The illustration depicts the system of making electricity from coal.
Overall, the 9-step process begins with the placement of coals and ends with the poduction of energy as electricity. This is achieved by crushing coal that can be turned into a gaseous form, and at the end, electricity is placed into a gas power plant.
The act starts with substance that is in a coal mine, and then this material is crushed. It is transported into a storey, however, the next stage is to put fragments into a truck which brought to a gassifier.
At step 6, they are separated from solid materials to become gas, and the resulting matter is tranferred into a gas power plant where it is manufactured into electricity that is distributed to any buildings such as houses and industries. From a gas power plant electricity can also be made as heat waste, though.