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The increased power can stem from various mechanisms, for example by changing engine modes or utilizing energy stored in an extra battery.

Starting with its debut season, Formula E featured Fanboost, where fans were able to vote for their favourite driver via various social media channels to give them an extra power boost at each race.

For the 2018–19 season, an Attack Mode was also introduced, where drivers receive a boost by driving through a designated area of the circuit off the racing line.

Before the 2022–23 season, Fanboost was removed from Formula E.[2] In Formula One, the kinetic energy recovery system (KERS) functions in a similar manner; however, it relies on regenerative braking to store energy for later use, rather than simply increasing the engine's power, as is the case in some other systems.

For example, a driver may choose to operate the system to defend a position, or to improve lap time during qualifying or during a race while performing an undercut or overcut.