For the first time in recorded energy history, the entire growth in global electricity demand was met by renewable energy. That is the headline finding from the Energy Institute's authoritative annual review of global power systems, published this week — and it is being called a genuine turning point for clean energy.
Global electricity consumption rose by 3 percent in 2025. Every fraction of that increase was absorbed by renewables — primarily solar and wind — with no net contribution from fossil fuels needed to keep up with growing demand. The finding represents a milestone that energy analysts have long anticipated but whose arrival is no less remarkable for being expected.
"We see encouraging substitution of fossil fuels in power, yet global emissions continue to rise," said Dr. Nick Wayth, CEO of the Energy Institute. "These findings underline the urgency of accelerating efficiency, electrification and investment in clean technologies."
Solar's Extraordinary Run
The clearest driver of the shift is solar power. Photovoltaic capacity expanded by 30 percent in 2025, continuing a decade-long run of growth that has repeatedly exceeded forecasts. The speed of solar's rise has made it the fastest-growing energy source in human history — and it shows little sign of slowing down.
Equally significant was a 66 percent rise in battery storage capacity. Batteries are the technology that transforms intermittent solar and wind power into reliable, dispatchable electricity — the kind that can be delivered when the sun isn't shining or the wind isn't blowing. The surge in battery deployment means the grid can now store clean energy at a scale that was inconceivable just a few years ago.
China led the way, adding more wind and solar capacity than the rest of the world combined in 2025. India also saw notable progress, with coal, oil, and gas generation all declining while renewable output rose nearly 24 percent.
The Road Still Ahead
The news is not uniformly positive. Global emissions still rose overall by 1.1 percent in 2025, driven primarily by an increase in coal burning and oil production in the United States, where emissions rose four times faster than China's. The gap between energy transition progress in different parts of the world is widening, not narrowing.
The Energy Institute's review notes a deepening regional disparity: while Europe and Asia are accelerating their clean energy transitions, some economies are moving in the opposite direction, investing in fossil fuel infrastructure that could lock in emissions for decades.
Net-zero by 2050 — the benchmark scientists say is necessary to limit warming to 1.5°C — would require far steeper cuts than current trends suggest. Meeting demand with renewables is one thing; shrinking the overall carbon footprint of existing power systems is another.
A Meaningful Milestone
None of that diminishes what the 2025 data represents. A few years ago, the idea that all new electricity demand could be met by clean energy seemed distant. Today, it is happening. The economics of solar and wind have collapsed so dramatically — both technologies are now the cheapest sources of new electricity in most of the world — that the transition has taken on a momentum of its own.
The battery number may be the most significant of all. Energy storage has long been described as the missing piece of the renewable puzzle. With capacity rising 66 percent in a single year, that piece is arriving faster than almost anyone predicted. The tipping point the Energy Institute describes is not just a one-year result. It is a signal of where the global energy system is heading.
