The Formula One 2020 calendar will be a record-breaking 22 races as it has been officially confirmed by the sport’s governing body, the FIA earlier this year. However, the drivers will use one extra MGU-K next season to help cope with the longest calendar in the history of F1.

This change was confirmed in the 2020 rules, which were officially published on 4 December, after a meeting of the FIA World Council, motorsport's legislative body.

Since the hybrid era with its complex V6 turbo- hybrid engine was introduced in 2014, there have been limits on how many individual components within the power units can be used.

for example, in 2014 & 2015 each driver was permitted to use 5 of every element - the internal combustion engine, turbocharger, the heat (MGU-H) and kinetic (MHU-K) energy-based motor generator units, control electronics and energy store while in 2016, 2018 & 2019, drivers were given a grid penalty if they used more than 3 engines, turbos or MGU-H components over the 21-race schedule, while the MGU-K, control electronics, and energy store limit halt at 2 components for each driver. (in 2017 it was allowed 4 engines as the calendar featured one less Grand Prix.)

We should know that the kinetic component or the MGU-K is a sensitive element of the V6 turbo-hybrids that collects kinetic energy to be stored in the battery, and produces 120kW of power. 

I can't wait for the season to begin, 98 days until the historic 2020 season.