Something happened in 2026 that energy historians will write about for generations: for the first time since the industrial revolution, renewable energy surpassed coal as the world's largest source of electricity. The International Energy Agency has confirmed the milestone — and the numbers are extraordinary.
According to the IEA's *Electricity 2026* report, renewables — led by solar and wind — now account for **36% of global electricity generation**. Coal has fallen to just **32%**, its lowest share since the 1800s. The energy mix that powered the 20th century has been overtaken by the one that will power the 21st.
**How We Got Here: The Solar and Wind Explosion**
The story behind this milestone is one of technological progress moving faster than almost anyone predicted.
Just fifteen years ago, solar power was an expensive curiosity. The idea that solar and wind could together overtake coal within a decade and a half would have seemed wildly optimistic.
What changed everything was cost. The price of solar photovoltaic panels fell by more than 90% over the past decade. Wind turbine costs declined similarly. Battery storage — critical for managing the intermittent nature of sun and wind — dropped to less than a third of its price from just three years ago, reaching $117 per kilowatt-hour.
The result: solar and wind are now the cheapest forms of new electricity generation almost everywhere on Earth. Building a new solar farm is cheaper than running an existing coal plant in most countries. The economics have become irresistible.
**The Numbers Behind the Milestone**
- Combined solar and wind generation exceeded **4,000 terawatt-hours (TWh)** in 2024, projected to surpass 6,000 TWh by end of 2026 - Solar and wind now meet **over 90% of the increase in global electricity demand** — almost all new power needs are being met by clean sources - Global energy storage installations exceeded **100 GW** for the first time in 2026 - China is installing a projected **390 GW of solar PV** and 86 GW of wind in 2026 alone - In the United States, solar, wind, and battery storage account for **virtually all net new generating capacity** in 2026, up 62% on 2025
**Coal's Long Decline**
Coal's fall is as significant as renewables' rise. The fuel that powered the industrial revolution is now in structural, irreversible decline as an electricity source.
The IEA projects coal's share of global electricity to continue falling through the decade. Coal plants that took decades and billions of dollars to build are being retired early — not because of regulation alone, but because they simply cannot compete on cost with solar and wind.
**What This Means for the Climate**
The electricity sector is the largest single source of global carbon dioxide emissions. A shift of this magnitude in how the world generates power is one of the most important climate developments of the decade.
While the world still has a long way to go to meet Paris Agreement targets, the fundamental direction is now set. The energy transition is not a future aspiration. It is happening, at scale, today.
'This is a historic turning point,' the IEA said in its report. 'Renewable energy is no longer the alternative — it is the mainstream.'
The age of coal-dominated electricity is over. What took 200 years to build is being dismantled in less than 20. And in its place, something genuinely new is rising. ☀️
*Sources: IEA Electricity 2026 Report (iea.org) · Carbon Brief · BloombergNEF · EIA · Electrek*
