• First residential platform in connection with an offshore wind farm
• Climate partnerships contribute to Horns Rev 2

Horns Rev 2 comprises 91 wind turbines. Each turbine has a capacity of 2.3 MW. Its expected annual electrical output of 800 GWh is enough to cover the annual electricity consumption of approximately 200,000 households. Horns Rev 2 is 100%-owned by DONG Energy, and more than 2,300 people were involved in its construction.

Sharing knowledge
Horns Rev 2 is situated further from the mainland than any other large offshore wind farm in the world to date. Construction at sea far from land was a challenging task, but we were able to draw on our experience from the construction of previous offshore wind farms, and also our Exploration & Production business unit.

First time in history
The residential platform is yet another example of how DONG Energy has succeeded in taking offshore wind energy to the next level. Horns Rev 2 is the first time in history that a residential platform has been installed in connection with an offshore wind farm. This reduces transport to and from the wind farm.

Climate partners have contributed to Horns Rev 2
This is also the first time that a large-scale wind farm project features climate partnership agreements, which means that each climate partner commits to buying power from the wind farm for a specific period of time.

Climate partnerships
The idea behind a climate partnership is simple: we help a company or an organisation to realise energy savings. The company may subsequently choose to use these savings to buy energy from, for example, wind turbines.

World's first foundation in both steel and reinforced concrete
Horns Rev 2 was also the first time in the history of offshore wind farm construction that a foundation consisting of a mixture of steel and reinforced concrete was used. The foundations are consequently more resistant to the extreme conditions offshore.

We purpose-built an onshore prototype to test the construction and design of the new foundations. We also trained personnel in the difficult task of mounting cables on the prototype foundation to prepare them in the best possible way for the "real" job far out at sea. The solution proved to be cost-effective as it is much less expensive to fix things onshore than offshore. Any mistake eliminated in advance benefits the economy on an offshore project.

For further information, visit the Horns Rev 2 Offshore Wind Farm webpage.