target and action plan to cut carbon emissions and reach carbon neutrality by 2050. The global initiative aligns with the United Nations’ (UN) Sustainable Development Goal 13: ‘Take urgent action to combat climate change and its impacts’.

However, as stated by the UN, many regions are not complying with commitments or never committed, meaning that collectively they are no longer on track to achieve net zero by 2050. The EU put forward a long-term strategy to reach net zero by 2050, with all 27 countries proposing comprehensive strategies and frameworks to reduce carbon emissions and achieve carbon neutrality. Furthermore, the legally binding European Green Deal pledges to cut emissions by at least 50% by 2030 and 90% by 2040.

These commitments are underscored by the billion-euro investment in renewable energy resources to reduce fossil fuel dependency and reach zero emissions. With global energy consumption expected to rise by 50% by 2050, bold efforts are required to reach carbon neutrality.

This includes accelerating the clean energy transition through renewable sources such as solar power and wind power. However, large-scale implementation of renewable energy systems, like solar and wind farms, can also bring significant trade-offs.

The research led by scientists from the UK predicts how the implementation of offshore wind power systems by countries surrounding the North Sea may have significant implications on local marine habitats and sea users.

The North Sea is vital for energy, transport, and fishing

The North Sea (pictured below) is split into boundaries adopted by its surrounding regions, including the UK and countries within the EU. Due to the presence of persistent strong winds across the marine region, it is a hot spot and a vital part of the clean energy transition.

Map of boundaries of the North Sea (Figure 1; Energies 2026, 19(5), 1339; https://doi.org/10.3390/en19051339)

The North Sea was and continues to be a region of high economic importance due to its ideal geographical position between the UK and Europe. It was responsible for the transportation of over 427 million tonnes of goods in 2023. Furthermore, the North Sea is rich and diverse in marine life, contributing enormously to fishing industries in the UK and surrounding EU countries.

The project, led by researchers from Heriot-Watt University in Scotland in collaboration with University of St. Andrews and University of Hull, aimed to demonstrate a practical and realistic visualisation of the forecasted wind farm expansion plans in the North Sea, while also predicting its subsequent impacts on transport routes and marine life and environment.

The drawback of wind farms

Wind power produces zero carbon emissions and is one the most cost-effective methods of generating clean energy. Wind farms, which are clusters of offshore or onshore wind turbines, can generate substantial amounts of electricity with the potential to power millions of homes.

However, just like other renewable energy resources, wind power also presents some drawbacks, including its ecological interference, such as habitat destruction, and, in the case of offshore farms, its disruption to sea life and vital sea routes for fishers and cargo ships.

Furthermore, although wind turbines do not produce carbon emissions, the carbon footprint tied to its manufacturing process and subsequent disposal are substantial.

The study published in Energies reveals a visual representation of what the North Sea would look like after implementing European offshore wind ambitions. The researchers put forward the key question: “If all the national ambitions were built, what might the North Sea look like in 2050?”. Altogether, the plans account for a total of 19,400 offshore wind turbines planted in the North Sea, covering approximately 11% of the marine region.

Arrangement of wind turbines in the North Sea as per European ambitions for implementing wind farm systems by 2050. (Figure 4, Energies 2026, 19(5), 1339; https://doi.org/10.3390/en19051339)

“Our scenario shows the scale that we would be looking at if every country were to build the amount of offshore wind capacity that they have promised. It’s important to be clear that this isn’t a prediction of what the North Sea will look like in 2050, it’s simply a projection based on the data and national ambitions we have today.” – Dr Simon Waldman, Assistant Professor of Energy Technologies at Heriot-Watt University’s School of Energy, Geoscience, Infrastructure and Society

The research predicts that the wind turbines will cover approximately 58,500 square kilometres within the North Sea. The impact of such large-scale coverage is likely to be significant, especially for fishers who will be required to share and plan alternative fishing routes which may be more complicated and costly and less efficient.

Large-scale wind farms can also cause immense zones of , called ‘wakes’, because of turbines slowing the air behind it. This can disrupt the productivity of the wind turbines when packed closely together and can result in significant energy losses and reduction in turbine efficiency.

“We’re already seeing early signs of developers reporting energy losses due to neighbouring wakes, and there are ecological considerations too as we look at how these structures alter marine systems. As the sector expands, understanding these interactions clearly becomes essential. ” – Dr Simon Waldman.

Forecasting potential barriers to wind farms

With the clean energy transition and strategy for net zero in full force throughout the EU and UK, wind power implementation in the North Sea is likely to accelerate in the decades ahead.

However, understanding the obstacles associated with this ambitious strategy is critical to minimise the impact on the environment, marine industries, and potential energy losses due to wind turbine placement.

Professor Rodney Forster from the Hull Marine Laboratory discusses future steps for understanding the implications of the expansion:

“The next steps are to identify other uses of the sea that can be placed alongside or within operational windfarms. In separate research we have identified that the best conditions for growing mussels in aquaculture farms happens to coincide with the best sites for offshore wind.

“Our work with the University of St Andrews and Heriot-Watt University will help us to manage our interactions with the sea to better support those ecosystems and the communities that depend on them.”

Predicting the potential challenges arising from these ambitions by the UK and EU are essential to mitigate any risks of complications, minimise disruption to marine wildlife, protect local habitats, and maximise clean energy production.

To read more research on renewable energy and sustainability, access the section A3: Wind, Wave and Tidal Energy published in Energies.

Alternatively, you can browse the full MDPI Journal list.