For its third consecutive year, Hywind Scotland – the world’s first floating offshore wind farm – reached the highest average capacity factor for any wind farm in the UK, Equinor said today.
With an average capacity factor of 57.1% in the twelve months to March 2021, the floating offshore wind farm set a new record in the UK.
During its first two years of operation, the wind farm achieved an average capacity factor of 54%.
That compares to an average in the UK of around 40%.
The capacity factor is the ratio of actual energy output over a given period of time, to the maximum possible output.
A higher capacity factor means lower intermittency and higher value.
Equinor said the wind farm had “truly proven the potential for floating offshore wind”.
With Hywind Tampen onstream in 2022 Equinor will operate a third of floating offshore wind production worldwide.
Sonja Chirico Indrebo, plant manager for Hywind Scotland, said: “In Equinor we are constantly striving to improve the performance of our assets, whilst ensuring we extract learnings to support future projects.
“The turbines on Hywind Scotland are covered in sensors, to extract as much data from the wind farm as possible.
“We’re monitoring everything from ballast, mooring, structural strains and the more regular wind turbine sensor data, looking at how best to optimise this innovative technology as we prepare to develop at scale.
“We’re sharing parts of this data across industry to help the advancement of the technology globally and more widely than just our own operations.”
Sebastian Bringsværd, head of floating wind development at Equinor, said: “It’s great to see the results Hywind Scotland and the floating technology keeps delivering.
“The potential for floating offshore wind is huge.
“With access to deeper waters and therefore higher and more consistent wind speeds, floating offshore is not only an efficient way to generate electricity from wind, this exciting technology can also provide jobs and value creation for the countries supportive of floating.
“In the UK alone, we are talking at least 17000 jobs and £33bn GVA by 2050. We believe Scotland has the potential to build a globally competitive offshore wind industry, including a real chance to enhance the development of floating offshore wind.”
Equinor said it was uniquely placed to drive forward global deployment of floating offshore wind.
In 2009, Equinor installed the first ever floating offshore wind turbine, and Hywind Scotland followed in 2017 as the world’s first commercial floating offshore wind farm.
It is now developing an even bigger project, Hywind Tampen, situated off the coast of Norway.
This project, currently in construction, is on schedule to become the world’s largest floating wind farm as well as the first project ever to use wind energy to decarbonise offshore oil and gas production.
A recent report from ORE Catapult showed potential pathways for the growth and cost reduction for floating offshore wind.
Scale is key to cost reduction and Equinor has already seen a reduction in CAPEX per megawatt of 70% between its initial demonstrator, with a capacity of 2.3MW and Hywind Scotland, with a capacity of 30MW.
The company expects a further 40% drop between Hywind Scotland and the 88MW Hywind Tampen.
Mr Bringsværd said: “The global energy industry has been pleasantly surprised by the rapid decline in the cost to deploy fixed bottom offshore wind.
“We’ve been working on floating offshore wind for more than 10 years and we see that significant cost reductions can be achieved through scale and experience, paving the way for floating to become fully commercialised.”
In the UK alone it is estimated that up to 17,000 jobs and £33.6bn of GVA could be generated by this innovative technology by 2050.
The new areas floating offshore wind unlocks means the economic benefits of offshore wind will spread further, delivering long-term skilled jobs in places unsuitable for fixed bottom offshore wind.
The UK has become one of the first countries to set a formal target for floating offshore wind, committing to 1GW by 2030.
However, Equinor and others in industry are confident that we can go further than this, reaching up to 2GW by 2030 and building a multi-GW pipeline of projects to deliver the UK’s longer-term net zero objectives.