Excellent Videos

I'm curious that if I ground my roof mounted solar array, doesn't that create the potential to attract lightning to the higher grounded point now?

How do I hookup my 2 series strings to those switches? Do I ignore the 3rd pole?

TLDR: Use the same panels.

My panel have low amps 2 diodes reading and 0.971 how I should know if the functioning properly

Grounding systems are a blessing and a curse. They are a blessing because if a piece of equipment in your house fails you are much less likely to have enough current flow through your heart. They are a curse in that they actually make your home a more susceptible to damage from a lightning strike NOT less. If a lightning bolt strikes the physical Earth in your neighbor's backyard there is a MUCH higher chance of that voltage coming back up through the the grounding system than not. During a lightning event my home would be better served if I could implement an isolation switch temporarily isolating my system from the earth ground. The problem is I would probably forget to put it back to normal after the storm passed. Also, in the unlikely event that I would also have an equipment failure inside my house I would not be protected from electric shock. The truth is: MOST LIGHTNING DAMAGE ENTERS THROUGH THE GROUND SYSTEM. THE GROUNDING SYSTEM DOES NOT PREVENT DAMAGE FROM LIGHTNING IT OPENS A BACK DOOR ALLOWING IT TO HAPPEN.

It's an excellent explanatory video. Thanks!

100w is so 2019, we got 64w panel in 2000, took long time to go over 400w, they had solar panels in 1924

This makes no sense

On the Ball 👍

😀👍

I'm always so impressed with electricians' ability to quote and cite code off the top of their heads. Wish I could quote the Bible with that kind of alacrity.

such a nice explanation

Question: Is having a higher output voltage solar panel pointless in a 12V battery charging system? The one I'm looking at is 475W and 40 something voltage. Is that extra voltage "wasted" because the charge controller reduces it anyway?

Hello, DoI need separate earth rod for dc and ac in case of a solar system installation?

Thanks for the education. Are you still available for a solar RV question?

What was the wire size or gauge used to connect the controller to the battery?

kzbin.info/www/bejne/n4q8oqOdibOUrJIsi=W4eRvqHy5ulLR8Yr

Excellent video, but I would also like to see the solution to be applied in case of necessity. For example, I have panels of the same model and specifications. due to space limitations, I have to mount them in 3 areas of different sizes. 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/amps. Can I connect these 3 strings to the mppt after making parallel connections in the combiner box? Or in such a necessity, considering the minimum cost and maximum efficiency, what would be your solution?

Is 5565kwh the annual energy demand or daily? I guess the design should be based on dsily demand

thanks

how to conect solar 480w to selirs

Iam confused! Why can't you just wire all of them in parallel and let the voltage intact? If all the panels have the same voltage and u wired in parallel ur simply adding up the amperage and leaving the voltage the same, thus aswell getting 100% output! But u never mentioned that way, why?

I WILL SUBSCRIBE AND LIKE

EXCELLENT

What about the C-rate of the batteries??? Is this also critical in sizing your batteries??

How to standard IEC using to calculate that?

do you help ppl with there setup?? mine has been runing for 2 years,, but i would like some one ales to look at it cose it might be wrong..

As usual..the BEST.....

most informative video on grounding. watched few times to fully grasp everything. thanks

I ordered chep PWM 30A controller from alliexpres. Will use it to charge old 12V, 45Ah card battery. Plenty of cheap used solar panels locally, but all of them are have Voltages over 35V, some over 100V. Aliexpress charger is rated 30A and to be used with max 25V panels with 12V battery, and max 50V with 24V battery. I wan to use 180W(Peak Power) panel, Voltage (Vpm) = 36V Current (Ipm) = 5A. So if I use this 180W panel with that PWM controller and one 12V battery. Will I damage the battery, controller or only get very bad efficiency at 5A x 12V = 60W, that is 33% from the 180W panel? Since the panel costs 15$ and I have space for it in my project, I dont care for the loses, I only care if it will charge at all and not damage battery or controller.

I like how you explain things. I have to fast forward thru so many videos just to get what I was looking for. You define what function your going to teach, then it's off to the races! No wasted time, very efficiently done.

I am struggling how to connect old 400x8 Watt (40 v, 10 amp) panels to new 580x3 watt (48V, 15amp) pannels.

i hope you read the comments here as i have some disturbing info for you..The first ad to pop up from utube on your vid here was about a dual belt drive generator scam and the guy in it stresses not to buy solar.Your vid was educational and just what i needed to sort out a problem.The scam ad should be reorted but it wont let me on my end.

Merci à vous pour ce tutoriel très explicatif...

Ok. Why did you change the current and voltage ratings of the 50 watt panels? I was waiting to see how to combine them with the 15 volt 3.3 Amp rating you showed earlier.

Thanks.. But a doubt: 7:00-7:10 part. You say while in series, the current shall be limited to 2.5A! My doubt is, when the sunlight falling on the 5A panels is capable of producing 5A and the load is capable of eating out the 5A, won't the 5A current flow through the 2.5A panels resulting heating up and damaging them??🤔 Please clarify 🙏

I’ve never heard an electrician, technician or anyone else actually try to pronounce AWG as a “word”. (I’m a military drone tech, amateur radio operator and avionics tech and no one has ever said AWG as “Og”.)

Lot of the solar coding requires on a DC setup side to have the neutral (negative)wire hooked up to the switch now. You can't wire nut it or buss bar it

I like it

Hey I found a link to a little trick that makes it easier to get that number for wire into the terminal. kzbin.info/www/bejne/bHrJlqSprKqgb5Ysi=VNxsaldEB5IGUFCQ

sir please help me, 3:55 The data I have in the "SI_EF_TILTED_SURFACE_OPTIMAL_ANG" section shows ANN -999.0. how can i get the correct value? Thank You. my coordinate -6.924497, 108.461269 sir please help.

Thanks for the video. Are you saying that there should be a grounding system on the roof that covers the perimeter of the solar panel array, and that should be connected to its own copper rod in the ground? The frames of the panels themselves should then all be tied together and be presented to the earth terminal in the solar controllers or if using a solar inverter, to the inverter itself? I am completing a 40ft catamaran which has a 6kw solar panel array, two 10kw solar inverters, two 45kwh LiPO4 lithium battery banks and two 15kW electric outboard motors. I will be running the two hulls independent of each other, with 3kW of solar going to each solar inverter. I was thinking of doing four spike charge dissipators at the corners of the catamarans roof which would be linked together with 70mm2 cable. During weather that posed a risk of a lightening strike, I was going to then fit 4 removable large copper cables which would be attached to the spikes and draped into the water. None of this grounding would be attached to the frames of the solar panels, but would be to try to keep the charge of the localised sea area and the surrounding air above it, at an even voltage thereby reducing the risk of attracting a lightening strike. The cat is a solar cat so no mast to worry about. Does that solution sound likea good idea?

Wtf if I’m looking to see what size controller I need I don’t need cave man explanations as to what they are.

Excellent. Now, why do the PV installers not run a ground from the ground mount, via the wiring trench, to the ground rod which is going to be near the entrance panel/meter base?

Your a good teacher in a clear way

Great video! Just what I was looking for, a clear explanation of the different types of combinations of PV panels. Greetings from Argentina.

The best video that analyze this topic. Thanks

How much to do a zoom call and give me some advice?

Something every mismatch solar panel video fails to mention is the Diodes. The lower value diodes in smaller panels must be changed to the value of the diodes your highest output panel .