- Advanced Energy Storage 2026
- Chapter 3
Systems and sectors at baseline
Contents
- ·Edition home
- ·Executive summary
- 1Storage is grid infrastructure and a supply chain
- 2Key findings
- 3Systems and sectors at baseline
- 4Risks and capability
- 5Grid dependence on batteries while supply is restricted
- 6Readings from the other desks
- 7The 2027 agenda
- 8Systems in depth
- AMethodology
- BData appendix
- CReferences and record
- ·Complete edition, for print
3.1Where each system stood at evidence close
INF · Deployment
Battery storage added worldwide
108GW40% more than in 2024; about 80% utility-scale.
Reported2025IEA1
FIN · Cost
Installed cost, four-hour utility-scale battery
140USD per kWhabout 30% lower than in 2024.
Reported2025IRENA2
INF · Chemistry
Lithium iron phosphate share of deployments
≈90%IRENA gives about 94% of new installations.
Reported2025IEA1
MIN · Supply
World lithium mine production
290thousand tons31% more than in 2024, excluding the United States.
Reported2025USGS5
MIN · Supply
Share of mined cobalt from the Democratic Republic of the Congo
73%export quotas set for 2026 and 2027.
Reported2025USGS6
INF · National
US utility-scale battery capacity, mid-2026
≈52GW43.6 GW at the end of 2025.
Reported2026EIA3
3.2Domain posture
Each of the twelve coupled domains is read through energy storage, in words, not scored. The coupling column names the dependency that carries energy storage risk into each domain.
| Domain | Posture at baseline | Coupling | Status |
|---|---|---|---|
| WAT | Water use of pumped storage and thermal systems is not bound in this edition. | WAT ↔ ENE | Expert input EQL 1 |
| ENE | The core system: 108 GW added in 2025; solar and storage pairing is now routine. | the core system | Reported EQL 5 |
| FOO | No documented coupling at baseline; cold-chain backup is not evidenced here. | none documented | Expert input EQL 1 |
| HLT | No documented coupling at baseline; backup power for clinics is not evidenced here. | none documented | Expert input EQL 1 |
| BIO | No documented coupling at baseline. | none documented | Expert input EQL 1 |
| CLI | Storage lets solar output reach evening hours; installed batteries shifted about 14% of new solar generation in 2025. | ENE → CLI | Reported EQL 3 |
| INF | Grid infrastructure: 80% of 2025 additions were utility-scale; one 2025 fire is recorded. | ENE ↔ INF | Reported EQL 4 |
| FIN | Installed cost fell about 30% in 2025; investment totals are not bound. | FIN ↔ ENE | Reported EQL 4 |
| DAT | The EU battery passport brings a data record for each industrial battery above 2 kWh from 2027. | ENE → DAT | Reported EQL 3 |
| AIC | Battery-based backup power for data centres rose 30% to 45 GW in 2025; the share tied to compute load is not bound. | AIC → ENE | Reported EQL 3 |
| MIN | Lithium, cobalt and graphite supply is concentrated; lithium prices almost doubled from January 2025 to April 2026. | MIN → ENE | Reported EQL 4 |
| TRD | Export controls on battery supply chains were announced in October 2025; some were suspended until November 2026. | TRD → MIN | Reported EQL 4 |
3.3Sector screens
All sixteen sectors are screened for their dependence on energy storage, on the same grammar as every national edition. The evidence column describes coverage of the baseline evidence, not the performance of the sector.
| Code | Sector | Baseline evidence | Exposure to watch | Evidence coverage |
|---|---|---|---|---|
| GS-00 | Cross-system | storage couples to power, minerals and trade | supply shock during rapid grid dependence | THIN |
| GS-01 | Water | water use of storage not bound | pumped storage siting | THIN |
| GS-02 | Energy | 108 GW added in 20251 | evening peak reliance | GOOD |
| GS-03 | Food | no documented coupling | none documented | THIN |
| GS-04 | Health | no documented coupling | none documented | THIN |
| GS-05 | Finance | installed cost USD 140 per kWh2 | investment totals not bound | PARTIAL |
| GS-06 | Development | access to storage in lower-income markets not bound | widening gaps | THIN |
| GS-07 | Climate | solar shifting 14% of new generation4 | avoided curtailment | PARTIAL |
| GS-08 | Disaster | backup power evidence not bound | none documented | THIN |
| GS-09 | Infrastructure | utility-scale share about 80%1 | fire and siting | PARTIAL |
| GS-10 | Cities | no documented coupling | none documented | THIN |
| GS-11 | Biodiversity | no documented coupling | none documented | THIN |
| GS-12 | Earth observation | no documented coupling | none documented | THIN |
| GS-13 | Cyber and digital | battery passport data from 202710 | data governance | PARTIAL |
| GS-14 | Policy | EU regulation and trade measures810 | export controls and subsidies | GOOD |
| GS-15 | Science | peer-reviewed base on cost and technology383940 | common cost basis | GOOD |
Notes
Numbers are the edition’s reference numbers, so a note reads the same in every chapter. The full list, with every source and its licence, is in Annex C. Annex C, references
- 1IEA (ed.), Global Energy Review 2026, section Technology: Battery storage (108 GW of new battery storage deployed in 2025, 40% more than in 2024; about 80% utility-scale; lithium iron phosphate about 90% of deployments; China about 60% of additions; battery-based UPS additions up 30% to 45 GW). International Energy Agency, Paris. Observation year 2025. Accessed 2026-11-03.back
- 2IRENA (ed.), Renewable Power Generation Costs in 2025, 2026 (installed cost of four-hour utility-scale battery storage about USD 140 per kWh, down close to 30%; total installed cost by storage technology; solar paired with batteries). International Renewable Energy Agency, Abu Dhabi. Observation year 2025. Accessed 2026-11-03.back
- 5USGS (ed.), Mineral Commodity Summaries 2026: Lithium (world mine production 2025, end uses, prices, reserves). US Geological Survey, Reston. Observation year 2025. Accessed 2026-11-03.back
- 6USGS (ed.), Mineral Commodity Summaries 2026: Cobalt (Democratic Republic of the Congo share, export quotas 2026 and 2027, import reliance). US Geological Survey, Reston. Observation year 2025. Accessed 2026-11-03.back
- 3US Energy Information Administration (ed.), Battery storage capacity averaged 70% growth over the last three years, Today in Energy, 7 August 2026 (43.6 GW at the end of 2025; nearly 52 GW at mid-2026; planned additions to 2028). EIA, Washington. Observation year 2026. Accessed 2026-11-03.back
- 4Ember (ed.), Global Electricity Review 2026, 21 April 2026 (battery costs down 45% in 2025 after 20% in 2024; deployment up 46% to an estimated 250 GWh; 14% of new solar generation shifted). Ember, London. Observation year 2025. Accessed 2026-11-03.back
- 10European Parliament and Council, Regulation (EU) 2023/1542 concerning batteries and waste batteries (full text; battery passport from 18 February 2027; safety of stationary battery energy storage systems, Article 12; recycled content targets). Official Journal of the European Union, Luxembourg. Observation year 2023. Accessed 2026-11-03.back
- 8IEA (ed.), Global Critical Minerals Outlook 2026 (revised version, July 2026; concentration of refining, lithium price rise from January 2025 to April 2026, China export controls of 9 October 2025, LFP share of battery energy storage). International Energy Agency, Paris. Observation year 2025. Accessed 2026-11-03.back
- 38UNVERIFIED, not opened: Dunn, B., Kamath, H. and Tarascon, J.-M., Electrical energy storage for the grid: a battery of choices, Science 334, 928 to 935, 2011, cited from memory. Observation year 2011. Accessed 2026-11-03.back
- 39UNVERIFIED, not opened: Schmidt, O. et al., Projecting the future levelized cost of electricity storage technologies, Joule 3, 81 to 100, 2019, cited from memory. Observation year 2019. Accessed 2026-11-03.back
- 40UNVERIFIED, not opened: Albertus, P., Manser, J.S. and Litzelman, S., Long-duration electricity storage applications, economics, and technologies, Joule 4, 21 to 32, 2020, cited from memory. Observation year 2020. Accessed 2026-11-03.back
