Thanks heaps one of the best easy to follow and understand pv combiner videos. I'm going to copy your build.

@easypowerwall

6 ай бұрын

These comments keep me going, thanks for the kind words. Have fun building your own, if you need info about parts, they're all in the comment section of the video..... Frank - EASYPOWERWALL.

You make great videos. Don't stop! With time, you will get a lot of subscribers.

@easypowerwall

2 ай бұрын

Thanks for nice comment. Have more plans for videos in the near future. Have a nice day. Franky easypowerwall

I have panels of the same model and specifications. Due to space limitations, I have to mount them in 3 different areas. I want to place the maximum number of panels in each area. In this case 3 different strings will generate electricity at 3 different output voltages. Can I connect these 3 strings to the mppt after making parallel connections in the combiner box? Or in such a necessity, with considering the minimum cost and maximum efficiency, what would be your solution?

@easypowerwall

14 сағат бұрын

Hi, In this case I suggest to use 3 MMPT chargers. One charger for each direction. If panels with different azimuth will be connected to the same combinerbox, this will not work properly. Good luck.

Let's say you put three modules in series which generate I_mp=13.17 A of current @STC. Your Diode will then drop 0.65 V @ 13.17 A => 8.56 W. You have four of them on a "heat-sink" (which is inside a closed box, with no air flow). That's 34 W of power over multiple hours in full sun shine. I don't think that's a good idea. You don't need these diodes. The maximum reverse current is 16 A (by your fuse). The panels are rated to handle approx 20 A (depends on the exact model). And ask yourself: when would such a large reverse current flow at all?

@easypowerwall

6 ай бұрын

Hi Sebastian, It's a 4S but will use 3S. Box is mounted against the wall facing north. Similar box for 4 string under solar panels works well, no issue. Will make follow up video in spring/summer with IR camera.

Thanks for sharing this valuable insight! I'm about to start a new project featuring the Victron low voltage charge controller. Initially, I thought I could seamlessly connect them in parallel without fussing over fuses and breakers, but it turns out there might be a safer approach. So this post from you is just in time ;-) Can it really cause a fire in the panels? Or will it just damage the panels. Btw, the link to the fuse-holders does'n exist anymore "Sorry, the page you requested can not be found:(".

@easypowerwall

6 ай бұрын

Hey Rob, thanks for your comments. The shottky diode is an extra safety feature. If the bypass diode fails and that string is in the shade, a current can flow through these cells and cause trouble aka fire. I like to built my stuff to the highest standards so I don't have to worry when I'm away from home for 14 days. Good luck build your PV combiner box. I updated the link and added links to amazon as well. If you have questions, don't hesitate to contact me, I'm on FB too, EASYPOWERWALL. Frank, EASYPOWERWALL

Thanks for sharing, interesting to see your approach. Very nice result. I was curious, howmuch power would the heat sink need to dissipate? Since the box is closed it cannot dissipate its heat really well I would assume.

@easypowerwall

6 ай бұрын

Hi....the diodes are made for 100A, withv10A they don't get warm. My other box under the solarpanels is closed all the time. It's winter now, will make some infrared images during spring/summer. In short Don't worry about the heatsink size.

@Thunderst0rn

6 ай бұрын

@@easypowerwall awesome, thanks

Hey Great tutorial, could you please confirm the peak temp recorded on these DC diods and their Brand?

@easypowerwall

2 ай бұрын

Will check temperature on sunny day. The model/brand/specsheet of the DC diodes is in the discription of the video. If you can't find it, contact me via my FB page "easypowerwall" Good luck. Franky

the link above to a DC circuitbreaker is not correct for Ali. It links to an AC circuitbreaker which is not suitable

@easypowerwall

2 ай бұрын

Thanks for the remark, indeed, the seller changed it's model. Corrected the link with model I bought. Trust me, an AC breaker wouldn't work in a DC setup. Thanks again. Franky - EASYPOWERWALL

Connector gender is determined by the electric connection, not the plastic shell. So the plastic shell that looks male is the female connector because it's metal bits accept the mating metal bits.

@easypowerwall

6 ай бұрын

Thanks for pointing out the obvious...I overlooked this Sylvan. All sharing & caring for a better & greener world. Frank - EASYPOWERWALL

The earthing

@nickgkogkas7279

Күн бұрын

Earthing is missing. SPD will not work. I am believe that earthing will be setup later.

Why Diodes? Your Solar Panels has inbuilt Diodes already

@easypowerwall

6 ай бұрын

Hey JWsolar, there's a difference between bypass diodes and blocking diodes. A solar panel has bypassdiodes, this prevents that a whole panel is OOS when there's shade on 1 panel. Blocking diodes prevent current flowing between strings. If a bypass diode dies, it can cause a fire....