Solar will become the world's primary power source by 2032
Solar and wind will displace coal as leading energy sources by 2032-2034, supported by massive battery storage expansion from 220 GW in 2025 to 2000 GW by 2035. Global energy transition investments must increase 34% to $3.1 trillion annually through 2030, with China dominating battery deployment but India and Europe driving demand from 2030s onward.
- Solar becomes largest global power source in 2032; wind follows in 2034
- Battery storage capacity projected to grow from 220 GW (2025) to 2,000 GW (2035)
- Annual energy transition investment must reach $3.1 trillion by 2030, up 34% from 2025
- Planet on track for 2.4°C warming by 2050 under current policies, missing Paris targets
BloombergNEF analysis projects solar energy will become the world's primary power source by 2032, driven by rising electricity demand from data centers, population growth, and electric vehicles.
The world is about to flip its energy diet. Within six years, according to new analysis from Bloomberg NEF released this week, solar power will become the single largest source of electricity on the planet. Wind will follow two years later. Coal, which has dominated global power generation for more than a century, will be shoved aside.
This shift is not some distant theoretical possibility. It is already underway, accelerated by forces that touch nearly every corner of modern life. Data centers—the vast server farms that power artificial intelligence, cloud computing, and streaming—are consuming electricity at rates that would have seemed impossible a decade ago. Populations are growing. Incomes are rising. Hundreds of millions of people are buying electric vehicles, all of which need to be charged. These currents are pulling electricity demand upward almost everywhere on Earth, and that demand is reshaping what kind of power plants get built.
The analysis rests on two scenarios. The first, called the Economic Transition Scenario, models what is most likely to happen based on current economic forces and existing climate policies—the baseline case, in other words. The second, the Net Zero Scenario, assumes governments actually prioritize the climate commitments they made in Paris and act accordingly. Under the more modest first scenario, solar takes the crown in 2032 and wind in 2034. Both displace coal from its long reign at the top.
What makes this possible is not just panels on roofs and turbines in fields. It is batteries. The world will need to store electricity when the sun is not shining and the wind is not blowing. Bloomberg NEF has nearly tripled its projection for global battery storage capacity over the next decade, from 220 gigawatts in 2025 to 2,000 gigawatts by 2035. China will build most of them, but India and Europe are expected to drive enormous demand starting in the 2030s. This infrastructure does not exist yet. It will have to be built.
The money required is staggering. Under the baseline scenario, annual investment in the energy transition will need to climb 34 percent, from $2.3 trillion in 2025 to an average of $3.1 trillion per year through the end of this decade. The Net Zero path demands it double to $4.8 trillion annually. These are not abstract figures. They represent steel mills, manufacturing plants, transmission lines, and labor forces that do not yet exist at the required scale.
Yet even as renewables surge, the world is failing to meet its most ambitious climate targets. The analysis shows the planet is on track to warm 2.4 degrees Celsius by 2050 under current policies—well above the 1.5-degree ceiling set in Paris. China, the world's largest emitter, will see its emissions peak this year and then decline. But emissions from India, Southeast Asia, and Latin America will keep climbing. Even if the world somehow achieves net-zero emissions by 2050, warming by the end of the century is likely to exceed 1.8 degrees, higher than projections made just two years ago.
Oil demand will peak around 2029, driven by the shift to electric vehicles. Natural gas, by contrast, will keep growing and will become the primary energy source in the 2040s, replacing oil. This is the paradox at the heart of the transition: renewables are winning, but fossil fuels are not disappearing as quickly as the climate crisis demands. Despite nearly $500 billion in capital invested in cutting-edge climate technologies—carbon removal, advanced batteries, geothermal energy—none has yet reached commercial scale. The future is being built in real time, but it is not moving fast enough.
Notable Quotes
The successive shocks to the energy market could favor the energy transition, as some countries seek to break free from imported fossil fuels and strengthen their energy security.— Bloomberg NEF analysts
The Hearth Conversation Another angle on the story
Why does solar specifically win out over wind, if both are growing?
It comes down to economics and geography. Solar can be deployed almost anywhere—rooftops, deserts, farmland. Wind needs specific conditions. As costs have fallen, solar has become the cheaper option in most places, so more of it gets built. The math is simple.
You mention data centers three times in the source. Is that really the main driver here?
It's one of several, but yes, it matters more than people realize. AI training and inference consume enormous amounts of electricity. That demand is new and accelerating. Add population growth, rising incomes, and electric vehicles, and you have a perfect storm of electricity hunger.
The battery storage numbers seem almost impossible. Two thousand gigawatts by 2035?
It does sound abstract until you think about what it means. That's the infrastructure required to make a renewable grid actually work. Without it, solar and wind are just intermittent sources. The batteries are the real story.
But the piece ends on a dark note—we're still missing climate targets even as renewables surge.
That's the tension. The energy transition is real and accelerating. But it's not fast enough to prevent significant warming. We're building a cleaner grid while the planet keeps warming. Both things are true at once.
What happens to the people working in coal and oil?
The source doesn't address that directly, but it's the question underneath everything. Millions of jobs exist in fossil fuels. The transition creates new jobs, but not always in the same places or at the same wages. That's the human cost that numbers like $3.1 trillion don't capture.
Is there any scenario where we actually hit the 1.5-degree target?
Not according to this analysis. Even the Net Zero Scenario—the one where governments actually do what they promised—still results in warming above 1.8 degrees by century's end. The window for 1.5 has essentially closed.