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Sunova Brand review

TS-BGT54(420)

420 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 10,260 of 14,005
Compare panels Datasheet PDF
Power (Wp)
420
Weak · bottom 16%
Efficiency (%)
21.51
Weak · bottom 20%
Density (Wp/m²)
215.1
Weak · bottom 19%
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
24.2
Weak · 2.2 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Sunova TS-BGT54 All Black (420-440 W) series is a fully black, bifacial module that combines premium aesthetics with a higher energy yield in typical rooftop conditions. It utilizes N-type cells, which ensure the panel maintains its parameters over time and operates more stably at high temperatures, resulting in predictable energy production over the years. A key advantage is the dual-glass construction - the glass on both sides increases resistance to micro-cracks and harsh environmental conditions, while also supporting bifacial operation. The module utilizes bifaciality, allowing it to "capture" energy from reflected light (e.g., from a reflective membrane, metal, or gravel), which is particularly useful when the roof surface limits the number of panels. For installers, hot-spot protection is also important, reducing the risk of losses due to partial shading. This is a good choice for modern homes, carports, and small commercial installations, where aesthetics and durability are equally important.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.51% 22.00% Weak · bottom 20% 7,894
Power density 215.1 220.2 Weak · bottom 19% 7,882
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 57.6 51.4 Weak · bottom 10% 11,319
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential, commercial, shaded-installations and hot-climate.

Not ideal for

Weight-limited structures, roofs where every square metre has to count and tight roof space.

Watch-outs
57.6 kg per kWp

Bottom 10% of the TOPCon 400-450 W segment, against a median of 51.4.

215.1 watts per square metre

Bottom 19% of the TOPCon 400-450 W segment, against a median of 220.2.

21.51% module efficiency

Bottom 20% of the TOPCon 400-450 W segment, against a median of 22.00%.

Notes from the database
  • Efficiency of 21.5% matches the TOPCon 400-450W median
  • Power density of 215.1 W/m² is 5.1 W/m² below TOPCon 400-450W median (220.2 W/m²) - needs more roof space
  • Temperature coefficient of -0.30%/°C matches the TOPCon 400-450W median
  • At 24.2 kg, this panel is 2.2 kg heavier than the TOPCon 400-450W median (22.0 kg) - more demanding for installation crews
  • Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface

Specifications

Open datasheet PDF
Nominal power (Pmax) 420 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.51 % Weak Segment median 22.00%
Vmpp · Impp 31.91 V · 13.16 A Operating point at max power
Voc · Isc 37.58 V · 13.93 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×35 mm · 1.95 m² of roof
Weight 24.2 kg Weak Weak · 2.2 kg above median
Cells 108 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.280 · 0.040 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 367 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.300 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Alternatives

All Sunova panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Sunova TS-BGT54(420) 420 W 21.51% -0.300 24.2 kg You are here
JST-EDMH-(445-465)W-TD (465W class) 465 W 23.81% -0.300 20.5 kg +45 W, lighter, +2.3 pp
LX-465M/182R-96+ GG 465 W 23.80% -0.260 23.5 kg +45 W, cooler, +2.3 pp
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg +50 W, +2.2 pp, +10 yr warranty
AIKO-A470-MAH54Mb 470 W 23.60% -0.260 21.5 kg +50 W, cooler, +2.1 pp
AIKO-A460-MAH54Mb 460 W 23.60% -0.290 20.5 kg +40 W, lighter, +2.1 pp
HSM-BD54-LA470 470 W 23.60% -0.260 21.5 kg +50 W, cooler, +2.1 pp
TS-BW54(400) 400 W 20.48% -0.330 21.5 kg Hotter, -1.0 pp, -5 yr warranty
TS-BG54(405)-X 405 W 20.74% -0.330 24.2 kg -15 W, hotter, -0.8 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +90 W, cooler, +3.5 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +75 W, cooler, +3.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +85 W, cooler, +3.2 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +70 W, cooler, +3.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +80 W, cooler, +3.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +80 W, cooler, +3.0 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
How much extra energy does bifaciality really provide in Sunova TS-BGT54 All Black panels?
The additional yield depends on the surface beneath the panels - light-colored gravel, roofing membrane, or white metal sheeting reflect light that reaches the rear side of the module. Under typical rooftop conditions, you can expect a few percent more energy than with a monofacial panel, without adding more modules to the roof. The gain is highest when panels are elevated or mounted over bright, reflective surfaces.
What warranty comes with Sunova TS-BGT54 All Black panels?
The manufacturer offers a 15-year product warranty along with a 30-year power output warranty. This means the module should maintain its guaranteed power level over three decades, while any material or manufacturing defects during the first 15 years are covered by the manufacturer. This is comparable to premium-tier offerings in the N-type module segment.
Do Sunova TS-BGT54 All Black panels perform well in high summer roof temperatures?
Yes, the N-type TOPCon cells used in this series have a lower temperature coefficient than older P-type cells, meaning less power loss as panels heat up on hot days. As a result, summer energy production remains more stable and predictable on hot rooftops compared to cheaper modules built on older cell technology.
Is Sunova a Tier 1 manufacturer, and does that matter when choosing panels?
Sunova is not currently listed as a Tier 1 manufacturer under the Bloomberg NEF classification, which mainly reflects bank financing criteria rather than product quality itself. The TS-BGT54 All Black series uses proven TOPCon technology and a dual-glass build, so in terms of technical performance and durability it competes with modules from higher-ranked manufacturers, though it's worth checking when applying for installation financing.
Are Sunova All Black panels suitable for roofs with limited surface area?
Yes, this is one of the series' key advantages. With module power up to 440 Wp plus the extra yield from bifacial operation, you can achieve higher system power with fewer panels than with older, monofacial modules. This makes it a good fit for small single-family home roofs, carports, and small commercial installations.
Does the dual-glass construction in TS-BGT54 panels improve resistance to mechanical damage?
Yes, glass on both sides of the module, instead of a typical plastic backsheet, significantly increases resistance to cell microcracks, moisture ingress, and long-term UV degradation. This construction also withstands larger temperature swings and snow loads better, contributing to a longer service life under harsh weather conditions.
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