
The sites may be irregular in shape and adjacent developments can be in close proximity to each other. Various industry websites exist that provide updated information on wind farm sites on operation and in planning such as The Crown Estate and Crown Estate Scotland.ġ.3 Wind farms can be very large, some approaching 400 square nautical miles. There are also several sites in the planning stages around the north and east coasts of Scotland and the Celtic Sea. These are mainly located in the East Irish Sea, the southern North Sea (areas off the Humber, the Greater Wash, East Anglia and the Thames Estuary), Firth of Forth and Moray Firth.

At present most are wind farms, though tidal and wave energy installations are being developed and some installations have been established which may be close to shipping routes.ġ.2 In November 2022, 44 offshore wind farms were operational, and a further 15 were in the post-consent or construction phases. Information is provided to enable appropriate voyage planning decisions to be made.ġ.1 The number of Offshore Renewable Energy Installations (OREIs) in UK waters is increasing.At present most OREIs are wind farms, though installations using wave or tidal power have been established off the UK coast.Offshore renewable energy installations present new challenges to safe navigation, but proper voyage planning and access to relevant safety information should ensure that safety is not compromised.This Marine Guidance Note (MGN) highlights the issues to be considered when planning and undertaking voyages in the vicinity of offshore renewable energy installations (OREIs) in UK waters.
