The pie charts illustrate the variations in the percentage of energy generated from different natural sources in a certain country in 1985 and 2003.
Overall, it is evident that oil and nuclear power were used less over the period. Whereas other sources showed an increasing trend over the period. Additionally, traditional resources (oil) were dominant during the timeframe.
Initially, in 1985, petroleum products made up over 50% of total energy production, while nuclear constituted 22% of energy output and was the second largest source of power generation. In the same year, fossil fuels like natural gas and coal accounted for 13% and 8%. Hydro sources comprised a small segment at 4%.
By 2003, petroleum declined to 39% of energy output, but it was still the prevalent source of power. Nuclear energy decreased significantly from 22% to 8% over the period. In contrast, fossil fuels rose sharply, accounting for 23% and 22% of total power generation, respectively. Simultaneously, the ‘Other Renewable’ category increased from the smallest share of production to 4% of the total energy supply, equalling the share of ‘Hydro’.
