Illustration · 132 half-cut cells

Solar panelELITE Solar

ELITE Solar ET-NR66TBH615GB

Name: ELITE Solar ET-NR66TBH615GB
Brand: ELITE Solar

132 half-cut cells, bifacial, glass (dual-glass module). Power classes 595–640 W in the CEC list.

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

Power class

Power (STC)615 WCEC nameplate
Efficiency≈22.8%calculated from area
%/°C Pmax−0.296CEC listing test
PTC / STC95.1%PTC 585 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 10 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
ET-NR66TBH595GB	595 W	48.10	15.76	39.97	14.89	≈22.0%	565 W	Jul 1, 2025
ET-NR66TBH600GB	600 W	48.30	15.82	40.14	14.95	≈22.2%	570 W	Jul 1, 2025
ET-NR66TBH605GB	605 W	48.50	15.88	40.31	15.01	≈22.4%	575 W	Jul 1, 2025
ET-NR66TBH610GB	610 W	48.70	15.94	40.48	15.07	≈22.6%	580 W	Jul 1, 2025
ET-NR66TBH615GB	615 W	48.90	16.00	40.65	15.13	≈22.8%	585 W	Jul 1, 2025
ET-NR66TBH620GB	620 W	49.10	16.06	40.82	15.19	≈23.0%	590 W	Jul 1, 2025
ET-NR66TBH625GB	625 W	49.30	16.12	40.99	15.25	≈23.1%	594 W	Jul 1, 2025
ET-NR66TBH630GB	630 W	49.50	16.18	41.15	15.31	≈23.3%	599 W	Jul 1, 2025
ET-NR66TBH635GB	635 W	49.70	16.24	41.32	15.37	≈23.5%	604 W	Jul 1, 2025
ET-NR66TBH640GB	640 W	49.90	16.30	41.48	15.43	≈23.7%	609 W	Jul 1, 2025

≈ efficiency = Pmax ÷ CEC-listed area 2.7 m².

Build & dimensions

CEC PV Module List (Oct 7, 2026)

Module area2.7 m² (29.1 ft²)CEC-listed area
Cells132 half-cut cells
Back coverGlass (dual-glass module)
FrameBlack frame

Heat & cold behaviour

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

	CEC listing test
Pmax coefficient γ	−0.296 %/°C
Voc coefficient β	−0.217 %/°C
Isc coefficient α	+0.043 %/°C
Operating cell temperature	NOCT 43.2 °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
595 W	446.1 W	38.23 V × 11.67 A	115.4 W	97%
600 W	449.8 W	38.39 V × 11.71 A	116.3 W	97%
605 W	453.5 W	38.55 V × 11.76 A	117.3 W	97%
610 W	457.2 W	38.72 V × 11.81 A	118.3 W	97%
615 W	461 W	38.88 V × 11.86 A	119.2 W	97%
620 W	464.7 W	39.04 V × 11.9 A	120.2 W	97%
625 W	468.5 W	39.2 V × 11.95 A	121.2 W	97%
630 W	472.2 W	39.36 V × 12 A	122.1 W	97%
635 W	476 W	39.52 V × 12.04 A	123.1 W	97%
640 W	479.7 W	39.67 V × 12.09 A	124.1 W	97%

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

2026

PVEL Top Performer

this series

Tests passed as Top Performer

DH, LID+LETID, MSS, PID, TC, UVID

PVEL Scorecards

ELITE Solar named Top Performer, 2021–2026

PVEL Top Performer tests

Year	Product	Tests
2026	ET-NR66TBHxxxGB	DHLID+LETIDMSSPIDTCUVID

Tested bill of materials

PVEL-tested factoryChina, Indonesia
Cell technology (tested BOM)n-type TOPCon
Module design (tested BOM)bifacial - 2.0 glass//2.0 glass
Power class range tested580-625W

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

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

51.3 V

Voc when cold

per panel

33.9 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	1,031	11,338	6.08
Palmdale	1,835	1,129	12,414	6.69
Chula Vista	1,696	1,043	11,473	6.11
Huntington Beach	1,643	1,010	11,115	5.89
Riverside	1,696	1,043	11,473	6.21
Santa Clarita	1,724	1,060	11,663	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 615 W panels

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

Panel	Pmax	Efficiency	γ Pmax (CEC)	Voc, V	Isc, A	PVEL (product / brand)
ELITE Solar ET-NR66TBH615GB	615 W	≈22.8%	−0.296	48.9	16	product 2026
Phono Solar PS610M8GFH-24/TNH	610 W	≈23.8%	−0.293	53.8	14.02	product 2024, 2025
ZNShine Solar ZXM7-UHLDD144-615/N	615 W	≈24%	−0.281	52.9	14.72	product 2024, 2025, 2026
Waaree BiN-21-615	615 W	≥22.8%	−0.288	48.9	15.97	product 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.

Questions & answers

How efficient is the ELITE Solar ET-NR66TBH615GB?

Calculated from the panel area (2.7 m²): about 22.8% for the 615 W class. 615 W over 2.7 m² equals about 228 W per square meter.

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

PVWatts v8 with typical-year weather gives about 1,031 kWh per year per 615 W panel in Los Angeles and about 1,129 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.296 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 15.3% 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 = 33.9 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?

ET-NR66TBHxxxGB was a PVEL Top Performer in 2026 (DH, LID+LETID, MSS, PID, TC, UVID).

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Waaree — datasheet ELITE-R-SERIES-BiN-21-600-635-WEL-EPD-600-635-132-BiN-HC.
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists 2021–2026.
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 — Solis (Ginlong), Tesla (manufacturer documents).
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).