The pie charts provided compare the total volume of electric power that was generated by utilizing different methods in Scotland twenty years ago and last year.
It is obvious from the graph that the Scottish energy sector did not practice a significant alteration and modification within two decades.
As the main sources of energy, in both time periods, coal and gas usage kept their dominances in the amount of total production although there was a reduction on the levels 41.4% to 32.7% and 22.3% to 21.7% respectively . Furthermore, other categories that faced with a slight decrease are different types of hydro methods and combined indicators of these two sources were 11.8% 20 years before and it was dropped to 10.1% last year.
Nevertheless, there had been an immense rise on certain methods of energy production as oil and renewable resources though they had comparably small fractions on the whole volume. At the beginning of compared phase, only 2.1% of all energy was taken by using oil but in previous year it was almost doubled and reached out 4.0%. Other renewables became more widespread and increased from 2.8% to 5.1%. Additionally, the category of nuclear faced with a moderate surge and 26.4% of all energy generated in this section last year which it was 19.6% at initial point.