Thought it was time I posted my experience with charging on ferries to/from the UK and any charging possibilities. So far I have the following: 1. P&O Ferries Europort to Hull Crossing takes approximately 15 hours so charging on the boat is useful. Two boats currently on this route, Pride of Hull and Pride of Rotterdam I mention this as the UMC will only work on the Pride of Hull. The Pride of Rotterdam has centre tapped earth which the current UMC does not support. You will need a plug conversion as the sockets on both boats are the small blue 3 pin 16amp single phase. You need to turn it down to 10amp otherwise it will drop out during the voyage. I found it best to book with priority loading so they can find you a space next to a socket. However on Pride of Hull you do loose the priority offloading as their sockets are not in the priority area of the car deck. 2. P&O Ferries Calais to Dover Crossing takes about one and half hours so charging on the boat is not very useful. No charging on board. 3. Eurotunnel (not a ferry but a way across the Channel :wink No charging either at the terminal or on board the trains Actual crossing takes about 35 minutes so charging on train is not very useful. I always book for "higher than 1.85m" so I get a place in the wider carriage as the normal carriage is only just wider than the Model S. Please add your experiences of charging on-board ferries in Europe to this thread.