44.6″ · 1,133 mm wide · 1.38″ (35 mm) frame · 52.9 lb (24 kg)

Solar panelUniversal Solar Americas

Universal Solar Americas UNI450-120M-BB

Name: Universal Solar Americas UNI450-120M-BB
Brand: Universal Solar Americas

120 half-cut cells (12 × 10), PERC. Power classes 450–455 W in the CEC list; datasheet covers 445–460 W.

CEC listed · Dec 12, 2022UL 61730PERC

Power class

Power (STC)450 WCEC nameplate
Efficiency≥21.0%datasheet minimum
%/°C Pmax−0.389CEC listing test
Performance warranty30 yrdatasheet

Power classes

CEC PV Module List (Oct 7, 2026) · Universal Solar Americas datasheet · 2 models

Model	Pmax	Voc, V	Isc, A	Vmp, V	Imp, A	Efficiency	PTC	CEC listed
UNI450-120M-BB	450 W	42.10	13.56	35.00	12.86	≥21.0%	414 W	Dec 12, 2022
UNI455-120M-BB	455 W	42.30	13.63	35.20	12.93	≥21.2%	419 W	Dec 12, 2022

Build & dimensions

Universal Solar Americas datasheet · Cali-Graf calculation

Dimensions75.4 × 44.6 × 1.38 in1,914 × 1,133 × 35 mm
Module area2.17 m² (23.3 ft²)length × width
Weight52.9 lb (24 kg)
Cells120 half-cut cells (12 × 10)PERC
Front glassWhite toughened safety glass, 3.2mm
Back coverComposite film
FrameBlack anodized aluminum profile
Junction boxIP68, 3 diodes
Cable / connectorPotrait: 500mm (cable length can be customized),1x4 mm2,comp

Heat & cold behaviour

CEC PV Module List (Oct 7, 2026) · Cali-Graf calculation · Universal Solar Americas datasheet

	Datasheet	CEC listing test
Pmax coefficient γ	—	−0.389 %/°C
Voc coefficient β	—	−0.292 %/°C
Isc coefficient α	—	+0.044 %/°C
Vmp coefficient	≈ −0.43 %/°C	—
Operating cell temperature	NMOT 45 °C	NOCT 46.6 °C

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

At normal operating conditions (NOCT, 800 W/m²) — datasheet

Class	Pmax, W	Voc, V	Isc, A	Vmp, V	Imp, A
450 W	332.1	39.40	10.95	32.70	10.17
455 W	335.8	39.50	11.01	32.80	10.23

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
450 W	334.4 W	32.3 V × 10.35 A	90.1 W	100%
455 W	338.2 W	32.49 V × 10.41 A	91.1 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 fuse30 A
Protection classclass A
Design load push / pull113 psf5,400 Pa
Module temperature−40 °F to +185 °F−40 °C to +85 °C
Hail25 mm (0.98 in) at 23 km/h

Warranty & degradation

Universal Solar Americas datasheet

Performance warranty30 years, linear

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

44.9 V

Voc when cold

per panel

27.6 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	3–13
Solis (Ginlong) S6-EH1P10K-H-US	600 V	80–520 V	datasheet	3–13
Solis (Ginlong) Solis-1P7.6K-4G-US	600 V	100–500 V	datasheet	4–13
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 IQ8X-80-M-US	320–540 W	79.5 V	43–60 V	44.9 / 27.6 V	✗ Not a match: module voltage below MPPT range	1.18
APsystems (Alt Power System) DS3-L	265–570 W	60 V	28–45 V	44.9 / 27.6 V	⚠ Works; below MPPT at peak heat	0.58
Enphase IQ8M-72-2-US	260–460 W	60 V	30–45 V	44.9 / 27.6 V	⚠ Works; below MPPT at peak heat	1.38
Enphase IQ8A-72-2-US	295–500 W	60 V	32–45 V	44.9 / 27.6 V	⚠ Works; below MPPT at peak heat	1.29

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	754	12,067	6.08
Palmdale	1,835	826	13,212	6.69
Chula Vista	1,696	763	12,211	6.11
Huntington Beach	1,643	739	11,830	5.89
Riverside	1,696	763	12,211	6.21
Santa Clarita	1,724	776	12,413	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 450 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	PVEL (product / brand)	SoCal permits (series)
Universal Solar Americas UNI450-120M-BB	450 W	≥21%	−0.389	42.1	13.56	—	—
Qcells Q.TRON BLK M-G2+ 445	445 W	≈22.8%	−0.276	40.16	13.98	brand 11× (2016–2026)	40
Hyundai Energy Solutions HiN-T450NF(BK)	450 W	≈23.2%	−0.298	39.2	14.53	brand 5× (2017–2025)	37
REC Group REC450AA Pure-RX	450 W	≈22.3%	−0.248	65.1	8.81	brand 9× (2016–2025)	33

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 Universal Solar Americas UNI450-120M-BB?

The Universal Solar Americas datasheet guarantees at least 21% module efficiency for the 450 W class (up to 21.2% for 455 W). 450 W over 2.17 m² equals about 207 W per square meter.

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

PVWatts v8 with typical-year weather gives about 754 kWh per year per 450 W panel in Los Angeles and about 826 kWh in Palmdale (20° roof, facing south, 14% system losses).

How much power does it lose on a hot roof?

With γ = −0.389 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 20.2% 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 3–13 panels per string (Voc at 2 °C = 44.9 V, Vmp at 74 °C cell = 27.6 V). Final design must follow the inverter manual and NEC 690.7.

What does the warranty cover?

30 years linear on performance (manufacturer datasheet).

How big and heavy is it?

75.4 × 44.6 × 1.38 in (1,914 × 1,133 × 35 mm), 52.9 lb (24 kg).

Sources

California Energy Commission — Solar Equipment Lists, PV Module List, Inverter List (snapshot Oct 7, 2026).
Universal Solar Americas — manufacturer datasheet “UNI-450-120M-BB Highest power output Module Efficiency”.
Qcells — manufacturer datasheet “Q.TRON BLK M-G2+ SERIES 415–440 Wp”.
Hyundai Energy Solutions — datasheet [US] NF(BK)(HiN) Series (N TOPCon Bifacial) 435~445W.
Kiwa PVEL — PV Module Reliability Scorecard, Top Performer lists.
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).