Tesla Inc.

AC Powerwall 2012170-XX-Y

Legacy PCS · 1 exact configuration · California, US

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A registry listing is a starting point. CEC inclusion is not nationwide installation approval. Confirm the exact model and configuration with your utility and local authority.

How to use this data

Equipment overview

Energy Storage System paired with Tesla Gateway or Backup Switch with Powerwall+ for PCS functionality. May be paired with PV system.

The figures below refer to AC Powerwall 2012170-XX-Y. Use the configuration table for other variants.

Controlled apparent power
5.8 kVA
Operating voltage
240 V
PCS functionality
ESS
Technology
Not reported

Specifications are reported in the CEC source; SolarApprovals has not independently tested this equipment. A missing value does not mean zero or a failed certification.

Exact configurations

CEC annotations in braces identify the listed configuration and are not part of the manufacturer’s model number. Variants share this canonical page.

Exact CEC configurations for AC Powerwall 2012170-XX-Y
CEC model / configurationControlled apparent powerVoltage / displayObservationCompare
AC Powerwall 2012170-XX-YPCS Data for Inverter and ESS row 17175.8 kVA240 VListed in CEC

Source specifications and conditions

Additional source information for AC Powerwall 2012170-XX-Y. Qualifiers, reported control modes and required devices are retained as written. Power-control listings do not establish arbitrary battery/inverter pairings.

Source notes
Compatible with Backup Switch (1624171-XX-Y) when paired with 1850000-XX-Y (Powerwall+). *6.05 seconds is applicable when paired with Powerwall+ (1850000-XX-Y) and Backup Gateway 2 (1232100-XX-Y). 2.8 seconds is applicable when paired with Powerwall+ (1850000-XX-Y) and either Backup Switch (1624171-XX-Y) or Gateway 3 (1841000-XX-Y). 1.95 seconds is applicable when paired with only Backup Gateway 2 (1232100-XX-Y). **9.09 seconds is applicable when paired with Powerwall+ (1850000-XX-Y). 1.96 seconds is applicable when used with Backup Gateway 1 (1118431-XX-Y). 1.76 seconds is applicable when used with Backup Gateway 2 (1232100-XX-Y).
Equipment type
ESS
CEC listing date
2021-02-22
Export-only mode
Y
Import-only mode
Y
No-exchange mode
N
Unrestricted mode
N
Source last update
2026-06-22
Phase configuration
Single
PCS CRD document date
2024-09-19
PCS CRD issuing entity
TUV Rheinland of North America
Additional required devices
For Import Only Mode: Tesla Gateway 1 (1118431-xx-y) or Tesla Gateway 2 (1232100-xx-y) or Backup Switch (1624171- XX-Y) with Powerwall+ (1850000- XX-Y) For Export Only Mode: Tesla Gateway 2 (1232100-xx-y) or Backup Switch (1624171- XX-Y) with Powerwall+ (1850000- XX-Y)
Output voltage as reported (V)
240
Export-only response time (seconds)
6.05*
Import-only response time (seconds)
9.09**
No-exchange response time (seconds)
N/A
Current measurement reference points
For Import Only Mode: Whole home back-up mode: Tesla Gateway or Backup Switch Partial back-up mode: External CT For Export Only Mode: Tesla Gateway 2 and included CTs or Backup Switch
Unrestricted response time (seconds)
N/A
Maximum apparent power as reported (kVA)
5.8
Maximum continuous current as reported (A)
200

Documented compatibility

No specific equipment pairing has been verified for this model.

Shared voltage, a hybrid designation, or the same manufacturer does not establish compatibility. Check the manufacturer’s installation documents for exact model combinations, firmware, and operating conditions.

Registry observation history

Dates show when SolarApprovals observed a status. The first observation is not the original CEC listing date. History begins with our first import.

  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECAC Powerwall 2012170-XX-Y
    Archived CEC source