DYNAPOWER CPS-1500 Gen4

Name: DYNAPOWER CPS-1500 Gen4
Brand: DYNAPOWER

Battery inverter, ac-coupled battery inverter. 2 models, 1,200 kW–1,500 kW AC at 480 V / 600 V.

CEC listed · Oct 21, 2020

Model

Rated AC power1,500 kW
CEC weighted efficiency97.0%

Models & power ratings

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library · 2 models

Model	Nominal AC	Grid voltage	CEC continuous	Rated AC (SAM)	CEC weighted eff.	DC test window	CEC listed	UL 1741 SB
CPS-1500 Gen4	1,200 kW	480 V	1,199.6 kW	1,199.6 kW	96.5%	740–1,500 V	Oct 21, 2020	—
CPS-1500 Gen4	1,500 kW	600 V	1,498.7 kW	1,498.7 kW	97.0%	900–1,500 V	Oct 21, 2020	—

Efficiency

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library

CEC weighted efficiency97.0%
Night-time standby (tare)1,241 W
Power to start converting11,190.4 W

CEC weighted efficiency is measured by an accredited lab at six power levels and three DC voltages — the number to compare between inverters.

Grid & smart-inverter certification

CEC Grid Support Inverter List (Oct 7, 2026)

UL 1741 SB (3rd ed.)No
UL 1741 SA (SA8–SA13)Yes — Intertek
Firmware tested (SA)1500.01.27
Volt-VAr with reactive power priority (SA13)Yes
Freq-Watt / Volt-Watt (SA14–15)Yes
Disable permit service / limit active power (SA17–18)No
CSIP (IEEE 2030.5) conformanceVia gateway during testing (Y*)
Monitor key data & scheduling (Rule 21 Phase 3)No
CEC listedOct 21, 2020
Last CEC updateMar 21, 2024

UL 1741 SB is required for new interconnections in California (Rule 21) since 2026.

About DYNAPOWER

CEC Grid Support Inverter List (Oct 7, 2026)

ManufacturerDYNAPOWER
Listed in CEC asDYNAPOWER COMPANY LLC
Models on CEC lists16

Other series

CPS-2500 Gen5CPS-1250 Gen5MPS-xxxEHV

Questions & answers

How efficient is the DYNAPOWER CPS-1500 Gen4?

The California Energy Commission lists a weighted efficiency of 96.5–97.0% for DYNAPOWER CPS-1500 Gen4 models, measured at six power levels and three DC voltages.

What sizes does the DYNAPOWER CPS-1500 Gen4 come in?

The CEC list includes 2 models from 1,200 kW to 1,500 kW AC: CPS-1500 Gen4, CPS-1500 Gen4.

Is the DYNAPOWER CPS-1500 Gen4 certified to UL 1741 SB?

The CEC list does not show UL 1741 SB certification for these models.

Can the DYNAPOWER CPS-1500 Gen4 be used with a battery?

The CEC lists it as a ac-coupled battery inverter.

What is the CPS-1500 Gen4’s DC input voltage range?

CEC tested it at 900–1,500 V DC.

Sources

California Energy Commission — Grid Support Inverter List (solar and battery inverters), data as of Oct 7, 2026. Manufacturer-reported, confirmed by CEC against certificates and test reports.
NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).