so what, basically for smaller gauge wire down to the battery room or longer runs? i figured i'd run the phattest, biggest, heaveist wire i could from the panels down to the battery room. do micro-inverters increase the net output or drop the losses that much? i think of AC to DC or DC to AC as semi expensive en devour as it isn't ass efficient as DC to DC conversion.
but, if all i want to do is run ALL of my panels in parallel i would need some hefty wire to handle the amps though?
You will need individual fusing of the solar panels. And big wires — look at the ampacity charts and do some math.
series has a big con too, each string is Fubar the second you get a leaf or some dirt on it!!!! they require lots of maintenance!
Nonsense. Modern string systems deal with such things quite well. Half cut cells, bypass diodes, very smart MPPTs.
There's about 3 million such systems in Australia. It's the normal arrangement for grid tied PV here. MIs and optimisers (e.g. Tigo, SolarEdge) are much less common due to cost - any production benefit is rarely makes up for the significant extra cost. More panels is a much cheaper option to make up any deficit. Normally such panel level optimisation is used for dealing with complex roof designs, strings of variable sizes.
I've got a challenge for you. I lock you in my shipping container where the inverters are. I put a leaf on one of the panels. All you have to do is identify which string is now Fubar as a result of the leaf. You get it wrong, you stay in there. How confident are you in your statement?
This really is nonsense .... plain and simple nonsense.
whats an optimizer or where can i learn about them? also those aren't crappy enough, i'm looking at the eg4 18kpv
every time i see a youtube video from in the last 3 years they are ways talking about how they have to go out every other day and clean them off. my back is getting worse.
i'd be a kid in candy store! oooohhh look at that!!! ooooh and that!!!
thats sad, that tells me the US is still the dark ages if in 2021 people still getting OG installs, but, with all the money big power has put in banning PV in some areas and the FUD spread around.
yup just more confirmation i have a lot to learn!
Social media tends to promote things to us we've seen before or have liked as it figures that's what we are interested in watching/reading. It doesn't care if the content is valid, only that you watch it as they earn revenue from clicks, views etc. Being correct isn't valued, being popular is.
With that inverter you need to put panels in series. It won't do anything on one panel. You're probably looking at a string of 8+ panels. See the ranges on the MPPT voltage? If you are worried about the shading from a leaf, you will want to be well into the normal PV voltage range.
Well that's nonsense! My solar has been up for 6-7 years. I've cleaned it twice. Once to get the ash off after forest fires in the area. I barely noticed the improvement. The second time, I was just adding more panels and didn't want the old ones to stand out.
There are amp spec on the inverter too, use the spec sheet. It will help you.
What? Series strings are the right way to go, up the voltage, get smaller wiring more efficient strings. This is a US thing, it's an electrical engineering thing.
Whoever that is, stop watching them!
