The given pie charts compare the percentage of energy generated from five different sources—coal, gas, nuclear power, hydroelectricity, and renewables—in a particular country in 2000 and 2020.
Overall, fossil fuels remained the dominant sources of energy production in both years, but there was a noticeable shift toward renewable energy sources by 2020.
In 2000, coal was the primary source of energy, contributing to 40% of the total production, while gas accounted for 30%. Nuclear energy made up 15% of the total, whereas hydroelectric power and renewable sources contributed the smallest shares, at 10% and 5%, respectively.
By 2020, there were significant changes in the distribution of energy sources. The reliance on coal decreased to 30%, while gas usage remained relatively stable at 29%. Interestingly, the proportion of renewable energy doubled from 5% to 15%, indicating an increasing focus on sustainable energy solutions. Hydroelectric power also saw a slight increase to 12%. Meanwhile, nuclear power’s contribution remained nearly the same, decreasing marginally from 15% to 14%.
Overall, while fossil fuels continued to be the primary sources of energy in 2020, the country made noticeable efforts to transition towards renewable and sustainable energy sources. The decline in coal usage and the rise in renewable energy suggest a shift toward environmentally friendly policies and technological advancements.