Spanish utility Iberdrola is heading a consortium aiming to develop a large-scale floating offshore wind turbine in the North Sea, as the sector looks to drive up the size of technology and push down costs.

In an announcement Monday, the firm said the turbine would be in excess of 10 megawatts (MW) and tested at the Marine Energy Test Centre in Norway. The average size of offshore turbines installed in 2019 was 7.8 MW, according to trade body WindEurope.

The international consortium, made up of firms from Spain, Germany, France, Norway and Denmark, aims to reduce the cost of floating offshore wind energy production. Iberdrola said it hoped to lower the levelized cost of energy (LCOE) for floating offshore wind to between 40 and 60 ($44 and $66) euros per megawatt hour (MWh).

There is definite scope for cost reductions in the offshore sector. Last November, Wood Mackenzie said Europe’s LCOE for bottom-fixed offshore wind would drop from an average of $133 per MWh in 2019 to $51 per MWh in 2028.

The project is connected to the European Commission’s Horizon 2020 research and innovation program, which is providing almost 80 billion euros of funding to projects between 2014 and 2020. Iberdrola said it hoped to sign an agreement amounting to around 25 million euros with the European Commission in the second half of this year.

Construction of the project’s floating platform could begin in the second quarter of 2021, with installation commencing in the first quarter of 2022. Another floating offshore wind project is being planned for Spain, although this will use different technology to that deployed in Norway.  

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