The pie charts illustrate the distribution of energy capacity in gigawatts (GW) in 2015 and provide projections for 2040. Overall, the total energy capacity is expected to rise from 6.688 GW in 2015 to 11.678 GW by 2040. A notable shift in the energy mix is anticipated, with a move away from fossil fuels towards renewable sources, particularly solar and wind power.
In 2015, fossil fuels accounted for the vast majority of energy capacity at 64%. Other renewables followed at 23%, while nuclear, wind, and solar energy made up smaller portions of 6%, 5%, and 2% respectively. By 2040, the proportion of fossil fuels is predicted to drop to 44%. Despite this decrease, it remains the largest single category.
Conversely, the share of solar energy is forecast to experience the most dramatic growth, surging from 2% in 2015 to 18% in 2040. Similarly, wind energy capacity is expected to more than double, rising from 5% to 12%. Meanwhile, the contribution of other renewables is projected to decline slightly to 21%, and nuclear energy is expected to see a marginal decrease to 5% of the total capacity.