Solar panel installation.

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S&J

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Joined: 30 August 2014
Location: Perth WA / Med
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Posted: 04 August 2024 at 15:28

Yes, i have 800W of panels and the max I generally see is 3,500Wh in a day. This is very similar to the others. [Edit,: corrected my units!]

Edited by S&J - 04 August 2024 at 15:31

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Sahinsair

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Posted: 01 September 2024 at 10:56

I have installed 2×160 and 2 × 155 with 2 × 100/50 but unfortunately that is not enough..ewen I have installed 2 more Victron 165 battery I have never seen float the batteries .

I was planjing to add 3 more 100 w panels but electrician who was installing said that you shouldn't install together wiylth others and you should use another mppt. Byt some others said no problem. I really confused. What is your opinion?

marsella

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Posted: 01 September 2024 at 12:05

Depends on whether you want parallel or serial connection of the new and existing panels. For parallel connection, the voltage will be the same, the current will increase, therefore the amperage rating of the MPPT, and the wire gauge that is used to carry the current from existing panels need to be considered. For serial connection, the voltage increases, the current remains the same, therefore old mppt and wires can be utilized, but the problem comes if the area is subjected to shadowing, in which case once one panel shuts down, you will not get any power from all serially connected panels.



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S&J Members Profile Send Private Message Find Members Posts Add to Buddy List Admiral Joined: 30 August 2014 Location: Perth WA / Med Status: Offline Points: 1371	Post Options Post Reply Quote S&J Report Post Thanks(0) Quote Reply Posted: 04 August 2024 at 15:28
	Yes, i have 800W of panels and the max I generally see is 3,500Wh in a day. This is very similar to the others. [Edit,: corrected my units!] Edited by S&J - 04 August 2024 at 15:31
	H458 #159 Primal Mediterranean cruising

Sahinsair Members Profile Send Private Message Find Members Posts Add to Buddy List Lieutenant Commander Joined: 14 January 2023 Location: Kaş Status: Offline Points: 68	Post Options Post Reply Quote Sahinsair Report Post Thanks(0) Quote Reply Posted: 01 September 2024 at 10:56
	I have installed 2×160 and 2 × 155 with 2 × 100/50 but unfortunately that is not enough..ewen I have installed 2 more Victron 165 battery I have never seen float the batteries . I was planjing to add 3 more 100 w panels but electrician who was installing said that you shouldn't install together wiylth others and you should use another mppt. Byt some others said no problem. I really confused. What is your opinion?

marsella Members Profile Send Private Message Find Members Posts Add to Buddy List Rear Admiral Joined: 21 June 2022 Location: Antigua Jolly H Status: Offline Points: 592	Post Options Post Reply Quote marsella Report Post Thanks(0) Quote Reply Posted: 01 September 2024 at 12:05
	Depends on whether you want parallel or serial connection of the new and existing panels. For parallel connection, the voltage will be the same, the current will increase, therefore the amperage rating of the MPPT, and the wire gauge that is used to carry the current from existing panels need to be considered. For serial connection, the voltage increases, the current remains the same, therefore old mppt and wires can be utilized, but the problem comes if the area is subjected to shadowing, in which case once one panel shuts down, you will not get any power from all serially connected panels.