top of page
Search

EVs are 2–3 times more energy efficient than internal combustion engines.

  • Writer: Vikram Kumar
    Vikram Kumar
  • Sep 16, 2025
  • 1 min read

#EVs are typically 2–3 times more energy efficient than internal combustion engines.



It’s not perfect, but it’s satisfying to drive on clean energy. Even when the electricity comes from fossil fuels, EVs still use about 50–70% less fuel to travel the same distance. This is why #Grid expansion is the main challenge.



#Electrification just makes sense, not only for cars, but also for heat pumps replacing gas boilers. Heat pumps deliver 3–5 times more heat from the same energy input, compared to around 90% efficiency for gas boilers.


Hydrogen

Electrolysis (65 to 70 percent), compression or liquefaction (70 to 80 percent), storage and transport (90 to 95 percent), reconversion in fuel cells or turbines (40 to 50 percent). Multiply these and you land around 25 to 30 percent round trip efficiency.



Batteries

Charge and discharge efficiency typically 90 to 95 percent, with system level round trip efficiency 80 to 90 percent.



Lifecycle

EV batteries often last 10 to 15 years, with second life applications extending usefulness another 5 to 10 years. Unlike hydrogen, battery materials retain high residual value, enabling recovery of lithium, nickel, cobalt, copper and aluminium at more than 90 percent rates in advanced recycling systems.



 
 
© Ventus Ltd
bottom of page