our solar panel setup

May 16, 2007
1,509
Boatless ! 26 Ottawa, Ontario
A few people have asked about our solar setup. I have now some better pictures I think will illustrate what I did.

I built the frame out of 1" s/s pipe and off the shelf fittings. After the frame was completed I drilled all the fittings and added s/s pop rivets, I don't trust the set screws supplied.

I used Gemini mounts to add two 1.25" aluminum angles I had from a previous project. The Gemini's allow the angles to be moved to align with the mounting holes in the panel frame. The aluminum angles extend past the end of the bimini and are cantilevered to verticals from the pushpit. The aluminum angles were sand blasted and clear coated. The Gemini mounts have nylon insulating washers to minimize corrosion.

Lots of triangles makes for a very sturdy frame. The frame feels like it would handle chin-ups, if I could do one :redface:.

The Hunter arch provides a solid anchor for the forward end of the frame, and a nice sched 40 s/s conduit to run the wires in.

The Kyocera panel is large, 68" x 52", 60 LB's, 325 W. With a 40 volt output we could get away with #10 wires running through the Hunter arch to the cockpit lazarette.

We bought the panel from eMarine in Ft Lauderdale for $378, a reduced price as it had a scratch on the aluminum frame.

The MPPT controller is a Rogue unit (as suggested by Maine Sail, tnx) with a nice display showing all the data we could want.

We are in Florida. The solar panel can supply all our needs if we have 3 out 4 days sunny. We have a 400 Ahr AGM house bank. They are usually on float by 1 or 2 pm in the afternoon. We are living aboard now. We have a large refrigerator and very large ice box. Almost all our lights are LEDs including our anchor light.

Without a backstay and our boom moved to one side we have been able to avoid any shadow issues.

Bob

(yes, our stern light will be moved out to the end of the aluminum angle !)
 

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Johnb

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Jan 22, 2008
1,505
Hunter 37-cutter Richmond CA
Thanks for the write up, that's a bunch of good ideas and information.
 

BobT

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Sep 29, 2008
239
Gulfstar 37 North East River, Chesapeake Bay
For those of us with osprey or cormorants for neighbors, consider adding some pitch to the solar panel. On a mooring, ours became a picnic table covered in fish bones and guano within a week when is was set flat.
 
May 16, 2007
1,509
Boatless ! 26 Ottawa, Ontario
I agree birds can be a real problem. We are living aboard with a guard dog so not any problems like that so far. There are lots of sport fishers in this marina with the fish cleaning table not that far from our slip, so we see lots of squadrons of pelicans and other birds. Charles makes sure none land on our boat, even it they are much bigger than he is :D ! I just moved the stern light up and back to the aft edge of the panel. Next job, fab up two aluminum guards to ensure the mainsheet can't catch on the corners of the panel when the main tacks. We should be ready to leave on our cruise by the 20th as planned. Bob
 

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May 16, 2007
1,509
Boatless ! 26 Ottawa, Ontario
Thanks Paul, I think it worked out well, it is functional and does not dominate the look of the boat. It is actually hard to see with the black panel frame and navy blue Sunbrella bimini. We did loose our window to check the sails. Our mainsheet and jib sheet winches are on the cabin roof so we adjust them from up there anyways and can watch the sails easily enough.

The panel now supplies all our power. We have a 0.5 amp parasitic draw, I guess it is our 3 CO detectors and bilge alarm. Usually overnight we consume about 40 AHrs, from lighting, refrigerator and freezer, we usually get that back and are on float by early afternoon.

We had a very rainy day yesterday and did not get back up to 100% SOC. It looks like we will get some sun today and maybe catch up. The most I've seen coming out of this 325W panel is 265W. I'm not sure if that is the most I can expect without being able to orient the panel to optimize the yield.

Bob
 
Oct 2, 2008
3,811
Pearson/ 530 Strafford, NH
You need more toys to suck up that extra energy, maybe a Jacuzzi!

All U Get