Guides
Decision-journey guides: the plan most people try, why it's wrong, and the correct path.
#1Using your EV (V2L) as home backup — the changeover and earthing nobody explains
How to use an electric vehicle's V2L output to run a small essential load — the scheduled changeover and the floating-output earthing problem, explained and referenced to BS 7671.
Published · Last reviewed 2026-06-14
#2V2L vs V2H vs V2G — definitions and boundaries
What V2L, V2H and V2G actually mean, where the boundaries sit, and why a plain V2L socket is outside ISO 15118 and the DNO G98/G99 regime until it is wired into fixed installation or run in parallel.
Reviewed — public with Not-confirmed gates · Last reviewed 2026-06-14
#3Can my EV power my home in the UK?
A plain answer for homeowners: yes, an EV with V2L can run a small essential load, but not the whole house, and not by plugging into a socket — here is what is realistic and what it takes.
Reviewed — public with Not-confirmed gates · Last reviewed 2026-06-14
#4What V2L can actually power — essential loads vs whole-home
How much an EV's V2L output can realistically run — typical wattages of essential loads, why whole-home is a gross overload, and how to size to within ~80% of the V2L rating.
Reviewed — public with Not-confirmed gates · Last reviewed 2026-06-14
#5The wrong plan — why you cannot fool an ATS into selecting your car
Why a smart relay cannot make a cheap automatic transfer switch select your EV on command: an ATS senses source loss, not a schedule, has no control input, and the relay cannot switch a 63 A path.
Reviewed — public with Not-confirmed gates · Last reviewed 2026-06-15