After Samsø Offshore Wind Farm, the first offshore wind farm ever in Denmark, had its electricity production permit extended earlier in June, several offshore wind farms are now following suit and having their permits extended by the Danish Energy Agency.
This time it is Nysted Offshore Wind Farm on Lolland and Middelgrunden Offshore Wind Farm in Øresund, which have been given the green light to produce electricity for 10 and 25 more years, respectively. This is stated by the Danish Energy Agency in a press release.
- It is positive that offshore wind turbines that are over 20 years old will have the opportunity to continue producing green electricity for many years to come. This is first and foremost beneficial for the green transition. But it is also sustainable from a resource perspective that the plant can continue to operate safely and responsibly for a longer period of time, says Stig Uffe Pedersen, Deputy Director General of the Danish Energy Agency.
Middelgrunden was originally granted a permit in 2000, while Nysted followed in 2003. The owners behind the parks have applied for the extensions and have been granted one based on, among other things, an independent analysis of the remaining life. Annual, extended service inspections are also required.
Nysted Offshore Wind Farm, owned by Ørsted, PensionDanmark and Stadtwerke Lübeck, has 70 turbines with a capacity of 161 MW – enough for over 130,000 households. Middelgrunden, which is backed by HOFOR and the Middelgrunden Windmill Association, has 20 turbines that can supply approx. 20,000 households.
Economics must be recalculated
However, with the extended permits also come new requirements, and therefore HOFOR will recalculate the project's economics before the future of the turbines is finally clarified.
- The permit comes with a number of conditions that affect the production from our wind turbines. The permit's conditions follow the latest developments in permits and changed practices for handling bats, which presumably means that the turbines will have to be turned off for longer periods in the future. The requirements, combined with the current market conditions – especially rising component prices and falling electricity prices – mean that we have to calculate the economics again, now that we have the overall picture of the project's terms and conditions. We are working purposefully to secure more green energy for the capital, says Kristine Grunnet, Area Manager for Supply Strategy at HOFOR.
Rønland Offshore Wind Farm and Horns Rev 1 also currently have applications for extension of electricity production permits with the Danish Energy Agency.
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