Global Energy Storage Supply Chain Landscape: Localisation Mandates, US & EU Domestic Content Rules and Impacts on Chinese ESS Exports
The global energy storage industry is experiencing a profound supply chain restructuring. For more than a decade, China has dominated the full battery value chain, from raw material processing, cell manufacturing, BMS and PCS production to system integration. This cost and scale advantage has enabled rapid deployment of utility-scale, commercial and residential energy storage worldwide. However, new localisation policies rolled out in the United States and Europe are rewriting the rules of competition, forcing equipment manufacturers, project developers and EPC firms to rethink cross-border supply strategies.
What are localisation and domestic content requirements?
Localisation mandates refer to policy requirements that oblige a certain share of components, manufacturing labour or raw material processing to be completed within a region. Domestic content rules are a specific type of localisation policy, often tied to tax credits, subsidies, public financing or project qualification.
The core logic is straightforward: governments want to build domestic battery manufacturing capacity, create local jobs and reduce reliance on imported Asian battery products. Previously, project developers could select the lowest-cost ESS hardware globally. Today, subsidy eligibility is increasingly conditional on local component sourcing and onshore manufacturing.
US IRA and FEOC rules: reshaping North America storage market
The US Inflation Reduction Act (IRA) introduced domestic content bonus tax credits for energy storage projects. To unlock extra ITC bonuses, projects need to meet phased domestic manufactured content thresholds. The requirement rises year by year, from 40% in earlier periods up to 55% and beyond after 2026. Steel, iron, battery cells, packs, inverters and BMS are all counted as manufactured components under this rule.
Meanwhile, FEOC (Foreign Entity of Concern) restrictions represent a harder barrier. If a storage project uses battery cells, modules or critical components linked to FEOC entities, it will lose eligibility for federal tax credits. The rule creates a binary result: compliant projects get up to 30% investment tax credit, while non-compliant projects receive zero subsidy and may face credit recapture risks.
This policy does not ban Chinese ESS imports completely, but it drastically reduces the economic attractiveness of fully China-made storage systems for subsidised utility-scale projects. Many US developers now split procurement: non-subsidised small projects may still source full systems from China, while large IRA-qualified projects must adopt locally assembled packs or locally manufactured cells.
EU policy framework: Net Zero Industry Act, CRMA and public funding restrictions
Europe’s policy framework follows a different path but shares the same strategic goal: strengthening regional battery autonomy. The Net Zero Industry Act and Critical Raw Materials Act (CRMA) set targets for domestic battery manufacturing capacity, recycled material ratios and diversified raw material supply.
In addition, the EU has introduced restrictions on public funding for energy storage inverters and BMS from high-risk suppliers. Projects receiving EU public finance may no longer deploy certain imported PCS and battery control systems. Some member states also propose phased local content requirements for large-scale battery energy storage systems.
Compared with the United States, Europe maintains relatively open market access for residential and balcony storage. Many Chinese manufacturers still deliver large volumes of balcony ESS and small commercial systems to Germany, Italy and other EU countries. Nevertheless, for large utility storage projects, local assembly and local component sourcing are rapidly becoming a precondition to win public-backed contracts.
Impacts on Chinese energy storage equipment exports
1. Traditional direct export model faces margin compression
Pure finished-goods export from China becomes less competitive for subsidised large projects in the US and EU. Even if product quality and price remain attractive, developers cannot afford to sacrifice tax credits or public funding eligibility. The total cost advantage of Chinese systems is partially offset by lost subsidy value.
2. Supply chain regionalisation becomes the mainstream strategy
Leading Chinese storage firms are responding by building overseas manufacturing hubs in Europe, Southeast Asia and North America. Local assembly plants for battery packs, containerised ESS and inverters help meet domestic content criteria. This is not simply tariff avoidance; it is a way to maintain access to incentive-driven projects.
The supply chain is evolving into three regional clusters: China-centred Asia supply base, European battery cluster, and North American onshore manufacturing ecosystem. Each cluster serves its primary regional market while selectively exporting to other regions.
3. Market segmentation: different markets show divergent demand
Markets can be divided into three tiers:
• High-barrier subsidised markets (US large utility storage): local content and FEOC compliance are mandatory. Direct China-made cell exports are limited.
• Moderate-barrier European market: balcony ESS and small commercial storage remain open; large projects gradually require localised components.
• Low-barrier emerging markets (Middle East, Latin America, Southeast Asia, Australia): cost remains the top priority, and Chinese full-system exports still hold strong advantages.
4. Compliance and documentation become core competitive factors
Supply chain traceability, component origin certificates, raw material audit trails and local certification are no longer optional add-ons. Buyers now require full origin documentation before contract signing. Vendors who cannot provide transparent supply chain records will be excluded from tender lists.
Opportunities amid restructuring
While local content policies create obvious barriers, they also open new opportunities for Chinese energy storage companies. Many firms are shifting from selling hardware only to delivering localised manufacturing, technical support, after-sales service and supply chain consulting.
Joint ventures with local partners, regional assembly lines and modular supply models become viable options. Some suppliers adopt a hybrid approach: core components produced in China, final assembly and testing performed locally in Europe or the US to meet content rules. This hybrid model balances cost control and policy compliance.
Conclusion
The global energy storage market is moving away from a single globalised supply chain toward a multi-region fragmented ecosystem. US and EU domestic content rules are not temporary trade measures; they represent long-term industrial strategies to build local battery capacity.
Chinese ESS exporters will need to segment their product strategy by region: continuing direct finished goods exports for emerging markets, while building localised production capacity and partnership networks for the US and EU markets. Companies that can balance cost competitiveness, supply chain transparency and local compliance will retain strong positions in the next phase of global energy storage growth.
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