The problem is that you are not talking about power usage, or if you are you have shown no evidence that you have a clue. You also don't seem to grasp that ANY power you use has to be put back, and without a shore line that is the problem. Don't compare apples and bananas. You are talking about a tiny GRP boat and seem to be comparing it to an all electric narrow boat that will be at least twice its length. Even so the all electric boats usually have inbuilt diesel generators - not a small out board with very limited charging ability. To the best of my knowledge there are no small all electric narrowboats that can go days without charging when away from shore based mains unless they have a generator. You will see small all electric day boats, but they return to base each evening to recharge the batteries. So far you have come across to me as yet another dreamer who is convinced he is right and rejects all well-founded advice that this is not so. We get several a month on this forum. Recommend away, but why experienced boaters have any need to look at it is beyond me. As you seem to think the van lifers have all the answers for you why did you ask your question here? I am sure there are van life forums who will advise you on inland UK boating. You probably don't like having the impracticalities of your proposals pointed out, but it is your money and your choice. Just go ahead with you floating van life ideas and if they work out without much expense or living in close to squalor I would applaud you. If they don't then you will have had an expensive learning experience. Remember that living a reasonable and fully legal life on a boat is likely to cost something similar to bricks and mortar. Fully legal residential moorings with an electric hook up is likely to cost several thousand pounds a year with ones in London costing over £10,000 a year. Living "under the radar" on a leisure mooring will be a lot cheaper, but you may then be told to get out at a moments notice with no option than to load the stuff you have in their storage unit onto your boat and go.
