Give storage owners a real door into their own battery data

They're related but distinct duties. The Battery Regulation's passport and durability/performance disclosure requirements are about publishing standardized information tied to a specific battery model or unit, largely aimed at larger batteries and aimed at transparency across the supply chain. The Data Act is a separate, ongoing right for the owner — and any third party they choose — to access and export their own installation's operational data on request. A compliance plan needs both, and shouldn't assume one satisfies the other.

Yes, generally, provided the system owner is the one directing the sharing and the aggregator isn't a Digital Markets Act gatekeeper. Virtual power plant participation depends on exactly this kind of data flow — SOC, SOH and energy-flow data routed from the owner's storage system to the aggregator managing dispatch — so this is one of the more common and legitimate Article 5 use cases for residential and commercial storage.

The models themselves can be, through the Act's structured trade-secret process. The underlying SOH, cycle-count and charge/discharge readings that feed those models are a different matter — they're the operational data the owner is entitled to, independent of whatever proprietary degradation forecast the vendor builds on top of them.

The Data Act's user definition extends to lessees and renters for the duration of their agreement, not just the registered owner. A financed or leased storage system needs an entitlement model that follows the finance or lease term, with a clear handoff at end of term so access doesn't outlive the agreement or lag behind it.

Only where continuous delivery is both relevant to the request and technically feasible, and it must match the quality already available to the data holder. If your platform already streams SOC and power flow in near-real-time internally, a compliant export should offer that same cadence; if it only refreshes periodically, periodic export can be a compliant answer too.

Yes, if the installer operates the monitoring platform that actually receives and can make the data available — which is common where a storage system is monitored through the installer's own portal rather than the cell manufacturer's cloud. Settle this in the OEM-installer supply relationship, including who publishes pre-contract data disclosures, rather than leaving it ambiguous.