Do pure electric vehicles consume electricity when stuck in traffic?

[McChase]

Pure electric vehicles do not consume electricity when stuck in traffic. Frequent braking: At low speeds, the required driving force is also small. However, due to the very low speed, the recovery efficiency is low, and the recovered portion is minimal, better than nothing. Low-load driving: At low speeds, the required driving force is also small. Under low-load and low-speed conditions, the efficiency of the motor is also low. Frequent starts: When it's time to move, you must move, even if it's just a step slower. If a gap opens up ahead, another car will quickly cut in. The motor starts in milliseconds, basically describable as "instantaneous response," so the loss in this part can be ignored.

[Poppy]

I've been driving an electric car to commute for almost two years, and it does consume more electricity when stuck in traffic. Firstly, the most power-hungry component in an electric vehicle during traffic jams is the air conditioning system. Whether it's cooling in summer or heating in winter, both the compressor and heater have to work continuously. Moreover, frequent starts and accelerations in stop-and-go traffic are particularly energy-intensive, as the electric motor requires a significant current to move from a standstill. I've observed the dashboard and noticed that being stuck in city traffic for half an hour can drain about 5% of the battery, with the energy consumption during acceleration being about 40% higher than when driving at a constant speed. Additionally, devices like the audio system and screens in the car also continuously consume power. However, compared to fuel-powered cars that burn gas even when idling, electric vehicles are much more economical—at least they don't consume power when stationary, only when moving. A tip is to slightly reduce the air conditioning fan speed during traffic jams, which can save a considerable amount of electricity.

[KimberlyLee]

As an electric vehicle owner, I've specifically researched energy consumption during traffic jams. The core issue lies in reduced drive efficiency at low speeds, where the motor must overcome resistance but cannot effectively recover energy. The three most power-intensive aspects during traffic congestion are: first, the air conditioning system, especially seat and cabin heating in winter; second, frequent acceleration from standstill, where each start's instantaneous consumption rivals highway driving; and third, continuous operation of electronic devices. Interestingly, I've found that enabling strong regenerative braking mode actually increases power consumption, as repeated charging and discharging at low speeds proves inefficient. Compared to fuel vehicles idling and burning gas, EVs only consume electricity for these systems - about 1-2 kWh per hour in traffic, translating to mere pennies in cost. My recommendation is to maintain following distance and avoid sudden acceleration in congested areas.

[MacFinley]

Pure electric vehicles do consume electricity in traffic jams, but the consumption pattern is entirely different from fuel-powered cars. The main consumption comes from maintaining onboard systems: the air conditioning compressor running continuously is the most power-hungry, especially when cooling in summer with power reaching 3-4 kilowatts; followed by electronic devices like the central control screen and audio system; and lastly, the thermal management system of the power battery. Interestingly, frequent starts in traffic jams consume more electricity than steady-speed driving because the motor needs to output high torque with each acceleration. However, since there's no engine idling, almost no electricity is consumed when stationary. Overall, electricity consumption per 100 kilometers in urban congested areas is about 30% higher than on smooth roads. Fortunately, electricity is cheap, making the cost of consumption less than one-third that of fuel-powered cars.

[DiKennedy]

Pure electric vehicles definitely consume more electricity in traffic jams, which I have personally experienced. The main power consumption comes from three aspects: the air conditioning is undoubtedly the biggest consumer, with the heating system in winter reaching up to 5 kW, equivalent to running 10 electric heaters simultaneously; followed by the repeated starts and stops in traffic, where each acceleration requires the motor to deliver tens of kilowatts of instantaneous power; and lastly, the continuous power draw from various electronic devices like lights and screens. However, one advantage over fuel-powered cars is that electric vehicles consume no energy when stationary, whereas an idling gasoline car can burn up to 2 liters of fuel per hour. My experience suggests that for traffic jams lasting more than 10 minutes, raising the air conditioning temperature by 2 degrees and lowering the fan speed by one notch can save 20% of the battery power. If you activate ECO mode, the system will automatically reduce the air conditioning power.

[LeLucy]

Driving an electric vehicle in traffic jams does consume additional power, but the mechanism is entirely different from fuel consumption in gasoline cars. The main power drains during traffic congestion come from: continuous operation of the air conditioning system (the major contributor), standby power consumption of electronic devices, and most importantly – energy loss during low-speed driving. This is because the regenerative braking system in electric vehicles becomes inefficient below 30 km/h, and frequent start-stop movements actually consume more electricity. From my observation, power consumption per 100 km can be 50% higher in severe congestion compared to normal driving conditions. Solutions include maintaining steady speed when following traffic to reduce unnecessary start-stops, using air recirculation mode appropriately to reduce AC load, and turning off entertainment systems during short traffic halts. However, the advantage of EVs is that they consume almost no power when stationary.