Russia-sized mystery in China’s power sector that will hurt climate goals



Here’s a new obstacle that could prevent the world finally turning the corner on climate change: Imagine that over the coming decade a whole new the size of were to pop up out of nowhere. With the world’s fourth-largest sector and largest burden of power plant emissions after China, the U.S. and India, this new on its own would be enough to throw out efforts to halt global warming — especially if it keeps on growing through the 2030s.


That’s the risk inherent in China’s seemingly insatiable appetite for grid power.


There's a Russia-sized mystery in China's electricity sector


From the cracking pace of renewable build-out last year, you might think the country had broken the back of its carbon addiction. A record 55 gigawatts of solar power and 48 gigawatts of wind were connected — comparable to installing the generation capacity of Mexico in less than 12 months. This year will see an even faster pace, with 93 GW of solar and 50 GW of wind added, according to a report last week from the Council, an industry association.


That progress could in theory see the country’s power sector emissions peak within months, rather than the late-2020s date the government has hinted at. Combined with a smaller quantity of hydro and nuclear, 2022’s additional solar panels and wind turbines will probably add about 310 terawatt-hours to zero-carbon generation this year. That 3.8% increase would be sufficient to power the U.K.


Countries that have reached China’s levels of per-capita consumption (already on a par with most of Europe) typically see growth rates at less than half that level. Grid supply could grow at a faster pace than Brazil, Iran, South Korea or Thailand managed over the past decade without adding a ton of additional carbon to the atmosphere.





There's a Russia-sized mystery in China's electricity sector


There’s a problem with that picture, however. If electricity demand grows at an even more headlong pace, there simply won’t be enough renewables to supply the grid. Fossil fuels, overwhelmingly coal, will fill the gap.


Such an outcome looks distinctly possible. Electricity consumption in 2021 grew at an extraordinary rate of 10%, and will increase again by between 5% and 6% this year, according to the CEC. That suggests the country is on pace to match the CEC’s forecasts of bullish grid demand over the coming decade, with generation hitting 11,300 terawatt-hours in 2030. External analysts, such as the Energy Agency and BloombergNEF, envisage a more modest growth to around 10,000 TWh.


The difference between those two outlooks is vast — equivalent to all the electricity produced by or Japan. If the CEC is right and the IEA and BloombergNEF are wrong, even the furious rate of renewable installations we’re seeing now won’t be enough to rein in China’s power-sector emissions.


There's a Russia-sized mystery in China's electricity sector


Who’s correct? On one hand, it’s fair to say that power planners usually err on the side of overestimation. If your forecast for electricity demand is too high, state-owned generators will be less profitable than they otherwise would have been — but if it’s too low, you’ll see power cuts and shutdowns like witnessed last autumn, a far more harrowing outcome.


On the other hand, the decarbonization of China’s itself should drive electricity demand well above what we’ve seen in the past. Some 3.3 million electric vehicles were sold in 2021 and BloombergNEF estimates a further 5.7 million will be bought in 2022. Every million EVs will likely add in the region of 2 TWh of load to the grid. Those sums quickly mounts up in a country where electric drivetrains are taking over a market that shifts more than 25 million new cars a year.


Decarbonizing industry, a key element on China’s road to zero emissions, could also change the picture. The IEA sees the country building 25 GW of electolysers to produce hydrogen by 2030, enough to consume some 200 TWh on their own if run close to full-time.


There's a Russia-sized mystery in China's electricity sector


That’s still not enough to justify the scale of demand being forecast, though. is already one of the least efficient countries in the world when it comes to translating energy into economic growth, and despite official pressure on the most wasteful, so called “dual-high” industries such as steel, oil refining, glass and cement, its targets for more thrifty energy usage remain pedestrian.


The countries that have decarbonized fastest are those, such as Germany, the U.K and the U.S., that have seen power demand plateau or even decline, giving new renewable power a chance to swap out fossil-fired generators without chasing an ever-increasing burden on the grid. China’s inability to do this as its population peaks and energy consumption hits developed-country levels isn’t a sign of strength.


Instead, it’s a sign of a country that’s chronically unable to make the transition away from polluting heavy industry and toward the common prosperity and ecological civilization that its president keeps promising. Until China reins in that credit-fueled development model, the risks to its economy and the global climate will only increase.





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