The 2025 Statistical Review of World Energy underscores a sobering reality: while renewable energy is expanding rapidly, it is still insufficient to displace fossil fuels and meet surging global energy demand. Solar and wind power saw record growth in 2024, especially in non-OECD nations like China and India, but these gains were overshadowed by the larger role fossil fuels continue to play. As a result, carbon emissions continued to rise despite unprecedented renewable deployment.
In 2023, worldwide energy consumption reached 580 exajoules (EJ), with renewables providing just 29.97 EJ, or 5.2% of the total. By 2024, renewables increased to 32.74 EJ, nudging their share to 5.5%. Of the 11.9 EJ increase in total demand, renewables accounted for only 2.7 EJ—about 23%—while fossil fuels, particularly natural gas, supplied most of the rest. This imbalance explains why the energy transition has not yet curbed emissions.
There were regional bright spots. Countries like Argentina, the Netherlands, Poland, New Zealand, the Czech Republic, the UK, and Japan saw renewable growth outpace fossil fuels in 2024. In the U.S., renewables met 67% of new demand—well above the global average—but fossil fuel use still rose. Meanwhile, China and India remain major drivers of coal and gas consumption, reinforcing their dependence on carbon-intensive sources.
Solar energy stands out as the fastest-growing major source over the past decade, with a compound annual growth rate (CAGR) of 25.8%. In 2024, solar generation hit 7.7 EJ globally, up 27.5% from 2023. Non-OECD nations now account for 57% of solar output, with China alone producing 3.0 EJ—nearly 40% of the global total. India’s output surged from 0.02 EJ in 2014 to 0.5 EJ in 2024, driven by rooftop initiatives and grid expansion. The U.S. generated 1.1 EJ, or 14.6% of the total, but its 10-year CAGR of 24.4% trails the global rate.
Wind power reached a record 9.0 EJ in 2024, though its decade-long CAGR of 7.2% lags behind solar’s meteoric rise. China leads global wind production at 3.6 EJ, slightly exceeding the combined output of the U.S. and EU. The U.S. generated nearly 1.7 EJ—about 10% of its electricity—but faces permitting and grid bottlenecks. Europe remains a wind stronghold, aided by decades of offshore infrastructure investment.
Hydropower, still the largest single renewable source at 16.0 EJ in 2024, is stagnating with just 1.4% average annual growth. Geographic limits, environmental issues, and diminishing returns are slowing expansion. Countries like Norway, Sweden, Brazil, and Canada rely heavily on hydro, but solar is gaining ground in places like Brazil’s agricultural regions, while Canada trails in wind and solar adoption.
A key shift is the reversal of leadership between OECD and non-OECD countries. Non-OECD nations now produce more non-hydro renewable electricity and are growing faster, fueled by falling costs, energy security needs, job creation, and grid improvements.
In sum, renewable energy is no longer niche but remains unable to transform the global energy landscape at the pace required. Solar is surging, wind is steady, hydropower is stagnant, and fossil fuels still dominate the global energy mix. While innovation and cost declines inspire optimism, the race against rising global energy demand is far from won.