Siemens is pushing the boundaries of wind turbine tech
Europe’s largest engineering firm is moving to build a state-of-the-art wind pilot project off the coast of northern Denmark.
Nissum Bredning Vindmøllelaug and Jysk Energi placed the winning bid for the 28MW Nissum Bredning Vind farm following a tender from the Danish Energy Agency (DEA). Siemens is going to supply the project with four of its seven-megawatt direct drive wind turbines along with its new ‘gravity jacket’ foundation solution. The 66kV voltage system comes equipped with new transformers, cable and switchgear systems and tower and controller settings.
The DEA expects that the elements to be tested will bring savings in the realms of both capital and operating costs. It’s believed that the levelised cost of electricity (LCoE), a measure which compares different methods of electricity generation, will also be improved as a result of the new additions.
The turbines at Nissum Bredning Vind will be connected to the grid using the 66kV voltage concept as well as a newly-engineered cable. The higher voltage produces lower energy losses and lower costs for cabling. Additional savings will be found in the slim turbine tower prototypes designed to suit jacket foundations, which are structurally stiff and resistant to the force of waves.
The project will benefit from a feed-in tariff of €0.09 per kilowatt hour for the first ten years of its life.
“We are proud to be part of Nissum Bredning Vind offshore wind power plant. Since the Danish Ministry of Energy tendered the project as an official test bed for new technologies and integrated design, we’ve looked forward to this exciting project,” said Michael Hannibal, CEO Offshore at Siemens Wind Power and Renewables Division. "This gives us the opportunity to simultaneously test and promote our innovations to achieve further cost reductions in offshore wind."
The installation of the four turbines at the site is scheduled for next summer, with commissioning to take place in the third-quarter of 2017.
Drax advances biomass strategy with Pinnacle acquisition
The Group’s enlarged supply chain will have access to 4.9 million tonnes of operational capacity from 2022. Of this total, 2.9 million tonnes are available for Drax’s self-supply requirements in 2022, which will rise to 3.4 million tonnes in 2027.
The £424 million acquisition of the Canadian biomass pellet producer supports Drax' ambition to be carbon negative by 2030, using bioenergy with carbon capture and storage (BECCS) and will make a "significant contribution" in the UK cutting emissions by 78% by 2035 (click here).
This summer Drax will undertake maintenance on its CfD(2) biomass unit, including a high-pressure turbine upgrade to reduce maintenance costs and improve thermal efficiency, contributing to lower generation costs for Drax Power Station.
In March, Drax secured Capacity Market agreements for its hydro and pumped storage assets worth around £10 million for delivery October 2024-September 2025.
The limitations on BECCS are not technology but supply, with every gigatonne of CO2 stored per year requiring approximately 30-40 million hectares of BECCS feedstock, according to the Global CCS Institute. Nonetheless, BECCS should be seen as an essential complement to the required, wide-scale deployment of CCS to meet climate change targets, it concludes.