Global energy technologies are expanding rapidly, but their supply chains remain structurally fragile. According to the IEA, heavy geographic concentration and bottlenecks expose the sector to systemic risks and major economic shocks
Energy technologies under pressure from concentrated supply chains
Energy technologies are increasingly reliant on supply chains that are exposed to systemic risks. High levels of production concentration and structural bottlenecks risk disrupting entire industrial ecosystems.
This is the key finding of the latest Energy Technology Perspectives 2026 report by International Energy Agency, which highlights how every supply chain includes at least one critical stage where alternative production capacity is insufficient.
In the event of disruptions, economic impacts could be immediate and severe, reaching up to 17 billion dollars per month for global electric vehicle production. The picture that emerges is of a rapidly growing system that remains structurally vulnerable.
Production of energy technologies concentrated in a few countries
The IEA analysis shows that manufacturing of key clean energy technologies is heavily concentrated in a limited number of countries. China holds a dominant position across much of the value chain, accounting for between 60% and 85% of production capacity, exceeding 95% in some segments.
This concentration is particularly evident in intermediate stages such as material processing and the manufacturing of strategic components. The refining of critical minerals represents one of the most exposed points. Magnetic rare earths, essential for wind turbines and electric vehicles, are a clear example, with near-total dependence on Chinese supply.
Despite new industrial and mining projects, the IEA expects no major diversification of supply chains before 2030.
Where the bottlenecks in energy technologies emerge
A central element of the report is the “N-1” analysis, which simulates the removal of the largest global supplier. Results show that, although some alternative capacity exists, every supply chain has at least one stage where less than 25% of demand could be met without the leading producer.
This highlights the presence of structural weak links. These are often highly specialised intermediate steps where production is both concentrated and difficult to replicate. Under these conditions, a single disruption can cascade through the entire chain and halt final production.
The IEA also stresses that higher concentration increases systemic risk. The greater the dependence on a single player, the higher the potential impact of geopolitical tensions, trade restrictions or physical disruptions.
Economic impact of supply disruptions in energy technologies
The economic consequences of supply interruptions vary across technologies but remain significant.
In the battery sector, a one-month disruption of Chinese exports could result in around 17 billion dollars in lost production for the global electric vehicle industry, with more than half of the impact concentrated in the European Union.
For solar photovoltaics, a similar disruption would reduce module production outside China by approximately 1 billion dollars per month, with around 40% of the impact affecting India and Southeast Asia.
These figures underline how supply chains are not only an industrial issue, but a critical factor for economic stability.
Growing demand puts pressure on energy technologies supply chains
The global market for clean energy technologies reached nearly 1.2 trillion dollars in 2025, with an average annual growth rate of 20% over the past decade.
According to the IEA, the market could expand to 2 trillion dollars by 2035, approaching 3 trillion in more ambitious scenarios. This growth is placing increasing pressure on supply chains, which must support rapidly rising demand.
Electric vehicles dominate the market, accounting for roughly three quarters of total value.
Global trade remains essential for energy technologies
International trade continues to play a central role in maintaining supply chain functionality. After a slowdown in 2024, global trade volumes grew by around 10% in 2025.
China remains the leading exporter, with more than 165 billion dollars in exports, representing about 15% of its trade surplus. Over the longer term, trade value could more than double, rising from 290 billion to 620 billion dollars by 2035.
This confirms a structural imbalance, where demand is globally distributed while production remains concentrated, making trade indispensable.
Investments and future outlook for energy technologies
Industrial investment has slowed in recent years. After peaking at 220 billion dollars in 2023, it fell below 200 billion in 2024 and declined further in 2025.
This trend is partly driven by overcapacity in sectors such as solar and batteries. However, future investments are expected to increasingly focus on diversifying supply chains.
The European Union and the United States are gaining weight in global investments, with their combined share potentially exceeding 35% between 2031 and 2035.
How to reduce risks in energy technologies supply chains
The IEA highlights that security and competitiveness are closely linked. Reducing risks requires coordinated action across multiple fronts, including the development of production capacity in critical segments, geographic diversification and stronger international cooperation.
Cost structures play a decisive role. Competitive advantage often depends on access to low-cost energy, automation and industrial scale. Without targeted policy interventions, current concentrations are likely to persist.
