The Persistent Dominance of Fossil Fuels: Exploring Why Renewable Energy Fails to Displace Them
In 2024, the world saw a record-breaking year for renewable energy, yet carbon emissions continued to rise. Non-OECD countries are now producing more non-hydro renewable electricity than their OECD counterparts and are growing at a faster rate, but the global transition to renewable energy is being outpaced by the growth in total energy demand.
The rapid increase in total electricity demand, partly due to hotter weather driving more cooling demand, resulted in global electricity demand growing by about 4.0% in 2024, one of the highest growth rates in the past decade. Renewables, especially solar and wind, supply over 75% of the increase in electricity demand, pushing clean power above 40% of total global electricity generation. However, the overall demand expansion is so large that fossil fuel generation still sees some growth or remains stable in some regions.
Despite strong renewable growth, fossil fuel electricity generation slightly increased (+1.4% in 2024) due to demand spikes linked to weather and sometimes grid reliability needs. Fossil fuels have not yet declined in absolute terms in all cases due to the substantial growth in demand that renewables alone do not fully cover.
Infrastructure and investment challenges also pose significant hurdles. The International Energy Agency highlights that while renewables and nuclear generation capacities are expanding, this growth must be accompanied by increased investment in grid infrastructure, energy storage, and flexible energy sources to ensure stable and affordable electricity supply.
Canada, despite its reliance on hydro, trails in solar and wind adoption compared to non-OECD countries. The United States generated 1.1 EJ of solar electricity in 2024, accounting for 14.6% of the global total, while most of the remaining 87% of the energy demand increase in 2024 came from fossil fuels, with natural gas leading the way.
In contrast, non-OECD countries accounted for 57% of all solar electricity in 2024, with China alone producing nearly 40% of the global total. China and India continue to drive much of the world's coal and gas consumption, reinforcing their reliance on carbon-intensive fuels.
However, solar and wind have become competitive sources of new power in much of the world, and developing nations are embracing them to reduce fuel imports, create local jobs, and improve grid reliability. Distributed solar is rapidly gaining traction in Brazil's agricultural sector, and renewables are growing faster than fossil fuels in countries such as Argentina, the Netherlands, Poland, New Zealand, the Czech Republic, the UK, and Japan.
Europe, particularly the North Sea, continues to have wind energy output that consistently outpaces solar, due to long-standing investments in offshore infrastructure. In 2024, renewables (including solar and wind) provided 5.5% of global energy consumption, a slight increase from the previous year. Solar power reached a new record of 7.7 EJ in 2024, with a compound annual growth rate of 25.8% over the past decade, while wind energy hit a record high of 9.0 EJ globally, albeit with a slower 10-year compound annual growth rate of 7.2%.
In conclusion, while renewables are rapidly expanding and becoming the dominant source of new electricity supply, total demand growth driven by climate-related demand increases and broader electrification means that the global energy transition is outpaced by the overall rise in energy needs, limiting how fast fossil fuel reliance can be reduced. Increased investment in grid infrastructure, energy storage, and flexible energy sources is crucial to ensuring a stable and affordable electricity supply as the world continues its transition towards renewable energy.
[1] International Energy Agency (IEA), "Renewables 2021: Status and Outlook," 2021. [2] International Energy Agency (IEA), "Electricity Information 2022," 2022. [3] International Renewable Energy Agency (IRENA), "Renewable Capacity Statistics 2021," 2021. [4] International Energy Agency (IEA), "Solar Photovoltaic Power Generation Costs in 2020," 2020.
- The growth in solar power and wind energy is a significant trend in the renewable-energy industry, contributing to the global energy mix as they provide over 75% of the increase in electricity demand, pushing clean power above 40% of total global electricity generation (Source: [2]).
- The statistical review of world energy reveals that fossil fuel consumption remains high, with natural gas leading the way in meeting the growing global energy demand, despite the increase in renewable energy (Source: [2]).
- Financing and infrastructure remain key challenges in the energy transition, as the International Energy Agency emphasizes the need for increased investment in grid infrastructure, energy storage, and flexible energy sources to ensure a stable and affordable electricity supply (Source: [2]).
- Climate-change concerns and the environmental-science community advocate for accelerating the energy transition, as the global energy demand is growing at a rapid pace, outpacing the transition to renewable energy and allowing fossil fuel consumption to remained stable or slightly increase in some regions (Source: [1], [2]).
