What does Heat Pump mean?

Explanation

A heat pump is an HVAC component that heats the cabin by moving heat from outside air into the car, rather than generating heat from scratch using an electric resistance heater. This is significantly more efficient: a heat pump can produce 2-3 units of heat for every unit of electricity consumed, while a resistance heater converts electricity to heat at a 1:1 ratio.

In winter, this efficiency difference matters enormously. An EV without a heat pump might lose 30-40% of its range to cabin heating in cold weather. An EV with a heat pump might lose only 15-25%. That difference can be the deciding factor in whether you make it to the next charger or arrive with a comfortable margin.

Not all EVs come with heat pumps. Some include them as standard equipment, others offer them as an option, and some do not offer them at all. If you live in a cold climate and are choosing an EV, a heat pump is one of the most impactful features for real-world winter range. Some manufacturers also use the heat pump to warm the battery before fast charging, further improving cold-weather charging performance.

This standard is maintained by International Energy Agency.

Where you'll see this

• In vehicle specifications

Common confusion

Some people think heat pumps stop working in extreme cold. Modern automotive heat pumps work well down to about -15 to -20 degrees Celsius. Below that, the car switches to supplemental resistance heating, which uses more energy.

Example

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