Tesla Powerpack 2 system

Name: Tesla Powerpack 2 system
Brand: Tesla

223–232 kWh · 58–111.5 kW · Lithium Ion · 2 configurations

UL 9540CEC listed · Jul 13, 2020

Overview

CEC Energy Storage System List

Powerpack 2 system: 223–232 kWh nameplate energy; 58–111.5 kW continuous; lithium ion.

CEC Energy Storage System List · 2 listings

Model	Energy	Power	Grid voltage	Round trip	CEC listed
Powerpack 2 system {2hr}	223 kWh	70 kW	480 V	—	Jul 13, 2020
Powerpack 2 system {4hr}	232 kWh	70 kW	480 V	—	Jul 13, 2020

CEC Energy Storage System List

CEC Energy Storage System List

UL 9540 certifies the whole storage system; UL 9540A is the fire-propagation test that fire codes ask for indoors and near walls.

CEC Energy Storage System List

UL 1741 SB (IEEE 1547-2018)No
UL 1741 SA (Rule 21)Yes
CSIP (IEEE 2030.5)Yes (with conditions)
JA12 declaration (Title 24)No
CEC noteThe Powerpack System scales from 100 kWh+ to 100 MWh+. A single Powerpack can consist from 1 to 10 inverters and from 1 to 20 battery pods.
Last CEC updateDec 21, 2020
Monitor Key Data schedulingYes

How much energy does the Tesla Powerpack 2 system store?

223–232 kWh nameplate, per the California Energy Commission list.

Is the Powerpack 2 system UL 9540 certified?

Yes — the CEC list shows UL 9540 certification (certified by tuv rheinland of north america).

California Energy Commission — Energy Storage System List, data as of Oct 7, 2026. Manufacturer-reported values confirmed by CEC against certificates.