
The bar chart compares the proportion of energy derived from renewable sources in four European countries in 2015 and 2025.
Overall, the renewable share rose in every country over the decade. Sweden held the highest figure at both dates, while the most rapid growth occurred in Poland, which had started from the lowest base.
Sweden led the field throughout: renewables already supplied just over half of its energy (52%) in 2015, and this share climbed to 68% ten years later. Germany followed a similar path at a lower level, rising from 30% to 46%—almost half of its total consumption.
The remaining two countries lagged behind but narrowed the gap. France's share increased steadily from 18% to 28%, a rise of ten percentage points. The most striking change, however, was seen in Poland, where the figure more than doubled, jumping from a mere 12% to 26%, so that by 2025 it stood roughly on a par with France, having been only two-thirds of the French level a decade earlier.