On our Bayfield 29 we had two old panels, on the top rail, both tiltable. We usually ran with them up, tilted for the sun. When our old alternator died we were able to do fine for over a month of cruising (Sea of Cortez) with just these panels (for start battery of old ICE and house). It was less than 100watts of panel. But we are pretty minimalist on energy use.
Currently hoping to convert to electric propulsion and 100% solar, again with mostly sailing and low energy use in house....we will see!
Dan
sv Rumiko
--- In electricboats@yahoogroups.com, "Roger L" <rogerlov@...> wrote:
>
> Neat idea. Come to think of it, I have seen boats with panels mounted from the top rail on two hinges .....so that they probably had the ability to be tilted out and propped in that position. But now thinking back on it I don't think I've ever actually seen a an instance of someone having them tilted out. Maybe I just didn't notice.
> Roger L.
> ----- Original Message -----
> From: R&M Mair
> To: electricboats@yahoogroups.com
> Sent: Wednesday, July 10, 2013 8:27 AM
> Subject: Re: [Electric Boats] Re: Costs of running a small electric boat
>
>
> When you mount on the "outside" lile we did you can make them pivot. We adjust as the sun moves or as the boat heels. Two pannels keep the drive batteries up and can provide charge to the house which has its own pannel but that gets shaded half the time by the main.
> Richard.
>
> Roger L <rogerlov@...> wrote:
>
> >Outside? Does that mean that on Meander your panels are mounted near vertically? I've wondered how much incoming energy is lost by mounting them vertically....say along the sides of the boat where the panels obviously lose primary sun, but gain in reflected light. I guess anyone can figure out the theoretical from Jan Kreider's formulas, but real world data is more interesting. And it dominates.
> > Roger L.
> >.........................
> >----- Original Message -----
> > From: cire
> > To: electricboats@yahoogroups.com
> > Sent: Wednesday, July 10, 2013 5:28 AM
> > Subject: [Electric Boats] Re: Costs of running a small electric boat
> > I know what you mean about sails and shade. Meander is a 32' ketch - Seawind II. I replaced the last 10' of lifeline with ss rail - tubing - to be able to mount the panels outside.
> > eric SV Meander
> >
>
>
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>
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