China's Clean Energy Exports Could Avoid 4 Billion Tonnes of CO2 Over Their Lifetimes

A Global Climate Gain Built in Chinese Factories

China's exports of solar panels, batteries, wind turbines and electric vehicles in 2024 are estimated to reduce annual carbon dioxide emissions outside its borders by about 220 million tonnes, or 1%. Over the working lives of those products, the avoided emissions could reach 4 billion tonnes.

The estimated annual saving is nearly four times Singapore's annual emissions and almost equal to Australia's. Including Chinese owned factories and clean power projects overseas raises the estimated reduction to 350 million tonnes a year, about 1.5% of emissions outside China.

These figures put a concrete measure on China's growing influence over the global energy transition. Equipment manufactured in China is helping other countries generate electricity without burning fossil fuels, store power for later use and replace vehicles that burn petrol or diesel.

The benefits come with economic and political tensions. China exported $177 billion worth of clean energy products in 2024, about 5% of its total exports. Its manufacturing strength has made these technologies more affordable, while prompting concerns about dependence on Chinese suppliers, industrial subsidies and competition with manufacturers elsewhere.

The United States and European Union have imposed tariffs and launched investigations into alleged unfair subsidies and excess production capacity. Those measures seek to protect domestic industries, yet higher prices and disrupted trade could also slow the installation of equipment that reduces emissions.

As of July 22, 2025, the central issue is how countries can obtain affordable clean energy equipment while building secure supply chains and retaining a share of the jobs and investment. China's exports connect those goals, sometimes supporting them together and sometimes placing them in conflict.

How the Emissions Savings Add Up

Solar panels account for the largest estimated reduction from direct equipment exports, followed by batteries, electric vehicles and wind turbines. The estimate for solar panels exported from China in 2024 alone also places their annual emissions savings at 220 million tonnes, equivalent to about 1% of emissions outside China.

Solar panels and wind turbines reduce emissions by producing electricity that would otherwise come from fossil fuels. Electric vehicles reduce the use of fuel in transport. Batteries store electricity so it can be used later, helping energy systems make use of renewable generation when it is needed.

Chinese owned manufacturing plants and clean power projects abroad extend that influence beyond products shipped directly from China. Including those activities brings the estimated annual savings to 350 million tonnes. The difference between the direct export estimate and the broader estimate is 130 million tonnes a year.

Manufacturing the exported products also produces emissions. The estimated amount associated with their production in China in 2024 was 110 million tonnes of CO2. Those manufacturing emissions are typically offset by the emissions avoided during less than a year of operation.

Over their lifetimes, the products are expected to avoid nearly 40 times the emissions generated during production. The distinction between annual savings and lifetime savings matters: 220 million tonnes describes an estimated yearly reduction, while 4 billion tonnes adds up the expected reductions over years of use.

The estimates therefore describe an enduring contribution from equipment exported in a single year. Once installed and operating, a solar panel or wind turbine can continue replacing fossil fuel use beyond the year in which it was manufactured and sold.

Where Chinese Equipment Has the Greatest Effect

China's clean technology exports reach 191 of the 192 other United Nations member states. Their effects vary according to how much equipment countries install, how quickly energy demand is growing and how heavily existing electricity systems depend on fossil fuels.

Sub-Saharan Africa and the Middle East and North Africa are expected to record the largest relative emissions reductions from Chinese clean technology imports and investments. The estimated annual reductions are 3% in sub-Saharan Africa and 4.5% in the Middle East and North Africa, often shortened to MENA.

Affordable Chinese solar panels and wind turbines can help those regions tackle electricity shortages while reducing reliance on fossil fuels. Where demand for electricity is rising, the equipment also gives countries a way to expand supply through renewable generation.

South Asia is another important market. Pakistan illustrates how the affordability of solar equipment and the need for energy can drive rapid adoption. The appeal is practical: countries need more electricity, and lower equipment costs make solar power more accessible.

Malaysia, Thailand, the Philippines, Indonesia and Vietnam are importing Chinese solar and battery technologies as they develop their own clean energy systems. These purchases connect China's manufacturing output with energy decisions across Southeast Asia.

OECD Europe is the largest destination by export value, but its estimated CO2 savings are smaller because its electricity grids are already cleaner. Replacing electricity from a system that burns more fossil fuels avoids more emissions than replacing the same amount of electricity in a cleaner system.

The Scale Behind China's Manufacturing Advantage

China holds at least 60% of global manufacturing capacity for widely manufactured clean technologies, including solar photovoltaic panels, wind turbines and batteries. Photovoltaic, often shortened to PV, refers to panels that turn sunlight into electricity.

China also produces about three quarters of the world's electric vehicle batteries. That position gives its factories a major role in both renewable electricity and transport, two areas where replacing fossil fuels can reduce emissions.

Decades of industrial policy, investment and innovation helped build this capacity. Government support, large production volumes and the ability to manufacture at lower costs than competitors have allowed Chinese companies to become central suppliers to global markets.

The International Energy Agency identifies China as the most cost effective location for manufacturing key clean energy technologies. Production costs are substantially lower than in the United States, European Union or India, supporting the affordability of Chinese equipment abroad.

The recent expansion has brought together investment, industrial output and exports:

• In 2023, China invested more in clean energy than the next ten countries combined.
• In 2024, its clean energy product exports reached $177 billion, about 5% of total exports.
• Clean technology industries now contribute more than 10% of China's gross domestic product, a measure of the value produced by its economy.

Those figures show why clean energy has become more than an environmental policy for China. It is also a substantial part of economic activity, industrial development and international trade.

Who Receives the Economic Benefits?

China captures most of the manufacturing value associated with its clean energy equipment. Yet making the hardware is only one part of the economic activity involved in bringing renewable electricity and electric transport into use.

Project development, installation and services abroad are estimated to generate $720 billion in annual value downstream from the equipment. Downstream means the work that follows manufacturing, such as turning a shipment of panels into an operating electricity project.

The $720 billion estimate is roughly four times the $177 billion value of China's clean energy exports in 2024. The comparison helps explain why countries importing Chinese equipment can still retain substantial economic benefits even when the hardware comes from overseas.

About three quarters of the value from clean energy projects and products is captured outside China. Most financing for clean energy development beyond China's borders also comes from other countries.

China is nevertheless increasing its economic and diplomatic engagement through overseas manufacturing investment and clean power projects. Its international role therefore includes supplying equipment, building factories and participating in the development of energy projects.

For importing countries, the economic choice involves more than whether to buy Chinese products. It also involves who develops projects, who installs and operates them, where financing comes from and how much of that activity remains in the local economy.

Why Supply Chain Dependence Matters

China's manufacturing dominance creates concerns about the security of supplies. A country can gain access to inexpensive equipment while becoming heavily dependent on a concentrated group of suppliers for the technologies needed to change its energy system.

Critical minerals add another layer of concentration. Production and processing of materials such as lithium, cobalt and rare earth elements are concentrated, with China controlling much of the processing and refining.

These materials connect the manufacture of clean energy equipment to the earlier stages of its supply chain. Processing and refining turn mineral resources into materials that manufacturers can use, making those activities important alongside the factories producing finished equipment.

Governments seeking to diversify their supplies are responding to both industrial and geopolitical concerns. Rising tensions can affect confidence in access to components, materials and finished products, even where Chinese manufacturing remains the least costly option.

The challenge is to make supplies more secure while keeping clean technologies affordable. Building alternative sources of equipment and components takes place alongside the immediate need to install renewable generation, batteries and electric vehicles.

Tariffs Put Industry and Climate Goals in Tension

The United States and European Union have used tariffs and investigations to respond to alleged unfair subsidies and excess capacity in China's clean technology industries. Excess capacity means factories can produce more equipment than markets are currently absorbing.

Protecting domestic manufacturers and reducing dependence on Chinese imports are central aims of these measures. Their climate cost could come through higher equipment prices or reduced access to inexpensive technologies, slowing the pace at which countries replace fossil fuels.

Tariffs and export controls can affect several stages of the transition. If equipment becomes more expensive or harder to obtain, renewable electricity projects and electric vehicle adoption may proceed more slowly, making national climate goals harder to meet.

Chinese manufacturers also face risks. Losing access to export markets could deepen excess capacity, reduce profits and slow innovation. Falling sales abroad would affect an industry whose scale has helped push equipment prices down internationally.

The World Economic Forum and the Carnegie Endowment for International Peace have argued for balancing economic security with climate goals. Their assessment is that complete separation from China is neither feasible nor desirable if global emissions targets are to be met.

International cooperation, joint ventures and more transparent supply chains are among the approaches proposed for maintaining a fairer and more resilient market. Such arrangements would connect efforts to spread production with continued access to Chinese technology and manufacturing capacity.

Brazil and Costa Rica have benefited from Chinese clean technology exports by rapidly expanding renewable energy and electric mobility. The United States and European Union are pursuing more domestic production while continuing to rely on Chinese components and expertise.

Three Changes Reshaping China's Energy Economy

China's clean technology expansion is part of three connected changes: reducing emissions, digitizing energy systems and reshaping its role in global cooperation. Together, they affect how the country produces energy, manages it and participates in international markets.

Artificial intelligence, big data and smart grids are helping make energy systems more efficient and responsive. Digital technologies can support the management of resources and the use of renewable electricity as generation and demand change.

Government policy, large investment and a focus on innovation have supported these changes. Research and development spending and clean energy patent filings have surged, helping China become a global leader in clean technology innovation.

Cooperation between government, universities and industry has supported the rapid deployment of renewable generation, batteries and electric vehicles at a scale unmatched by any other country. Manufacturing growth and domestic deployment have developed together.

Coal remains a major challenge. It accounts for 56% of China's primary energy consumption, meaning its share of the energy used across the economy, rather than just electricity generation. That share is projected to decline as renewable energy expands.

China must balance reliable energy supplies with emissions reductions, particularly in regions that depend on coal. At the same time, excess capacity in industries such as solar panel manufacturing has pushed prices down and placed financial pressure on producers.

Lower Costs Are Spreading the Energy Transition

Falling costs for solar power, wind power and batteries are helping renewable energy account for the bulk of new electricity capacity worldwide. China's manufacturing scale has played a major role in making those technologies affordable to more countries.

The United Nations has described the broader shift in terms of fossil fuels "running out of road" as clean energy becomes more competitive and accessible. China's exports form part of that change by connecting lower manufacturing costs with projects and purchases abroad.

Countries importing the equipment gain opportunities to expand electricity supplies, develop renewable energy and reduce fuel use in transport. They also face decisions about technology dependence, fair competition and how to share the economic benefits.

Future deployment depends on managing those competing pressures while continuing to provide affordable equipment. The estimates for China's 2024 exports show the scale already involved: hundreds of millions of tonnes of potential annual CO2 savings and billions of tonnes over the products' working lives.

Key Points

• China's clean energy exports in 2024 are estimated to avoid about 220 million tonnes of CO2 annually outside China, roughly 1% of those emissions.
• Including Chinese owned overseas manufacturing and clean power projects raises estimated annual savings to 350 million tonnes, or about 1.5%.
• Lifetime savings could reach 4 billion tonnes, nearly 40 times the estimated emissions from manufacturing the exported products.
• Sub-Saharan Africa, the Middle East and North Africa, and South Asia are important beneficiaries of affordable Chinese equipment.
• China exported $177 billion in clean energy products in 2024, while downstream economic activity abroad is estimated at $720 billion annually.
• Tariffs, concentrated supply chains and financial pressure on manufacturers complicate efforts to expand affordable clean energy.
• China's manufacturing strength is reducing technology costs globally while coal still accounts for 56% of its own primary energy consumption.