Until recently, China’s green energy push was usually explained through two familiar lenses: economic transformation and environmental improvement. The first emphasized industrial policy defined by Beijing’s drive to dominate the technologies of the future, create new engines of growth, and use what it calls “new productive forces” to push the economy beyond the middle-income trap.
The second stressed cleaner air, lower emissions, and the political need to show that China can modernize without repeating the worst environmental costs of earlier industrialization.
Both interpretations remain true. But events have forced a pivot.
The Hormuz effect
The Iran war, and with it the first time Tehran used the vulnerability of the Strait of Hormuz as a strategic weapon, has sharpened a third logic behind China’s energy transition: strategic resilience. In fact, the war turned a long-term strategic theory into an acute, operational reality.
Beijing has long understood that heavy dependence on imported oil and natural gas is a national-security liability. This awareness led to China building up one of the world’s largest oil reserves. Iran taking the Hormuz hostage made that danger more concrete.
It brought home the fear that even an economy as vast as China’s can be exposed by a narrow maritime chokepoint controlled by a strategic partner thousands of miles away. In essence, Iran’s willingness to threaten the strait underscored for Beijing why energy security goes beyond economics and environmental goals.
Going forward, China’s green energy strategy should increasingly be read not only as climate policy, and not only as industrial policy, but as a hedge against geopolitical shock. Every electric vehicle on the road, every increment of renewable generation, every improvement in storage, grid flexibility, and electrified transport reduces vulnerability to imported oil disruptions.
This does not free China from hydrocarbons in the short or medium term. It does, however, give Beijing some room to maneuver in a crisis.
By comparison, countries such as India, Japan, and South Korea entered the Hormuz shock with far less strategic cushioning than China. All four are exposed to disruptions in Gulf energy flows, but they are not equally prepared to absorb them.
After China’s energy crises, first in 2021 when homes and industry in 20 provinces suffered electric shortages and then rolling blackouts and power rationing occurred in the summer of 2022, China intensified its effort to build multiple energy options.
Beijing spent years building a broader resilience architecture: very large oil inventories, expanding storage capacity, record domestic crude production, a vast coal backstop, state-managed fuel pricing, and a much more advanced scale of electrification through hydropower, EVs, batteries, solar, and wind.
Japan, South Korea, and India each have important buffers, but they remain more vulnerable in different ways. Japan’s reserves are substantial, but Tokyo has already had to tap stocks and warn about the strain caused by rerouted cargoes.
South Korea’s reserves are smaller, and its exposure to imported energy remains acute. India’s cushion is thinner still relative to its scale. China’s position is hardly comfortable, but it is more layered and therefore more shock-resistant.
The Solar conundrum
The contrast is also striking in renewable energy and electrification. China’s scale in solar and wind is unmatched, and that scale gives Beijing strategic options in an energy shock that other major Indo-Pacific economies do not yet have.
But here the story becomes more complicated. The same solar sector that has become strategically valuable to Beijing is now under severe commercial strain.
China’s solar industry is facing overcapacity, low margins, brutal price competition, and weakening domestic demand. Manufacturing capacity has surged far beyond what the market can absorb profitably.
Technological improvements are quickly copied and commoditized. Prices have collapsed. Profitability has been squeezed across the sector. In other words, the strategic importance of solar is rising at the same moment the economics of the industry are deteriorating.
This means that Beijing’s commitment to solar and electrification should no longer be seen only as a bet on commercial success. It may increasingly become a strategic necessity, even if the sector itself is unhealthy.
This is also why the crisis should not be read as proof that China has solved the renewable-energy problem. It has not. A central unresolved issue remains system integration. The challenge is not simply building more solar panels.
It is making intermittent renewables strategically reliable at scale. Storage, transmission, grid flexibility, and balancing capacity remain the real bottlenecks. Solar may reduce oil dependence, but without a system that can absorb and dispatch that power reliably, it cannot fully substitute for the security that hydrocarbons still provide.
And then there was coal
That is where coal comes back in. Coal has not become irrelevant to China’s resilience model simply because renewables are expanding. But it would be misleading to say coal is straightforwardly replacing oil because solar cannot cover nighttime deficits. The more accurate formulation is that coal remains a strategic backstop in a hybrid system whose flexibility problem is not yet solved. Beijing is retaining coal because it does not yet trust renewables, storage, and grids to provide full security on their own.
That makes China’s energy transition less a clean decarbonization story than a layered security architecture. Renewables, batteries, EVs, and electrified transport reduce import vulnerability. Strategic reserves buy time. Domestic crude production provides insurance.
Coal supplies firm capacity and flexibility when the system is strained. Price controls help manage domestic instability. The result is not a neat green transition. It is a hybrid resilience model in which old and new energy serve different strategic functions.
Mix and match
The lesson extends beyond China. Many countries will want to increase renewables not only for climate or industrial reasons, but to reduce dependence on hydrocarbons and vulnerable chokepoints. Yet China’s experience suggests that the hard part begins after the panels are installed.
A country can expand solar very quickly and still face low margins, technological commoditization, storage bottlenecks, grid congestion, and continued dependence on fossil-fuel backstops.
The strategic push toward renewables may accelerate, but it will not automatically produce energy security unless the broader system evolves with it.
That is why India, Japan, South Korea, and others should study this moment closely. The point is not that they should copy China’s energy model wholesale. They should not. The point is that the Iran war is clarifying a broader truth: in a world of sanctions, wars, chokepoints, and contested sea lanes, renewables are increasingly part of national resilience. But renewables alone are not enough. Strategic stocks, maritime security, storage, grid flexibility, and fallback capacity all belong in the same conversation.
For Israel, this shift is also worth watching closely. The military and political drama surrounding Iran naturally draws attention to immediate operational questions. Yet one of the deeper outcomes of the war may lie farther east, in how Beijing recalibrates its energy-security doctrine.
China may continue publicly blaming the United States and Israel for instability, but inside the system the lesson will be harder-edged: dependence on distant hydrocarbons routed through vulnerable chokepoints is dangerous, and resilience requires structural adjustment.
The Iran war is making China’s green energy strategy more strategic at precisely the moment China’s solar sector is hitting the limits of overcapacity, weak margins, and incomplete system integration.
That contradiction is not unique to China. It is likely to be faced by many countries that seek to expand renewables in order to reduce dependence on hydrocarbons. The real strategic challenge is not simply to install more green capacity, but to build an energy system resilient enough to function under geopolitical stress.
The writer is the founder and executive director of the SIGNAL Group.