Scotland is advancing its push for marine renewables with a groundbreaking wave energy cluster concept. Wave Energy Scotland (WES) has introduced a design for a multi-megawatt cluster of wave energy converters (WECs), aiming to enhance efficiency and reduce offshore energy costs.
A New Approach to Wave Energy Deployment
The WES proposal focuses on clustering multiple WECs into a single moored and electrically connected unit. This setup could optimize offshore energy generation by improving capacity density, minimizing infrastructure needs, and streamlining operations. According to WES, key benefits include:
- Fewer moorings and shorter tethers, reducing environmental impact
- Decreased dynamic cabling, cutting down on material costs and maintenance
- Improved offshore operations, making wave energy more commercially viable
Economic modeling conducted by Offshore Wind Consultants suggests that co-locating wave energy with floating offshore wind projects could further drive down costs and improve efficiency.
Leveraging Floating Wind to Accelerate Commercialization
Tim Hurst, Managing Director at WES, emphasized the potential of WEC clusters in wave energy commercialization and their role in offshore renewable expansion.
“Clustering wave energy converters could be a key solution for wave energy array deployments and an attractive option for co-location with floating offshore wind farms,” Hurst said. “This cluster concept offers a potential path for commercializing wave energy and will be used to engage with stakeholders across the offshore renewable energy sector.”
As floating wind projects push into deeper waters—such as the ScotWind leasing zones—WES believes wave energy could tap into shared infrastructure and supply chains, making large-scale deployment more cost-effective.
Testing and Engineering Innovations Show Promise
Research conducted at the University of Edinburgh’s FloWave facility revealed that closely spaced WECs do not suffer significant performance losses. These findings led WES to collaborate with UK-based Blackfish Engineering Design to develop a practical cluster arrangement.
Tim Warren, Operations Director at Blackfish, highlighted the challenge and innovation behind the project. “The creative innovation process yielded plenty of ideas and concepts so that Blackfish could use our marine engineering expertise to assess these in more detail. We were very pleased to be able to develop a viable cluster concept that considers the major topics of spacing, manufacturing, and O&M.”
Billions in Economic Potential for Scotland’s Marine Energy
A WES-commissioned report estimates that Scotland’s tidal and wave energy sector could generate over £8 billion ($10 billion) in economic benefits and create more than 15,000 jobs by 2050. However, continued investment and policy support will be crucial in maintaining the country’s leadership in marine renewables.
In January, UK Members of Parliament debated the future of the nation’s marine energy industry, urging stronger government backing for tidal and wave energy growth. MPs called for increased funding and targeted policies to ensure the UK retains its competitive edge in the global renewables market.
Scotland’s wave energy cluster concept could mark a significant step toward the commercial viability of marine renewables. With further research and investment, the country aims to solidify its position as a leader in offshore clean energy.
