DYNAPOWER CPS-1250 Gen5

Name: DYNAPOWER CPS-1250 Gen5
Brand: DYNAPOWER

Battery inverter, ac-coupled battery inverter. 6 models, 584 kW–2,666 kW AC at 350 V / 415 V / 480 V / 600 V / 690 V / 800 V.

UL 1741 SBCEC listed · Dec 11, 2024

Model

Rated AC power1,002 kW
CEC weighted efficiency98.5%

Models & power ratings

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library · 6 models

Model	Nominal AC	Grid voltage	CEC continuous	Rated AC (SAM)	CEC weighted eff.	DC test window	CEC listed	UL 1741 SB
CPS-1250 Gen5	584 kW	350 V	582.5 kW	582.5 kW	97.5%	530–1,500 V	Mar 21, 2025	SB
CPS-1250 Gen5	693 kW	415 V	691.2 kW	691.2 kW	98.0%	630–1,500 V	Mar 21, 2025	SB
CPS-1250 Gen5	800 kW	480 V	799.6 kW	799.6 kW	98.0%	800–1,500 V	Dec 11, 2024	SB
CPS-1250 Gen5	1,002 kW	600 V	999.6 kW	999.6 kW	98.5%	900–1,500 V	Mar 21, 2025	SB
CPS-1250 Gen5	2,300 kW	690 V	1,146.1 kW	1,146.1 kW	98.5%	1,020–1,500 V	Mar 21, 2025	SB
CPS-1250 Gen5	2,666 kW	800 V	1,294.2 kW	1,294.2 kW	99.0%	1,020–1,500 V	Mar 21, 2025	SB

Efficiency

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

CEC weighted efficiency98.5%
Night-time standby (tare)2,400 W
Power to start converting1,600 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.)Yes — TUV Rheinland of North America, certificate Dec 9, 2024
UL 1741 SA (SA8–SA13)No
Volt-VAr with reactive power priority (SA13)No
Freq-Watt / Volt-Watt (SA14–15)No
Disable permit service / limit active power (SA17–18)No
CSIP (IEEE 2030.5) conformanceNo
Monitor key data & scheduling (Rule 21 Phase 3)No
CEC listedDec 11, 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 Gen5MPS-xxxEHVCPS-1500 Gen4

Questions & answers

How efficient is the DYNAPOWER CPS-1250 Gen5?

The California Energy Commission lists a weighted efficiency of 97.5–99.0% for DYNAPOWER CPS-1250 Gen5 models, measured at six power levels and three DC voltages.

What sizes does the DYNAPOWER CPS-1250 Gen5 come in?

The CEC list includes 6 models from 584 kW to 2,666 kW AC: CPS-1250 Gen5, CPS-1250 Gen5, CPS-1250 Gen5, CPS-1250 Gen5, CPS-1250 Gen5, CPS-1250 Gen5.

Is the DYNAPOWER CPS-1250 Gen5 certified to UL 1741 SB?

Yes — the CEC Grid Support Inverter List shows UL 1741 SB for all models.

Can the DYNAPOWER CPS-1250 Gen5 be used with a battery?

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

What is the CPS-1250 Gen5’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).