A profound transformation is underway in the global energy sector, as renewable sources have surpassed a long-standing benchmark, marking what analysts describe as a pivotal moment in the fight against climate change.
According to the latest data from leading energy think tank Ember, more than one-third of the world's electricity in 2025 was generated from renewable sources. In contrast, coal's share fell below one-third of total global power generation for the first time in modern history. The development signals not just a numerical milestone, but a structural shift in how the world produces and consumes energy.
The report highlights that this transition is being driven primarily by the rapid expansion of solar and wind power. Together, these two sources accounted for nearly 99 percent of the increase in global electricity demand in 2025. This means that despite rising energy consumption worldwide, the additional demand was almost entirely met without increasing reliance on fossil fuels.
Experts attribute this progress to sustained investment in renewable energy over recent years. As a result, solar and wind technologies have become increasingly competitive with conventional fossil fuels, both in cost and scalability. Analysts suggest that the era of coal's dominance in global electricity generation is now coming to an end. Solar energy, in particular, has emerged as the leading force behind this transition. In 2025 alone, global solar power generation increased by approximately 636 terawatt-hours-marking the largest annual growth ever recorded for any single energy source. Solar output rose by nearly 30 percent compared to the previous year and, remarkably, accounted for about 75 percent of the world's new electricity demand.
The sharp rise in solar adoption has been supported by a dramatic decline in costs. Over the past decade, the price of solar modules has dropped by more than 80 percent, making solar power the most affordable option for new electricity generation in many parts of the world.
Wind energy has also played a significant role, complementing solar power and further reducing the need for fossil fuel-based electricity. Together, these two renewable sources have brought the growth in fossil fuel demand for power generation close to zero.
The International Energy Agency (IEA) reported that global carbon dioxide emissions from the energy sector grew by just 0.4 percent in 2025-a notably slower rate compared to previous years. The agency identified the increased use of solar energy in electricity generation as a key factor behind this slowdown.
Asia's major economies, particularly China and India, have emerged as central drivers of the renewable energy boom. Ember data shows that China alone contributed approximately 55 percent of global solar power growth, while India also significantly expanded its renewable capacity. The United States accounted for around 14 percent of global solar growth.
Notably, both China and India recorded simultaneous declines in coal-based electricity generation in 2025-an uncommon occurrence in recent years. Given that these two countries together account for roughly one-fifth of global electricity demand, their shift towards renewables is having a far-reaching impact on the global energy landscape.
Further evidence of this accelerating transition comes from the International Renewable Energy Agency (IRENA), which reported that the world added a record 692 gigawatts of renewable energy capacity in 2025-an increase of 15.5 percent compared to the previous year. Solar power dominated this expansion, contributing 511 gigawatts, or about 75 percent of the total increase, followed by wind energy at 159 gigawatts.
Combined, solar and wind accounted for an overwhelming 96.8 percent of net renewable capacity additions, underscoring their central role in the global energy transition.
Ember's analysis also suggests that without the rapid growth of solar and wind energy, carbon emissions from the power sector in 2025 would have been 236 million tonnes higher. This highlights the dual role of renewables in not only meeting energy demand but also mitigating environmental pollution.
Geopolitical factors are further accelerating the shift. Ongoing conflicts and instability in the Middle East have prompted many countries to reassess their energy strategies. Volatility in global fossil fuel markets and prices has driven nations to prioritize domestic and renewable energy sources, both to enhance energy security and to reduce carbon emissions.
As the pressures of climate change intensify and global energy demand continues to rise, investment in renewable energy is expected to grow even further. The latest data suggests that the world is not only transitioning away from fossil fuels but is doing so at an increasingly rapid pace-marking a decisive step toward a cleaner and more sustainable energy future.
