Water and battery power are the things we need to replenish most frequently. That’s why we went to top those up so we could stay still while the storms pass over. We have now experimented with charging the batteries with the boat stationary, by disengaging the propeller while running the engine, and found it works quite well. It isn’t as interesting as cruising and it makes less efficient use of diesel than when it is charging and moving, which is why we are reluctant to try this normally. It is also noisy, but you don’t need to do it all day and it is less loud inside the boat than outside, so it is a good back up. It doesn’t get us any water of course. Outside right now, it is noisy with the wind and there is plenty of water! We are safe inside.