PKS is the shell of a palm kernel, or palm seed. Palm fruit was first used to make palm oil. Palm oil is an extract that uses the filling of the palm fruit.The portions of the shell not used to create palm oil is referred to as PKS.
The calorific value of PKS is around 3500 to 3800㎉per 1 kg.
The calorific values of equivalent biomass fuels is around 2100 ㎉ for wood chips and 3800 ㎉ for wood pellets. Therefore, it can be said that PKS produces heat efficiently with its high level calorific value.