41.3″ · 1,048 mm wide · 1.38″ (35 mm) frame · 54 lb (24.5 kg)

Solar panelURE (United Renewable Energy)

URE (United Renewable Energy) FAK445C8G

Name: URE (United Renewable Energy) FAK445C8G
Brand: URE (United Renewable Energy)

144 half-cut cells, PERC, bifacial, transparent mesh. Power classes 430–465 W in the CEC list; datasheet covers 430–450 W.

CEC listed · Jul 21, 2021UL 61730BifacialPERC

Power class

Power (STC)445 WCEC nameplate
Efficiency≥20.0%datasheet minimum
%/°C Pmax−0.37CEC test: −0.351
Output at year 2580.2%performance warranty

Power classes

CEC PV Module List (Oct 7, 2026) · URE (United Renewable Energy) datasheet · Cali-Graf calculation · 8 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
FAK430C8G	430 W	48.60	11.20	40.40	10.65	≥19.3%	400 W	Jul 21, 2021
FAK435C8G	435 W	48.80	11.28	40.60	10.72	≥19.6%	404 W	Jul 21, 2021
FAK440C8G	440 W	49.00	11.36	40.80	10.79	≥19.8%	409 W	Jul 21, 2021
FAK445C8G	445 W	49.20	11.44	41.00	10.86	≥20.0%	414 W	Jul 21, 2021
FAK450C8G	450 W	49.40	11.52	41.20	10.93	≥20.2%	419 W	Jul 21, 2021
FAK455C8G	455 W	49.60	11.60	41.40	11.00	≈20.5%	423 W	Jul 21, 2021
FAK460C8G	460 W	49.80	11.67	41.60	11.06	≈20.7%	428 W	Jul 21, 2021
FAK465C8G	465 W	50.00	11.75	41.80	11.13	≈20.9%	433 W	Jul 21, 2021

≈ efficiency = Pmax ÷ panel area 2.224 m² (datasheet size) for classes outside the datasheet.

Build & dimensions

URE (United Renewable Energy) datasheet · Cali-Graf calculation · CEC PV Module List (Oct 7, 2026)

Dimensions83.5 × 41.3 × 1.38 in2,122 × 1,048 × 35 mm
Module area2.22 m² (23.9 ft²)length × width
Weight54 lb (24.5 kg)
Cells144 half-cut cellsPERC
Back coverTransparent mesh
Junction boxIP≥ 67, 3 diodes

Heat & cold behaviour

URE (United Renewable Energy) datasheet · CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation

	Datasheet	CEC listing test
Pmax coefficient γ	−0.37 %/°C	−0.351 %/°C
Voc coefficient β	−0.26 %/°C	−0.280 %/°C
Isc coefficient α	+0.04 %/°C	+0.051 %/°C
Vmp coefficient	≈ −0.41 %/°C	—
Operating cell temperature	NMOT 45 ± 2 °C	NOCT 45.7 °C

Vmp coefficient ≈ γ − α (datasheet); 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
430 W	324.1 W	38.43 V × 8.43 A	85.9 W	100%
435 W	327.8 W	38.62 V × 8.49 A	86.9 W	100%
440 W	331.6 W	38.81 V × 8.54 A	87.9 W	100%
445 W	335.4 W	39 V × 8.6 A	88.9 W	100%
450 W	339.2 W	39.19 V × 8.66 A	89.9 W	100%
455 W	343 W	39.38 V × 8.71 A	90.9 W	100%
460 W	346.6 W	39.57 V × 8.76 A	91.8 W	100%
465 W	350.4 W	39.76 V × 8.81 A	92.9 W	100%

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

Electrical & strength ratings

Max system voltage1,500 V
Max series fuse20 A
Fire rating (UL 61730)Class C
Design load push / pull113 psf5,400 Pa
Module temperature−40 °F to +185 °F−40 °C to +85 °C

Certifications

CEC PV Module List (Oct 7, 2026) · URE (United Renewable Energy) datasheet

UL 61730Fire rating Class C (UL 61730)

UL 61730CEC listing
Fire rating Class C (UL 61730)datasheet

Warranty & degradation

URE (United Renewable Energy) datasheet

Year 25≥ 80.2%

Inverter compatibility & string sizing

URE (United Renewable Energy) datasheet · Cali-Graf calculation · NLR PVWatts v8 · CEC PV Module List (Oct 7, 2026) · inverter datasheets · NLR SAM inverter library · CEC Grid Support Inverter List (Oct 7, 2026)

CityColdest air, °CHottest cell, °CString inverter

52.1 V

Voc when cold

per panel

32.7 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.

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	4–11
Qcells Q.VOLT H7.6SX	498 V	234–498 V	CEC test window	8–9

Microinverters (one per panel)

Microinverter	Recommended module power	Max DC input	MPPT	Voc cold / Vmp hot	Check	DC/AC
Enphase IQ8X-80-M-US	320–540 W	79.5 V	43–60 V	52.1 / 32.7 V	✗ Not a match: module voltage below MPPT range	1.17
APsystems (Alt Power System) DS3-L	265–570 W	60 V	28–45 V	52.1 / 32.7 V	✓ Within range	0.57
Enphase IQ8M-72-2-US	260–460 W	60 V	30–45 V	52.1 / 32.7 V	✓ Within range	1.37
Enphase IQ8A-72-2-US	295–500 W	60 V	32–45 V	52.1 / 32.7 V	✓ Within range	1.28

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	746	11,933	6.08
Palmdale	1,835	817	13,065	6.69
Chula Vista	1,696	755	12,076	6.11
Huntington Beach	1,643	731	11,698	5.89
Riverside	1,696	755	12,076	6.21
Santa Clarita	1,724	767	12,275	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 445 W panels

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

Panel	Pmax	Efficiency	γ Pmax (CEC)	Voc, V	Isc, A	Size	Warranty	PVEL (product / brand)	SoCal permits (series)
URE (United Renewable Energy) FAK445C8G	445 W	≥20%	−0.351	49.2	11.44	83.5 × 41.3 in	—	—	—
Qcells Q.TRON BLK M-G2+ 445	445 W	≈22.8%	−0.276	40.16	13.98	67.8 × 44.6 in	25 / 25 yr	brand 11× (2016–2026)	40
Silfab Solar SIL-440QD	440 W	≈22.6%	−0.294	38.97	14.25	67.8 × 44.6 in	25 / 30 yr	brand 7× (2017–2025)	39
Hyundai Energy Solutions HiN-T445NF(BK)	445 W	≈22.9%	−0.298	39	14.46	—	25 / 30 yr	brand 5× (2017–2025)	37

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.

Documents

manufacturer documents

PDF
445 watt bi-facial
Datasheet · URECO (United Renewable Energy) · Mar 2022
PDF
445 watt bi-facial
Datasheet · URECO (United Renewable Energy) · Mar 2022

Questions & answers

How efficient is the URE (United Renewable Energy) FAK445C8G?

The URE (United Renewable Energy) datasheet guarantees at least 20% module efficiency for the 445 W class (up to 20.2% for 450 W). 445 W over 2.22 m² equals about 200 W per square meter.

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

PVWatts v8 with typical-year weather gives about 746 kWh per year per 445 W panel in Los Angeles and about 817 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.37 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 19% 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 = 52.1 V, Vmp at 74 °C cell = 32.7 V). Final design must follow the inverter manual and NEC 690.7.

Does it work with APsystems (Alt Power System) DS3-L microinverters?

Voltage check against the APsystems (Alt Power System) datasheet: Voc when cold 52.1 V vs max input 60 V; Vmp when hot 32.7 V vs MPPT low 28 V; recommended module power 265–570 W. Confirm on the microinverter maker’s compatibility list.

How big and heavy is it?

83.5 × 41.3 × 1.38 in (2,122 × 1,048 × 35 mm), 54 lb (24.5 kg).

Is it bifacial?

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

What fire rating does it have?

UL 61730 fire rating Class C per datasheet.

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
URE (United Renewable Energy) — datasheet 445 watt bi-facial.
Qcells — manufacturer datasheet “Q.TRON BLK M-G2+ SERIES 415–440 Wp”.
Silfab Solar — datasheet NTC SIL-420 QD CELL TECHNOLOGY.
Hyundai Energy Solutions — datasheet [US] NF(BK)(HiN) Series (N TOPCon Bifacial) 435~445W.
URE (United Renewable Energy) — document library on the manufacturer’s website (links above).
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists.
NLR (formerly NREL) — System Advisor Model CEC module and inverter libraries (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).