Siemens presents cost out strategy for offshore wind power by 2025

Source: Siemens

Siemens’ offshore wind projects from 2025 onward will be capable of generating electricity at an LCoE level below eight euro cents per kilowatt hour (kWh). This price will also include the costs for grid access to shore.

In early June, 2016, eleven members of the wind industry association Wind Europe issued a joined declaration containing the target of making offshore wind energy more cost competitive with conventional power generation within the coming years. At the Global Offshore Wind 2016 conference and exhibition in Manchester, England, Siemens as one of the first companies in the business is showcasing its commitment to lower the Levelized Cost of Energy (LCoE) for offshore wind power. Siemens’ offshore wind projects from 2025 onward will be capable of generating electricity at an LCoE level below eight euro cents per kilowatt hour (kWh). This price will also include the costs for grid access to shore.

Siemens is confident that they will reach their current goal of generating offshore wind power below ten euro cents per kWh by 2020. Today, 72% of this targeted cost reduction has already been reached. Almost half of that achievement can be attributed to technical improvements within wind turbines, installation processes, new grid connection technologies, maintenance strategies, and logistics.

"The offshore cost-out target for 2025 is an important milestone for us and the industry to enable offshore wind grid parity. At the same time, it combines climate protection and cost efficiency," said Michael Hannibal CEO of Siemens Wind Power and Renewables Division. "We are confident that we will lower the LCoE to below eight euro cents per kWh by 2025."

The reduction of costs by two euro cents over the following five years will be mainly based on the next generation of offshore wind turbines and cutting-edge, mass-produced offshore foundations. The annual energy output can grow by 10% under average offshore wind conditions if rotor diameters and generator output also increase by 10%.

With the blade manufacturing and wind turbine assembly in Hull, England, and the nacelle manufacturing plant in Cuxhaven, Germany, Siemens expects a boost from the highly industrialized manufacturing processes by mid-2017. Digitalization processes furthermore contain additional potential to increase efficiency within the plants, making technology even more economical.

Within foundations, Siemens is currently developing an innovative solution to be tested at a Danish offshore project in 2017. It will use gravity jacket foundations including a new transition piece made out of concrete. The grid structure will be assembled using prefabricated nodes and standard steel pipes. Siemens is currently testing the static strength and corrosion resistance of the nodes, produced in bulk by welding robots. Further leverage of cost reductions arise from improvements in offshore service concepts and progress in grid access technologies. The 588-megawatt (MW) Beatrice project in Scottish waters will utilize compact Siemens Offshore Transformer Modules (OTM), cutting costs of AC-grid connections by approximately 40%.



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