Independent field-performance evidence for sodium-ion stationary BESS is established.

What is established

• The product was publicly launched and showcased
• Manufacturer-attributed performance and field-validation language exists

What is not established

• Independent field measurements
• Attributable operating duration and conditions
• Independent safety or performance validation

What would change this

Attributable independent field-operation or performance evidence collected after commissioning at a named stationary sodium-ion BESS. It should identify the responsible operator or third party, site and system, commissioning status, observation period, operating conditions, and method. Evidence may report one or more relevant measures—such as operating duration, availability, delivered capacity or energy, degradation, cycle history, or reliability; all measures are not required at once.

Qualifying boundary

Examples that may qualify

• Independent post-commissioning field report with attributable methods
• Operator record reporting operating duration, availability, delivered capacity or energy, degradation, cycle history, or reliability
• Regulator or research-institute field evaluation tied to a named commissioned system

Examples that do not qualify

• Manufacturer brochure or generic product specification
• Lab-only test or simulation
• Planned deployment
• Shipment without commissioning
• Unattributed performance chart