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Why China can't keep the lights on

Most observers assume China's renewable energy surge signals the imminent end of its coal era. Asianometry dismantles this assumption with a stark reality check: the absolute volume of coal burning is still rising, driven by physics, economics, and deep-seated inertia that no amount of solar panel installation can easily override.

The Coal Paradox

Asianometry begins by contextualizing China's energy hunger, noting that the nation has been the world's single largest energy consumer since 2011, with demand growing at an average of 4% annually since 1980. The author argues that while headlines focus on green transitions, the underlying infrastructure remains stubbornly fossil-fuel dependent. "China has the largest installation of renewable energy in the world," Asianometry writes, "but there is still a problem." This framing is crucial because it separates the narrative of capacity from the reality of reliability. The piece effectively highlights that while newly installed capacity is now 70% renewable, the sheer scale of growth means coal generation has actually increased by 41% in absolute terms between 2010 and 2019.

Why China can't keep the lights on

The author identifies four structural barriers preventing a faster exit from coal. First, technical competency gaps mean China's energy efficiency lags developed nations by roughly 10%. Second, the intermittency of wind and solar requires expensive battery storage and massive transmission upgrades. "Renewable energy is not as reliable as coal," Asianometry explains, pointing out that rivers run low and the sun sets, creating gaps that coal fills without hesitation. Third, the geography of resources is a logistical nightmare; nearly 70% of domestic coal comes from the remote north and west, while consumption centers are in the south and east. This necessitates a "billion dollar super grid" of high voltage direct current cables, adding significant cost to the final kilowatt.

The economics of coal power are quite good. Estimates from 2015 find that internal rates of return for a 600 megawatt coal fired power plant are far above financial benchmarks, reaching nearly 18% in Guangdong.

This economic argument is the piece's most compelling insight. It suggests that without a radical shift in pricing mechanisms or subsidies, market forces will naturally favor coal. Asianometry notes that the internal rate of return for coal plants can hit 18%, a figure that is difficult for investors to ignore. Critics might note that this analysis relies heavily on historical cost data and may underestimate the speed at which renewable storage costs are dropping globally. However, the author's point about the "marginal break even cost" of renewables being disadvantaged by transmission and storage expenses remains a formidable hurdle.

The Inertia of Industry

Beyond the physics and economics, the commentary digs into the bureaucratic and political inertia that locks the system in place. Energy providers in China are deeply local, with decades of experience and entrenched incentives that favor the status quo. "Government and economic inertia" is cited as the fourth and most significant reason for the continued reliance on coal. The central government struggles with a lack of transparency around generation costs, obscured by subsidies and bad data, leading to a cycle of over and under capacity in mining.

The supply chain dynamics further complicate the picture. Domestic coal is becoming more expensive due to stricter safety regulations and mine consolidation, while imported coal from places like Australia and Indonesia offers higher quality at lower prices. This created a precarious situation in the autumn of 2021, where a trade dispute with Australia, combined with a global manufacturing rebound, led to a coal shortage. "As coal prices rose, utilities, their cost dependent on the cost of their major input, fell into the red," Asianometry writes. This financial squeeze forced utilities to reduce utilization hours, triggering the very blackouts the system was designed to prevent.

The entire world relies on a single country to produce pretty much everything for them, China. And China in turn relies on million years old dead plant rocks to power this magnificent industrial machine.

This juxtaposition of global dependency and fragile domestic energy security is the piece's emotional core. The author argues that the manufacturing sector is extremely sensitive to outages, with historical data suggesting that blackouts can cost billions in lost output. The situation is exacerbated by climate change itself; rising temperatures are driving an exponential increase in cooling demand. In Guangdong, energy consumption for air conditioning has risen tenfold since 2000. "For every 1° C increase in the temperature, the annual electricity usage rises by nearly 10%," the text notes, with peak consumption rising even more sharply.

The Path Forward

The commentary concludes by assessing the difficulty of the transition. With the average Chinese coal-fired plant only 12 years old, moving away from coal risks stranding billions in assets that have not yet depreciated. "Getting the country's energy industry to change that is going to be as hard as getting the United States to wean off oil," Asianometry asserts. This comparison to the US oil industry effectively illustrates the magnitude of the political and economic challenge. The solution requires unprecedented central government involvement, including the creation of nationwide wholesale markets and better coordination between provinces.

Critics might argue that the author underestimates the political will of the central government to enforce green mandates over local economic interests, given the high stakes of climate policy. Yet, the piece maintains a sober tone, suggesting that while progress is being made, the timeline for a coal-free grid is far longer than the headlines suggest.

Bottom Line

Asianometry's strongest contribution is its refusal to conflate renewable capacity with renewable reliability, exposing the economic and logistical realities that keep coal dominant. The argument's biggest vulnerability lies in its reliance on current cost structures, which may shift rapidly with technological breakthroughs in battery storage. Readers should watch for how the administration navigates the tension between stranding young coal assets and preventing the kind of supply shocks that cripple the global manufacturing chain. The transition is not just an environmental imperative but a complex economic puzzle that the world is watching unfold.

Sources

Why China can't keep the lights on

by Asianometry · Asianometry · Watch video

China has been the world's single largest energy consumer since 2011. Their energy use demand has grown by an average of 4% a year since 1980 and that is not expected to change. Every country wants to have a lot of stable, reliable electricity, but China in particular needs a lot of it and most of that electricity comes from coal. It has been coal for a while now and is going to still be coal for a long time thereafter.

In this video, I want to look at the role of coal in China's energy ecosystem, why the country remains so reliant on non-renewable energy sources, and what might be done about it in the future. But first, I want to talk about the Asianometry newsletter. If you subscribe to the channel, you should also sign up for the newsletter, read the full scripts to older videos with extra commentary after the fact. You can find a link to the newsletter in the video description below, or you can just go toometry.com.

As of right now, you can expect a new newsletter every Thursday at 1:00 a.m. Taiwan time. All right, back to the show. China has had to deal with power shortages throughout its modern existence.

Despite the frenzied headlines, what is happening right now has happened before. During the socialist development a, the country saw electricity as an entitlement, a simple means towards an end. A single utility/dep department handled everything related to power and prices at this time were simply an accounting metric held at below cost. It was at this time that coal euphemistically called thermal power began dominating China's power mix.

Since prices were so low, electricity was often wasted. But at the same time, demand was quite low. The nation's economy had grown to a halt with political movements like the Great Leap Forward and the Cultural Revolution. The economic reform a would spark a rise in demand and with that a bunch of power shortages.

Prioritizing industrial demand, the government limited residential usage of electricity. But everyone knew such a solution cannot be permanent. Starting in the mid1 1980s, the country resolved to scale up its power supply capacity to deal with the chronic blackouts. In 1985, the government broke the state utilities absolute monopoly, decentralizing authority to localities.

They allowed foreign investors and domestic companies to invest in building power generation ...