In an era marked by heightened environmental consciousness and urgent calls for sustainable energy solutions, recent findings from the energy think tank Ember reveal a pivotal moment in global electricity generation. For the first time, low-emission energy sources encompassed all new electricity demand, with solar and wind power leading the charge. This shift not only reflects a growing commitment to renewable energy but also highlights the necessity of transitioning away from fossil fuels to secure a sustainable future for generations to come.
According to a recent report by the energy think tank Ember, for the first time in history, low-emissions energy sources accounted for all new global electricity demand last year, indicating a significant turning point in the global energy landscape. As a result, fossil fuels were unable to expand their market presence, suggesting a notable shift towards cleaner energy solutions.
Solar power emerged as the frontrunner, meeting an impressive three-quarters of the 849 terawatt-hours (TWh) in new demand, while wind power contributed nearly all remaining demand. Concurrently, low-emissions sources—including biofuels, hydroelectricity, and nuclear power—achieved a record 42.6% of the total 31,779 TWh consumed worldwide in 2025, underscoring the advancements in renewable energy technologies.
Ember’s analysis signifies a crucial moment for the energy sector, as it posits that 2025 represents a structural change in electricity generation dynamics. According to Ember’s senior energy and climate data analyst, Nicolas Fulghum, the high level of clean power deployment is now adequate to consistently meet growing electricity demand. In the next few years, this trend is expected to lead to a decline in fossil fuel generation, with projections indicating that by around 2035, fossil fuels may lose 10-20% of their market share to clean energy alternatives.
However, not all analysts are convinced that this trend is sustainable. Rahmat Poudineh, who oversees electricity research at the Oxford Institute for Energy Studies (OIES), argues that while low-emission sources meeting average demand is promising, more rigorous testing is needed to establish the reliability of these resources during extreme weather conditions, which place additional strain on energy systems.
Despite these debates, the data show that solar and wind energy witnessed unprecedented growth, particularly within the European context, where renewable energy production reached 71% of electricity generation last year. The ongoing impacts of global events, like Russia’s invasion of Ukraine, have precipitated an urgent acceleration of renewable energy adoption, illustrating Europe’s resilience and proactive approach to energy independence.
Last year marked a significant milestone as both China and India—two major global emitters—began reducing their reliance on fossil fuels for electricity generation, a coordinated effort celebrated as a notable achievement in the fight against climate change.
Amidst these changes, the International Energy Agency (IEA) observed a slowdown in oil and gas demand compared to previous years. Analysts speculate that geopolitical tensions could further inhibit fossil fuel demand, reinforcing the need for global stakeholders to prioritize the transition to clean energy solutions.
While the advancements in renewable energy remain impressive, Ember asserts that further efforts are crucial to meet climate goals, particularly in limiting global warming to 1.5 degrees Celsius as outlined by the Paris Agreement. The IEA indicates that a 25% reduction in fossil-fuel-powered electricity by 2030 is imperative to achieve these targets, contrasting with Ember’s more conservative predictions of a 10-20% decline by 2035.
As the world progresses in its energy transition, Ember’s findings suggest that global emissions per average kilowatt hour have significantly decreased, from 543 grams of CO2-equivalent a decade ago to 458 grams in 2025. The IEA believes this figure could fall to around 400 grams in the near future, highlighting a positive trend towards decoupling economic growth from carbon emissions. Without the growth in solar and wind energy, global CO2 emissions would have reached an alarming 42.4 billion tonnes—a stark reminder of the essential role renewables play in mitigating climate change.
As we look towards the future, it is evident that the shift towards clean energy is not merely a trend but a necessary evolution that will shape our world for years to come.
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