Power cuts, emissions spikes: Chinese manufacturing’s self-generation dilemma

Chinese scientists and economists have uncovered a troubling feedback loop in the country’s industrial sector: when power outages strike, manufacturing firms turn to on-site self-generation — typically using diesel or coal — and the result is a measurable rise in carbon dioxide emissions. The study, forthcoming in the Journal of Development Economics (Volume 183, September 2026), draws on detailed firm-level data from China to quantify the environmental cost of electricity insecurity.

Authored by Panbing Wan, Mian Yang, and Bing Zhang, the research provides robust empirical evidence that power disruptions do not merely interrupt production—they actively worsen the carbon footprint of Chinese manufacturing. The authors show that the emissions penalty from self-generation is substantial, offsetting many of the gains made by China’s broader push toward cleaner grid electricity. For a nation that has committed to peaking carbon emissions before 2030 and achieving carbon neutrality by 2060, these findings carry significant policy weight.

The broader significance for global professionals is clear. As supply chains become increasingly dependent on Chinese manufacturing capacity, any policy that addresses grid reliability must account for the perverse incentive it creates: making the grid more resilient in ways that avoid outages can simultaneously reduce the allure of dirtier backup power. The study suggests that targeted investments in grid stability and the provision of cleaner backup options—such as battery storage or gas turbines—could yield both economic and environmental dividends.

Why it matters:
Power outages in China’s industrial zones may be driving a hidden but significant source of carbon emissions, complicating the nation’s climate commitments. Investors and procurement officers should recognise that grid reliability improvements are not merely an operational concern—they are a direct lever for decarbonisation in one of the world’s largest manufacturing economies.

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