The pie charts present data on the amount of electric production generated by different sources in Germany, measured in unit.
Regarding Germany, coal was among the most primary power source, accounting for 60 units in the year 1990, followed by hydro power and oil with 25 and 20 units, respectively. The remaining energy sources made up only a minimal amount of electricity, ranging from 15 to 5 units. By 2010, an opposite trend was observed in the distribution of these sources with the figure for solar was 11 times as high as in 1990, making it the most dominant producer, while in terms of coal, constituted only 45 units and ranked second after all. In addition, biomass and natural gas notably shared an equal increased units, whereas hydro remained unchanged in both examined years.
Turning to Japan, coal similarly dominated other sources with only 5 units lower than that in Germany in 1990, while the figures for renewable ones, except for hydro, were much lower, ranging from only 12 to 5 units.
Overall, while the use of renewable energy sources increased, there was a decrease in energy production from fossil fuels. Additionally, the gap between energy output rates in the two years narrowed significantly compared to the previous ten years.
