Where does Fluence Energy source its components?
United States. Supply chain mapped to 32 inputs across 5 countries.
No federal designation found. Fluence Energy is not named on any of the 3 federal restricted-party lists screened for this record (DOD Section 1260H, BIS Entity List, OFAC SDN List), and the United States is not a covered nation under the FEOC rules. Is Fluence Energy a Foreign Entity of Concern?
Upstream sourcing exposure
18 in covered nations - 6 elevated, of 32 nodes.
Where inputs are mined and refined. Not a FEOC determination for the company -- see the federal list screening above.
Refining chokepoint
2 of 2 processing/refining steps in covered nations
Sourcing Concentration by Country
Sourcing risk across the graph
Where each input is mined or refined. Not a FEOC determination for the company.
Legend
Node Types
Sourcing risk
Relationships
Every mapped input in the Fluence Energy supply chain
32 nodes, grouped by supply-chain tier. Sourcing risk describes where an input is mined or refined; it is not a FEOC determination for Fluence Energy.
Producer (1)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| Fluence EnergyArlington, VA (HQ); integration in AZ, TX, TN, SC, UT | United States | No known risk factor | Grid-scale BESS integrator (Gridstack / Gridstack Pro / Sunstack). Dual-source cell strategy: ~half US (AESC/Fixx Tennessee), ~half China. Overall clean via domestic-content pathway but China midstream exposure remains. |
Supplier (2)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| Fixx Energy (ex-AESC) TennesseeSmyrna, TN | United States | No known risk factor | Took over AESC Tennessee cell plant (May 2026); multiyear LFP cell supply agreement with Fluence. Domestic-content cell source. |
| Chinese Cell Supplier (CATL et al.)China cell gigafactories | China | Covered nation | Long-term supply deals with CATL / Chinese cell makers cover ~half of Fluence cell volume; FEOC-flagged imports. |
Component (8)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| LFP Battery Cell (305Ah)Smyrna, TN (Fixx Energy, ex-AESC) + Chinese cell imports | United States | Elevated sourcing risk | Core energy element. US-made cells from Tennessee qualify for domestic content; ~half of supply still imported from Chinese cell makers (CATL and others). |
| Battery Module AssemblyUtah + Arizona module lines | United States | No known risk factor | Cells assembled into modules domestically (Utah/AZ) to build domestic content share; part of Fluence's 5-facility US footprint. |
| Power Conversion System (PCS/Inverter)US + EU + Asia inverter partners (e.g. SMA, Sungrow) | United States | Elevated sourcing risk | Bidirectional grid-forming inverter. Fluence sources from multiple global inverter makers; some Asian-sourced units create review exposure. |
| Enclosure / Steel ContainerUS contract manufacturers (AZ/TX) | United States | No known risk factor | Structural steel enclosure, insulation, doors, cable penetrations. Largely domesticated for domestic-content credit. |
| Thermal Management SystemLiquid-cooling / HVAC + chiller suppliers | United States | Elevated sourcing risk | Liquid cooling and HVAC for cell temperature control; compressor/chiller subcomponents often Asia-sourced. |
| Fire Detection & SuppressionIntegrated gas/smoke detection + suppression | United States | No known risk factor | Safety subsystem integrated into enclosure per NFPA 855 / UL 9540A. |
| BMS & Control ElectronicsFluence OS + BMS/EMS hardware | United States | Elevated sourcing risk | Battery management, EMS and Fluence OS software; PCB/electronic subcomponents have Asian supply exposure. |
| Transformer & SwitchgearMV transformers / switchgear suppliers | United States | Elevated sourcing risk | Low-frequency MV transformer and switchgear for grid interconnect; grain-oriented electrical steel has global (incl. Asian) sourcing. |
Processing and refining (2)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| Lithium Refiner (China)Chinese lithium converters (Jiangxi/Sichuan) | China | Covered nation | ~67-81% of global spodumene conversion to Li carbonate/hydroxide occurs in China; primary FEOC chokepoint for lithium. |
| Spherical Graphite Refiner (China)Chinese spheroidization/purification plants | China | Covered nation | Spheroidization + HF/thermal purification to 99.95% C. <1% of coated spherical graphite is processed outside China. |
Raw material (14)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| LFP Cathode Active MaterialChinese cathode plants | China | Covered nation | >98% of LFP cathode active material is produced in China; near-monopoly midstream chokepoint even for US-made cells. |
| Graphite Anode Active MaterialChinese anode/coating plants | China | Covered nation | China controls ~74% of graphite anode supply chain and nearly all spherical/coated anode processing. |
| Battery SeparatorChinese separator makers | China | Covered nation | Polyolefin microporous separator; China dominates wet-process separator output for LFP cells. |
| ElectrolyteChinese electrolyte / LiPF6 plants | China | Covered nation | LiPF6 salt in carbonate solvents; China dominates electrolyte and LiPF6 production. |
| Copper Foil (Anode Current Collector)Chinese electrolytic Cu-foil mills | China | Covered nation | Battery-grade rolled/electrodeposited copper foil; Chinese-dominated conversion step. |
| Aluminum Foil (Cathode Current Collector)Chinese Al-foil mills | China | Covered nation | Cathode current collector foil; predominantly Chinese battery-foil supply. |
| Binders & Conductive AdditivesChinese PVDF / carbon-black plants | China | Covered nation | PVDF binder, CMC/SBR and conductive carbon; China leads PVDF battery-grade supply. |
| Iron Phosphate Precursor (FePO4)Chinese iron-phosphate precursor plants | China | Covered nation | pCAM tier: iron sulfate + phosphoric acid -> iron phosphate, then mixed with Li2CO3 to form LFP. Overwhelmingly Chinese. |
| Iron Sulfate (FeSO4)By-product of Chinese TiO2 sulfate process | China | Covered nation | Cheap iron source; by-product of ilmenite smelting for TiO2 pigment in China (~3.5t per t pigment). |
| Phosphoric AcidChinese phosphate chemical plants | China | Covered nation | Battery-grade phosphoric acid reacts with iron sulfate to form iron phosphate precursor. |
| Battery-Grade Lithium CarbonateRefined product feeding LFP cathode | China | Covered nation | LFP chemistry uses lithium carbonate (not hydroxide). Refined predominantly in China. |
| Synthetic Graphite (from Petroleum Coke)Chinese graphitization furnaces | China | Covered nation | Petroleum-coke feedstock graphitized >2500C; alternative anode source, China-dominated for battery grade. |
| Iron Ore FeedstockIron units for FePO4 chain | China | Covered nation | Iron units ultimately trace to iron/ilmenite feedstock; low FEOC concern individually but flows through Chinese chemical chain. |
| SiC / IGBT Power SemiconductorsGlobal power-semi fabs (US/EU/Asia) | United States | Elevated sourcing risk | PCS switching devices; SiC/IGBT from Infineon/onsemi/Wolfspeed-class fabs plus Asian supply -> mixed sourcing. |
Mine and extraction (4)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| Spodumene Mine (Australia)Pilbara hard-rock operations (e.g. Greenbushes/Pilgangoora) | Australia | No known risk factor | Australia mines ~70% of hard-rock lithium but exports ~96% to China for refining; allied-mined but China-refined. |
| Lithium Brine (South America)Atacama / lithium triangle brine | Chile | No known risk factor | Alternative lithium feedstock; secondary source to hard rock for carbonate. |
| Natural Flake Graphite Mine (China)Chinese flake graphite mines (e.g. Heilongjiang) | China | Covered nation | China mines ~77% of world natural graphite (~1.4Mt of 1.8Mt in 2025). |
| Natural Flake Graphite Mine (Mozambique)Balama (Syrah Resources) | Mozambique | No known risk factor | World's largest single graphite mine (~350kt/yr); allied-mined but flake still largely China-refined. |
Logistics (1)
| Input | Origin | Sourcing risk | Basis |
|---|---|---|---|
| Trans-Pacific Import LogisticsChina->US ocean freight | China | Covered nation | Imported cells/materials subject to 25% tariffs on Chinese batteries; motivates domestication. |
Material flow (33 relationships)
- Fluence Energy manufactures LFP Battery Cell (305Ah) (LFP battery cell)
- Fluence Energy assembles Battery Module Assembly (battery module)
- Fluence Energy assembles Power Conversion System (PCS/Inverter) (power conversion system)
- Fluence Energy assembles Enclosure / Steel Container (enclosure / container)
- Fluence Energy assembles Thermal Management System (thermal management)
- Fluence Energy assembles Fire Detection & Suppression (fire suppression)
- Fluence Energy assembles BMS & Control Electronics (BMS / controls)
- Battery Module Assembly assembles LFP Battery Cell (305Ah) (LFP cell into module)
- LFP Battery Cell (305Ah) sources from Fixx Energy (ex-AESC) Tennessee (US-made LFP cell)
- LFP Battery Cell (305Ah) sources from Chinese Cell Supplier (CATL et al.) (imported LFP cell)
- Chinese Cell Supplier (CATL et al.) sources from Trans-Pacific Import Logistics (trans-Pacific import)
- LFP Battery Cell (305Ah) supplies LFP Cathode Active Material (LFP cathode active material)
- LFP Battery Cell (305Ah) supplies Graphite Anode Active Material (graphite anode active material)
- LFP Battery Cell (305Ah) supplies Battery Separator (separator)
- LFP Battery Cell (305Ah) supplies Electrolyte (electrolyte)
- LFP Battery Cell (305Ah) supplies Copper Foil (Anode Current Collector) (copper foil)
- LFP Battery Cell (305Ah) supplies Aluminum Foil (Cathode Current Collector) (aluminum foil)
- LFP Battery Cell (305Ah) supplies Binders & Conductive Additives (binders & additives)
- LFP Cathode Active Material supplies Iron Phosphate Precursor (FePO4) (iron phosphate precursor)
- LFP Cathode Active Material supplies Battery-Grade Lithium Carbonate (lithium carbonate)
- Iron Phosphate Precursor (FePO4) supplies Iron Sulfate (FeSO4) (iron sulfate)
- Iron Phosphate Precursor (FePO4) supplies Phosphoric Acid (phosphoric acid)
- Iron Sulfate (FeSO4) supplies Iron Ore Feedstock (iron feedstock)
- Battery-Grade Lithium Carbonate refines Lithium Refiner (China) (lithium refining)
- Lithium Refiner (China) refines Spodumene Mine (Australia) (spodumene concentrate)
- Lithium Refiner (China) refines Lithium Brine (South America) (lithium brine)
- Graphite Anode Active Material refines Spherical Graphite Refiner (China) (spherical graphite refining)
- Graphite Anode Active Material supplies Synthetic Graphite (from Petroleum Coke) (synthetic graphite)
- Spherical Graphite Refiner (China) refines Natural Flake Graphite Mine (China) (natural flake graphite)
- Spherical Graphite Refiner (China) refines Natural Flake Graphite Mine (Mozambique) (natural flake graphite)
- Power Conversion System (PCS/Inverter) supplies SiC / IGBT Power Semiconductors (SiC/IGBT power semiconductors)
- Power Conversion System (PCS/Inverter) assembles Transformer & Switchgear (transformer & switchgear)
- Thermal Management System supplies Transformer & Switchgear (electrical BOS shared)
Sources and methodology
Research-based supply-chain map compiled from public sources - not an audited bill of materials. Tiers reflect the standard industry structure for this product. Sourcing risk on a node describes where that input is typically mined or refined; it is not a FEOC determination for Fluence Energy, and it is not a screening result for the node itself unless a federal listing is cited against it. Verify against primary documentation before making a compliance determination.
Primary sources (4) - government, filings, standards bodies
- sec.gov sec.gov/Archives/edgar/data/1868941/000186894125000081/flnc-20250930.htm
- iea.org iea.org/reports/global-critical-minerals-outlook-2025/beyond-nmc-batteries-supply-chain-issues-for-emerging-battery-technologies
- usitc.gov usitc.gov/publications/332/working_papers/gvc_paper.pdf
- pubs.usgs.gov pubs.usgs.gov/periodicals/mcs2025/mcs2025-graphite.pdf
Secondary sources (20) - trade press, analysts, reference works
- fluenceenergy.com fluenceenergy.com/domestic-content/
- energy-storage.news energy-storage.news/fluence-and-saft-start-us-manufacturing-for-domestic-content/
- energy-storage.news energy-storage.news/fluence-grows-us-manufacturing-footprint-with-arizona-factory-opening/
- solarpowerworldonline.com solarpowerworldonline.com/2026/05/aesc-sells-tennessee-lithium-battery-cell-manufacturing-plant-to-fixx-energy/
- ess-news.com ess-news.com/2025/09/05/fluence-announces-first-shipment-of-us-domestic-content-battery-storage-systems/
- renewableenergyworld.com renewableenergyworld.com/energy-storage/battery/domestic-battery-manufacturing-gets-a-boost-with-fluences-new-production-line/
- energy-storage.news energy-storage.news/fluence-unveils-gridstack-pro-designed-for-largest-and-most-complicated-projects/
- sciencedirect.com sciencedirect.com/science/article/pii/S2666248525000071
- sciencedirect.com sciencedirect.com/science/article/pii/S0378775325018774
- ufinebattery.com ufinebattery.com/blog/how-china-dominates-the-global-lfp-battery-market/
- woodmac.com woodmac.com/news/opinion/easing-global-reliance-on-chinese-lithium-supplies/
- camaltd.com camaltd.com/china-australia-lithium-shift-2026/
- source.benchmarkminerals.com source.benchmarkminerals.com/article/infographic-china-controls-three-quarters-of-graphite-anode-supply-chain
- modeldiplomat.com modeldiplomat.com/learn/glossary/graphite-refining
- cen.acs.org cen.acs.org/energy/energy-storage-/Lithium-iron-phosphate-comes-to-America/101/i4
- lanxess.com lanxess.com/en/products/brands/bayferrox/lfp-precursors
- mining-technology.com mining-technology.com/analyst-comment/natural-graphite-production/
- tls-containers.com tls-containers.com/tls-blog/critical-components-of-bess-inverter-transformer-and-switchgear-unveiled
- infineon.com infineon.com/cms/en/applications/industrial/energy-storage-systems/power-conversion-systems
- howtostoreelectricity.com howtostoreelectricity.com/silicon-carbide-vs-silicon-bess-pcs/
Common questions
- Where does Fluence Energy source the inputs in this product?
- This map traces 32 inputs across 5 countries, including 6 mines and refiners. It is compiled from public sources and is not an audited bill of materials.
- How much of the Fluence Energy supply chain sits in a covered nation?
- 18 of 32 mapped inputs are sited in a covered nation (China, Russia, Iran or North Korea) or named on a federal restricted-party list. A further 6 carry elevated sourcing risk without either basis.
- Is Fluence Energy itself a Foreign Entity of Concern?
- No federal designation found. Fluence Energy is not named on any of the 3 federal restricted-party lists screened for this record (DOD Section 1260H, BIS Entity List, OFAC SDN List), and the United States is not a covered nation under the FEOC rules. Sourcing risk in this map describes where inputs are mined and refined and is a separate question from the company's own federal screening.
