Hi Sean,
Land based systems are finding that cogeneration is more efficient, driving the A/C compressors directly from the generator ICE as well as cranking an alternator rather than generate only electricity and then run electric A/C units. But I haven't seen any company that is doing that in the marine market yet. I'm sure that if there is a company out there that has an off-the-shelf, somebody in the group will identify that company.
Fair winds,
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, "seansullivanjobs" <seansullivanjobs@...> wrote:
>
> Replying to all discussions in this single post... thanks, guys!
>
> Steve:
>
> Hi Steve. I have a very high performance Kurt Hughes cruising catamaran which has no engines at all. To give you an idea of the type, it's just like a Gunboat 48. Very similar numbers. It's a blank canvas. Brand new build... which is the reason I'm considering the electric propulsion. There are major advantages to being able to support massive HVAC loads easily if already producing power to move the boat.
>
> My wife and I do charters for a living and this is our new charter boat. We run a professional galley in the "crew hull" and serve 3 gourmet meals per day, plus snacks. Our guests also run hair dryers, we microwave and guest comfort (massive HVAC systems) is a top priority.
>
> We charter in North America and the Caribbean. I've consecutively owned a boat for the past 20+ years and have lived aboard full time since the early 2000's when we started chartering. So "world cruising" with extra demands for charter guests is probably the best way to sum up the usage.
>
> Budget? I'd have to say no more than a typical diesel installation. Same cost as installing a pair of Yanmar 3YM30's and a genset. That would be my maximum budget. That means the packaged products are not in my price range. If I go electric, I have to build it myself using industrial components, not overpriced marine stuff.
>
> I actually agree with those naysayers... sorry! :) Performance is my top consideration here. My goal is to have props clear of the water when sailing. It makes a huge difference... a coupe knots... having no props there. A couple knots is nothing at 20 knots, but it's quite a big deal at 6 knots. My main goals for going electric are:
>
> 1) Having props clear of the water when not in use
> 2) Producing enough electricity to run HVAC - for instance, shut down one side's propulsion and send the extra energy into HVAC.
>
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