CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library · 4 models
Model
Nominal AC
Grid voltage
CEC continuous
Rated AC (SAM)
CEC weighted eff.
DC test window
CEC listed
UL 1741 SB
Solaria PowerXT-395R-PM-AC
395 W
240 V
349 W
349 W
97.0%
38–43 V
Jun 1, 2020
—
Solaria PowerXT-400R-PM-AC
400 W
240 V
349 W
349 W
97.0%
38–43 V
Jun 1, 2020
—
Solaria PowerXT-410R-PM-AC
410 W
240 V
349 W
349 W
97.0%
38–43 V
Jun 1, 2020
—
Solaria PowerXT-420R-PM-AC
420 W
240 V
349 W
349 W
97.0%
38–43 V
Jun 1, 2020
—
4 more listings are microinverters sold only inside AC modules — not shown here.
DC input (PV side)
CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library
CEC test DC voltages (min / nom / max)38 / 40 / 43 V
DC input at rated output (CEC test)361 W
Efficiency
CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library
CEC weighted efficiency97.0%
Night-time standby (tare)0.02 W
Power to start converting1.8 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 — UL
Firmware tested (SA)V04.18.02
Volt-VAr with reactive power priority (SA13)Yes
Freq-Watt / Volt-Watt (SA14–15)Yes
Disable permit service / limit active power (SA17–18)Yes
CSIP (IEEE 2030.5) conformanceVia gateway during testing (Y*)
Monitor key data & scheduling (Rule 21 Phase 3)Yes (attested Jun 1, 2020)
CEC listedJun 1, 2020
UL 1741 SB is required for new interconnections in California (Rule 21) since 2026.
Compare with similar 410 W inverters
CEC Grid Support Inverter List (Oct 7, 2026) · building permits
Inverter
Power
CEC weighted eff.
DC test window
UL 1741 SB
Latest CEC
SoCal permits
Solaria Solaria PowerXT-xxxR-PM-AC
395 W–420 W
97.0%
38–43 V
—
2020
0
Enphase Energy IQ8 Series
240 W–633 W
97.5%
25–95 V
44 of 45
2025
1,104
Enphase Energy IQ7 Series
190 W–384 W
97.5%
22–64 V
114 of 119
2022
471
Hoymiles HM-xxxNT
295 W–1.44 kW
96.5%
29–48 V
11 of 12
2023
3
Enphase Energy IQ9 Series
405 W–440 W
97.5%
28–45 V
Yes
2026
—
Same type and grid voltage, power range covering this model; same fields from the same sources.
About Solaria
CEC Grid Support Inverter List (Oct 7, 2026)
ManufacturerSolaria
Listed in CEC asSolaria Corporation
Websitesolaria.com
Models on CEC lists54
Questions & answers
How efficient is the Solaria Solaria PowerXT-xxxR-PM-AC?
The California Energy Commission lists a weighted efficiency of 97.0% for Solaria Solaria PowerXT-xxxR-PM-AC models, measured at six power levels and three DC voltages.
What sizes does the Solaria Solaria PowerXT-xxxR-PM-AC come in?
The CEC list includes 4 models from 395 W to 420 W AC: Solaria PowerXT-395R-PM-AC, Solaria PowerXT-400R-PM-AC, Solaria PowerXT-410R-PM-AC, Solaria PowerXT-420R-PM-AC.
Is the Solaria Solaria PowerXT-xxxR-PM-AC certified to UL 1741 SB?
The CEC list does not show UL 1741 SB certification for these models.
What is the Solaria PowerXT-410R-PM-AC’s DC input voltage range?
CEC tested it at 38–43 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).
Building permits — Southern California permit portals. Equipment matched from permit descriptions.
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