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Old 17-12-2018, 19:01   #1
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panel recommendation

I have two 110 watt Solarland panels and need to generate more power. Instead of a costly solar arch renovation to add 2 more panels, I am thinking of a minor retrofit to the arch and replacing the existing panels with 2 panels in the 250 watt range.

Can anyone recommend a brand and or model of high quality panels to achieve this upgrad

Thanks for your help
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Old 18-12-2018, 04:12   #2
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Re: panel recommendation

All are the same , as far as they are rigid .
If you have an mppt.prefer high voltage panels .
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Old 18-12-2018, 07:50   #3
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Re: panel recommendation

My panels are identical.
I have a Morningstart MPPT TS45 controller with room to control the additional panels.

I have noticed that on a friend's boat, his 254 watt panels are 44v but only produce 5.8 Amps. I dont understand why they make so few amps. i thought that the higher amperage panels replenished the batteries faster.
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Old 18-12-2018, 08:07   #4
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Re: panel recommendation

They do , the bigger the panel the more power it can harvest .
low performance can be effected from unlimited parameters.
Charger

Shading
Cabling
Series or Parallel connection
Positioning

are some of them


my 100 watt 36v solar can produce up to 6 amp at full sunlight with an mppt charger and 300 to 400 what hour per day.
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Old 18-12-2018, 09:54   #5
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Re: panel recommendation

Quote:
Originally Posted by Onemoreproject View Post
My panels are identical.
I have a Morningstart MPPT TS45 controller with room to control the additional panels.

I have noticed that on a friend's boat, his 254 watt panels are 44v but only produce 5.8 Amps. I dont understand why they make so few amps. i thought that the higher amperage panels replenished the batteries faster.
Well 254 divided by 44v is roughly 5.8a. The MPPT controller will then turn that into close to 17a at say 14.8v
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