Build Your Off-Grid 48V Energy System
Build Your Off-Grid 48V Power System
Solar, battery and inverter sized by a half-hourly simulation of your year. Every system is checked by our engineers before you buy.
4.9/5Victron, LuxPower and Fogstar hardware, designed for UK winters
Supply
Most homes, cabins and workshops are single-phase. Choose three-phase for farms and sites with three-phase machinery or a three-phase supply.
Supply
Most homes, cabins and workshops are single-phase. Choose three-phase for farms and sites with three-phase machinery or a three-phase supply.
Install Type
Choose how your system arrives. Either way you pick the same parts below — a board just means we wire the plant-room end for you.
Install Type
Choose how your system arrives. Either way you pick the same parts below — a board just means we wire the plant-room end for you.
Daily usage
Start with a site like yours — it ticks the typical appliances — or type your usage straight in. The simulation sizes everything from this figure.
Battery
Choose the size of your 48V battery bank.
Battery System
Choose the size of your 48V battery bank.
Battery System
Choose the size of your 48V battery bank.
Solar
Size a ground or roof array to keep your battery bank charged all year.
Solar System
Size a ground or roof array to keep your battery bank charged all year.
Custom solar array sizing available.
Solar System
Size a ground or roof array to keep your battery bank charged all year.
Custom solar array sizing available.
230V
Convert 48V battery power to 230V mains and charge from a generator or the grid.
230V System
Convert 48V battery power to 230V mains and charge from a generator or the grid.
230V System
Convert 48V battery power to 230V mains and charge from a generator or the grid.
Battery Monitoring
Victron Cerbo GX MK2 — included with every off-grid system.
Battery Monitoring
Victron Cerbo GX MK2 — included with every off-grid system.
Victron Cerbo GX MK2Included
The Cerbo GX MK2 is the brain of the system. It talks to the batteries, MPPT solar chargers and inverter, logs everything to Victron's free VRM portal so you can check the system from your phone anywhere, and lets us diagnose and tune it remotely.
Wall-mounted GX Touch 70 for the plant room. Without it you use the app and VRM.
Battery Monitoring
Victron Cerbo GX MK2 — included with every off-grid system.
Victron Cerbo GX MK2Included
The Cerbo GX MK2 is the brain of the system. It talks to the batteries, MPPT solar chargers and inverter, logs everything to Victron's free VRM portal so you can check the system from your phone anywhere, and lets us diagnose and tune it remotely.
Wall-mounted GX Touch 70 for the plant room. Without it you use the app and VRM.
Generator
Optional. Tell us if you have, or will add, a generator — the simulation shows how little it needs to run once the battery and solar are in.
Generator
Optional. Tell us if you have, or will add, a generator — the simulation shows how little it needs to run once the battery and solar are in.
4.9/5 • 100+ reviews“It is very satisfying knowing everything is wired correctly and most importantly safe!!” Mark Graham
Solar & battery days
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Solar & battery days
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Tightest month
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