The graph below illustrates the percentage of renewable energy adoption along with the intensity of government policy support over a ten-year period from 2010 to 2020.
Overall, the proportion of renewable energy usage experienced a sharp increase in the first half of the period, followed by a slower growth rate in the latter half. Additionally, government policy support showed a slight initial rise, which was followed by more significant growth in the later years.
According to the graph, the share of renewable energy rose rapidly in the early years and then grew more gradually thereafter. During the period from 2010 to 2015, there was a remarkable increase, starting from 10% at the beginning and steadily climbing to approximately 40% by 2014. This figure continued to rise, reaching around 49% in 2015. In the latter part of the period, which exhibited more moderate growth, the percentage of renewable energy adoption remained about 55% in 2016. Over the next three years, this figure continued to rise until it hit 75% in 2019, ultimately reaching its peak at over 80% by the end of the specified period.
On the other hand, government policy support initially rose slightly before experiencing more significant increases in the later years. In the first half of the period, where growth was marginal, the policy intensity index was relatively low, standing at just 10%. In the following years, this figure improved gradually, remaining at 20% between 2013 and 2014, and then reaching 30% from 2014 to 2015. For the remaining part of the period, which saw noticeable growth, the intensity of government policy support was documented to be at 40% between 2015 and 2016. After climbing steeply over three years, the statistic ultimately reached its highest point, exceeding 80% by the end of the specified timeframe.