YOUR QUESTIONS ANSWERED HERE - Please read this first. This video is always going to bring up a lot of questions so to avoid having to answer the same question lots of times I’ll post the most common answers here for you. 1. Why have you not got a split charge relay? A. AGM batteries do not like the voltages given out by your alternator and if you want to charge the leisure battery while driving you really need to fit a battery to battery charger. 2. Why have you connect the red and black cable on your solar panels. A. These are wired in series so it is correct to have them connected this way. Please watch my solar panel installation video for more detailed information. 3. You have not connected a load to your MPPT charge controller. A. This connection is for small load use only say just to power some lights. You could not connect 50A of appliances to these terminals. 4. You have not connect this system to your van body. A. The van body is not an earth it is used by your auto electrics as a neutral. I personally do not advise using the van body as a neutral for your leisure system. My mains earth is connected back to my hook up socket and I always check with a plug tester when connecting to shore power. 5. How can I size my cable and fuses. A. To work out the amps required use this calculation Watts / Volts = Amps. For fuses take your max amps figure and add 25% for safety. That is your fuse size. Then add at least another 25% and choose a cable bigger than that rating. 6. The interconnecting cables between batteries need to be rated for the sum of all your connected loads assuming that there may be running all at the same time. I will update this pinned comment if I get lots of other questions if you can find your answers below please do leave me a message. I do love reading all your comments whatever they may be. Thank you 😊

This almost entirely make sense which has given me a dangerous sense of confidence that I could handle doing this myself.

Greg, if all my teachers at school were like you, I'd have left with 12 A-levels!! 👍👍

I’ve been searching everywhere for a good video/instructions on van electrics and here it is! For the first time, I actually understand what’s going on in there (existing van conversion with electrical issues which I’m determined to solve!) and feel I now have a good idea where to start looking… or at least, an idea of what the bits are that I’m looking at. 😂 Thank you Greg, Thank you! 🙏 😁

Probably the best electric tutorial video for camper vans!!! Even dummy or me would understand how the system works.

This has to be the best explanation i have seen regarding the power setup of a van

Hello Greg, your schematic diagram is ingenious with its arrangement, clarity and organization. Thank you! Well done.

To someone that only has a basic idea but really wants to do it himself you have really put it in layman’s terms and made it seem so easy. You should be a school teacher😃

Out of all the videos I've seen your is untouchable. I really appreciate your video.

Greg, saying thank you costs nothing, and it’s a good job too because my Sprinter conversion is going to take every penny I’ve got. As a regular viewer of your videos, I would like to add my heartfelt thanks to the scores of others for all your invaluable and free sharing of your expertise and experience. It is all much appreciated and incredibly helpful. This particular tutorial is both very welcome and timely, for me. Many thanks and best wishes for your travels.

i think you should make an instruction Ebook on how to build your campervan !!! really i've been watching your videos from the start , and i think your videos are a gold mine for anyone who wants to convert a van the RIght way thank you

Dear Greg, you are a born teacher! I've looked at a lot of van conversion videos and what has put me off has been the electrics. Even if I got someone else to fit the electrics, I still need to understand it in case something goes wrong. Your slow and calm explanation combined with that very clear diagram is awesome. As I said, you are a born teacher. Thank you.....electrics now demystified! I'll be binge watching your other videos and I might just (finally) take to the road off grid.

Hello Greg. I rarely give comments. But sometimes when everything is just perfectly explained, genuine, good voice, good know-how, etc., that's when I want to say; Thank you so much!!

Thanks! Just what I needed. Very well explained for dummies like me 👍

Greg have just watched your video on the van electrical system ,I have been trying to figure it out for about 2 years and I just can’t absorb the information , but watching your video just now has opened my mind , don’t know what you have done ,but maybe I’m seeing the light at the end of the van ,for the first time ,good luck with your trip to Europe if you get anywhere near Crete Greece I have a Lot off great ideals for you and Lou , please private message me , kind regards Mike in Sutton uk it’s wonderful that you take the time to inform all the van life people ,you are a very talented young man...thanks once again....

Hi Greg. 100s if not 1000s of hours people like me go through these videos. Although all informative, well almost! I must say I always end up coming back to yours. In fact, most of my study, notes, diagrams and practical work are based on your videos. It's not just your knowledge base that works its the way you explain things. Trust me, Im a know-all, yet I could never deliver information or pass on what I know so easy as yourself. Knowing something and teaching it are two different things. You are great teachers. I know these videos are old, yet they are still helping others like myself. Thank you, Greg, I hope you are still around to read your feedback and not forget all the help you have given others like me. Safe journey bud and thanks again. Im now looking forward to putting all my hard work together with less stress.

Wow, amazing instructions! I'm not an electrician but I was able to easily understand what you are saying. Thank you!

Hi Greg. I looked at your diagram and thought oh my gawd!! then you broke it all down and it made absolute sense. That's why we need people like you matey to show us how we CAN do it!! have a great tour.. Al

I know nothing about electrics, so this is more than useful, cheers Greg.

BrilliNt video. The one thing I am worried about when looking at a van conversion was the wiring. This video spells it out plain and simple. Brilliant!

Thank you so much for this detailed & simple explanation of each part of the van electrical system! I've watched so many van-build videos talking about the van electrics, but I haven't yet found another one that gives such a good overview of what you are doing, and why.

Greg, you are a star! I built my van last year and, apart from a faulty B2B charger, appears to have been working fine. However, I couldn't work out why I wasn't able to stay off grid for very long before the two leisure batteries were depleted. Thanks to your simple wiring diagram I now realise that, although the connections to the batteries were safe, they weren't correct. I have now amended the battery wiring in line with your diagram, replaced the Votronic B2B charger with a Victron Cyrix CT Battery Combiner and everything is now working exactly as it should. I now have three sources of input to the leisure batteries, 200w solar batteries, mains hookup and van alternator via the starter battery. I can now sleep easy! Thanks for your clear explanations, they are immensely appreciated.

All starting to make a bit of sense now. Thanks Greg for the simplified explanations. Great video

Hands done the best solar break down on youtube. Thank you kindly from Montana.

Honestly Greg... I've spent hours trying to find something exactly like this to understand it exactly. I know you've talked me through it a few times but with it being a whole new language to me... it just wouldn't sink in. This is the best part of my day so far. I continue to love the way you explain things. Thank you so much for taking the time to make these videos and sharing all your knowledge so freely. It's a real gift for anyone who wants to do it themselves with no prior experience. I am empowered each time I complete a new stage on my build and I attribute these little successes to you and your amazing way of explaining things in simple terms and making me believe that I can do it. THANK YOU.

Greg, you are an amazing person to make all this material available for free. It is helping me a lot. Thank you very much!

No wonder Ame in a Van recommended your videos Greg. They are soooooo brilliant: so informative and explanatory. Thank you so much.

I've just got myself a leyland 400 1990 2.5 turbo project an it's got shower room sink and gas pipes and electricity but sink and cooker has been taken out and I was hoping to rip all old wired out and rewiring it and you've just helped me out so much. Amazing . It's my first project

Thank you Greg. After months of staring at wiring diagrams, finally something I can follow.

Thank you so much for this. I have spent countless hours on youtube and elsewhere trying to find something I could understand since I know nothing about electrical. This video and the lists are priceless. Thank you again.

So impressed to see you are still in the comments answering questions. I'm probably a couple years off doing a build myself as I'm still studying, but already I feel well prepared thanks to all your content! Much appreciated, regards from Norway!🙂

I'm very new and frightened of this journey but you put my mind at ease thank you very much Greg for this wish me luck 🙏

Thanks mate. Nice to have someone explain it simply. Cheers from Australia.

Thank you for this 👍 You're a rock star for putting this out there and explaining it in a way that it is easy to understand and to scale up or down. I've watched so many videos and by the end, I'm more confused than I was when I started. The diagrams and pictures help immensely.

Thanks Greg! You have solved my issues with the wiring the van. Those details makes the difference when you are a DIY.

Thank you thats awesome to hear clear concise and calm directions on how to tackle this very important part of the Van Build

This is 5 star easy to follow thanks Greg.

Your videos, schematics and the pace at which you explain them are awesome. You certainly have done a fantastic job. I have spent days/hours looking for guidance to set-up my van off the grid and you have the best. They are easy to follow and you actually talk about safety. Most videos do not warn the viewers about that. Thank you!!

Greg, what a teacher! If only you did videos for other electrical systems you would help there too. Lovely steady pace and totally clear.

This is the simplest and best electrics video I have seen. I plan to start a conversion in 2022 and this has been the part I’ve struggled to figure out so far so thanks for simplifying it. All your videos are going to help me through the conversion. Thank you Greg.

Thank you Greg for yet another brilliant video that was so easy to follow. I have been searching for ages and come across so much conflicting information. I now feel confident to make a start on my self build. The best or worst thing is now understanding how much additional space this is going to take up for me in my small van, It will help determine other elements of the build such as furniture lay out. Thank you on behalf of us all.

Thanks Greg, another great video! Have been watching your videos for sometime now and just think its unbelievable how you take the time to selflessly educate us all so it helps us when we come to building our own van, you have helped me and my girlfriend alot. Thanks again, Harry

Thank you Greg for your best way of doing camper van wiring diagram. Awesome!

I just love your clear and professional VoiceOver compared to the many hype and hip videos

What a brilliant explanation of what you need and the reasons for it, I have always toyed with the idea of converting a van but the electricity wiring side frightened me. This has given me a fanstastic understanding of what is involved. Thank you so much

Thanks for the time you put into this video Greg! You’re a great instructor!

thank you so much for this video. I've been looking up this set-up now and again for a while now but the technical language had always made my brain just switch off instantly. I desperately want to understand but my brain was just never having it, but this video was accessible, clear and a perfect pace.

Explained so thoughtfully as to be simple to understand, even for a newbie like myself. Thank you Greg

I am about to plan a camper conversion but had worries about electrics, those worries just went out the window. Brilliant tutorial.

What a fantastic clear and concise video! nice one Greg yet again i have been transported back to open university on bbc2 at 3am in the morning in 1975 :) Hope you are enjoying your travels!

I have seen many Electrical off grid set up clips, this is the only subject that has given me the "Heebe Gebees" and giving this part to a Pro. However your clip has totally transformed that, your 1st pictures made me freeze but then you set it up slow time explaining everything clearly and simply. I could understand that and will look forward to completing that now. A BIG THANKS.

I've watched this & some other videos from Greg several times over the last year as I'm still trying to figure out how to set up a classic campervan. It's by far the best explanation and I'm grateful for the diagrams and advice. As a Brit living in NZ, the wiring here has confused the hell out of me as the coloured wires aren't as simple as red and black and there's no earth in the plugs. Mind boggling.

Greg you are a total gentleman with a brilliant video so nice and easy to follow you and understand ,by far the best I have found. Thank you very much mate.

Greg... Great simplified and informative Vlog. 300 Watt tilting Panel fitted with Victron units. Very similar set up to yours. Kitchen unit in and just connections to do then snagging left before completion. Grabbed my Camp Quirky tickets this morning so really looking forward to the event. It will be great to meet you and some of the other U Tubers.

Excellent presentation. I can now look at the 'black box' in my motorhome with a good understanding of what all the bits do.

One of the best videos I have seen explaining an electrical system!

Very helpful. I learned something on pulling a load from your batteries in parallel.

Great simple explanation of a basic solar install, Thumbs up!

Thank you for that. Excellent presentation. When I saw the initial diagram, I despaired. When the video ended it was child's play.

To say it was helpful is an understatement.. Thanks Greg you did your home work.. Great teacher!!!

Astoundingly great information presented in a most approachable manner from one extraordinary teacher. Well done, as always, Greg. Thumbs up. Five stars. 10 out of 10. 100%.

Fantastic video. Just starting a self build and this is just what I need. Thanks.

Following all your video's building my 1st campervan, having to watch 2 and 3 times over just in case i missed something, keep up the brilliant work posting video's.........

Hello Greg, Thank you very much for this video! This is by far the best video (and explanation) I've found on the internet. I didn't understand anything of how electricity works , but now I understand completely how it works and how I have to install it! Thanks for that!!

Sent u a quick tenner Greg...Jono, Thanks for the help on my wire up ...soon. Just bought the van 🇬🇧🤞👍 Citroen Relay L1H1

Great plan ! Nice and easy to look at 👍

WOW! this man is a genius Have learned a lot from this video Very clear understandable and precise. having asked many professional people how to re-wire my narrowboat and never really understanding you have answered most of my questions and shown me how to put it all together in less than 15 mins Thank you!

Brilliant. I am about to start with a conversion and this will help me hugely. You explain things very well indeed, and your diagrams are perfect. Nothing is left out and every question i could think of is answered already. Very good indeed, well done you and thanks a million. If i see you around the drinks are on me..Cheers.

Greg, you are the best explainer in these things! :-D Thx a lot! :-D

Just stumbled across this excellent video, much appreciated information, thank you Greg 👍

I would just like to say how much I like watching your videos. I feel that I could do the wiring after watching them,you explain them very well Thank-you .

Brilliant video and given me the confidence to tackle our electrics in a safe and sensible way. Thank you.

Great video! I subscribed on the first sight of the main picture! That is what I have been looking for! Thanks!

Fantastic video Greg, made a complicated subject look easy to follow. Hope your European tour is going smoothly:-)

I just wanted to say a very quick thank you for this and other videos on your channel. I’ve just finished the electrical install on my van conversion which I couldn’t have done without your videos…thank you Greg.

I have watched so many of these videos but this is the best. I think that even if I was a complete plonker I would feel confident in wiring up my van after watching this. Thank you for a refreshingly informative video.

Such a great video! Best and most informative one I've seen yet. I have plans to build a defender 110 for overland use and am looking at a solar install to try and make a bit more comfortable when stopping. Won't be as nice e as your sprinter though 👍🏻

Once again Greg brilliant. I’m just starting my electrics. Hope you guys are enjoying your European jaunt. You should write an ebook, I know that Nate makes his money through his and the information is not a patch on yours. With van life becoming more popular you would never need to work again!! Best wishes

I have been googling this for two weeks before I found this video! Answered every question I had!! Thank you 10/10

Best video of this type I've seen! Perfect for my simpler camping set up. Thank you!

Thanks Greg, Great Video as always, im just at the stage where Ive insulated the van and ready to board over and I've been worrying about electric element of the install. Much appreciated

This was one of the best and most complete videos I saw, it helped me so much. Thank you Greg!

exactly what I was looking for to wire my off road trailer with 2 bank solar batt. thank you.!!

Congratulations Greg on the best power system video for vans I have seen !

Thank you you made it easy to understand

Nice site. Very helpful. Thanks for sharing

Mate❤ Can't thank you enough. You saved me. I was going to give my van to an electrician to do my 12V and 230V. This video is so informative. Now I have my confidence level up. Cheers to the way you explained ❤

Thank you so much again! This video is epic! Simple and understandable. Now I know how to build my bicycle caravan completely off of grid and Scandinavian proof. Cheers from Denmark

Great video Greg one of your best 👍

Best tutorial out there, thanks 😁

Thanks you Greg, You are really good instructor even though I don't have knowledge in electricity but can get your explanation.

Brilliant video....many thanks

Thanks Greg very informative

Just bumped into this while surfing up stuff for my own project. I've got a 13plate Crafter I intend converting to a w/e camper, not full liveaboard. I've made a start with the floor, windows, roof vent and bed in. My next thing will be electric for lights, power, inverter and fridge. So to find a well made, easy to follow, breakdown vid of how too has been an absolute diamond in the rough. Thank you for making this and your other vids.You have helped my understanding of how to tame the 'angry pixies'.

Just starting a van conversion with my partner and until I came across this video I was very concerned about my lack of knowledge on the subject. No longer - this explanation and wiring diagram is excellent. Thanks Greg.

Thanks so much for this Greg, exactly what I've been waiting for! I understood about the key components but hadn't see anywhere about the relevant sized wiring, fuses, breakers etc that keep it all safe. I can go into this feeling a lot more confident now, cheers!!

Outstanding Video........

Just starting my build and was ordering the electrics but this has so simplified what I need and hopefully it will be an easy project to complete now Love the videos by the way 😀.

Best tutorial for anything I've ever seen in my life. 👏👏

In your schematic, you get 220v from the inverter, even if connected to shore power. There are allways losses using the inverter. If you would use an inverter-charger, if connected to shore power, it would bypass to the 220v installation and trigger the charger. In an off grid situation it would act as a regular inverter.