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I've come across this myself, for some reason some people think you can't run multiple MPPTs in parallel- the usual reason I have heard is that they 'fight each other', which is obviously nonsense- each MPPT sees the battery as its sink as usual- they don't care what the other/s are doing- if...

Bop ;-) In the Darling Downs west of Brisbakers... (You probably heard about the Qld coppas being shot a little while ago, well thats 'relatively close' that happened about an hours drive from me...) Scary- Where that happened was on the western side of a natural bushland area- I'm on the...

My 12kw one took three people to manhandle it into the cab of the truck- and I used the tilt-trays winch to unload it... 72kg/160lbs...

LOL- Welcome to the 1970's guys... (just watched that video- thats how off-peak HWS systems have worked for decades in Australia) (never seen any with pipes running out the top though- is that a common thing in the US???) That's a typical Aussie HWS (250l for 1 to 2 people, 300l to 400l for a...

Wells don't work here- no groundwater... We can have a bore drilled, but the water at 400m is unsuitable for drinking (for humans or animals) and you have to go down 800m-1200m and have a fully cased bore to get to the drinkable water- thats a fully cased bore drilled down 4000ft... Expect to...

BTW, you appear to have two identical threads atm

It isn't always easy to tell them apart visually, but the good old cigarette lighter test shows if you have CCA cables or not... Easiest way (and doesn't need cutting off any terminals) is just strip back a bit of the insulation (just slit it and 'dig out' a single strand), and cut that single...

I'll try and cut the other questions down more quickly lol... 2. You have 4x 100ah batteries- so their total capacity (often marked as C or CA in the specs) is 400Ah total- 0.5C is 0.5 x 400 = 200A- yeah your 20A charger isn't going to cut it to get to 200A/0.5C (20<200 lol) 3. Don't know why...

I don't know if Texas has legal limits on their voltages (or legal limits on anything else either it seems) but most countries the legal limit is 10% of the nominal voltage is the maximum eg Australia is a nominal 230v country, and has an absolute maximum of 253v (Australia used to be '240v' but...

Still end up with the same overall copper, and you are increasing the amount of cables needed significantly- you are now up into the hundreds of metres of cables needed- still an expensive amount of wiring...(and still need to fnd a gridtie inverter that will work with that low an input- I...

Sounds like one of those 'funny US rules' made up for no apparent reason... In Australia the use of either solid or stranded core feed cables is allowable in fixed installations under AS/NZS 5033- it has to be double insulated, with the inner insulation a contrasting colour to the exterior...

The most common solution to all this is already found in many rural homes- simply having 'most' of the house set up to being on a changeover/transfer switch with 'generator input' (all rural sparkies are quite familiar with doing this, and the regs and gear to do so is commonplace, legally...

Waves from Australia... You won't need those huge numbers of panels- my old system in Brisbakers ran at 32kwh a day in summer, about 27kwh a day in winter- and pretty much zero'd the electricity bill at the time (2016-2020) It was only 22 panels, total of 6kw, with a 5kw gridtie inverter (3kw...

Incorrect sorry.... In either case, the panel with the shadow will produce less, but I haven't seen any quality panels this applied for for decades.. I actually did this with my own panels a while back after someone claimed that a single shadow would 'shut down' the entire series array... This...

Actually, that only applies in a single handful of countries... In most of the world, a level 1 'granny charger' is a nominal 230v single phase (ie 220v, 230v, or 240v- it is all classified as '230v' nominal... (a residential level 2 charger can be either a 230v single phase, or a 415v three...

Kinda a bit awkward dragging a microscope up into the roof cavity... ;-) The lighter test is quick, easy and simple to do in the field... and takes seconds without needing to fit new lugs etc

Which is why I am surprised that the use of LYP (LiFeYPO4) cells instead of LFP ones isn't more widespread- their operating temperatures go from -45C to 85C (-49F to 185F) with charge rate tapering only happening in the top and bottom 25C (so can be charged or discharged at full charge rates...

I prefer to leave them at least an hour- but I have never seen any hold a raised voltage for anywhere near 20 hours (even on the Rolls lol)- almost all the initial voltage drop occurs within the first 15 mins or so (maybe half an hour on cold days)

It is only history and inertia that held the US to the 'old'110v (now nominally 120v, but same thing) voltage- thank Edison for that- he had the political clout to get his DC (100v to begin with, later increased to 110v) system installed in many cities, and while other countries use the higher...

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REALLY old tech panels (bypass diodes have been a feature of practically all halfway decent panels since the late 1980's,early 1990's)

I am currently building my own 'retirement home' on a rural block here in Australia- currently living off 6x 250w panels (which give me about 7-8kwh a day in good conditions)- which pretty much would have just run the old house (2-3 people) As it is this runs the caravan, I do all my cooking on...

With a MPPT controller- series gives the best results ... In terms of total power generation made per day, series gives the best results, then series parallel, then all in parallel comes in last- a series array on MPPT can see up to 20-30% over the exact same panels in parallel... It comes...

Not familiar with that particular brand, but it sounds like the BMS has triggered on a low battery voltage and shut down to protect the battery pack... I had a quick glance through their manual (such as it is) and it doesn't specify how to reset the BMS on that model- maybe some else knows the...

That's the thing though- metric is what most of the world uses, and there are only a few holdouts... Canada is using 'both', as is the UK,and only three are still using the old 'hogsheads per furlong' imperial measurements exclusively lol The US really doesn't export that much outside of...

They are around- multivoltage ones that can handle up to 48v battery banks like this one have a 100v PVmax rating...

Strange- the specs on the Sunnyboy 7.7 are far different to that statement... (from HERE) A 19.5A array is well within the 30A Isc limit of the Sunnyboy per input, (it just can't use all of it in good weather and the MPPT controller will max out at 15A, but you could add a THIRD 9.75A parallel...

Nope- it is installed with a high lift (or ladder if access for a high lift isn't feasible) aand is attached to the rafters (either lifting a tile to screw to the beam, or with the more common colourbond roofing panels, a pair of roofing screws is undone and a 'foot' bracket screwed down...

Make a 'trailer' as long as it has 'functional wheels' so in theory can be moved, you can make it as big as you like- after all it's never going to be on the road... Put a trailer hub on each leg so it can 'technically' be moved (even if it never is lol) and its fine... (mate of mine got away...