The battery passport for energy storage.
Home, commercial or container — anyone placing BESS over 2 kWh on the EU market is subject to the passport requirement from 18 February 2027. Batteriepasswerk generates EU-compliant passports per rack and module, with carbon-footprint declaration, Annex X and multi-level bill of materials.
Six realities that make the BESS business hard to plan.
Cells, modules, racks and containers nest into one another. Mandatory fields apply per sales unit — at the right level each time.
Cell data, datasheets and certificates arrive from China, Korea, Japan and Europe. Format and completeness vary by supplier.
A BESS lives 10–20 years. The passport must outlast that — version-stable, with audit trail and a clean handover into reuse.
LCA values per functional unit, performance classes, annual updates. Without structured handling, this becomes an Excel nightmare.
Cobalt, lithium, nickel and natural graphite — due diligence from 18.08.2027. Risks must be documented along the chain.
Engraved on housings, possibly with a different resolver later — the URL must stay stable. GS1 Digital Link delivers that.
What the regulation requires from BESS placers on the market.
Digital passport per unit
Unique identifier, QR per GS1 Digital Link, mandatory fields per Annex XIII — per placed-on-market unit (module, rack, container).
Deadline 18.02.2027Carbon-footprint declaration
LCA value per functional unit, performance class, annual update. Version-stable, retrievable in the passport.
From 2026/2027, stagedSupply-chain due diligence
Risk-based due diligence for cobalt, lithium, nickel and natural graphite — across all supplier tiers, documented in the passport.
Deadline 18.08.2027From cell to site — one passport per placed-on-market unit.
BESS manufacturers sell at module, rack or system level depending on the business model. Batteriepasswerk models the bill of materials at all four levels and automatically generates exactly the passports the EU Battery Regulation requires for each sales unit.
Three building blocks that make the difference in BESS portfolios.
Multi-level BOM, inherited automatically
Define the BOM once per model. Master and material data are inherited into every rack and container unit — no double handling, no drift.
Capture certificates via OCR
Supplier certificates by drag-and-drop. Material, safety and capacity data is detected, validated and written into the passport data model.
Audit trail across a 20-year lifetime
Every change versioned, every version permanently retrievable. EU hosting in Germany, role-based access for recyclers, authorities and owners.
In the dashboard: readiness per rack, per site.
This is what a BESS portfolio looks like in Batteriepasswerk — sorted by passport readiness, jump straight into the rack passport.
For BESS portfolios: Pro or Scale.
Up to ~5,000 active passports and several models fit in the Pro tier. For API/ERP integration, higher volumes and SLAs, we recommend Scale.
What storage manufacturers ask most.
Ready for 2027? Build your first rack passport for free.
Create a model, maintain the BOM, ship your first QR code — in under an hour. No IT project, no setup fees.