F1 Energy Recovery System (ERS) Explained

The Energy Recovery System (ERS) is a component of the Formula 1 hybrid power unit that captures electrical energy generated during braking and converts heat from the turbocharger. This energy is stored in a battery and then deployed to give the car an additional boost of electrical power. The ERS can add up to 160 horsepower for short bursts per lap. Managing when to harvest and when to deploy this energy is a key strategic and technical challenge for drivers and teams.

Example: The team have asked him to switch to a different ERS mode to preserve the system for the final stint.