Illustration · 132 half-cut cells

Solar panelCanadian Solar

Canadian Solar CS6.2-66HB-625H

Name: Canadian Solar CS6.2-66HB-625H
Brand: Canadian Solar

132 half-cut cells, bifacial. Power classes 600–650 W in the CEC list.

CEC listed · Aug 1, 2025UL 61730BifacialPVEL Top Performer 2026

Power class

Power (STC)625 WCEC nameplate
Efficiency≈23.9%calculated from area
%/°C Pmax−0.245CEC listing test
PTC / STC95.7%PTC 598 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 11 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
CS6.2-66HB-600H	600 W	49.80	15.20	42.40	14.14	≈22.9%	574 W	Sep 22, 2025
CS6.2-66HB-605H	605 W	49.90	15.30	42.50	14.25	≈23.1%	579 W	Aug 1, 2025
CS6.2-66HB-610H	610 W	50.00	15.42	42.60	14.36	≈23.3%	584 W	Aug 1, 2025
CS6.2-66HB-615H	615 W	50.00	15.53	42.60	14.46	≈23.5%	589 W	Aug 1, 2025
CS6.2-66HB-620H	620 W	50.10	15.65	42.60	14.58	≈23.7%	594 W	Aug 1, 2025
CS6.2-66HB-625H	625 W	50.10	15.75	42.60	14.69	≈23.9%	598 W	Aug 1, 2025
CS6.2-66HB-630H	630 W	50.20	15.82	42.60	14.79	≈24.0%	603 W	Aug 1, 2025
CS6.2-66HB-635H	635 W	50.30	15.92	42.70	14.88	≈24.2%	608 W	Aug 1, 2025
CS6.2-66HB-640H	640 W	50.40	16.01	42.70	14.99	≈24.4%	613 W	Aug 1, 2025
CS6.2-66HB-645H	645 W	50.40	16.13	42.80	15.07	≈24.6%	618 W	Aug 1, 2025
CS6.2-66HB-650H	650 W	50.50	16.22	42.90	15.16	≈24.8%	623 W	Aug 1, 2025

≈ efficiency = Pmax ÷ CEC-listed area 2.62 m².

CEC note: Formerly listed under CSI Solar Co., Ltd.

Heat & cold behaviour

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

	CEC listing test
Pmax coefficient γ	−0.245 %/°C
Voc coefficient β	−0.218 %/°C
Isc coefficient α	+0.067 %/°C
Operating cell temperature	NOCT 44.4 °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
600 W	458.1 W	39.85 V × 11.5 A	114.7 W	96%
605 W	462.8 W	39.94 V × 11.59 A	115.9 W	96%
610 W	467.4 W	40.03 V × 11.68 A	117 W	96%
615 W	470.7 W	40.03 V × 11.76 A	117.9 W	96%
620 W	474.6 W	40.03 V × 11.86 A	118.8 W	96%
625 W	478.2 W	40.03 V × 11.94 A	119.7 W	96%
630 W	481.4 W	40.03 V × 12.03 A	120.6 W	96%
635 W	485.5 W	40.13 V × 12.1 A	121.6 W	96%
640 W	489.1 W	40.13 V × 12.19 A	122.5 W	96%
645 W	492.8 W	40.22 V × 12.25 A	123.4 W	96%
650 W	496.9 W	40.31 V × 12.33 A	124.4 W	96%

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

2026

PVEL Top Performer

this series

Tests passed as Top Performer

HSS, LID+LETID, MSS, PAN, PID, TC

PVEL Scorecards

Canadian Solar named Top Performer, 2020–2026

RETC PV Module Index

Canadian Solar, 2025

PVEL Top Performer tests

Year	Product	Tests
2026	CS6.2-66HB-xxxH	LID+LETIDPANTC
2026	CS6.2-66HB-xxxHP (closely related product name)	HSSLID+LETIDMSSPANPIDTC
2026	CS6.2-66HB-xxx (closely related product name)	LID+LETIDPANTC

Tested bill of materials

PVEL-tested factoryChina, Thailand
Cell technology (tested BOM)n-type HJT
Module design (tested BOM)bifacial - 2.0 glass//2.0 glass
Power class range tested630-675W

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

RETC PV Module Index — Canadian Solar

Year	Recognition
2025	Reliability 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)

CityColdest air, °CHottest cell, °CString inverter

52.6 V

Voc when cold

per panel

36.1 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	2–11
Solis (Ginlong) S6-EH1P10K-H-US	600 V	80–520 V	datasheet	3–11
Solis (Ginlong) Solis-1P7.6K-4G-US	600 V	100–500 V	datasheet	3–11
Qcells Q.VOLT H7.6SX	498 V	234–498 V	CEC test window	7–9

Microinverters (one per panel)

No microinverter in the reference set lists this power class in its recommended module power range.

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	1,048	11,522	6.08
Palmdale	1,835	1,147	12,616	6.69
Chula Vista	1,696	1,060	11,660	6.11
Huntington Beach	1,643	1,027	11,296	5.89
Riverside	1,696	1,060	11,660	6.21
Santa Clarita	1,724	1,078	11,852	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 625 W panels

CEC PV Module List (Oct 7, 2026) · datasheets · Kiwa PVEL Scorecard

Panel	Pmax	Efficiency	γ Pmax (CEC)	Voc, V	Isc, A	Warranty	PVEL (product / brand)
Canadian Solar CS6.2-66HB-625H	625 W	≈23.9%	−0.245	50.1	15.75	—	product 2026
Hyundai Energy Solutions HiS-T625NJ	625 W	≈22.6%	−0.294	57.15	13.82	12 / 30 yr	brand 5× (2017–2025)
JinkoSolar JKM625N-66HL4M-BDV	625 W	≈23.1%	−0.299	49.28	16.14	12 / 30 yr	product 2025
Waaree BiN-17-625	625 W	≥22.4%	−0.308	56.88	13.88	12 / 30 yr	product 2025, 2026

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 Canadian Solar

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

ManufacturerCanadian Solar
Listed in CEC asCSI Energy Storage Co., Ltd., CSI Solar Co., Ltd., Canadian Solar
Websitecanadiansolar.com
PVEL Top Performer (manufacturer)5 Scorecards (2020–2026)
RETC PV Module Index2025
Current panel series in CEC list38

Other series by SoCal permits

CS6R-xxxMS-HL · 46CS3N-xxxMS · 46CS6.1-54TM-xxxH · 9CS1Y-xxxMS · 6CS3W-xxxMS · 6CS3W-xxxMB-AG · 5

Questions & answers

How efficient is the Canadian Solar CS6.2-66HB-625H?

Calculated from the panel area (2.62 m²): about 23.9% for the 625 W class. 625 W over 2.62 m² equals about 239 W per square meter.

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

PVWatts v8 with typical-year weather gives about 1,048 kWh per year per 625 W panel in Los Angeles and about 1,147 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.245 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 12.7% 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 = 52.6 V, Vmp at 74 °C cell = 36.1 V). Final design must follow the inverter manual and NEC 690.7.

Is it bifacial?

Yes. Rear gain depends on mounting height and ground reflectance.

Has this panel been reliability-tested?

CS6.2-66HB-xxxH was a PVEL Top Performer in 2026 (LID+LETID, PAN, TC).

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Hyundai Energy Solutions — datasheet [US] NJ(HiS) Series (N TOPCon Bifacial) 635~645W.
JinkoSolar — datasheet THE MOST DEPENDABLE SOLAR PRODUCT.
Waaree — datasheet ELITE SERIES BiN-17-615-645 WEL-EPD-615-645-156-BiN-HC-04-27.05.2024 35mm.
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists 2020–2026.
RETC — PV Module Index report.
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 — 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).