Cali-GrafCali-Graf
Solar panelTalesun

Talesun TP672M(H) 370

72 cells. Power classes 325–415 W in the CEC list.

CEC listed · Jun 18, 2019UL 1703
Power class
  • Power (STC)370 WCEC nameplate
  • Efficiency≈19.0%calculated from area
  • %/°C Pmax−0.361CEC listing test
  • PTC / STC93.3%PTC 345 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 19 models
ModelPmaxVoc, VIsc, AVmp, VImp, AEfficiencyPTCCEC listed
TP672M(H)-325325 W46.309.1837.508.67≈16.7%297 W—
TP672M(H)-330330 W46.509.2437.908.72≈17.0%302 W—
TP672M(H)-335335 W46.709.3038.208.77≈17.3%306 W—
TP672M(H)-340340 W47.009.3738.608.82≈17.5%311 W—
TP672M(H)-345345 W47.209.4338.908.87≈17.8%316 W—
TP672M(H)-350350 W47.409.5039.308.92≈18.0%320 W—
TP672M(H)-355355 W47.609.5639.608.97≈18.3%325 W—
TP672M(H)-360360 W47.809.6240.009.01≈18.6%330 W—
TP672M(H)-365365 W48.009.7739.309.29≈18.8%340 WJun 18, 2019
TP672M(H)-370370 W48.309.8339.609.35≈19.0%345 WJun 18, 2019
TP672M(H)-375375 W48.509.8939.809.43≈19.3%350 WJun 18, 2019
TP672M(H)-380380 W48.3010.2039.609.60≈19.2%348 WJun 18, 2019
TP672M(H)-385385 W48.5010.2839.809.68≈19.4%353 WJun 18, 2019
TP672M(H)-390390 W48.7010.3540.009.75≈19.7%358 WJan 2, 2020
TP672M(H)-395395 W49.0010.4140.309.81≈19.9%362 WJan 2, 2020
TP672M(H)-400400 W49.2010.4840.509.88≈20.2%367 WJan 2, 2020
TP672M(H)-405405 W49.3010.5640.709.96≈20.5%372 WJan 2, 2020
TP672M(H)-410410 W49.5010.6340.9010.03≈20.7%377 WJan 2, 2020
TP672M(H)-415415 W49.8010.7041.1010.10≈21.0%382 WJan 2, 2020
≈ efficiency = Pmax ÷ CEC-listed area 1.94 m².

Build & dimensions

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation

Heat & cold behaviour

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation
CEC listing test
Pmax coefficient γ−0.361 %/°C
Voc coefficient β−0.268 %/°C
Isc coefficient α+0.044 %/°C
Operating cell temperatureNOCT 43.9 °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
325 W241 W34.57 V × 6.97 A63.8 W98%
330 W245 W34.94 V × 7.01 A64.8 W98%
335 W248.3 W35.22 V × 7.05 A65.7 W98%
340 W252.3 W35.59 V × 7.09 A66.8 W98%
345 W255.7 W35.86 V × 7.13 A67.7 W98%
350 W259.8 W36.23 V × 7.17 A68.7 W98%
355 W263.3 W36.51 V × 7.21 A69.7 W98%
360 W267.1 W36.88 V × 7.24 A70.7 W98%
365 W269.1 W36.31 V × 7.41 A71.2 W98%
370 W272.9 W36.59 V × 7.46 A72.2 W98%
375 W276.6 W36.77 V × 7.52 A73.2 W98%
380 W275.8 W35.36 V × 7.8 A71.6 W94%
385 W279.5 W35.54 V × 7.86 A72.5 W94%
390 W282.9 W35.72 V × 7.92 A73.4 W94%
395 W286.8 W35.99 V × 7.97 A74.4 W94%
400 W290.3 W36.17 V × 8.03 A75.4 W94%
405 W294.1 W36.35 V × 8.09 A76.3 W94%
410 W297.6 W36.52 V × 8.15 A77.3 W94%
415 W301.2 W36.7 V × 8.21 A78.2 W94%
Pmax = Vmp × Imp from the CEC listing; low-light efficiency = Pmax at 200 W/m² ÷ (20% of STC Pmax).

Certifications

CEC PV Module List (Oct 7, 2026)
UL 1703IEC 61215

Independent reliability testing

Kiwa PVEL Scorecard · RETC PV Module Index
5
PVEL Scorecards
Talesun named Top Performer, 2017–2025
1
RETC PV Module Index
Talesun, 2024
This exact series is not listed in published PVEL Top Performer tables. Results below are for the manufacturer.

RETC PV Module Index — Talesun

YearRecognition
2024Test Category High Achiever

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)
51.3 V
Voc when cold
per panel
31.7 V
Vmp when hot
per panel
11
Max panels / string
max DC 600 V
2
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 Vdatasheet2–11
Solis (Ginlong) S6-EH1P10K-H-US600 V80–520 Vdatasheet3–11
Solis (Ginlong) Solis-1P7.6K-4G-US600 V100–500 Vdatasheet4–11
Qcells Q.VOLT H7.6SX498 V234–498 VCEC test window8–9

Microinverters (one per panel)

MicroinverterRecommended module powerMax DC inputMPPTVoc cold / Vmp hotCheckDC/AC
Enphase IQ8PLUS-72-2-US235–440 W60 V29–45 V51.3 / 31.7 V✓ Within range1.28
Enphase IQ8X-80-M-US320–540 W79.5 V43–60 V51.3 / 31.7 V✗ Not a match: module voltage below MPPT range0.97
APsystems (Alt Power System) DS3-L265–570 W60 V28–45 V51.3 / 31.7 V✓ Within range0.47
Enphase IQ8M-72-2-US260–460 W60 V30–45 V51.3 / 31.7 V✓ Within range1.14
Enphase IQ8A-72-2-US295–500 W60 V32–45 V51.3 / 31.7 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)
Talesun TP672M(H) 370370 W≈19%−0.36148.39.83brand 5×—
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.

About Talesun

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

Other series by SoCal permits

TM7G54M · 1TM3F48MTM3F66MTM3G48MTM3G66MTM7F54M

Questions & answers

How efficient is the Talesun TP672M(H) 370?

Calculated from the panel area (1.94 m²): about 19% for the 370 W class. 370 W over 1.94 m² equals about 191 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 = −0.361 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 18.7% 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 2–11 panels per string (Voc at 2 °C = 51.3 V, Vmp at 74 °C cell = 31.7 V). Final design must follow the inverter manual and NEC 690.7.

Does it work with Enphase IQ8PLUS-72-2-US microinverters?

Voltage check against the Enphase datasheet: Voc when cold 51.3 V vs max input 60 V; Vmp when hot 31.7 V vs MPPT low 29 V; recommended module power 235–440 W. Confirm on the microinverter maker’s compatibility list.

Has this panel been reliability-tested?

This exact series is not in published PVEL Top Performer tables; Talesun was named a Top Performer in 5 Scorecards (2017–2025).

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 2017–2025.
  4. RETC — PV Module Index report.
  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 — Southern California permit portals. Equipment matched from permit descriptions.
  9. Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).