Do you have a minute to answer an electric vehicle survey? Start the survey | No thanks

What's the difference between a plug-in hybrid and a self-charging hybrid?

Can you explain the difference between a plug-in hybrid and a self-charging hybrid? What are the relative advantages/disadvantages of the two technologies?

Asked on 2 April 2019 by Penner

Answered by Andrew Brady
A self-charging hybrid combines an electric motor with a petrol or diesel engine. The conventional engine charges the battery, meaning the car can run for (very) short distances under electric power alone. As well as the engine, there are also other ways hybrids can recuperate energy for the battery - through regenerative braking, for example. The disadvantage of hybrid cars is they're usually more expensive to buy than petrols and diesels, and they're not particularly suited to high-mileage motorway driving. They're more environmentally-friendly around town, however.

A plug-in hybrid (also known as a PHEV) has a much bigger battery. This needs to be charged externally - using a dedicated electric car charger installed at home, for example. PHEVs have increasingly longer electric ranges, with some models now able to cover around 40 miles under electric power alone. The advantage of this is that, if you can charge at home and most of your journeys are relatively short, you might find that you can cover most journeys under electric power without using any fuel. Of course, the petrol or diesel engine is still there if you do need to cover the occasional longer journey. The disadvantage is, once the battery's flat, the car is lugging around a lot of unnecessary weight and will be thirstier than a normal petrol or diesel model.
Similar questions
I have owned Toyota hybrids for a few years now and have been satisfied with the quality and performance. My wife and I cover about 12,000 miles a year. It's mixed driving (motorway, country roads and...
I'm looking to replace my Mistubishi Outlander PHEV. I need an estate car with hybrid/plug-in, large boot (I've got dogs) and, ideally, occasional 4WD. I do sometimes use the car to pull a caravan, and...
When electric vehicles are discussed, one thing I do not see mentioned is whether older drivers should change from manual to electric. Electric vehicles must be automatic or equivalent to an automatic....

Value my car