Victron Official Dealer1,000+ Systems SoldFree UK Delivery

Off-grid power for workshops, garages & barns

Run saws, welders and compressors on silent 48V solar + battery — no trench through the garden, no four-figure connection quote for the barn, no generator droning through every job. Enter your location and see exactly how the system holds up, month by month, December included.

Size your workshop — free calculator
Customer with dog in van
Customer in their van
Customer van build
Customer wiring diagram
1,000+ Vans Powered
Rated Excellent on Trustpilot4.9 stars · 150+ reviews
Free delivery
Free design consultations with an expert
Custom wiring diagram & install guide with every order

No trench. How many days off-grid?

Quick estimate for a tool-grade workshop system in your region — the full calculator models your exact location, hour by hour.

July, solar + battery

All month

December, solar + battery

18 days

December genset top-up

~7 h/month

Run the full calculator for your exact spot

Quick estimate from typical regional solar yields (MultiPlus-II 48/5000 · 16 kWh Fogstar · 2.8 kWp). The full calculator simulates real hourly PVGIS data for your location.

Takes under 5 minutes

How It Works

Size it honestly
Get your kit
Fit it your way

Use the free off-grid calculator: pick what you’re powering and where, and see real month-by-month numbers — December included.

A complete 48V system — Fogstar lithium, Victron power electronics, solar and distribution — with a custom wiring diagram for your build.

Competent DIY installers fit our systems every week, or hand the diagram to your local electrician for a straightforward certified install.

The Vunked Promise

5-Year Complete System Warranty

Every component covered. We stand behind our systems because we build them to last.

Custom Wiring Diagram & Install Guide

Every kit ships with a professionally designed wiring diagram for your exact system, ready for you or your electrician to work from.

Fire-Suppressed, Self-Heating Lithium

Our Fogstar 48V batteries include built-in heating for winter charging and heat-activated fire suppression — designed for timber buildings, huts and barns.

Unlimited Professional Support

We're here before, during and after your install — sizing, wiring questions, commissioning, the lot.

Free UK Delivery

Everything arrives together, ready to install. No chasing multiple deliveries from different suppliers.

30-Day Money Back Guarantee

Changed your mind? Return your order within 30 days for a full refund. No questions asked.

What Our Customers Say

Rated Excellent on TrustpilotRated 4.9 with over 150+ 5 star reviews

Great experience with the consultant…

Great experience with the consultant engineer understanding needs, requirements and skill levels involved in the project. Only suggestion I would make is that rank beginners may not understand connection point requirements of the various components - it would be useful to include on diagrams whether a lug is required or not, and which type/size end to use!

Brittany Hook
3 weeks ago

Great service from start to finish

Great service from start to finish, always available for advice and help, cannot recommend enough, i wouldnt trust my solar/electrics set up with anyone else!!

Carl Longden
1 week ago

Sound advice and no pushy sales.

From initial enquiry to placing our order, over a period of 2 weeks Sam Barker was always ready to offer advice either over the phone or by email. Advice was based on what WE wanted to get from our electrical system. Never felt as though he was upselling, just simply advising the best solution. Checks elsewhere confirmed Sam's advice and design specification was spot on. Thanks Sam. If we ever do this again, I'll be back.

Chris Parkin
1 week ago

Great kit and product backup

Supply of the right kit for our application was made simple by competent, in person, service backup. Wiring diagrams were provided and our technical questions over the phone were given prompt attention and answered in layman's terms. The Vicron Smart Dc to DC charger supplied is an excellent piece of kit.

Gordon McKillop
1 week ago

Brilliant service

Brilliant service

Stuart gardiner
3 weeks ago

My new van build

I was unsure about what I needed for my new van conversion so I used the build feature and arranged a consultation. Sam asked some questions about the build and gave me some options and I went ahead and ordered. The kit was with me in a matter of days from vunked even tho I ordered right after new year! There was a bit of a mix up with my battery delivery from fogstar but Sam was on hand to have it sorted straight away. Can't fault the quality or the service I've recieved from vunked.

Dale Leadingham
2 months ago

Great quick service and spot on wiring…

Great quick service and spot on wiring diagram that was easy to follow!

ian potts
2 months ago

Vunked electric set up

Couldn't recommend vunked enough. I was very apprehensive about the van electrics but at the same time I wanted to give it a go. Sam from vunked was amazing to deal with, from our initial phone call to various e mails and calls during the install (im sure I did his head in) but he was always there to help. The wiring diagrams and instructions you receive are invaluable and easy to follow there is no way I would've been able to work that all out and install. It is very satisfying knowing everything is wired correctly and most importantly safe!!. Cheers Sam

Mark Graham
1 month ago

It's the second time I've used Vunked…

It's the second time I've used Vunked as the service was great last time. Yet again, brilliant! Tried to save a bit by sourcing the main components from Renogy, and Vunked didn't have an issue with this. Top work guys!

D Fan
1 month ago

Great expert advice

Unfortunately it turned out I couldn't buy the kit from Vunked due to geographical limitations, but Sam was anyway incredibly helpful and gave me great advice to design a suitable electrical system for my conversion, saving me a lot of time and headaches! Highly recommend!

Andrea
1 month ago

Great experience with the consultant…

Great experience with the consultant engineer understanding needs, requirements and skill levels involved in the project. Only suggestion I would make is that rank beginners may not understand connection point requirements of the various components - it would be useful to include on diagrams whether a lug is required or not, and which type/size end to use!

Brittany Hook
3 weeks ago

Great service from start to finish

Great service from start to finish, always available for advice and help, cannot recommend enough, i wouldnt trust my solar/electrics set up with anyone else!!

Carl Longden
1 week ago

Sound advice and no pushy sales.

From initial enquiry to placing our order, over a period of 2 weeks Sam Barker was always ready to offer advice either over the phone or by email. Advice was based on what WE wanted to get from our electrical system. Never felt as though he was upselling, just simply advising the best solution. Checks elsewhere confirmed Sam's advice and design specification was spot on. Thanks Sam. If we ever do this again, I'll be back.

Chris Parkin
1 week ago

Great kit and product backup

Supply of the right kit for our application was made simple by competent, in person, service backup. Wiring diagrams were provided and our technical questions over the phone were given prompt attention and answered in layman's terms. The Vicron Smart Dc to DC charger supplied is an excellent piece of kit.

Gordon McKillop
1 week ago

Brilliant service

Brilliant service

Stuart gardiner
3 weeks ago

My new van build

I was unsure about what I needed for my new van conversion so I used the build feature and arranged a consultation. Sam asked some questions about the build and gave me some options and I went ahead and ordered. The kit was with me in a matter of days from vunked even tho I ordered right after new year! There was a bit of a mix up with my battery delivery from fogstar but Sam was on hand to have it sorted straight away. Can't fault the quality or the service I've recieved from vunked.

Dale Leadingham
2 months ago

Great quick service and spot on wiring…

Great quick service and spot on wiring diagram that was easy to follow!

ian potts
2 months ago

Vunked electric set up

Couldn't recommend vunked enough. I was very apprehensive about the van electrics but at the same time I wanted to give it a go. Sam from vunked was amazing to deal with, from our initial phone call to various e mails and calls during the install (im sure I did his head in) but he was always there to help. The wiring diagrams and instructions you receive are invaluable and easy to follow there is no way I would've been able to work that all out and install. It is very satisfying knowing everything is wired correctly and most importantly safe!!. Cheers Sam

Mark Graham
1 month ago

It's the second time I've used Vunked…

It's the second time I've used Vunked as the service was great last time. Yet again, brilliant! Tried to save a bit by sourcing the main components from Renogy, and Vunked didn't have an issue with this. Top work guys!

D Fan
1 month ago

Great expert advice

Unfortunately it turned out I couldn't buy the kit from Vunked due to geographical limitations, but Sam was anyway incredibly helpful and gave me great advice to design a suitable electrical system for my conversion, saving me a lot of time and headaches! Highly recommend!

Andrea
1 month ago

Vunked excellent…

Purchasing items was easy with expert advice on the website and phone consultation, product's turned up within two days great service, not done instruction yet so hopefully get help during installation if needed.

Mr Nick Betts
2 months ago

These guys are amazing

These guys are amazing! Endlessly helpful even after ordering everything and adding things to the system - offering more wiring diagrams to help build the system at no extra cost and even offering phone calls to discuss what I'm trying to achieve! Could not recommend enough for someone who is inexperienced in electrics and needs some help along the way. Extremely clear instruction manual and wiring diagrams - thanks a lot Vunked team!

James Tilyard
2 months ago

Superb company

As a novice when it comes to van electrics Vunked proved to be my saviour when it came to ordering my electrical system. The website is full of fantastic information, answering all of my queries and helping me decide exactly what I needed and why. The ordering system was so easy to use and "behind the scenes" all the components, such as appropriate wires, fuses etc were automatically added and came in one delivery. It was accompanied by a wiring diagram and more detailed step by step guide which will prove invaluable. I had a small query (due to my ignorance) which I raised by email and Alan answered within minutes with the info required. Overall I'd have no hesitation in recommending Vunked and it's a comfort to know they are there to answer my queries. Well done!

Mr Donald Callum
2 months ago

From the phone call to order, perfect service

From the phone consultation to making the decision what we wanted was straightforward with a consultant listening to our wishes. We were offered several solutions, highlighting the differences between each of them. After our conversation the email gave us all that we ordered with another chance to make changes. No pressure, just a list of all the items where you could add or remove before finalizing your order. Order was confirmed and paid around lunch time, the whole order arrived the next day. Service from start to finish.

Erwin Oosterhoorn
3 months ago

Great service and communication

Great service and communication. The website is great. I'm a complete novice and they were super helpful. Would recommend. FIVE STARS

Emma
2 months ago

Excellent communication top class and service

Excellent communication and service

Daniel Garfoot
2 months ago

Legends

Started designing my system with another company (nohma) and when I came to purchase they ended up disappearing and not returning any calls or messages for 2 weeks. Ended up getting fed up of waiting as I was on a tight schedule so I gave vunked a message. Got a message back the same day and vunked where extremely happy to replicate the system and even price match. Kit then got sent out with wiring diagrams and build instructions being sent the same day as purchase. Instructions are super easy to understand even for me who try to stay away from any electrical jobs. Everything was with me within 2 days. Unfortunately my solar panel had been damaged during transit but when I contacted vunked about what to do they offered either a replacement sent out free of charge or a 50% refund on the panel with a guarantee that if it doesn't work a new panel will be sent no matter how late I do it. Overall my only issue was that I didn't use vunked in the first place. These legends are amazing to work with and cannot recommend them enough.

Josh Scott
3 months ago

Great company pleasure to deal with

Great company pleasure to deal with

Nigel Flatt
3 months ago

Excellent customer support

Really easy order processing. Quick delivery. Excellent after sales communications.

CE
3 months ago

Excellent service and delivery

Excellent service and delivery

Del Sturrock
3 months ago

Vunked excellent…

Purchasing items was easy with expert advice on the website and phone consultation, product's turned up within two days great service, not done instruction yet so hopefully get help during installation if needed.

Mr Nick Betts
2 months ago

These guys are amazing

These guys are amazing! Endlessly helpful even after ordering everything and adding things to the system - offering more wiring diagrams to help build the system at no extra cost and even offering phone calls to discuss what I'm trying to achieve! Could not recommend enough for someone who is inexperienced in electrics and needs some help along the way. Extremely clear instruction manual and wiring diagrams - thanks a lot Vunked team!

James Tilyard
2 months ago

Superb company

As a novice when it comes to van electrics Vunked proved to be my saviour when it came to ordering my electrical system. The website is full of fantastic information, answering all of my queries and helping me decide exactly what I needed and why. The ordering system was so easy to use and "behind the scenes" all the components, such as appropriate wires, fuses etc were automatically added and came in one delivery. It was accompanied by a wiring diagram and more detailed step by step guide which will prove invaluable. I had a small query (due to my ignorance) which I raised by email and Alan answered within minutes with the info required. Overall I'd have no hesitation in recommending Vunked and it's a comfort to know they are there to answer my queries. Well done!

Mr Donald Callum
2 months ago

From the phone call to order, perfect service

From the phone consultation to making the decision what we wanted was straightforward with a consultant listening to our wishes. We were offered several solutions, highlighting the differences between each of them. After our conversation the email gave us all that we ordered with another chance to make changes. No pressure, just a list of all the items where you could add or remove before finalizing your order. Order was confirmed and paid around lunch time, the whole order arrived the next day. Service from start to finish.

Erwin Oosterhoorn
3 months ago

Great service and communication

Great service and communication. The website is great. I'm a complete novice and they were super helpful. Would recommend. FIVE STARS

Emma
2 months ago

Excellent communication top class and service

Excellent communication and service

Daniel Garfoot
2 months ago

Legends

Started designing my system with another company (nohma) and when I came to purchase they ended up disappearing and not returning any calls or messages for 2 weeks. Ended up getting fed up of waiting as I was on a tight schedule so I gave vunked a message. Got a message back the same day and vunked where extremely happy to replicate the system and even price match. Kit then got sent out with wiring diagrams and build instructions being sent the same day as purchase. Instructions are super easy to understand even for me who try to stay away from any electrical jobs. Everything was with me within 2 days. Unfortunately my solar panel had been damaged during transit but when I contacted vunked about what to do they offered either a replacement sent out free of charge or a 50% refund on the panel with a guarantee that if it doesn't work a new panel will be sent no matter how late I do it. Overall my only issue was that I didn't use vunked in the first place. These legends are amazing to work with and cannot recommend them enough.

Josh Scott
3 months ago

Great company pleasure to deal with

Great company pleasure to deal with

Nigel Flatt
3 months ago

Excellent customer support

Really easy order processing. Quick delivery. Excellent after sales communications.

CE
3 months ago

Excellent service and delivery

Excellent service and delivery

Del Sturrock
3 months ago
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Common Questions About Workshop Off-Grid Power

This is the question every lighting-kit seller avoids — and the reason our workshop systems are 48V. Power tools are surge loads: a saw or compressor briefly demands several times its running wattage at start-up. Victron MultiPlus inverter-chargers are built with exactly that surge headroom, and the configurator checks your biggest tool against the inverter’s surge rating rather than leaving you to find out on a Saturday morning. Tell us the tool; we’ll size for it honestly.

Close to the house, often £600–£2,500 — trenching, armoured cable and an electrician — and if the run is short and diggable, that can genuinely be the right answer. The economics flip with distance: long runs, driveways and remote barns regularly quote at £2,500–£10,000 and beyond, before anyone’s dug anything. Off-grid wins twice there: no dig, and the money buys generation instead of a cable.

Honestly, yes. If your whole need is LED lighting and phone charging, a small 12V kit for a few hundred pounds is the right buy, and we’d rather tell you that than sell you a 48V system. This page is for tool-grade power: workshops, working garages and barns where things spin, heat and weld.

A hobby workshop runs beautifully on a 16 kWh Fogstar battery, ~2.8 kW of solar and a Victron MultiPlus-II 5000 — that’s daily lighting, chargers, extraction and real tool use. A working barn steps up to 32 kWh, ~6 kW of solar and a 10 kVA-class inverter for heavier, all-day loads. Both arrive as a complete kit with a wiring diagram for your build.

The honest answer: a UK December produces a quarter or less of July’s solar, so heavy winter use runs as a hybrid. A hobby workshop typically needs two or three hours of generator charging a week in midwinter; a working barn roughly an hour per working day — against two hundred-plus hours a month if the generator were doing the whole job. And one warning from experience: a quietly added 2 kW heater doubles a workshop’s December demand. Heat the person, not the building — and let the calculator show you the difference.

The wrong question, usually. A generator alone means noise, fuel runs and an engine idling at part-load through every job — the expensive way to run one. Solar and battery alone is silent and free to run, but midwinter needs help at heavier loads. The right answer for most workshops is the hybrid: battery carries the work, solar refills it most of the year, and the generator becomes a backup charger running a couple of hours at its efficient sweet spot when December demands it.

You or your electrician. The DC side is well within a competent DIYer’s reach with the wiring diagram and guide we ship; the 230V side is a straightforward job for your local electrician to connect and certify from the same diagram. Either way, our support team is on hand from unboxing to commissioning.

Book a Free Consultation

Talk to our team and we'll spec your system with you. No pressure, no obligation.