Desperation
Some years ago, I was in a place where it would take six weeks to get a replacement fuel tank built, which I did, and in the meantime I had to have more power than my solar panels would put out. I bought a used Honda 350 generator (only thing I could get) and it really IS quiet, but very small. You could share the cockpit with it and conduct a conversation. I ran my battery charger through it (be careful on sizing....battery chargers have a "power factor" which can make their current draw almost double what you would expect when you calculate watts), and in general everything worked fine. I still have the little generator as a back up for moments of desperation, although my current solar array will handle everything, including refrigeration and water maker. But, you never know. Oh the other hand, a well known cruising couple down here in Mexico, who are amongst the most active, even sailing back and forth from the US every year (emphasis on sailing), have opted on a Yamaha generator. They love it, and they have a very power intensive boat. At anchor,they set it up on the bow and let 'er rip. It is a bit noisy, but not awful. They feel it is the easiest and cheapest answer to their power problems, and he is formerly an electrical and electronics tech, so he does know something about it! Every few years they buy a new generator.Personally, I am always astonished by the amount of gasoline that they carry, which is something I would not do, but it has certainly worked well for them. And, I would imagine that many people whose cruises are much shorter or less serious than my friends', might well find that a little gas generator makes more sense than the elaborate systems we tend to put together. Do go through the battery charger, however, and that is a must.