The pie charts show how electricity was generated from five energy sources in a European country in 2000 and 2020.
Overall, it is evident that the percentage of electricity generated from coal was the highest in 2000, while solar was the lowest. By contrast, hydropower generated the highest proportion in 2020 among the five, while nuclear generated the lowest. Another notable point is that the proportion of solar and hydropower increased in 2020, the percentage of coal and nuclear decreased, and natural gas remained unchanged.
Looking at the details, the proportion of coal decreased from 35% in 2000 to 20% in 2020. The percentage of nuclear energy declined from 20% in 2000 to 15% in 2020. The proportion of natural gas stayed unchanged at 25% from 2000 to 2020.
Regarding solar and hydropower energy, the figure for solar solar rose in 2020 to four times its 2000 level, from 5% in 2000 to 20% in 2020. Ultimately, the quantity of hydropower grew from 15% in 2000 to 20% in 2020.
