Climate
New ‘Tension Buoy’ innovation could help expand floating solar and hydro power in Wales
A NEW Norwegian innovation could open the door for floating solar and hydro power projects across Wales, including the Celtic Sea and inland reservoirs.
The “Tension Buoy”, developed by renewable technology company Fred. Olsen 1848, is designed to maintain stable mooring for floating solar platforms even when water levels rise or fall dramatically. The system automatically adjusts its tension using a built-in winch, solving one of the biggest technical challenges for floating solar installations on dams and reservoirs.
Floating solar – panels mounted on buoyant platforms – is increasingly seen as a key partner to hydropower, allowing energy to be generated from the same water body without additional land use. When paired with hydropower dams, solar power can boost generation during dry periods or daylight hours, while hydro continues to supply baseload energy.
According to Fred. Olsen 1848, this combination could unlock hundreds of gigawatts of renewable potential worldwide. The company’s new Tension Buoy adapts automatically to fluctuating water levels, maintaining optimal tension without manual intervention and keeping floating solar arrays stable and secure.
Although the system was first deployed at Risør in Norway, the technology could soon have applications closer to home. With Pembrokeshire’s growing hydrogen and floating wind sector, experts say innovations like this could complement the region’s renewable mix.
Marine Energy Wales and ORE Catapult have both highlighted the need for flexible mooring and hybrid energy systems to make best use of the Celtic Sea’s renewable potential. Floating solar, combined with hydropower or battery storage, could form part of future local energy hubs alongside the projects already being developed in Milford Haven.
Fred. Olsen 1848 says its goal is to make sustainable energy “more widely available to help combat climate change”, continuing a 175-year tradition of maritime innovation.
The company’s commercial manager, Martinius Hars, said the Tension Buoy “removes one of the main barriers to large-scale floating solar deployment” by offering a simple, reliable solution to water-level variation.
If adopted in Wales, such systems could help reservoirs, ports and hydro dams contribute to the UK’s Net Zero target while creating new opportunities for the local supply chain in marine renewables.
Climate
Offshore wind ‘could bring new generation of jobs to Milford Haven’
Pembrokeshire ports and Celtic Sea projects placed at centre of Wales’ green energy ambitions
MILFORD HAVEN and Pembroke Dock could be at the heart of a new offshore wind boom after Wales’ new energy minister said the sector could drive jobs, investment and coastal regeneration.
Adam Price, the Cabinet Minister for Enterprise, Connectivity and Energy, told the Global Offshore Wind 2026 conference that Wales was “open for business” and ready to work with industry, the UK Government and The Crown Estate.

For Pembrokeshire, the announcement is particularly significant. The Milford Haven Waterway is already being positioned as a key base for floating offshore wind in the Celtic Sea, with Pembroke Port earmarked as a major renewables hub. Plans for a dedicated floating offshore wind storage compound at Pembroke Dock have already secured planning permission.
Mr Price said: “I believe that the offshore wind sector has the potential to deliver high quality sustainable career opportunities for people in Wales.
“The offshore wind sector has a key role to play in bringing about the regeneration of coastal communities in both north and south Wales.
“Our role is to remove the blockers faced by the sector — whether in planning, access to finance or infrastructure.”
The Celtic Sea floating wind programme is expected to create major supply chain opportunities for Welsh ports, engineering firms, vessel operators and training providers. Marine Energy Wales has said the first 4.5GW of floating offshore wind in the Celtic Sea could create more than 5,300 jobs during construction.
The Port of Milford Haven has previously said the Haven’s existing energy expertise, heavy engineering base and deep-water port facilities make it well placed to support the industry.
Mr Price also welcomed UK Government support for Port Talbot, but Pembrokeshire businesses will be watching closely to ensure Milford Haven and Pembroke Dock receive a fair share of the investment.
Jessica Hooper, Director of RenewableUK Cymru, said offshore wind was “Wales’ next big industrial opportunity”, adding that it could be worth almost £5bn to Welsh businesses and deliver more than 3,000 long-term secure jobs.
For Milford Haven, long associated with oil, gas and marine industry, floating offshore wind could mark the next chapter in the Haven’s energy story.
Climate
Royal Welsh Show visitors urged to travel sustainably
VISITORS to this year’s Royal Welsh Show are being encouraged to use public transport as organisers look to ease congestion and promote more sustainable travel.
The show takes place at the Royal Welsh Showground in Llanelwedd, Builth Wells, from July 20 to 23, and is expected to attract thousands of people from across Wales and beyond.
The Royal Welsh Agricultural Society said rail and bus services would provide convenient options for showgoers, with free shuttle buses running from Builth Road railway station to the showground, which is just over a mile away.
Discounted admission
Visitors travelling on the Heart of Wales Line with a valid rail ticket will be able to buy discounted show admission tickets from conductors and ticket offices along the route.
The discounted prices are £35 for adults and £11 for children. Children under 16 can travel free by train when accompanied by a fare-paying adult.
Transport for Wales said rail services would connect visitors from across Wales and the borders, including routes from Cardiff through some of Wales’ most scenic countryside. TrawsCymru bus services will also provide another option for those travelling to the event.
Family activities
Transport for Wales and Network Rail will also have an interactive stand at the show, offering family-friendly rail safety activities and entertainment.
Activities will include VR headset experiences, story time sessions, badge-making classes and rail safety performances. Builth Wells Male Voice Choir is also due to visit the stand on the first day of the show.
Children under 16 travelling to the show by train on the Heart of Wales Line will be able to collect a free activity sheet on board and hand in their completed artwork at the Transport for Wales stand for a chance to win a prize.
Visitors are being urged to plan their journeys in advance through the Transport for Wales website and journey planner.
Travel encouraged:
Visitors to the Royal Welsh Show are being urged to consider rail and bus services this year (Pic: RWAS).
Climate
Welsh Conservatives call for moratorium on major wind and solar schemes
CALLS have been made for an immediate moratorium on industrial-scale solar and windfarm developments in Wales amid concern over the loss of productive farmland.
The Welsh Conservatives say the Welsh Government should pause major renewable energy schemes and urgently review the planning rules for Developments of National Significance.
Party leader Darren Millar MS said Future Wales 2040, the national planning framework, gives too much weight to large-scale renewable energy projects and risks allowing solar farms and windfarms to be built at the expense of food production.
Planning row
The row comes as Wales faces pressure to increase renewable energy generation while also protecting agricultural land, rural landscapes and farming communities.
Under the Developments of National Significance process, major infrastructure projects, including some large renewable energy schemes, are decided by Welsh Ministers rather than local councils.
Supporters say the system is needed to deliver clean energy and reduce reliance on fossil fuels, while critics argue it can leave communities feeling that decisions are being taken out of their hands.
Mr Millar said: “In opposition, the now First Minister campaigned against industrial-scale renewable developments in his own constituency for fear of the impact it would have on valuable farming land. Now in government, he needs to act accordingly to protect prime agricultural land.
“The current planning framework is fundamentally flawed. Future Wales 2040 creates an assumption in favour of industrial-scale solar farms and windfarm developments across great swathes of rural Wales, putting productive farmland at risk.
“We support renewable energy and recognise its role in achieving energy security and reducing emissions, but those developments should not be at the expense of Wales’ food security.
“Renewable developments should be appropriate in scale and sensitive to their environment, making better use of the roofs of buildings and car parks.
“The Welsh Government should introduce an immediate moratorium on industrial-scale solar and windfarm developments and undertake an urgent review of the planning framework for Developments of National Significance so Wales can take a more balanced approach to Wales’ energy future.”
Climate targets
The Welsh Government says renewable energy is central to meeting Wales’ climate targets and improving energy security, but that projects must go through the planning system before consent is granted.
Supporters of large-scale renewable schemes argue they are needed to cut emissions, reduce reliance on imported energy and help stabilise electricity supplies. Some farmers and landowners also see renewable projects as a source of income at a time when the agricultural sector is under pressure.
However, opponents say the scale and location of some proposals risk damaging landscapes, reducing food-producing land and leaving rural communities with too little say over major developments.
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