Illustration · 108 cells

Solar panelGoldi Solar

Goldi Solar GS10-B108-TF 395

Name: Goldi Solar GS10-B108-TF 395
Brand: Goldi Solar

108 cells, bifacial, transparent backsheet. Power classes 390–405 W in the CEC list.

CEC listed · Aug 1, 2023UL 61730BifacialPVEL Top Performer 2024

Power class

Power (STC)395 WCEC nameplate
Efficiency≈20.2%calculated from area
%/°C Pmax−0.292CEC listing test
PTC / STC93.8%PTC 371 W (CEC)

Power classes

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · 4 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
GS10-B108-TF-390	390 W	37.00	13.41	30.77	12.69	≈19.9%	366 W	Aug 1, 2023
GS10-B108-TF-395	395 W	37.05	13.44	30.95	12.77	≈20.2%	371 W	Aug 1, 2023
GS10-B108-TF-400	400 W	37.10	13.47	31.10	12.87	≈20.4%	376 W	Aug 1, 2023
GS10-B108-TF-405	405 W	37.15	13.50	31.27	12.96	≈20.7%	380 W	Aug 1, 2023

≈ efficiency = Pmax ÷ CEC-listed area 1.96 m².

Build & dimensions

CEC PV Module List (Oct 7, 2026)

Module area1.96 m² (21.1 ft²)CEC-listed area
Cells108 cells
Back coverTransparent backsheet

Heat & cold behaviour

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

	CEC listing test
Pmax coefficient γ	−0.292 %/°C
Voc coefficient β	−0.230 %/°C
Operating cell temperature	NOCT 46.8 °C

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
390 W	287.7 W	28.83 V × 9.98 A	76.6 W	98%
395 W	291.2 W	29 V × 10.04 A	77.5 W	98%
400 W	294.9 W	29.14 V × 10.12 A	78.5 W	98%
405 W	298.6 W	29.3 V × 10.19 A	79.5 W	98%

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 61730IEC 61215

UL 61730CEC listing
IEC 61215design qualification on file with CEC · Jul 3, 2023

Independent reliability testing

Kiwa PVEL Scorecard

2024

PVEL Top Performer

this series

Tests passed as Top Performer

LID+LETID

PVEL Scorecards

Goldi Solar named Top Performer, 2024–2026

PVEL Top Performer tests

Year	Product	Tests
2024	GS10-B108-TF-xxx	LID+LETID

Tested bill of materials

PVEL-tested factoryIndia
Cell technology (tested BOM)p-type PERC
Module design (tested BOM)bifacial - glass//backsheet
Power class range tested380-425W

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

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	662	11,916	6.08
Palmdale	1,835	725	13,047	6.69
Chula Vista	1,696	670	12,059	6.11
Huntington Beach	1,643	649	11,682	5.89
Riverside	1,696	670	12,059	6.21
Santa Clarita	1,724	681	12,258	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 395 W panels

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

Panel	Pmax	Efficiency	γ Pmax (CEC)	Voc, V	Isc, A	PVEL (product / brand)	SoCal permits (series)
Goldi Solar GS10-B108-TF 395	395 W	≈20.2%	−0.292	37.05	13.44	product 2024	—
Qcells Q.PEAK DUO BLK ML-G10+ 395	395 W	≥20.1%	−0.362	45.27	11.1	product 2022, 2023	221
JA Solar JAM54S31-395/MR	395 W	≈20.8%	−0.329	36.98	13.7	product 2023, 2024	152
REC Group REC395AA Pure	395 W	≈22%	−0.256	48.7	10.2	brand 9× (2016–2025)	66

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 Goldi Solar GS10-B108-TF 395?

Calculated from the panel area (1.96 m²): about 20.2% for the 395 W class. 395 W over 1.96 m² equals about 202 W per square meter.

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

PVWatts v8 with typical-year weather gives about 662 kWh per year per 395 W panel in Los Angeles and about 725 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.292 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 15.1% below the STC rating.

Is it bifacial?

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

Has this panel been reliability-tested?

GS10-B108-TF-xxx was a PVEL Top Performer in 2024 (LID+LETID).

Sources

California Energy Commission — Solar Equipment Lists, PV Module List (snapshot Oct 7, 2026).
Qcells — manufacturer datasheet “Q.PEAK DUO BLK ML-G10+ ENDURING HIGH PERFORMANCE”.
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists 2024–2026.
NLR (formerly NREL) — System Advisor Model CEC module 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.
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).