UL 9540 certifies the whole storage system; UL 9540A is the fire-propagation test that fire codes ask for indoors and near walls.
California grid & code compliance
CEC Energy Storage System List
UL 1741 SB (IEEE 1547-2018)Yes
UL 1741 SA (Rule 21)No
CSIP (IEEE 2030.5)Yes (with conditions)
JA12 declaration (Title 24)No
CEC noteTensorpack A is only capable of importing power from the grid. The model is designed to strictly discharge power to the local loads connected to the system.
Monitor Key Data schedulingYes
Questions & answers
How much energy does the Teplore Tensorpack A store?
279 kWh nameplate, per the California Energy Commission list.
Is the Tensorpack A UL 9540 certified?
Yes — the CEC list shows UL 9540 certification (certified by intertek).
Sources
California Energy Commission — Energy Storage System List, data as of Oct 7, 2026. Manufacturer-reported values confirmed by CEC against certificates.
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