Illustration · 120 half-cut cells

Solar panelJinkoSolar

JinkoSolar JKM345M-6TL3

Name: JinkoSolar JKM345M-6TL3
Brand: JinkoSolar

120 half-cut cells. Power classes 330–365 W in the CEC list.

CEC listed · Dec 11, 2020UL 61730PVEL Top Performer 2022

Power class

Power (STC)345 WCEC nameplate
Efficiency≈20.5%calculated from area
%/°C Pmax−0.374CEC listing test
PTC / STC92.7%PTC 320 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 8 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
JKM330M-6TL3	330 W	39.31	10.92	32.64	10.11	≈19.6%	306 W	Dec 11, 2020
JKM335M-6TL3	335 W	39.41	11.04	32.75	10.23	≈19.9%	310 W	Dec 11, 2020
JKM340M-6TL3	340 W	39.51	11.16	32.85	10.35	≈20.2%	315 W	Dec 11, 2020
JKM345M-6TL3	345 W	39.61	11.28	32.95	10.47	≈20.5%	320 W	Dec 11, 2020
JKM350M-6TL3	350 W	39.71	11.40	33.05	10.59	≈20.8%	325 W	Dec 11, 2020
JKM355M-6TL3	355 W	39.81	11.52	33.15	10.71	≈21.1%	329 W	Dec 11, 2020
JKM360M-6TL3	360 W	39.91	11.64	33.24	10.83	≈21.4%	334 W	Dec 11, 2020
JKM365M-6TL3	365 W	40.01	11.76	33.34	10.95	≈21.7%	339 W	Dec 11, 2020

≈ efficiency = Pmax ÷ CEC-listed area 1.68 m².

Build & dimensions

CEC PV Module List (Oct 7, 2026)

Module area1.68 m² (18.1 ft²)CEC-listed area
Cells120 half-cut cells
Back coverWhite backsheet

Heat & cold behaviour

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

	CEC listing test
Pmax coefficient γ	−0.374 %/°C
Voc coefficient β	−0.278 %/°C
Isc coefficient α	+0.053 %/°C
Operating cell temperature	NOCT 45.4 °C

Vmp coefficient ≈ γ − α (CEC); used only for the hot-roof voltage estimate.

Away from lab conditions — CEC listing test points

Class	Pmax at NOCT	Vmp × Imp at NOCT	Pmax at 200 W/m²	Low-light efficiency vs STC
330 W	236.9 W	30.54 V × 7.76 A	61.8 W	94%
335 W	240.5 W	30.64 V × 7.85 A	62.7 W	94%
340 W	244.1 W	30.74 V × 7.94 A	63.6 W	94%
345 W	247.6 W	30.83 V × 8.03 A	64.6 W	94%
350 W	251.2 W	30.93 V × 8.12 A	65.5 W	94%
355 W	254.8 W	31.02 V × 8.22 A	66.4 W	94%
360 W	258.4 W	31.1 V × 8.31 A	67.4 W	94%
365 W	262.1 W	31.2 V × 8.4 A	68.3 W	94%

Pmax = Vmp × Imp from the CEC listing; low-light efficiency = Pmax at 200 W/m² ÷ (20% of STC Pmax).

Independent reliability testing

Kiwa PVEL Scorecard · RETC PV Module Index

2022

PVEL Top Performer

this series

Tests passed as Top Performer

LID+LETID, MSS, PID, TC

PVEL Scorecards

JinkoSolar named Top Performer, 2014–2026

2023, 2025, 2026

RETC Overall Highest Achiever

JinkoSolar, manufacturer level

PVEL Top Performer tests

Year	Product	Tests
2022	JKMxxxM-6TL3	LID+LETIDMSSPIDTC
2022	JKMxxxM-6TL3-B (closely related product name)	LID+LETIDMSSPIDTC

Tested bill of materials

Cell technology (tested BOM)p-type PERC
Module design (tested BOM)Monofacial - glass//backsheet
Power class range tested355-400W

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

RETC PV Module Index — JinkoSolar

Year	Recognition
2023	Overall Highest Achiever; High Achievement in Performance (LeTID RESISTANCE); High Achievement in Quality (Hail durability test); High Achievement in Reliability (Pid resistance, SDML, Thermal cycle test)
2024	High Achievement in Performance
2025	Overall Highest Achiever
2026	Overall Highest Achiever; High achievement in performance; High achievement in reliability; Performance discipline high achiever (Temperature coefficient, PAN file, Iam); Quality discipline high achiever (BOM verification); Reliability discipline high achiever (Damp heat, Tc, Sdml, Pid)

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)

CityColdest air, °CHottest cell, °CString inverter

42.1 V

Voc when cold

per panel

26.1 V

Vmp when hot

per panel

Max panels / string

max DC 600 V

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

Inverter	Max DC input	MPPT	Window source	Panels per string
Tesla 1538000-xx-y	600 V	60–480 V	datasheet	3–14
Solis (Ginlong) S6-EH1P10K-H-US	600 V	80–520 V	datasheet	4–14
Solis (Ginlong) Solis-1P7.6K-4G-US	600 V	100–500 V	datasheet	4–14
Qcells Q.VOLT H7.6SX	498 V	234–498 V	CEC test window	9–11

Microinverters (one per panel)

Microinverter	Recommended module power	Max DC input	MPPT	Voc cold / Vmp hot	Check	DC/AC
Enphase IQ8PLUS-72-2-US	235–440 W	60 V	29–45 V	42.1 / 26.1 V	⚠ Works; below MPPT at peak heat	1.19
Enphase IQ8X-80-M-US	320–540 W	79.5 V	43–60 V	42.1 / 26.1 V	✗ Not a match: module voltage below MPPT range	0.91
APsystems (Alt Power System) DS3-L	265–570 W	60 V	28–45 V	42.1 / 26.1 V	⚠ Works; below MPPT at peak heat	0.44
Enphase IQ8M-72-2-US	260–460 W	60 V	30–45 V	42.1 / 26.1 V	⚠ Works; below MPPT at peak heat	1.06
Enphase IQ8A-72-2-US	295–500 W	60 V	32–45 V	42.1 / 26.1 V	⚠ Works; below MPPT at peak heat	0.99

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

PanelsCity for chartSystem size

City	kWh / kW / yr	kWh / panel / yr	kWh / system / yr	Sun, kWh/m²/day
Los Angeles	1,676	578	11,564	6.08
Palmdale	1,835	633	12,662	6.69
Chula Vista	1,696	585	11,702	6.11
Huntington Beach	1,643	567	11,337	5.89
Riverside	1,696	585	11,702	6.21
Santa Clarita	1,724	595	11,896	6.28

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 345 W panels

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

Panel	Pmax	Efficiency	γ Pmax (CEC)	Voc, V	Isc, A	PVEL (product / brand)	SoCal permits (series)
JinkoSolar JKM345M-6TL3	345 W	≈20.5%	−0.374	39.61	11.28	product 2022	—
LONGi LR4-60HPB-345M	345 W	≈19.5%	−0.339	40.2	11.06	product 2021, 2022	193
REC Group REC345AA	345 W	≈20.5%	−0.279	43.4	10.12	brand 9× (2016–2025)	30
Qcells Q.PEAK DUO-G8+ 345	345 W	≥19.3%	−0.343	40.45	10.68	product 2022	20

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 JinkoSolar

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

ManufacturerJinkoSolar
Listed in CEC asJinko Solar Co., Ltd, Jinko Solar Co., Ltd.
Websitejinkosolar.us
PVEL Top Performer (manufacturer)12 Scorecards (2014–2026)
RETC PV Module Index2023, 2024, 2025, 2026
Current panel series in CEC list68

Other series by SoCal permits

JKMxxxM-60HBL · 45JKMxxxN-54HL4-B · 10JKMxxxM-72HL-V · 6JKMxxxM-6RL3-B · 3JKMxxxM-72HL-TV · 3JKMxxxN-54HL4R-B · 1

Questions & answers

How efficient is the JinkoSolar JKM345M-6TL3?

Calculated from the panel area (1.68 m²): about 20.5% for the 345 W class. 345 W over 1.68 m² equals about 205 W per square meter.

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

PVWatts v8 with typical-year weather gives about 578 kWh per year per 345 W panel in Los Angeles and about 633 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.374 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 19.4% 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 3–14 panels per string (Voc at 2 °C = 42.1 V, Vmp at 74 °C cell = 26.1 V). Final design must follow the inverter manual and NEC 690.7.

Has this panel been reliability-tested?

JKMxxxM-6TL3 was a PVEL Top Performer in 2022 (LID+LETID, MSS, PID, TC).

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Qcells — manufacturer datasheet “Q.PEAK DUO-G8+ 345-360 EN ENDURING HIGH”.
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists 2014–2026.
RETC — PV Module Index reports 2023–2026.
NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Chula Vista, Huntington Beach, Riverside, Santa Clarita.
Inverter datasheets — APsystems (Alt Power System), Enphase, Solis (Ginlong), Tesla (manufacturer documents).
Building permits — Southern California permit portals. Equipment matched from permit descriptions.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).