Join Date: Mar 2003
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my two cents
Well I use to own a westsail 32 with a Adler Barbour unit in the ice box, a lap top, auto pilot, etc. No separate freezer, no TV. On Gulf of Mexico crossings, from Pensacola no need to run the engine at all and my marine Air, (noise was a pain sometime) wind gen worked well. In 15 knots true, on the wind or beam reaching, I could get by with running the wind gen for only 5 hours a day. In lighter air more time was needed but hardly ever 24 hours a day. More like 12 hours if wind was under 10 knots, but even then if you are making 5 knots you still get lots of juice.
On the hook what few places I stayed on the hook were relatively open. But I am looking at a Kiss system for my boat. It puts out more and makes less noise (much less as one guy had one in my marina and you could hardly hear it) But I also plan at least two solar panels. The wind gen is self regulating which I liked. (so was my last one) So solar will be new to me. But if one can get 5 days or so without running the engine using solar and wind combined, well that works for me. I don't mind cranking the engine on that sort of schedule.
I have a larger boat now, and have not done any offshore or coastal sailing much, no time. But my old boat needed about 75 amps a day to run everything. On my present boat, I don't have anything else to run (I forgot that on both I had an SSB) But I assume 75-100 amps a day will work just fine. (I have an inverter on the new boat and microwave so I wonder) But I would think I would get at least 2 amps and hour at anchor with a wind gen (though likely more) at 10 knots and have not ever been in a place where I did not have at least that much wind 80 percent of the time. Then with the solar giving me 35 to 40 amps and hour, I think cutting back on use when there is not much wind or no sun will work just fine.