Harvesting :

Harvesting refers to the capture and storage of, otherwise lost, energy for use on a flying lap or when needed to assist a passing manoeuvre. 

There are two types of ERS (Energy Recovery System) on F1 cars – the MGU-K and MGU-H. MGU refers to Motor Generator Unit, K refers to kinetic where energy is harvested from braking and H refers to heat where energy is harvested from the engine. 

Cars will be going slower, and their rain light flashes when they are harvesting, as the process is taking energy away from the Power Unit

Andrew Burden

The author Kiwi F1 Fan