There's a number that tends to stop conversations cold when it comes up in clean-energy policy discussions: 80. That's roughly the percentage of global solar panel manufacturing capacity that currently sits inside China. For lithium-ion battery cells, the figure is similarly uncomfortable for Western planners, hovering around 75 to 80 percent depending on the segment. For processed lithium, cobalt refining, and rare earth elements, China's share of global capacity frequently exceeds 60 percent. Put those numbers together and you get a picture of extraordinary concentration, a single country positioned at the chokepoint of nearly every technology the world is betting on to decarbonize.
This isn't a new story, exactly. Analysts have been flagging China's manufacturing dominance in clean energy for years. What's new is the urgency. Clean-energy deployment is no longer a future aspiration; it's happening now at enormous scale. The International Energy Agency projected in its most recent World Energy Outlook that solar PV additions alone would hit record levels through the mid-2020s. Wind, battery storage, and EV sales are following similar trajectories. All of that growth is running directly into a supply chain that most Western governments didn't build, didn't prioritize, and are now scrambling to influence.
How China Got Here
The short version is that China made a deliberate, sustained, decades-long industrial bet and won it. Starting in the early 2000s, Beijing poured subsidies into solar manufacturing at a scale that Western competitors simply couldn't match. Companies like Longi Green Energy and Jinko Solar became household names in the industry while European and American solar manufacturers largely collapsed or retreated to niche markets. The economics were brutal and intentional.
Batteries followed a similar arc. China built out its EV supply chain from the mine to the showroom, anchored by CATL, which now holds somewhere around 37 percent of global EV battery market share by itself. BYD is manufacturing both the cells and the vehicles. The vertical integration is deep. When an American or European automaker talks about securing battery supply, they're almost always negotiating with Chinese companies or with suppliers that depend heavily on Chinese-processed materials.
The processing piece is where things get particularly thorny. Even when raw materials are mined elsewhere, such as lithium in Australia or cobalt in the Democratic Republic of Congo, they frequently travel to China for processing before entering the battery supply chain. That middle step is where China's leverage is most concentrated and hardest to replicate quickly. Building a processing facility takes years; building an industry with the scale and efficiency China has developed takes decades.
The Policy Response Has Been Loud. The Results Are Still Patchy.
The U.S. Inflation Reduction Act, passed in 2022, was explicitly designed to pull manufacturing back to American soil through tax incentives tied to domestic content requirements. The European Union launched its own Critical Raw Materials Act and Net-Zero Industry Act with similar goals. South Korea, Japan, India, and Canada have all announced various forms of industrial policy aimed at building out domestic clean-energy manufacturing capacity.
Some of this is working. Battery gigafactories are going up across the American South, anchored by investments from Panasonic, Samsung SDI, LG Energy Solution, and domestic players. Ford, GM, and Stellantis have announced domestic battery joint ventures. In Europe, Northvolt was supposed to be the homegrown answer before the company hit serious financial turbulence in late 2024, filing for bankruptcy protection and raising uncomfortable questions about whether Western battery manufacturing can actually compete on cost.
That Northvolt situation is instructive. The Swedish company had real technology, real capital, and genuine political support from across Europe. It still couldn't get costs low enough fast enough. Chinese manufacturers benefit from cheaper labor, lower energy costs, an established supplier base, and years of learning-curve advantages. Closing that gap through policy incentives is possible, but it requires sustained commitment over years, not electoral cycles.
Trade Friction Is Accelerating, Not Solving, the Problem
The other major policy tool governments have reached for is tariffs. The Biden administration maintained and expanded Trump-era tariffs on Chinese solar cells and panels, then added new levies on Chinese EVs, batteries, and battery components in 2024. The EU launched its own anti-subsidy investigation into Chinese EVs and eventually imposed additional duties. China has responded with export controls on key materials, including gallium, germanium, and graphite, all of which matter for battery and semiconductor manufacturing.
What this trade friction has not done is reduce global dependence on Chinese manufacturing in any near-term meaningful way. It's mostly made clean-energy equipment more expensive in markets that have imposed tariffs, while Chinese manufacturers have started routing production through third countries like Vietnam, Malaysia, and Mexico to sidestep duties. The supply chain hasn't been severed; it's gotten more complicated and more expensive.
There's a real tension embedded in the tariff approach that policymakers don't always acknowledge publicly. Tariffs on Chinese solar panels raise the cost of solar deployment in the countries imposing them. That slows the energy transition. Accepting cheap Chinese solar accelerates deployment but entrenches dependency. Neither option is clean, and the tradeoffs are genuinely hard.
What Resilience Actually Requires
Diversification is the word everyone reaches for, but meaningful diversification in energy supply chains requires specificity about what you're actually trying to achieve. A few distinct goals often get bundled together:
- Geopolitical risk reduction: Ensuring that a conflict, trade dispute, or export restriction can't halt clean-energy deployment.
- Economic competitiveness: Building domestic industries that can employ workers and generate economic value locally.
- Speed of deployment: Getting enough panels, batteries, and turbines installed fast enough to matter for climate targets.
These goals sometimes point in different directions. The fastest path to deployment today runs through Chinese manufacturing. The most resilient path long-term involves building alternative capacity elsewhere. The most economically appealing path for domestic politicians involves mandating local content that raises costs and slows projects. Governments are trying to serve all three masters simultaneously, and the resulting policy is frequently inconsistent.
India is worth watching as a case study in trying to thread this needle. The country is the third-largest solar market in the world and has imposed import duties on Chinese solar equipment to stimulate domestic manufacturing. Indian capacity is growing, led by companies like Adani Green and Waaree Energies. But Indian solar manufacturing is still a fraction of Chinese capacity, and India continues to source Chinese equipment through various channels. The domestic industry is real but not yet competitive enough to fully substitute.
The Battery Chemistry Shift Could Redistribute Power
One factor that could genuinely reshape the supply chain dynamics over the next five to ten years is the rise of alternative battery chemistries, particularly sodium-ion batteries. Sodium-ion doesn't require lithium, cobalt, or nickel in the same way that conventional lithium-ion cells do. The materials are abundant almost everywhere. Chinese companies, particularly CATL, are actually leading sodium-ion development too, which cuts against the narrative that this is purely a Western opportunity. Still, a world where battery chemistry relies on sodium rather than lithium changes the raw materials map in ways that could benefit countries currently shut out of the value chain.
Solid-state batteries are another technology that could alter the picture, though commercial scale is further out. American and Japanese companies, including Toyota, QuantumScape, and Solid Power, have invested heavily here. If solid-state delivers on its promises at scale, it might give non-Chinese manufacturers a chance to establish positions in a new battery market rather than fighting uphill in an established one.
Why This Matters Right Now
The decisions being made in 2024 and 2025 about supply chain investment, trade policy, and industrial strategy will lock in dependencies for a decade or more. Factories don't get built and then torn down. Supply relationships that get established tend to persist. Workforce skills and manufacturing knowledge concentrate in places where the industry runs, and they take years to rebuild elsewhere.
For consumers, the immediate implication is cost. Trade restrictions on Chinese clean-energy products push prices higher. Onshoring mandates add cost. Those price increases show up in electricity bills, EV sticker prices, and the economics of home solar installations. The clean-energy transition was supposed to get cheaper over time as technology matured; supply chain politics is one of the main forces working against that trend right now.
For the broader energy transition, the stakes are even higher. Climate targets depend on deployment moving fast. Deployment depends on supply chains functioning at scale and reasonable cost. A supply chain that's politically fraught, subject to sudden tariff changes, or vulnerable to export controls is a supply chain that adds uncertainty to every project planning process. Developers, utilities, and investors price that uncertainty into their decisions.
China didn't stumble into controlling the clean-energy supply chain. It was a strategic choice, executed over decades, with enormous government commitment. Competing with that requires a similarly serious, sustained response from governments that have historically been far more ambivalent about industrial policy. Whether that commitment materializes at the necessary scale, in enough countries, fast enough to matter, is genuinely the defining question of the energy transition right now.