Car Efficiency with EV!
Lucas Schneider
| 26-05-2026
· Automobile team
Do you know, Friends? Urban driving patterns unintentionally expose the weakness of fuel-based engines. In cities like Jakarta, daily travel is dominated by stop-and-go movement rather than steady cruising. Gasoline engines perform poorly in such conditions because repeated acceleration and braking demand constant fuel input.
Even when stationary, the engine continues consuming fuel to stay active. EVs, on the other hand, consume almost no propulsion energy when stopped. This difference becomes especially important in congested environments, where time spent idling can represent a large portion of the journey. As a result, EV efficiency often improves precisely where traffic is worst.

Turning Energy into Motion Without Excess Waste

The core reason EVs outperform fuel-burning cars in efficiency lies in how they convert stored energy into movement. An electric motor delivers power directly to the wheels with minimal mechanical complexity. In real-world conditions, modern EV drivetrains typically convert a very high portion of electrical energy into motion, often in the range of roughly four-fifths or more depending on driving conditions.
By contrast, internal combustion engines lose a large share of fuel energy as heat. Every time gasoline ignites inside an engine cylinder, most of the energy is released in the form of heat escaping through the exhaust system and cooling components. Only a smaller fraction is actually used to move the vehicle. This is not a design flaw of a single model, but an inherent limitation of combustion-based energy conversion.

The Hidden Advantage of Regenerative Braking

One of the most practical advantages of EVs becomes obvious in real traffic conditions, especially in dense urban areas like Jakarta where braking is frequent. Traditional cars waste kinetic energy every time the driver slows down; that energy becomes heat in the brake pads and is permanently lost.
Electric vehicles approach this differently through regenerative braking. When the driver releases the accelerator or applies the brake lightly, the electric motor temporarily switches roles and acts as a generator. Instead of discarding motion energy as heat, the system captures part of it and feeds it back into the battery.
This means that in traffic-heavy environments, EVs are constantly recycling energy that fuel cars simply throw away. Over long commutes filled with stops at intersections, this difference becomes highly significant in overall efficiency.

Efficiency That Improves in Real City Conditions

Many people assume that efficiency claims are only relevant in laboratory tests or controlled driving cycles. In reality, EVs often perform better in real-world city conditions than on paper. Fuel engines are most efficient at steady speeds, usually on highways, but they struggle in low-speed traffic where idling and repeated acceleration dominate.
Electric motors behave differently. They maintain strong efficiency across a wide range of speeds and do not need to “idle” in the traditional sense. When an EV is stopped at a traffic light, it consumes almost no energy for propulsion systems. There is no fuel being burned just to keep the engine running.
This becomes especially relevant in urban commuting patterns across Southeast Asian cities, where congestion is part of daily life rather than an exception. In such environments, EVs can reduce wasted energy simply by avoiding idle combustion entirely.

Mechanical Simplicity Reduces Energy Loss

Another overlooked factor is mechanical complexity. A combustion engine relies on dozens of moving parts: pistons, crankshafts, valves, timing systems, and transmission components. Each stage introduces friction and energy loss.
Electric vehicles eliminate many of these layers. A typical EV drivetrain has far fewer moving parts, which reduces internal resistance and improves consistency in energy delivery. The absence of multi-gear shifting systems in many EV designs also helps maintain smooth energy use without repeated power interruptions. Less mechanical friction means less energy wasted before it even reaches the wheels.

Energy Use Across the Whole Journey

When considering efficiency, it is not just about what happens inside the car but also how energy is used from source to wheel. Electricity generation can vary depending on the grid, including renewable sources or fossil fuel plants. Even so, EVs still maintain an advantage because large-scale power generation is generally more efficient than thousands of small combustion engines operating independently.
Fuel vehicles, on the other hand, lose energy at multiple stages: extraction, refining, transportation, and finally combustion inside the engine. Each step adds cumulative loss before the fuel even begins to move the car.

A Clear Shift in Everyday Driving Experience

What makes EV efficiency especially noticeable is not just technical data, but how it changes driving behavior. Acceleration feels immediate because electric motors deliver torque instantly. Energy recovery during braking becomes part of the rhythm of driving. Even air conditioning and onboard systems are optimized to draw energy more precisely compared to engine-driven accessories in conventional vehicles.
Electric vehicles are more efficient not because they improve one single aspect, but because they eliminate multiple layers of energy waste at once. From direct power delivery to regenerative braking and reduced mechanical friction, every stage of motion is optimized to retain energy rather than lose it. In a world where cities are becoming more congested and energy demands continue to grow, this shift is not just technological progress—it is a fundamental rethink of how movement should work.