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Solar panelJiangsu Xiehang New Energy Int…

Jiangsu Xiehang New Energy Intelligent Equipment FE60-166M 370

120 half-cut cells. Power classes 355–390 W in the CEC list.

CEC listed · Sep 12, 2022UL 61730
Power class
  • Power (STC)370 WCEC nameplate
  • Efficiency≈20.3%calculated from area
  • %/°C Pmax−0.310CEC listing test
  • PTC / STC93.6%PTC 346 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 8 models
ModelPmaxVoc, VIsc, AVmp, VImp, AEfficiencyPTCCEC listed
FE60-166M-355355 W40.9011.4333.5010.61≈19.5%332 WSep 12, 2022
FE60-166M-360360 W41.1011.5333.7010.69≈19.8%337 WSep 12, 2022
FE60-166M-365365 W41.3011.6333.9010.77≈20.1%342 WSep 12, 2022
FE60-166M-370370 W41.5011.7234.1010.86≈20.3%346 WSep 12, 2022
FE60-166M-375375 W41.6011.8534.2010.98≈20.6%351 WSep 12, 2022
FE60-166M-380380 W41.7011.9834.3011.09≈20.9%356 WSep 12, 2022
FE60-166M-385385 W41.8012.1234.4011.20≈21.2%361 WSep 12, 2022
FE60-166M-390390 W41.9012.2534.5011.31≈21.4%366 WSep 12, 2022
≈ efficiency = Pmax ÷ CEC-listed area 1.82 m².

Build & dimensions

CEC PV Module List (Oct 7, 2026)

Heat & cold behaviour

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation
CEC listing test
Pmax coefficient γ−0.310 %/°C
Voc coefficient β−0.239 %/°C
Isc coefficient α+0.043 %/°C
Operating cell temperatureNOCT 46.6 °C
Vmp coefficient ≈ γ − α (CEC); used only for the hot-roof voltage estimate.

Away from lab conditions — CEC listing test points

ClassPmax at NOCTVmp × Imp at NOCTPmax at 200 W/m²Low-light efficiency vs STC
355 W269.8 W27.42 V × 9.84 A69.8 W98%
360 W273.4 W27.58 V × 9.91 A70.8 W98%
365 W277.1 W27.75 V × 9.99 A71.7 W98%
370 W281.1 W27.91 V × 10.07 A72.8 W98%
375 W285 W27.99 V × 10.18 A73.8 W98%
380 W288.7 W28.08 V × 10.28 A74.7 W98%
385 W292.4 W28.16 V × 10.38 A75.7 W98%
390 W296.1 W28.24 V × 10.49 A76.7 W98%
Pmax = Vmp × Imp from the CEC listing; low-light efficiency = Pmax at 200 W/m² ÷ (20% of STC Pmax).

Inverter compatibility & string sizing

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · NLR PVWatts v8 · inverter datasheets · NLR SAM inverter library · CEC Grid Support Inverter List (Oct 7, 2026)
43.8 V
Voc when cold
per panel
28.2 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. β is the CEC-measured coefficient; NEC 690.7 calculations use the datasheet value.

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 / 28.2 V⚠ Works; below MPPT at peak heat1.28
Enphase IQ8X-80-M-US320–540 W79.5 V43–60 V43.8 / 28.2 V✗ Not a match: module voltage below MPPT range0.97
APsystems (Alt Power System) DS3-L265–570 W60 V28–45 V43.8 / 28.2 V✓ Within range0.47
Enphase IQ8M-72-2-US260–460 W60 V30–45 V43.8 / 28.2 V⚠ Works; below MPPT at peak heat1.14
Enphase IQ8A-72-2-US295–500 W60 V32–45 V43.8 / 28.2 V⚠ Works; below MPPT at peak heat1.06
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 Angeles1,67662011,7826.08
Palmdale1,83567912,9006.69
Chula Vista1,69662811,9236.11
Huntington Beach1,64360811,5505.89
Riverside1,69662811,9236.21
Santa Clarita1,72463812,1206.28
769Jan770Feb988Mar1,091Apr1,078May1,145Jun1,206Jul1,220Aug1,067Sep941Oct809Nov700DeckWh 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.

Compare with similar 370 W panels

CEC PV Module List (Oct 7, 2026) · Kiwa PVEL Scorecard · Canadian Solar datasheet · building permits
PanelPmaxEfficiencyγ Pmax (CEC)Voc, VIsc, APVEL (product / brand)SoCal permits (series)
Jiangsu Xiehang New Energy Intelligent Equipment FE60-166M 370370 W≈20.3%−0.31041.511.72——
LONGi LR4-60HPB-370M370 W≈20.9%−0.33941.211.5product 2021, 2022193
Canadian Solar CS3N-375MS {Blk}375 W≈19%−0.34243.511.2product 202346
REC Group REC370AA370 W≈21.9%−0.25844.110.55brand 9× (2016–2025)30
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.

Questions & answers

How efficient is the Jiangsu Xiehang New Energy Intelligent Equipment FE60-166M 370?

Calculated from the panel area (1.82 m²): about 20.3% for the 370 W class. 370 W over 1.82 m² equals about 203 W per square meter.

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

PVWatts v8 with typical-year weather gives about 620 kWh per year per 370 W panel in Los Angeles and about 679 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.310 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 16% 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 = 28.2 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 28.2 V vs MPPT low 28 V; recommended module power 265–570 W. Confirm on the microinverter maker’s compatibility list.

Sources

  1. California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
  2. Canadian Solar — manufacturer datasheet “HiKu Mono PERC CS3N-400|405|410|415|420|425MS MORE POWER”.
  3. Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists.
  4. NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).
  5. NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Chula Vista, Huntington Beach, Riverside, Santa Clarita.
  6. Inverter datasheets — APsystems (Alt Power System), Enphase, Solis (Ginlong), Tesla (manufacturer documents).
  7. Building permits — Southern California permit portals. Equipment matched from permit descriptions.
  8. Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).