SPITZER ENERGY SPZ 12KW-ESS-B

Name: SPITZER ENERGY SPZ 12KW-ESS-B
Brand: SPITZER ENERGY

30.7 kWh · Lithium Iron Phosphate · direct PV input · 2 configurations

UL 9540UL 1741 SBCEC listed · Jun 2, 2025

Overview

CEC Energy Storage System List

SPZ 12KW-ESS-B: 30.7 kWh nameplate energy; lithium iron phosphate; accepts solar panels directly (DC-coupled).

CEC Energy Storage System List · 2 listings

Model	Energy	Power	Grid voltage	Round trip	CEC listed
SPZ 12KW-ESS-B {208V}	30.7 kWh	8 kW	208 V	—	Jun 2, 2025
SPZ 12KW-ESS-B {240V}	30.7 kWh	8 kW	240 V	—	Jun 2, 2025

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

How much energy does the SPITZER ENERGY SPZ 12KW-ESS-B store?

30.7 kWh nameplate, per the California Energy Commission list.

Is the SPZ 12KW-ESS-B UL 9540 certified?

Yes — the CEC list shows UL 9540 certification (certified by sgs).

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