Is bidirectional charging worth it?
Vehicle to home (V2H): Bidirectional V2H charging turns your car battery into a backup power source for your home. This also allows for more efficient energy usage and potential cost savings and typically relies on technology that’s built into the charger. Generally, most EVs can sit for months without charging, providing they are stored at an 80% charge in a temperature-controlled environment. But be warned — if your EV battery drops to 0% and sits there, it can damage cells and permanently lower your high-voltage battery’s capacity.While it’s safe to leave your electric car plugged in for days or even weeks, it’s not always ideal for battery health. Keeping the battery constantly topped up to 100% via trickle charging can cause gradual wear over time. Batteries prefer to sit slightly below full charge when not in use.It’s best to keep your EV’s charge between 20% and 80% most days. Daily top-ups prevent the need for full charges which helps maintain battery health. If you charge the EV battery up to 100% regularly, it can strain it.Home charging is the easiest and cheapest way to charge if you own an EV. Gone are the days of special trips to the petrol station, instead your car will happily recharge while you’re sat with your feet up indoors.
Can any EV do bidirectional charging?
Does every EV support bidirectional charging? Not every EV has bi-directional capabilities, but there are some available in the UK that do. The most common feature is V2L, with fewer models able to take advantage of V2G and V2H. In 2026, V2H is the version of bidirectional charging that works within today’s rules and delivers value without relying on market access or payments. It turns an EV into a household energy asset first, rather than a grid resource.