The battery passport for energy storage.
The industrial battery passport is the electronic record that the EU Battery Regulation (EU) 2023/1542 requires, from 18 February 2027, for every industrial battery over 2 kWh placed on the EU market, including stationary energy storage.
Grid-scale and commercial energy storage runs on exactly the batteries Article 77 covers: industrial batteries above 2 kWh. From 18 February 2027 they need passports — and because storage is where retired EV packs go for a second life, storage integrators inherit the Article 77(7) linked-passport problem more than anyone else in the chain.
Battery passport for energy storage, in three facts.
Reg. (EU) 2023/1542 · industrial batteries >2 kWh in Article 77 scope · from 18 February 2027 · second-life linkage under Art 77(7).
From 18 February 2027 every light-means-of-transport battery, every EV battery and every industrial battery over 2 kWh placed on the EU market needs a battery passport (Regulation (EU) 2023/1542, Article 77).
Source: Regulation (EU) 2023/1542The Commission's battery passport guidance, updated on 21 August 2026, lists 71 data points and marks each one mandatory, voluntary, conditional or not yet required.
Source: Brussels Times, August 2026The EU battery supply-chain due diligence obligations were postponed in July 2025 and apply from 18 August 2027.
Source: Council of the EU, 18 July 2025
A passport that lives as long as the asset does.
Passports for >2 kWh industrial batteries
Composition, capacity, expected lifetime and performance data, QR-accessible — for each battery placed on the EU market from the date.
Longitudinal telemetry
Annex XIII expects state-of-health and operating data over time. A 15-year storage asset needs a passport platform, not a shipping label.
Second-life genealogy
Racks built from repurposed EV modules need new passports linked to every donor pack's passport — Article 77(7)'s many-to-one requirement lands hardest on storage.
Module-level identity inside the rack
Modules get replaced across a storage system's life. Identity at module level is what keeps the passport truthful after year three's first swap-outs.
The timeline, as it stands.
Storage projects commissioning after February 2027 will procure passported batteries; projects using second-life modules need genealogy from donors that retire before then. Procurement teams feel this before compliance teams do.
Three moves that de-risk the deadline.
Put passports into procurement specs
BESS integrators buying cells and modules for 2027 delivery should require passport data readiness in supplier contracts today.
Solve module identity before rack assembly
Tag modules at intake — new or harvested — so the system passport assembles from evidence, not spreadsheets.
Design the telemetry hand-off
Decide how BMS data reaches the passport record. Annex XIII's operating-data expectations assume that pipe exists.
From donor pack to grid rack, one chain of custody.
Aeroz gives packs and modules chip-bound identities with custody written as EPCIS 2.0 events — harvest, test, rebuild, commission, swap. The storage system's passport links to its donors because the log proves it, and every module in the rack can be verified with a tap for the life of the asset.
Battery passport for energy storage, answered.
Which storage batteries need passports?
Industrial batteries with capacity above 2 kWh placed on the EU market from 18 February 2027 — which covers essentially all commercial and grid-scale storage units.
How does this interact with second-life modules?
Directly: a repurposed battery needs a new passport linked to the original passports under Article 77(7). Storage is the main destination for retired EV packs, so integrators own this problem.
Does the BMS satisfy the passport requirement?
No — the BMS is a data source, not the passport. The passport is a regulated, QR-accessible record with defined content; a well-designed system feeds it from the BMS.
What happens when modules are replaced in service?
The passport should reflect the battery as it exists. Module-level identity makes replacements an append to the record rather than a divergence from it.
From the Aeroz blog
- Almost all DPP Deadline Dates Have Been Solidified.
- The EU Battery Mandate Clock is Ticking…Are You Even Prepared?
More answers: EU battery passport questions in the compliance FAQ
Know exactly where you stand — in 14 days.
A fixed-fee Aeroz audit maps your products against battery passport for energy storage requirements and returns a written readiness assessment, a data-mapping review, and a scoped pilot plan with cost and timeline.