Customer wanted to go off grid! So we did this...

[@artisanelectrics]

Become a channel member to watch Another crazy week - Fixing problems and Artisan Defrosting 🧊- kzbin.info/www/bejne/b4PMaotmhtCVkJY

[@mikelinzey]

Check out Solar Limpets they are roof hooks that eliminate the need to cut tiles :)

[@RWBHere]

Thanks Jordan. A shame that you didn't record that part. 😉

[@mididoctors]

This must cost a fortune

[@robinheijblom2929]

I'm so glad you address the induction loop problem, explain it and also show the solution. It's the #1 cause of ElectroMagnetic Interference caused by solar installations. So you're not only preventing the damage caused by the induction currents of lightning strikes but also prevent a lot of other problems most people don't even know they have. A lot of optimizers actually cause a lot of EMI and if you would have made an induction loop you basically create a medium wave jammer. By putting positive and negative wiring next to each other you minimize this effect although in my opinion they should be in a metal conduit which is properly bonded to the protective earth. Even though solar panels generate DC, the switching electronics in the main inverter and power optimizers make it from a high frequency perspective more or less a radio transmitter if not proper minimizing unwanted inductive and capacitive properties.

[@stewartstewartstewart]

These installs are virtually ASMR videos now. I'm not even a spark but damn, so so pleasing and we can all learn something from this! Great work guys!

[@Florin_Bolocan]

Jordan, I would like to congratulate you once again as I did before in your recent videos, for not using clickbait titles or childish thumbnails. You were able to use a very good title and to include a bit of mystery as well by not divulging everything in your title. I totally respect this approach Jordan You are doing a fantastic job by listening and taking on board constructive feedback from those of us who value your work I wish you all the best!

[@esecallum]

OPEN MOUTH SYNDROME

[@SelfMadeDocumentary]

It’s great to see how far the company & the production have progressed. Ending of the video. Top notch 👌

[@jameswheeler9890]

My understanding is if power is direct current you don’t get the magnetic field you’d get from an AC 50Hz supply. If I’m wrong feel free to correct me 🥲 Great videos guys, very helpful

[@spamhead]

Yep, it’s the changing magnetic field that will induce eddy currents, although ripple on the DC will cause them, but hopefully very limited.

[@mjelectricalcontractorsltd5127]

Have a look at a rubber tile replacement called Hook stop no need for messy tile cutting and any flex on the rail is absorbed by the rubber so no tile cracks!

[@essexcountyelectricalltd]

Couple of suggestions Jordan, you can buy mc4 bungs that you can insert on the optimisers instead of taping them, for your cable entries you should always avoid piercing the felt just slide them up to the nearest overlap which easy to find, also cable entries on tiles i always a small piece of flexi conduit to protect from abbraision on tiles. also lining up your panels its easier to start at the bottom fit your first then string line across the bottom to the other side measuring up from bottom of roof. just fit another length of rail the far end to wrap string around then all panels will be straight. Then your top ones will be easier to fit also taking the weight from bottom panel while you get a couple of mid clamps to use as spacers. remove once clamped. Thought i would share some of my experience with you as your new to solar.. Keep up the good work guys

[@SgtAMYNTAS]

If you want to keep the efficiency of the panels when it's snowing or ice, moisture, etc. Run trace wire around the perimeter of all the panels and then put the trace wire on a timer SL to frost state at 3⁰c

[@UKsystems]

The argument could then be made up on earth solar panels as UK regulations do not have them require that it needs a thing in case that frost wire fails and that could become a complicated regulatory thing

[@isfiyiywafibc6qaiiiiiiiiii570]

Eddie currents are induced when the EM field changes which only happens when your DC circuit is first powered or when the current draw changes so it should be mostly fine in that regard.

[@jonnyf6932]

Also can’t be induced in brass as only ferrous metals will be affected.

[@intercity125]

@@jonnyf6932 Eddy currents are induced in conductors full stop, not just ferrous metals - drop a magnet down inside copper pipe if you want quick evidence.

[@jonnyf6932]

@@intercity125 Faraday would of course agree and quite right to point that out as it’s a fundamental law. I think what he was trying to avoid was heat induction into the gland caused by Eddie currents where the conductors are separated. I should be more careful when commenting not to make simple statements that might be inaccurate or misleading in isolation of the context.

[@davidw460]

BS7671 regs prohibiting single conductor entry are for ferrous metal and AC, iirc :)

[@adrianshingler9783]

@@davidw460 No eddy currents assuming steady state dc, the magnetic field has to vary to induce currents into any electrically conductive material, only an issue with ac.

[@angusr7805]

Love the quality of your work!

[@JustMeTalking]

Pigeons... I learned a trick Not all Pigeons are the same. Wood Pigeons (White Necks) won't go under the panels. They nest in Bushes and Trees. Rock Pigeons (Feral Pigeons - Green Purple Necks) are hole seekers. It's these Pigeons that will go under your panels, nesting, breeding, dying... they're very territorial and will absolutely make a mess. Type you see in the City. We have Wood Pigeons around us, they'll sit on the roof, walk about... but never go under them. This knowledge passed on to me by an ornithologist saved me thousands. If you're unsure... walk about your area and see other neighbours panels. If theirs is clear.... so will yours.

[@Mike_5]

08:10 Nice Architects Drawing

[@jamesbyford7614]

Great video. Im looking to do the same, but have always shide away from doing it myself. Not anymore.

[@CrownRider]

You put so many parts on the wall, such as Modbus modules an separator switches and so on. Wouldn't it be cleaner, safer and cheaper to mount all these parts into a cabinet? You can build and test that cabinet in a nice warm workshop. Better for your health as well.

[@mfr58]

Yes bird protection is a must. I learned the hard way, However aesthetics aside, I prefer mesh as it allows more air flow to keep the panels from getting so warm in the summer and losing performance.

[@nickdierckxsens2621]

Yes, no airflow is approximately 10% less yield. Going to be an oven under the panels in the summer.

[@artisanelectrics]

They allow plenty of space for airflow still as there is a gap of aground 20mm above and below - big enough for plenty of air but small enough to block pigeons

[@TheGalifrey]

@@artisanelectrics 20mm is still a significant reduction in airflow compared to a mesh, on a hot day you need a lot of airflow to maintain performance. They should cut a nice hexagon/square grid pattern into those panels and it would improve them significantly whilst still removing potential nesting issues and improve the aesthetics.

[@RichardABW]

@@TheGalifrey The bird protection that is black and looks like bristles looks pretty much as good as the solar skirts IMO, which although neat have a bit of a heavy stuck-on look.

[@boblewis5558]

Don't understand the need for a skirt. We have our whole roof pretty much covered with NO skirt, have plenty of wood pigeons and doves around but they don't go under our panels ... At least not in the five years we've lived here. If any wood pigeons managed to get under our panels they'd probably get stuck they are so fat! 🤣 A MUCH bigger issue is keeping pigeons away from tops of the panels as their crap takes ages to be washed off by even heavy rainfall.

[@James-jp6ry]

4:53 Did the bricklayer get bored of straight lines after building the house? 😂 Fair player to them, must have taken some effort to build that wall.

[@JohnR31415]

DC shouldn’t cause eddy currents, that’s due to (rapidly) changing currents in the cables.

[@sanderspeetjens]

True it's due to a changing magnetic field induced by an alternating current

[@RichieWellock]

I may have missed battery install of the off grid, but a lot of inverters need a grid supply for the inverter to work. Or can you do it so that even these inverters will work if power goes to the grid , therefore then giving full off grid just of battery. Im not a fan of bird barrier but that trim does set it, you have converted me, from the norm look and so better than that mesh bird barrier. good job lads

[@artisanelectrics]

Tesla is one of the few ‘main brands’ that will allow use on a complete power outage. There may be other brands out there but at the moment we’d recommend a Tesla Powerwall if this is what you are after.

[@blower1]

Meter seal fairy appears to be waving her wand @ 19:01 :D

[@torstenpierro9279]

great video as always. A question from a German PV owner. As you really go above and beyond for great looks (e.g. the skirting against birds). Why don't you use black anodised rails? I find the silver poking out between the all black panels at bit... distracting when the sun glints off it between the panels)

[@lewis94uk]

They cost 25% more which most people will just not pay for

[@torstenpierro9279]

@@lewis94uk Ok. Just wondering because the pidgeon protection they use will also be more dear than chicken wire... and the total cost of the rails is pretty small compared to the rest.

[@lewis94uk]

@@torstenpierro9279 yeah one of those things probably cost the manufacturer nothing really more to do but they sell it high as a premium product.

[@RichardABW]

@@lewis94uk I think this customer would have paid!

[@Fuxy22]

Aren't solar panels really sensitive to temperature though? Less on an issue in the UK I guess but you would want a nice perforated grill if you ask me.

[@tobysherring1369]

Avoid eddy current concerns (which John Ward demonstrates are irrelevant anyway) by not using brass bushing between plastic enclosures and plastic trunking. Stuffing glands are fine if you must use something. As far as I know it's the nature of AC that creates eddy currents; they don't occur on DC.

[@mfr58]

Eddy currents is only an issue with ac and metallic enclosures. If the brass bushes are in plastic there is nowhere for the eddy currents to flow.

[@mattywalton88]

Can’t wait to see the Libbi install! We’re moving in to a house with solar and want to add Eddi and Libbi plus extra solar PV when we’re in. Would love for you guys to quote but based Worcestershire 😢

[@stepheneyles2198]

@Matt Walton - I'm sure they'll be happy to charge you mileage on top of their quotation!! ;-)

[@avidviewer1]

Really interesting and very impressive. Thanks!

[@richardsandwell2285]

I hate being a critque but I cringed when you got out the solar skirt. The panels need good air flow to make sure you get the best output from the panels and more importantly less yearly degradation from excessive heatwave temperatures. Panels work best and live longer when they are running cold, indeed some are now fitting panels with fans in them and even water cooling systems.

[@richardcornelius220]

Could I ask you Jordan, why did you mount the hooks on battens rather than directly on the trusses? They looked high , or is it a different style for the flat tiles?

[@FirstDan2000]

I thought he screwed directly into the trusses. He called them joists when he did it.

[@MrTwoZZT]

He did attach them to the trusses/joists, he just used a packing piece to raise the bracket to match the depth/height of the tiles, it mentions this in the Renusol guides, which is the brand of mounting system they use.

[@techieboy333]

Bloody good job that customer has such a humungous garage as there seemed to be a lot of kit/complexity in there, even without his batteries arriving. Might sound stupid but is there a correct order to starting up/shutting down all of that stuff?

[@Tyriama]

Had an emergency callout a few weeks back here in Norway. Was a frosty -26C. Real glad I got some new winter clothes from the company that actually keeps me warm this year :P Last year was misery.

[@nusermane1076]

22:56 Since Eddy currents are the result of a changing magnetic field, which in turn can be the result of a changing current in a wire, they are mostly a concern in AC systems. For DC it would mean that you would need to have rapidly changing sun-power, which isn’t a thing (except if you live close to a windmill or moving trees, I guess … but even then it’s not as fast as 50Hz mains frequency current-change happens to be). However: If the inverter communication to the optimizers happens via powerline, then yes, there might be Eddy currents, even if they are weak, but it might mess up the communication. So … it depends 😅 But you would definitely not get these constant Eddy currents as you would have in a high load AC system, I guess and also in your case you plan to pass the respective in/out for negative and positive conductor through separate brass rings, which means, that the in/out currents are the same and of the opposite orientation, whereby the magnetic fields cancel out each other :)

[@patrickcannell2258]

Generally Eddie currents are not an issue with DC.

[@randacnam7321]

Also not an issue as the metal bits the wire goes thru are not ferromagnetic. Induction heating problems come when groupings of AC wires are all the same phase and thus have the same magnetic field, which in turn magnetizes the metal bits *that completely surround each grouping of wires* alternately on each half cycle. The hysteresis losses (each alternate magnetization takes energy to reorient the magnetic domains in the steel or ductile iron that such bits are made of and this reorientation happens each half cycle) are what cause the heating problems.

[@AyAytch]

If you guys need to avoid induction loops, try leap-frogging the optimizers. Saves some wire management as well.

[@richardsandwell2285]

Going completely off-grid is the way forward.

[@bramcoteelectrical1088]

See our monster off grid system and 160kva benny at our customers build.. see our channel. Good solar job thou lads artistan electrical 🤓😎

[@RichardABW]

I don't think this setup is enough to be off grid. Would be good to see the numbers.

[@percyprod6574]

That looks afantastic job, but no doubt very expensive. I can't help but wonder how many years of mains electricity you could have paid for with the same amount of money.

[@hein_mcleod]

You should use a torque wrench when fasting the clamps on the solar panels. Read the manual 😉

[@alanolley7286]

I had one blow off in the gales last year damaged another one ,not covered by the special panel insurance i took out because it was an act of god,any excuse eh?

[@PaulAllen.66]

Impact driver

[@callumhartin5062]

Loved the video! Couldn’t you have just taken the inside of the isolator from dim rail and turn it around instead of drilling holes?

[@Tony-fl3rl]

Din rail .

[@UnitedSpotlight]

I really like the look of those skirts my question is ventilation under the panels specially in full sun on a hot day could they potentially reduce efficiency of the panel if there getting so hot ?

[@ians9298]

Great video, thanks. Do you still need DC isolation and surge protection with a solar edge invertor, I was told they had surge protection inbuilt?

[@Stugadget]

Ni need for DC Isolation with an inverter that had built in DC isolator

[@TermoneenyCC]

Thats a bit much wobble in the rail there @ 18:41 , are you exceding the Renusol 300mm recommended overhang there lads? LOL

[@NoTreadingOnMe]

What about the airflow under the panels when you add the solar skirt? Keeping the panels cool (especially in summer) is important for efficiency and longevity.

[@dealerovski82]

good point but I dont think its fully sealed, the wind can get through

[@JakubKonecki]

Came here to say this! Removing heat from the panels is extremely important. Your panel specs will contain information about temperature coefficient - panels can lose even 0.5% for every degree above 25C. I have a wire mesh around mines and honestly it doesn't look that bad - definitely not worth losing 1-2kWh on a hot, summer day.

[@Danme1987]

@@JakubKonecki it's ok they just won't tell the customer 😂

[@lindathefish7736]

Chicken wire all the way. You do get panels that are inbuilt to the roof so likely ok…. Hopefully the skirt makers do insurance….

[@Headcase0570]

@@JakubKonecki I'd love to see a solar panel / water heater combination. Using the thermal energy of a solar panel to heat up water by keeping a circulation going through the lot.

[@thargy]

How did you go off-grid though. Just installed 57 panel Solaredge system, with new inverters but the Home Backup kit isn’t available until Q3, so when power goes off, so do the inverters, regardless of how much is in the batteries?

[@Chris-hy6jy]

The problem with solid solar skirt is that it stops air flow under the panels. This causes the panels to heat up more and efficiency to drop.

[@anthonycampbell9807]

Was that the meter box you said John was doing but was sick at the time. Lee made a nice job of it

[@muso31]

were the panels and/or rails earthed?

[@artisanelectrics]

Earthing the panels is not required in the UK

[@Kallenator1988]

Why did you go for microinverters on this install?

[@lucaeber2720]

There is no Eddy Curent in DC Systems

[@matejkotnik9675]

The solid metal may prevent solar panels from cooling properly they may run 10 - 20°C hotter. The 10°C coller panel results in 5% more power and 1% less they degrade every year. I would measure if in summer they operate below 50°C is fine, over 70°C is alarming. I would prefer the same metal being perforated with 4mm holes for example. I saw great video latelly on this topic from TechIngredients YT channel about boosting PV efficieny with better ventilation of panels.

[@kevinpickett7249]

If you Dont live near someone with a pigeon loft your fine 🤣

[@Mr1Spring]

Nicely done. But I have some remarks. Why use optimizers? They will break after 6 years (after the warranty period of 5 years?). Replacing them is very costly due to opening up the panels on the roof. I would not have used them at all when there is no shadow. In addition, I did not see any grounding of the panels (including eloxyide piercing tabs). Does the UK have any laws about proper grounding? Why did you not use the PE connectors on the overvoltage protection devices? Also, please do use heat shink tube with a melting insert. Not the cheap stuff as you have shown. Anyway nice video despite some shortcomings.

[@Stugadget]

Where is your evidence that they break after 6 years ?

[@Mr1Spring]

@@Stugadget I read the following on reddit "We're seeing about a 20x higher failure rate on our P300/P320 optimizers compared to our IQ7/IQ7+. We have installed several thousand optimizers and about 2,000 IQ-micros, and in those ~2,000 IQs, we have had one failure. One. Our failure rate on SolarEdge optimizers is about 1 in 50." Perhaps you can google it?

[@RichardABW]

@@Mr1Spring I think the warranty period on SolarEdge optimisers is 25 years. I believe I've heard that we do not have grounding laws and that that is unusual. I feel like there may be some reasoning for it, possibly lightning.

[@danielfisher2954]

@@RichardABW That would be strange, during our MCS assessment, the assessor asked what reading i got between the inverter and rails. I always wire an earth loop, take a leg to the first rail, link between rails and then a leg back to the inverter. One leg connects directly to the inverter, the other is mounted suitably close so that a continuity test is easy. Im not sure on whether this is a requirement by MCS or a regulation or best practice or manufacturer installation instruction ???

[@NickNorton]

21:17 Red as Positive. White as Negative. I wonder what was wrong with Black as Negative. Other than silly political/society correctness. Not entirely sure how the new white makes happy.

[@simcax6087]

There is enoungh air gap between the inverter and the garage ceiling? For huaweii inverters it should be 30cm... I wonder if solar edge needs less space around it for cooling.

[@99rattle]

9 mins in you are talking about inductive loop, but you have achieved the same wire run as if you would have done the shortest route, straight through the roof in my opinion, bigger run of cable & time seems to be the result you the way did it ! ?

[@rtreborg8472]

The pigeon solid flaps will prevent heat escape from the panels - resulting in poorer performance from the panels - lower output the hotter the panels - yes I know might not be an issue with uk weather!! Need to find space for another 2 panels to compensate!! Your finishing of the brackets through the tiles and sealing is one of the worse I've seen so far. You have gone for a 'make a large' hole through the tile rather than cutting a grove on the back of the tile and seal (prevent direct tile / bracket contact). Needs better bracket to roof installation. So a 1.5 star for bracket installation.

[@grahamek86]

DC eddy currents are so much of a thing, but even with AC, if the brass bushes were not electrically connected, there'd be no eddy current.

[@buzx1313]

why not put the lid on upside down???

[@persona250]

Regardless of AC or DC 100s of amps are required for thermal effects from eddy currents .

[@craigbutler6243]

Beat me to it. 100%. Need serious current flow before worrying about effects of eddy currents

[@davidbeakhust9797]

Strictly it both is and isn't eddy currents. More important is "Is the bush or enclosure ferromagnetic" e.g. steel. NOT "is it metal" With AC, (and with a ferromagnetic bush or enclosure), you will get an alternating magnetic field - it is like putting a single turn choke inline! You should not get those fields with brass (nonmagnetic) bush. Because brass is nonmagnetic, there is no more magnetic field induced than in air or plastic, so in turn, no eddy currents. An alternating field in the steel would cause eddy currents within the steel (like the secondary of a transformer, but shorted out) and so heat it up (why transformer cores are laminated- it stops the internal eddy currents). With DC, there would be a field (and so secondary eddy currents) induced only for microseconds when you switch on or off an isolator, otherwise nothing with steady or slowly changing DC.

[@adamkernohan]

Would imagine the solar skirt would be better than the usual mesh for reducing the dynamic load too with wind gusts etc.

[@brianwoodruff4891]

It takes 10000 kw hours of electricity to extract the silicon from sand (silicon dioxide ) to make 1 kwp of solar panel. The process is to mix the sand with charcoal and heat it in an electric arc furness to 2000 degrees the result of that is 98 percent pure silicon and carbon monoxide .The process is then repeated to obtain the pure silicon needed for the solar panels.

[@grahamek86]

25:20 the isolators are labelled "top panels" and "bottom panels". Earlier Jordan mentioned the panels would be split into 1+4 and 2+3. Worth double checking ...

[@JamesScholesUK]

"top" = 2+3 because they're nearer the top of the roof "bottom" = 1+4 because they're nearer the ground 👍

[@grahamek86]

@@JamesScholesUK they're not though. 2+3 are in the middle, 1+4 are top and bottom.

[@JamesScholesUK]

@@grahamek86 only on the design, not in the real world

[@grahamek86]

@@JamesScholesUK I'm just going by what the video said. If that's different, then it still needs correcting.

[@JamesScholesUK]

@@grahamek86 in the design they're on the middle of the page but that's a flat drawing of a sloped roof. If you stand on the ground and looks at the panels, you see line 1 closest to the ground, then 2 above it, then the apex of the roof, then on the other side 3, then below it 4. 1 and 4 are below (in 3d space) 2 and 3

[@Barry.ONeill]

Working on a roof in below freezing temperatures 😬

[@wezharrison7220]

Where do you get the little labels that you slide onto the cables? Like on your data cables etc. Make it real nice and neat. Thanks

[@timothyburden1576]

Heat-strink for Dyno label printers

[@oskarraen8182]

How mutch would an install like this cost?

[@CSTEntertainment]

As a Hungarian electrician, I was wondering why you had to drill two more holes on the other side of the DC isolators rather than flipping the inside isolator upside down?

[@andrewdoherty737]

When did the DC wiring colours change?? all I can find is Red/Black unless a 3 wire system (+v 0 -v) then 0v is white.

[@RichardABW]

Sorry if you mentioned this later than where I'm up to, but what orientation and pitch is the roof please?

[@RichardABW]

Would there be an induction loop problem if you had gone along and back to connect 16 panels on one side? My panel layout is looking similar to this.

[@RichardABW]

Great video thanks. Would be good to see what the simulated output was in order to be 'off grid', and also what the real output is like on a winters day.

[@paullefur6213]

Solar skirt also stops bloody Pigeons from nesting under your panels, We had solar panels installed under the govt grant years ago feed in tariff, what we dont use feeds into the network and Pigeons nested under the panels due to the pitch of my roof, cause warm and dry under these panels ideal for making pigeon babies, had to fight to have panels removed birds moved on, the CRAP cleaned off the tiles and panels re-fitted with mesh around with other anti pigeon stuff installed. You get solar ASK about pigeon proofing ????

[@davidunwin7868]

Good ending.

[@waydeross]

Is this grid tied? Or completely off grid? Curious with grid tied systems in the UK do you power inductive loads on the utility?.(separated from the solar/inverter system)

[@ianmiller3182]

Great presentation. Small note that push in blind grommets are removable without the use of key or a tool !! With a 20mm hole giving possible access to an inquiring finger.

[@kevinpickett7249]

🤔you would have to be a tool to do that though 😀

[@ianmiller3182]

@@kevinpickett7249 children often don't know the difference tool or not. 🙂

[@djrphotography]

What area do Artisan Electrics cover in the UK? Is it just Cambridgeshire?

[@artisanelectrics]

Yeah just a 30 mile radius around Cambridge

[@Sparks1Plumbers0]

Ha ha... we do everything The Artisan Way. Really! Like that ending🤪. Reminds me of when you did that 'Woodworking With Mother' video on how to hack a timber framed house about. 🤣

[@johnh9449]

No. Eddy currents aren't a thing with DC.

[@gary.corcoran]

Great video Jordan & Team - do you put Denso Tape or waterproof wrap over the DC plugs and jacks, similar to the wrap supplied with some antenna jacks ?

[@Stugadget]

Not needed they are fully ip rated

[@blower1]

I have my own solution to birds nesting under panels - Solar panels going on my outbuilding roof.....bird hungry cat also goes on outbuilding roof.....birds never go on outbuilding roof.

[@artisanelectrics]

😂👍

[@dominicharlow8903]

What software did you use to map out the electrical equipment plan seen at 5:50? Great idea!

[@artisanelectrics]

Canva 👍

[@dominicharlow8903]

How? 😂

[@barrieshepherd7694]

Instead of drilling more holes in the back box, for the isolator switch, and plugging the wrong ones, why did you just not undo the switch from what looked like a DIN rail in the housing and turn it round - the back box looked symmetrical?

[@jneale7715]

Are there any drawbacks on the solar skirt. Ie increased thermals as lower wind/ breeze acting as cooling?

[@perryoffler4802]

On such a small array it would have no effect on thermal build up or loss of efficiency, would be concerned more about birds nesting and biting through the cables, fault finding takes a while and might have to pull up all the panels!

[@2391Sparks]

No problem with eddy currents. Your conductors aren’t separated by ferromagnetic material..plastic trunking and plastic enclosure..

[@charleslockerbie4027]

no eddie currents in DC, you need a changing magnetic field to create an eddie current.

[@robert1508]

1. Easier way to do a roof hooks is use hook stop (just goog le it) 2. Do you guys stil use plastic clips? 3. Who doing so thick cable at this temperature? It is so stiff. 4. DC cables should NOT touch rosemary tiles.

[@kobirelf97]

Just finished watching Cory's video about solar panels now watching this one 😂

[@asamitchell7948]

It's oscillation of magnetic fields that create eddie currents

[@ben210ben]

Solar panels work better when cooler, are you not worried that the solar skirts will restrict airflow to the underside of the panels? the mesh allows good air flow. :)

[@colingreer853]

Customer wanted to go off grid - Just turn the lecky off!

[@dribzy888]

Hey mate you could of just turned the panels upside down on one side to make the cable run shorter.

[@nrgia]

Wrong install. You didn't need the wooden spacer under the hooks and you didn't need to cut the tiles. Another thing. For this type of tiles, K2 has the best system available on the market.

[@mikaraussi8200]

You could go trough the overlap in the plastic in stead of poking a hole in the guys under roofing

[@eric4709]

Eddy currents : You will ONLY have eddy currents from a CHANGING magnetic field!! ( ie electromagnetic magnetic induction from a time varying magnetic field) Since you are working with DC - there is no changing magnetic field therefore there cannot be any induced (eddy) currents.

[@heartman3380]

I wonder how much this all cost the customer? Some folks just have too much cash

[@JohnR31415]

😂 that ending…

[@Barry.ONeill]

You know workers are 30% more productive when listening to music 🎶 thats the worst thing about making KZbin vids but radio's wer bans on a site I worked on I just used one ear fone even though you wernt supose to I was friendly with the health and safety officer and I said it was the same as ear plugs 🤣🤙

[@zzz-nu2re]

Only issue, u used solaredge optimizers (they are practically a scam due to the maount of power they consume), also u want to string together panels that share similar mounting planes to avoid Vmp-array values that shift over the day as the sun hits the panels arlt different times. Gotta remember dc in series requires optimization while ac modules in parallel bypasses these issues and optimize your production, its just more expensive

[@UKsystems]

One noteworthy thing is it’s quite bright sometimes when he’s up there even on a not particularly sunny day so before they are comments about things like solar panels don’t work without sun it will have a reduced amount and direct full sunny date but you just plan into the calculations

[@kingk5013]

Well I understand why it cost 15k for 3 kWh now all that work and man gotta be paid not even mentioning the tools required scaffolding panels and loads more

[@goober-ll1wx]

Tesla power walls would have made this all so much neater and simpler, not that you did any bad work at all in fact totally the opposite. I just mean from amount of boxes installed etc all under one app etc...

[@matthewfenney5088]

Not sure on eddi currents but ac and dc should be kept separate

[@alf699]

Eddy currents shouldn't be an issue at all. I don't think you get a large and fast enough current swing via your Solar Panels.

[@pandaman144.]

Jesus I always say up there for thinking down there for dancing with my grandad, did not expect to hear it "in the wild"

[@johnwilde4953]

Did he cut two unnecessary holes in the second DC isolater, so it matched a mistake made on the first? I commend the attention to aesthetic detail, but isn't that a bit of unnecessary form over function?

[@jameshunt2141]

solar skirt looks nice but doesn't allow airflow under the panels. as the panels increase in temperature the efficiency falls off a cliff.

[@lua-nya]

"It's not enough to shock anyone." Try the tongue!