Re: Solar and shade

Kelly Ran

Hi Joerg,

We installed 500W worth of panels on our bimini - 5 x 100W. We did not have the budget (or eye) for a solar arch.
I designed the system such that each panel has its own charge controller. When not sailing, we bring the boom to one side, so only one panel (out of five) is shaded at any given time.
In the Caribbean, we got 80+ Ah each day (@ 24V), which covered most *but not all* of our energy needs.
In peak summer in Boston, we can stay on the hook indefinitely (many sunlight hours and less refrigeration power needed).

kelly + ryan
SM233 Iteration

On Sun, Sep 29, 2019 at 4:52 PM Paul Brown <feeder.brown@...> wrote:
Thanks for the image and thought Joerg 

I think the only productive way over the wheel house is again as you’re plan, 1 panel on either side of the boom with separate controllers or both panels wired in parallel is optimum. 1 panel covering that area would not be very productive as it would be shaded most of the time, even the shading from stay wires will greatly reduce production of that and any other panel connected in series. The most productive position is aft over the dingy davits and if possible above the height of the mizzen boom, I expect this is why there are so many solar arches added to the aft these days...

Kind regards Paul 

On 29 Sep 2019, at 9:02 pm, Joerg Esdorn via Groups.Io <jhe1313@...> wrote:

very helpful, yes, thanks much Paul.  I have 400W in the same space - that's an easy upgrade.  I figure I can install at least 500W on the wheel house.  Space available over the fixed portion up to the opening hatches is about 1300 long x2100 wide - so could have 2 panels with separate regulator - one port, one starboard.  I have to find panels that are 1300 long and about 1000 wide.  Remember that my main sheet isn't an issue because it ends on the mizzen mast, not the wheel house.  But A55 No. 3 with your mainsheet setup has one panel and the owner is very happy with it.  See pic.

Cheers Joerg

Joerg Esdorn
A55 Kincsem    <Ozouri solar.jpg>

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