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Illustration · 120 half-cut cells (6 × 20)
Solar panelQcells

Qcells Q.PEAK DUO BLK-G10+ 365

120 half-cut cells (6 × 20). Power classes 350–375 W in the CEC list; datasheet covers 350–370 W.

CEC listed · Mar 1, 2022UL 6173025-yr product + 25-yr performance warrantyPVEL Top Performer 2023Installed in 16 SoCal permits
Power class
  • Power (STC)365 WCEC nameplate
  • Efficiency≥20.3%datasheet minimum
  • %/°C Pmax−0.34CEC test: −0.376
  • Degradation / yr0.5%after year 1 (warranty)

Power classes

CEC PV Module List (Oct 7, 2026) · Qcells datasheet · Cali-Graf calculation · 6 models
ModelPmaxVoc, VIsc, AVmp, VImp, AEfficiencyPTCCEC listed
Q.PEAK DUO BLK-G10+ 350350 W41.1110.9733.7610.37≥19.5%324 WMar 1, 2022
Q.PEAK DUO BLK-G10+ 355355 W41.1411.0034.0310.43≥19.8%329 WMar 1, 2022
Q.PEAK DUO BLK-G10+ 360360 W41.1811.0434.3110.49≥20.1%334 WMar 1, 2022
Q.PEAK DUO BLK-G10+ 365365 W41.2111.0734.5810.56≥20.3%338 WMar 1, 2022
Q.PEAK DUO BLK-G10+ 370370 W41.2411.1034.8410.62≥20.6%343 WMar 1, 2022
Q.PEAK DUO BLK-G10+ 375375 W41.2811.1435.1010.68≈22.6%348 WMar 1, 2022
AC version — Q.PEAK DUO BLK-G10+/AC (360–370 W) ships with a factory-mounted microinverter; it is a separate CEC listing.
≈ efficiency = Pmax ÷ CEC-listed area 1.66 m² for classes outside the datasheet.
CEC note: Formerly listed under Hanwha Q CELLS

Build & dimensions

CEC PV Module List (Oct 7, 2026) · Qcells datasheet

Heat & cold behaviour

Qcells datasheet · CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation
DatasheetCEC listing test
Pmax coefficient γ−0.34 %/°C−0.376 %/°C
Voc coefficient β−0.27 %/°C−0.288 %/°C
Isc coefficient α+0.04 %/°C+0.050 %/°C
Vmp coefficient≈ −0.38 %/°C—
Operating cell temperatureNMOT 43 ± 3 °CNOCT 45.9 °C
Vmp coefficient ≈ γ − α (datasheet); used only for the hot-roof voltage estimate.

At normal operating conditions (NMOT, 800 W/m²) — datasheet

ClassPmax, WVoc, VIsc, AVmp, VImp, A
350 W262.638.778.8432.248.14
355 W266.338.808.8732.488.20
360 W270.138.838.8932.718.26
365 W273.838.868.9232.948.31
370 W277.638.908.9533.178.37

Away from lab conditions — CEC listing test points

ClassPmax at NOCTVmp × Imp at NOCTPmax at 200 W/m²Low-light efficiency vs STC
350 W253.3 W30.84 V × 8.21 A66.1 W94%
355 W256.8 W31.08 V × 8.26 A67.1 W94%
360 W260.4 W31.34 V × 8.31 A68 W94%
365 W264.2 W31.59 V × 8.37 A69 W95%
370 W267.7 W31.82 V × 8.41 A69.9 W94%
375 W271.3 W32.06 V × 8.46 A70.8 W94%
Pmax = Vmp × Imp from the CEC listing; low-light efficiency = Pmax at 200 W/m² ÷ (20% of STC Pmax).

Electrical & strength ratings

Certifications

CEC PV Module List (Oct 7, 2026) · Qcells datasheet
UL 61730IEC 61215IEC 61730Fire rating Type 2 (UL 61730)

Warranty & degradation

Qcells datasheet
80%85%90%95%100%051015202586% yr 25years
Straight line from 100% to the end-of-warranty value — linear, per datasheet.
  • Product warranty25 years
  • Performance warranty25 years, linear
  • Then≤ 0.5% / year
  • Year 25≥ 86%

Independent reliability testing

Kiwa PVEL Scorecard · RETC PV Module Index
2023
PVEL Top Performer
this series
2
Tests passed as Top Performer
LID+LETID, PID
11
PVEL Scorecards
Qcells named Top Performer, 2016–2026
2023, 2026
RETC Overall Highest Achiever
Qcells, manufacturer level

PVEL Top Performer tests

YearProductTests
2023Q.PEAK DUO BLK-G10+LID+LETIDPID

Tested bill of materials

Details describe the tested sample, not every module of the series.

RETC PV Module Index — Qcells

YearRecognition
2023Overall Highest Achiever; High Achievement in Performance (Module efficiency, Pan file performance); High Achievement in Reliability (Damp heat test, Pid resistance, Thermal cycle test)
2024High Achievement in Performance
2025Performance High Achiever
2026Overall Highest Achiever; High achievement in performance; High achievement in reliability; Performance discipline high achiever (Conversion efficiency, Iam, Letid, Lid, PTC-to-STC, Temperature coefficient); Quality discipline high achiever (BOM verification); Reliability discipline high achiever (Sdml, Tc, Uvid, Budt, Damp heat, Hdt, Pid)

Inverter compatibility & string sizing

Qcells datasheet · Cali-Graf calculation · NLR PVWatts v8 · CEC PV Module List (Oct 7, 2026) · inverter datasheets · NLR SAM inverter library · CEC Grid Support Inverter List (Oct 7, 2026)
43.8 V
Voc when cold
per panel
28.1 V
Vmp when hot
per panel
13
Max panels / string
max DC 600 V
3
Min panels / string
MPPT from 60 V
Defaults come from NLR TMY weather (coldest hour, hottest modeled cell). Code calculations (NEC 690.7) use the ASHRAE extreme annual minimum, which is usually colder — enter it above.

String inverters most named in SoCal permits

InverterMax DC inputMPPTWindow sourcePanels per string
Tesla 1538000-xx-y600 V60–480 Vdatasheet3–13
Solis (Ginlong) S6-EH1P10K-H-US600 V80–520 Vdatasheet3–13
Solis (Ginlong) Solis-1P7.6K-4G-US600 V100–500 Vdatasheet4–13
Qcells Q.VOLT H7.6SX498 V234–498 VCEC test window9–11

Microinverters (one per panel)

MicroinverterRecommended module powerMax DC inputMPPTVoc cold / Vmp hotCheckDC/AC
Enphase IQ8PLUS-72-2-US235–440 W60 V29–45 V43.8 / 28.1 V⚠ Works; below MPPT at peak heat1.26
Enphase IQ8X-80-M-US320–540 W79.5 V43–60 V43.8 / 28.1 V✗ Not a match: module voltage below MPPT range0.96
APsystems (Alt Power System) DS3-L265–570 W60 V28–45 V43.8 / 28.1 V✓ Within range0.47
Enphase IQ8M-72-2-US260–460 W60 V30–45 V43.8 / 28.1 V⚠ Works; below MPPT at peak heat1.12
Enphase IQ8A-72-2-US295–500 W60 V32–45 V43.8 / 28.1 V⚠ Works; below MPPT at peak heat1.05
Voltage check against the microinverter datasheets — confirm the pairing on the manufacturer’s module compatibility list. Rows appear only when the panel’s power is inside the microinverter’s recommended module power range.
SolarEdge and other optimizer-based systems size strings by the optimizer rules — use the manufacturer’s designer. Reference inverters: most named in SoCal permits since Oct 2024.

Expected production in Southern California

NLR PVWatts v8 · Cali-Graf calculation
CitykWh / kW / yrkWh / panel / yrkWh / system / yrSun, kWh/m²/day
Los Angeles1,67661211,6236.08
Palmdale1,83567012,7266.69
Chula Vista1,69661911,7626.11
Huntington Beach1,64360011,3945.89
Riverside1,69661911,7626.21
Santa Clarita1,72462911,9566.28
759Jan759Feb974Mar1,076Apr1,063May1,130Jun1,190Jul1,204Aug1,053Sep929Oct798Nov691DeckWh per month · Los Angeles
Estimate for comparison, not a quote: shading, roof orientation and local losses change real output. Roof mount, 20° tilt, south, 14% system losses.

Who installs Q.PEAK DUO BLK-G10+ panels in SoCal

building permits
16
Permits naming this series
Mar 2022 – May 2025
1
Jurisdictions so far
LA County (unincorp.) (16)

Permits over time

2Q1 ’224Q2 ’221Q3 ’222Q4 ’221Q1 ’230Q2 ’230Q3 ’230Q4 ’230Q1 ’240Q2 ’240Q3 ’242Q4 ’240Q1 ’254Q2 ’25permits per quarter

Power class named in permit

365 W
8
360 W
6
350 W
2

Top ZIP codes

  • ZIP 907133
  • ZIP 917442
  • ZIP 910012
  • ZIP 913812
  • Other ZIP codes7

Typical system

median 7.3 kW, 16 panels (n = 13)

Only installer and ZIP level is shown — no homeowner names, street addresses or permit numbers. Permits from LA County (unincorp.) come without a contractor license, so they count toward totals but not toward installers. Counts grow as more permit portals are loaded.

Installed together with

building permits

Microinverters

Enphase IQ7
4
Enphase IQ8+
3
Enphase IQ8H
2

Inverters

SolarEdge SE…H (HD-Wave)
5

Optimizers

SolarEdge Power Optimizer
5

Batteries

Enphase IQ Battery 5P
4
Number of permits naming both this panel series and the product; 16 of 16 permits list other equipment.

Other versions of this panel

CEC PV Module List (Oct 7, 2026)
Qcells Q.PEAK DUO BLK-G10+/AC
AC / DC version · 360–370 W · listed 2022
Qcells Q.PEAK DUO BLK-G10.a+
Same product line · 350–375 W · listed 2022

Compare with similar 365 W panels

CEC PV Module List (Oct 7, 2026) · Kiwa PVEL Scorecard · building permits
PanelPmaxEfficiencyγ Pmax (CEC)Voc, VIsc, APVEL (product / brand)SoCal permits (series)
Qcells Q.PEAK DUO BLK-G10+ 365365 W≥20.3%−0.37641.2111.07product 202316
LONGi LR4-60HPB-365M365 W≈20.6%−0.3394111.41product 2021, 2022193
REC Group REC365AA365 W≈21.7%−0.27944.310.26brand 9× (2016–2025)30
Trina Solar TSM-365DE06X.05(II)365 W≈20.1%−0.3394510.35product 202223
Same fields from the same sources for every row; ≈ efficiency is calculated from the listed area. Comparable series: other brands, same product group, power range covering this class.

About Qcells

CEC PV Module List (Oct 7, 2026) · Kiwa PVEL Scorecard · RETC PV Module Index · building permits

Other series by SoCal permits

Q.PEAK DUO BLK ML-G10+ · 221Q.PEAK DUO BLK ML-G10.C+ · 124Q.TRON BLK M-G2+ · 40Q.TRON BLK M-G2.H+ · 33Q.TRON BLK M-G2.C+ · 24Q.TRON M-G2+ · 20

Questions & answers

How efficient is the Qcells Q.PEAK DUO BLK-G10+ 365?

The Qcells datasheet guarantees at least 20.3% module efficiency for the 365 W class (up to 20.6% for 370 W). 365 W over 1.66 m² equals about 220 W per square meter.

How much energy does one panel produce in Los Angeles or Palmdale?

PVWatts v8 with typical-year weather gives about 612 kWh per year per 365 W panel in Los Angeles and about 670 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.34 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 17.6% below the STC rating.

How many panels fit on one string?

With the Tesla 1538000-xx-y (max DC 600 V, MPPT from 60 V, datasheet) in Los Angeles the calculator gives 3–13 panels per string (Voc at 2 °C = 43.8 V, Vmp at 74 °C cell = 28.1 V). Final design must follow the inverter manual and NEC 690.7.

Does it work with APsystems (Alt Power System) DS3-L microinverters?

Voltage check against the APsystems (Alt Power System) datasheet: Voc when cold 43.8 V vs max input 60 V; Vmp when hot 28.1 V vs MPPT low 28 V; recommended module power 265–570 W. Confirm on the microinverter maker’s compatibility list.

What does the warranty cover?

25 years on the product and 25 years linear on performance: at least 86% after 25 years (manufacturer datasheet).

Has this panel been reliability-tested?

Q.PEAK DUO BLK-G10+ was a PVEL Top Performer in 2023 (LID+LETID, PID).

What fire rating does it have?

UL 61730 fire rating Type 2 per datasheet.

Sources

  1. California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
  2. Qcells — manufacturer datasheet “Q.PEAK DUO BLK-G10+ ENDURING HIGH PERFORMANCE” (preliminary).
  3. Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists 2016–2026.
  4. RETC — PV Module Index reports 2023–2026.
  5. NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).
  6. NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Chula Vista, Huntington Beach, Riverside, Santa Clarita.
  7. Inverter datasheets — APsystems (Alt Power System), Enphase, Solis (Ginlong), Tesla (manufacturer documents).
  8. Building permits — Los Angeles County Public Works (EPIC-LA, unincorporated areas) (Mar 2022 – May 2025). Equipment matched from permit descriptions by model number.
  9. Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).