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Old 29-04-2015, 12:49   #31
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Re: Assorted solar panels 20w to 110w

I had a significant typo in my last post. Should have read "...2 hours per day LESS production". You can stop scratching your head now.
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Old 29-04-2015, 13:24   #32
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Re: Assorted solar panels 20w to 110w

Noelex,

this is one source of the Sunpower shading claims. It isn't oranges to oranges for hard line shading, but has some good data:

http://us.sunpower.com/sites/sunpowe...conditions.pdf

The key graphic is this one (if you don't want to read the whole thing):

Click image for larger version

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Old 29-04-2015, 14:38   #33
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Re: Assorted solar panels 20w to 110w

Thanks for taking the time to pull that up, much more academic response than I was prepared for but more accurate. The harbor is full of boats trying to leave, very busy at this end.
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Old 29-04-2015, 15:20   #34
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Re: Assorted solar panels 20w to 110w

Quote:
Originally Posted by Dsanduril View Post
Noelex,

this is one source of the Sunpower shading claims. It isn't oranges to oranges for hard line shading, but has some good data:
Thanks for the link
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Old 30-05-2015, 11:51   #35
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Re: Assorted solar panels 20w to 110w

Thank you all for your support, I have completed the installation and it is charging now. I ended up using the 3 largest panels attached to my hard dodger and wired in parallel. Decided on the new mastervolt MPPT 25 solar charger. Thanks again!

Sent from my VK810 4G using Cruisers Sailing Forum mobile app
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Old 30-05-2015, 14:04   #36
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Re: Assorted solar panels 20w to 110w

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Thank you all for your support, I have completed the installation and it is charging now. I ended up using the 3 largest panels attached to my hard dodger and wired in parallel. Decided on the new mastervolt MPPT 25 solar charger. Thanks again!

Sent from my VK810 4G using Cruisers Sailing Forum mobile app
Sounds great!

Let us know what kind of amperage you see out of it!
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Old 30-05-2015, 17:52   #37
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Re: Assorted solar panels 20w to 110w

Great glad to hear
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