The bar chart illustrates the percentage of renewable energy sourced from total energy supply in Australia, Germany, Norway, and Iceland over the years 2000, 2004, and 2007.
Overall, it is evident that Norway had the highest proportion of renewable energy throughout the years assessed, while Australia consistently recorded the lowest figures.
In 2000, Norway led the chart with an impressive 54% of its energy supply derived from renewable sources, a figure that increased to 58% in 2004 and surged dramatically to 92% by 2007. Iceland followed closely, starting at 44% in 2000, rising to 46% in 2004, and maintaining that same percentage in 2007. Germany’s contribution to renewable energy was more modest, beginning at 6% in 2000, increasing to 7% in 2004, and reaching 10% in 2007. In contrast, Australia reported the least reliance on renewable sources, commencing at 8% in 2000 and registering slight changes to 9% in both 2004 and 2007, marking a stagnation in its renewable energy use.
The increasing trajectory observed in Norway’s utilization of renewable energy is particularly noteworthy. While both Norway and Iceland experienced notable increases in their renewable energy proportions, Norway’s growth was markedly steeper, particularly between 2004 and 2007, when it escalated by 34%. Conversely, Iceland, after a small rise up to 46% in 2004, remained static through 2007, demonstrating its inability to match Norway’s advancements. Germany, albeit progressing slowly, managed to enhance its renewable energy utilization from 6% to 10% over the examined years. Meanwhile, Australia not only remained at the bottom of the chart but demonstrated stagnation, with its percentages remaining unchanged in the later years, thereby highlighting a concerning lack of growth in its renewable energy efforts.