BESS · Solární Panely.CZ
Battery passport 2027: new supply and existing installations
Preparing for industrial batteries above 2 kWh, separating different obligations and avoiding the misconception of an automatic ban on older systems.
What starts on 18 February 2027
Regulation (EU) 2023/1542 introduces a battery passport for, among other categories, industrial batteries above 2 kWh placed on the market or put into service from 18 February 2027. The European Commission published updated guidance on passport data on 21 August 2026. Applicability must be assessed against the battery category and its supply-chain circumstances.
A passport is more than a marketing QR code. The responsible operator, battery identification, required information, access and maintenance arrangements need to be established. Commission guidance supports preparation but does not create additional statutory requirements or replace the binding regulation.
An existing installation does not automatically become unlawful
The passport requirement is not a blanket instruction to remove previously operated batteries. Stock, new supplies, replacements, remanufacturing and changed use require examination of the relevant legal event and the parties’ roles. A manufacturing year or “EU stock” label alone is not enough.
Without specific evidence, it is not justified to claim that a brand will fail the requirements. Equally, a generic supplier statement does not answer every obligation for a particular supply. Missing documentation is recorded as an unverified item requiring follow-up.
Passport and due diligence are different obligations
Regulation (EU) 2025/1561 postponed application of the relevant battery due diligence obligations under Article 48 to 18 August 2027. This is not a postponement of the battery passport itself. The material and organisational scope also matters: not every company has identical duties.
Other requirements covering labelling, documentation, safety and end-of-life responsibilities follow their own rules. A marketing phrase such as “EU 2027 ready” is therefore not a complete compliance assessment.
What to request from a BESS supplier
- Precise battery and model identification and the responsible economic operators.
- Conformity documentation and an explanation of applicable legislation.
- The passport implementation process and responsibility for required data.
- Arrangements for changes, replacements and servicing during the lifecycle.
- Contractual treatment of evidence or functions unavailable at handover.
Our technical assessment structures requirements and identifies gaps. A disputed legal interpretation or opinion on a specific transaction requires an appropriately qualified specialist.
Sources and limits
- European Commission — battery passport guidance, 21 August 2026
- Regulation (EU) 2023/1542 — batteries and waste batteries
- Regulation (EU) 2025/1561 — battery due diligence dates
Sources describe their own scope. A general document is not a project-specific certificate or evidence of our own physical test.
Advice before investment
Agree the assessment before choosing equipment.
This is a paid advisory service. Scope, fee, delivery date, named specialists and exclusions are agreed in a written proposal before work begins. Sending an enquiry is not an order or an obligation to purchase equipment.