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The Norfolk Broads Forum / Broads Boat Owners Q & A / Solar setup
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Posted By Discussion Topic: Solar setup

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jimfin
Mar-29-2020 @ 2:52 PM                           Permalink
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We have one solar panel fitted and it's about 106cm x 80cm. I have forgotten what power it is. It's a Perlight panel as seen in the pic. Can anyone I'd it for me.

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jimfin
Mar-29-2020 @ 3:01 PM                           Permalink
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Another question I have is re. what type of MPPT to fit!!
1 have 1 110a engine and 3 x110a domestic.
What size MPPT should I have fitted??

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Paladine
Mar-29-2020 @ 3:45 PM                           Permalink
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I'm presuming you have a 12v set-up.

The size of the panel won't tell you what the output is. Can you get to the junction box, where the lead exits the panel? There should be something on the cover to tell you what you need to know.

This site https://www.bimblesolar.com/mppt has all you need to know. I doubt whether the panel can put out more than 240w, so if you have a 12v system, a 20a MPPT controller would be ample.

The number and size of batteries don't affect the MPPT size required. It's the panel output that is key.

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annville
Mar-29-2020 @ 7:10 PM                           Permalink
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Hi Jim For that size you would be looking at a max of 180/200w= 15/18 amps a 20 amp mppt would suffice But!!! if you decide/might  increase the number of panels in the future i would recommend a 40/50 amp mppt, these are not much more expensive and as many people find when they have had solar they find it  is so good they then want to increase the number of panels and then have to buy another controller and throw the first one away as you cant run them in parallel.The size of the engine has no effect on solar panels these are connected direct via a fuze to the battery's before the isolating switches Photo electronic or Bimble Solar are good sites to look at for advice.  John


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