The concept of using vessels as hotels, or floatels, accommodation vessels, or recently, SOVs, or whatever name you give them, has been available in the market for a while. With some of the current and more future projects being built further at sea in harsher sea states this concept is now gaining ‘ground’. Not only do the existing vessels, mainly converted ferries, continue to help out at wind farms, either during construction, or later, in the O&M phase, new designs specifically optimised for these wind farms further offshore are now also being introduced.