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Battery inverterCanadian Solar

Canadian Solar CSEC-215K-T6901A-U

Battery inverter, ac-coupled battery inverter. 2 models, 200 kW–215 kW AC at 690 V.

UL 1741 SBCEC listed · Jun 23, 2025
Model
  • Rated AC power215 kW
  • CEC weighted efficiency98.5%

Models & power ratings

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library · 2 models
ModelNominal ACGrid voltageCEC continuousRated AC (SAM)CEC weighted eff.DC test windowCEC listedUL 1741 SB
CSEC-200K-T6901A-U200 kW690 V200.7 kW200.7 kW98.5%1,000–1,500 VJun 23, 2025SB
CSEC-215K-T6901A-U215 kW690 V215.9 kW215.9 kW98.5%1,000–1,500 VJun 23, 2025SB

Efficiency

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library
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 is required for new interconnections in California (Rule 21) since 2026.

About Canadian Solar

CEC Grid Support Inverter List (Oct 7, 2026)

Documents

manufacturer documents

Questions & answers

How efficient is the Canadian Solar CSEC-xxxK-T6901A-U?

The California Energy Commission lists a weighted efficiency of 98.5% for Canadian Solar CSEC-xxxK-T6901A-U models, measured at six power levels and three DC voltages.

What sizes does the Canadian Solar CSEC-xxxK-T6901A-U come in?

The CEC list includes 2 models from 200 kW to 215 kW AC: CSEC-200K-T6901A-U, CSEC-215K-T6901A-U.

Is the Canadian Solar CSEC-xxxK-T6901A-U certified to UL 1741 SB?

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

Can the Canadian Solar CSEC-xxxK-T6901A-U be used with a battery?

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

What is the CSEC-215K-T6901A-U’s DC input voltage range?

CEC tested it at 1,000–1,500 V DC.

Sources

  1. 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.
  2. Canadian Solar — document library on the manufacturer’s website (links above).
  3. NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).