Questions answered in this article
Why is China building more coal plants when renewables are at record levels?
Long-term electricity contracts guarantee coal plants a buyer for their output regardless of demand, crowning out cleaner alternatives and preventing coal use from falling despite massive renewable capacity additions.
How much renewable energy is China actually wasting?
According to recent analysis, China's renewable energy curtailment (power that cannot be used) remains substantial because coal plants have contractual priority to sell electricity to the grid, leaving no room for solar and wind.
What does this mean for UK businesses trying to offset emissions?
Global decarbonisation depends on countries like China shifting away from coal; when major emitters expand coal use, it raises the carbon intensity of global supply chains and makes offsetting strategies more essential for UK companies committed to net-zero targets.
Is China really expanding coal despite its renewable boom?
China's energy landscape presents a paradox that undermines global climate progress. The country added record amounts of solar and wind capacity last year, yet coal power is rebounding, driven by structural market failures rather than demand growth. The culprit is a contractual lock-in: long-term agreements guarantee coal-fired power stations a fixed share of electricity sales, crowding out renewables even when wind and solar are cheaper and cleaner.
This mechanism is not incidental; it is baked into China's electricity system. Coal plants sign contracts that promise them a set quantity of power sales over years or decades, regardless of whether demand exists or whether renewables could serve that demand more efficiently. When a coal plant has a guarantee, the grid operator must buy from it first. Solar and wind farms, by contrast, operate in a more competitive and uncertain environment, often curtailing output when the coal contracts are honoured.
The result is measurable waste. Renewables that could displace fossil fuel generation are simply switched off or underutilised. China's installed renewable capacity is world-leading, yet the economic and contractual structures prevent that capacity from reaching its full decarbonisation potential. For a country responsible for roughly 30% of global CO2 emissions, this inefficiency has ripple effects across international carbon markets and supply chains.
Why do long-term coal contracts matter for global emissions?
Coal contracts are a form of regulatory entrenchment. Governments and utilities argue they provide investment certainty and financial stability. But that certainty comes at an environmental cost: it locks in carbon-intensive generation for decades. Even if a country sets ambitious renewable targets on paper, if the underlying market structure forces coal to be purchased first, those targets become hollow.
China is not alone in this problem, but the scale is significant. When the world's largest emitter fails to retire coal capacity fast enough, or actively builds new coal plants, it affects the global carbon balance. It also shapes investment flows: capital that could fund clean energy transitions in developing nations flows instead into coal infrastructure in countries where it is still being expanded.
For UK businesses, this matters directly. Many source goods from China. When Chinese supply chains rely on coal-heavy electricity, the embodied carbon in imported products rises. A widget made in a coal-powered factory carries a larger carbon footprint than the same widget made in a renewables-powered facility. Companies working towards the UK's net-zero target must account for Scope 3 emissions, which include emissions in supply chains. China's coal rebound increases the carbon intensity of those chains, making external offsetting more critical for businesses that cannot immediately shift suppliers.
What can UK readers and businesses do?
Global decarbonisation requires action at the policy level: China must reform its electricity market to remove preferential treatment for coal and allow renewables full participation. But UK individuals and businesses cannot wait for that change. They can take control of their own emissions footprint.
For individuals, understanding your carbon footprint and offsetting unavoidable emissions is a practical step. Offset Britain provides carbon offsetting from £5.99 a month for individuals, allowing you to neutralise emissions from transport, energy, and consumption while supporting verified renewable projects globally. For businesses importing goods or operating supply chains that cross borders, the picture is more complex but equally important. Offset Britain's business offsetting starts from £566 a year and helps companies measure, report, and offset Scope 1, 2, and 3 emissions. By purchasing verified carbon credits linked to renewable energy, reforestation, or methane capture projects, businesses can hedge against rising supply-chain carbon intensity and demonstrate genuine net-zero commitment to customers and investors.
The broader point is this: global emissions trends should not paralyse local action. China's coal expansion is a reason to offset more carefully, not less. Every tonne of CO2 offset today reduces atmospheric concentration and supports the renewable projects that China's market failures are blocking.
Sources & Methodology
- Climate Home News: China's coal power rebounds as record clean energy goes to waste
- UK Government: Net Zero Strategy and Green Finance Strategy
- Offset Britain: Individual carbon offsetting
- Offset Britain: Business carbon offsetting
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