EV Basics
If you've never owned an EV, the conversation around them can sound like a different language. This guide strips out the jargon and explains what an electric vehicle is in plain English — how it works, what the numbers mean, what's different from a petrol or diesel car day-to-day, and what to expect if you're thinking about your first one.
An electric vehicle (EV) is a car powered by a battery rather than a petrol or diesel engine. Plug it in, the battery fills up, and that energy drives an electric motor that turns the wheels. There is no fuel tank, no exhaust pipe, no gearbox in the traditional sense, and almost nothing under the bonnet that resembles a petrol engine.
Most new EVs sold in the UK, France, Italy and Australia in 2026 are battery electric vehicles (BEVs) — fully electric, no petrol involved. The other categories you'll hear about — plug-in hybrid (PHEV), self-charging hybrid (HEV) — are different things; our BEV vs PHEV vs hybrid guide explains how.
Under the floor of a modern EV sits a lithium-ion battery pack — usually 50 to 90 kWh of usable capacity for a typical car. At the rear (and sometimes also the front) is one or two electric motors. A power electronics box converts the battery's DC into the AC the motor uses. That's essentially it for the powertrain.
There's no oil to change, no spark plugs, no exhaust system, no cambelt and no clutch. The drivetrain is dramatically simpler than a petrol car, which is why EV servicing is cheaper and faster (see our EV vs petrol comparison).
kWh stands for kilowatt-hour and it's the unit you'll see everywhere in EV land. It's a unit of energy — specifically, it's the amount of energy used by a 1 kW device running for one hour. Your kettle (about 3 kW) running for 20 minutes uses 1 kWh.
An EV battery's size is measured in kWh — a Tesla Model 3 LR has roughly 75 kWh of usable capacity. Your home electricity bill is measured in kWh. The price you pay at a charger is per kWh. Once you understand kWh, the rest of the maths is straightforward arithmetic. Our charging cost guide walks through the formulas.
| Thing | Approximate kWh |
|---|---|
| Kettle for 20 minutes | 1 kWh |
| UK home daily electricity (average) | 10-12 kWh |
| Driving an EV 100 km | 15-20 kWh |
| A full Tesla Model 3 LR battery | 75 kWh |
| A full Hyundai Ioniq 5 (77) battery | 77 kWh |
Range is the distance an EV can drive on a full battery. Manufacturers quote it using a lab-based test called WLTP in Europe and Australia. WLTP numbers are optimistic — they're measured at moderate temperatures, gentle acceleration, and modest speeds. Real-world range is typically 15-25% less in mild weather, and 25-40% less in cold winter conditions.
A Tesla Model 3 LR with a WLTP figure of 629 km will realistically do around 480-520 km in mild mixed driving, dropping to around 380-420 km in 0°C winter. Our winter range guide unpacks the cold-weather numbers.
Three speeds, broadly. Slow (3-pin granny cable, around 2.3 kW) takes 20+ hours for a full charge — fine as a backup, slow as a daily routine. Home wallbox (typically 7 kW) gives you a full charge overnight from a typical state. Rapid DC charging on public networks (50-350 kW) gets you from 20% to 80% in 20-40 minutes on most modern EVs.
Around 80% of all kWh delivered to private EVs in 2026 goes in at home. Public charging is mainly used on long trips, which is exactly the right way around for both cost and convenience. See our charging for beginners guide for the day-one walkthrough.
Almost everything you'd expect to be the same is. Steering, brakes, indicators, demisters, sat-nav, radio — identical experience. The differences are quieter than expected and almost all in your favour: silent, instant acceleration from a standstill; no warming-up needed in cold weather; no trips to a fuel station (you wake up to a full battery every morning); and one-pedal driving via regenerative braking, which is one of the small EV joys that nobody talks about until they've driven one for a week.
The two things that take genuine adjustment are the road-trip rhythm (rapid stops every two hours instead of a five-minute petrol fill) and the mental model of leaving home with whatever charge you happen to have, rather than starting every drive at 'full'. Both become second nature within a month.
The best way to understand what changes when you switch is to walk through a typical week. Monday morning: car was plugged in overnight, sits at 80% in the driveway. Drive 35 km to work and back, arriving home at 68%. Plug in again, scheduled charge runs from 11.30pm to 5am at £0.075/kWh — total cost for the day's commute, around £0.85.
Tuesday-Thursday: same pattern. Friday: 250 km round trip to see family — arrive there at 32%, plug into their granny socket overnight (free with a contribution to their tea), come home Sunday at 65%. No public charging used all week. Total fuel for the week: roughly £4.50, against £18-22 for the petrol equivalent.
The pattern that emerges is that for a typical commuter, home charging covers everything except long road trips. Public charging becomes an occasional, planned event rather than a weekly chore. The mental model shifts from 'I need to refuel' to 'the car refuels itself while I sleep'.
Five myths that still circulate and what the actual 2026 data says. Myth 1: 'EV batteries die after 8 years.' Reality: large-fleet studies (Geotab, Tesla, Hyundai) show modern EV batteries retain 85-90% capacity at 200,000 km. Most outlast the rest of the car. Myth 2: 'EVs catch fire more than petrol cars.' Reality: insurance data from the UK, Norway and Australia consistently shows EV fire rates are 10-50× lower than petrol cars per registered vehicle.
Myth 3: 'The grid can't handle EVs.' Reality: National Grid ESO modelling shows even 100% UK EV adoption would add ~10% to total electricity demand, easily absorbable with smart charging. Myth 4: 'EVs are worse for the environment than petrol cars when you count manufacturing.' Reality: every credible whole-life-cycle study (ICCT, T&E, BloombergNEF) shows the manufacturing carbon debt is repaid within 2-3 years of driving even on a fossil-heavy grid. Myth 5: 'EVs are only for rich people.' Reality: used EVs from £10-15k (Nissan Leaf, Renault Zoe, MG ZS EV) are now mainstream and cheaper to run than any petrol equivalent.
Test driving an EV requires a slightly different checklist than a petrol car. Five things worth doing on the test drive. First, find out how strong the regen braking is and whether it's adjustable — one-pedal driving is divisive and you want to know if you can configure it your way. Second, try the manufacturer's app on your own phone before leaving the dealer — it'll be in your hand many times per week.
Third, check rear visibility and parking aids — many EVs have small rear windows because of aerodynamic styling. Fourth, ask to see the charging port location and connector type (CCS2 is standard in 2026 in our four markets). Fifth, ask about realistic range in your local climate, not the WLTP figure — a good dealer will know.
Bring a normal-shopping load (sports kit, child seat, push-chair) to check boot space and frunk. Don't worry about not test-driving in traffic; EVs are at their best in stop-start urban driving, where they feel quieter and smoother than any petrol equivalent.
Put this into practice
