Energy Technology Perspectives 2024
International Energy Agency
The deepening connections between energy, trade, manufacturing and climate are the focus of this latest edition of Energy Technology Perspectives (ETP), the IEA’s flagship technology publication. Building on the comprehensive assessment of clean energy technology supply chains set out in ETP-2023, this year’s edition offers cutting-edge analysis based on rich and detailed new data, granular surveys of industry, and a bottom-up approach to fresh modelling. Also see a video of the IEA's summary presentation of the report here.
The sizeable economic opportunities associated with manufacturing clean energy technologies are a top priority for government and industry
The report finds that the global market value for six mass-manufactured clean energy technologies – solar PV, wind, electric vehicles (EVs), batteries, electrolysers and heat pumps – grew nearly fourfold between 2015 and 2023, when it surpassed USD 700 billion, or around half the value of all the natural gas produced globally that year. Growth has been driven by surging clean technology deployment, particularly for EVs, solar PV and wind. Under today’s policy settings, the market for these clean technologies is set to nearly triple by 2035 to more than USD 2 trillion. This is close to the average value of the global crude oil market in recent years.
Three strategic areas of public policy – energy, industry and trade – are increasingly interwoven
The energy transition presents challenging decisions for governments, which face tensions and trade-offs based on the industrial and trade policies they opt to pursue. Governments must reconcile their commitment to well-functioning markets and cost-effective clean energy transitions, on the one hand, with the need to establish secure, resilient clean technology supply chains, on the other.
A major wave of investment in manufacturing clean technologies is underway, with many new factories being built across the world
Global investment in clean technology manufacturing rose by 50% in 2023, reaching USD 235 billion. This increase is equal to nearly 10% of the growth in investment across the entire world economy. Four-fifths of the clean technology manufacturing investment in 2023 went to solar PV and battery manufacturing, with EV plants accounting for a further 15%. The amount of manufacturing capacity being added has been comfortably outpacing current deployment levels. Despite some recent cancellations and postponements of solar PV and battery manufacturing projects, investment in clean technology manufacturing facilities is set to remain close to its recent record levels, at around USD 200 billion in 2024.
Materials such as steel, aluminium and ammonia are growing in importance
Steel and aluminium are direct inputs for clean technology manufacturing, as well as for the buildings, vehicles and power plants in which such technologies are deployed. Meanwhile, ammonia is mostly used to make fertilisers, with emerging applications as a fuel in the shipping and power sectors.
Clean technology supply chains are highly dependent on trade, and will continue to be in the future
At around USD 200 billion, the value of trade in clean technologies is nearly 30% of their global market value. The biggest element is trade in electric cars – which has doubled since 2020, reaching around one-fifth of trade in all cars in 2023 in value terms – while solar PV is in second place. Under today’s policy settings, overall clean technology trade is on track to reach USD 575 billion by 2035, around 50% more than the current value of global trade in natural gas.
Cost competitiveness is an important driver of manufacturing investment, but not the only one
China is currently the cheapest location for manufacturing the key clean energy technologies considered in this report, without taking into account explicit financial support from governments. It costs up to 40% more on average to produce solar PV modules, wind turbines and battery technologies in the United States, up to 45% more in the European Union, and up to 25% more in India.
The door of the new energy economy is still open to emerging markets
Emerging and developing economies in Latin America, Africa and Southeast Asia account for less than 5% of the value generated from producing clean technologies today. To identify opportunities, ETP-2024 collected country-by-country data across more than 60 indicators, assessing the business environment, infrastructure for energy and transport, resource availability and domestic market size.