Honda
Heard an EU1000 at the Annapolis boat show this year. Very quiet. My thoughts are that on the open transom boats they would perch very nicely out of the cockpit, held down with at bungee cord. Plug in the shore power cord and you are in business. On older, closed transom, boats I have thought of placing a Honda in a hard dinghy, or RIB. With the generator off the main boat, it could be the most quiet way of generating power of all, other than solar. Run a small air conditioner, charge batteries, and anything else that needs AC power as long as you demand <1000 w at a time. All for 10% of the cost of a built in diesel generator. Unfortunately it requires gasoline. If you carry gas for an outboard, you just have to carry more. I have not bought one yet, but it seems to be a viable alternative to, and maybe less expensive than, solar panels, wind generators, and running the diesel.