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Sunova Brand review

TS-BW54(400)

400 Wp PERC Bifacial 70%
ComparePV verdict

Strong in heat, no clear weak spot

Rank 11,836 of 14,005
Compare panels Datasheet PDF
Power (Wp)
400
Weak · bottom 9%
Efficiency (%)
20.48
Typical · median 20.60%
Density (Wp/m²)
204.8
Typical · median 206.2
Temp (%/°C)
-0.330
Strong · top 10%
Weight (kg)
21.5
Typical · median 22.0 kg
Warranty (yrs)
25
Typical · median 25 yrs

The Sunova TS-BW54 series consists of 54-cell modules designed for installations where maximizing power output per square meter of roof is crucial. The use of bifacial technology allows for energy balance even when sunlight reflects off a bright surface, rather than just directly onto the front panel. In practice, this means better utilization of diffuse light and increased resilience to production drops in challenging conditions.

The half-cut design minimizes internal losses and improves performance under partial shading - important for roofs with chimneys, skylights, or air conditioning systems. The panel also features anti-reflective glass, which facilitates light collection at low angles, typical in winter.

The TS-BW54 is a good choice for single-family homes and small commercial buildings, especially if you want to combine stable performance in warm weather with an aesthetically pleasing installation and predictable energy yields over the years.

Ranking

954 panels in the segment PERC 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.48% 20.60% Typical 11,468
Power density 204.8 206.2 Typical 11,370
Temperature coefficient -0.330 -0.350 Strong · top 10% 8,545
Weight per kWp 53.8 53.0 Typical 7,774
Performance warranty 25 yrs 25 yrs Typical 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 0 caution
Best for

Residential, commercial and shaded-installations.

Strengths
-0.330 %/°C temperature coefficient

Top 10% of the PERC 400-450 W segment, against a median of -0.350.

Notes from the database
  • At 20.5% efficiency, this panel is on par with typical PERC 400-450W modules
  • Power density of 204.8 W/m² matches the PERC 400-450W median
  • Temperature coefficient of -0.33%/°C matches the PERC 400-450W median
  • Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof
  • #11468 for efficiency, #8545 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 400 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.48 % Typical Segment median 20.60%
Vmpp · Impp 31.42 V · 12.74 A Operating point at max power
Voc · Isc 37.18 V · 13.39 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 21.5 kg Typical Typical · median 22.0 kg
Cells 108 · PERC Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.330 %/°C Strong top 10% of its segment
Coefficient Voc · Isc -0.260 · 0.060 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 84.8 % Equals 328 W guaranteed
Degradation 2.00 → 0.55 % 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
-0.330 %/°C against a segment median of -0.350
-
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-BW54(400) 400 W 20.48% -0.330 21.5 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg Cooler, +2.6 pp, +5 yr warranty
JST-EDMH-(445-465)W-TD (450W class) 450 W 23.05% -0.300 20.5 kg +50 W, +2.6 pp, +5 yr warranty
QNN182-HG450-54 450 W 23.04% -0.290 24.0 kg +50 W, +2.6 pp, +5 yr warranty
HY440-N108BDD 450 W 23.04% -0.300 23.5 kg +50 W, +2.6 pp, +5 yr warranty
NLBK-27-450 450 W 23.04% -0.300 22.9 kg +50 W, +2.6 pp, +5 yr warranty
RS41-450NBG-E3 450 W 23.04% -0.290 24.5 kg +50 W, +2.6 pp, +5 yr warranty
TS-BG54(405)-X 405 W 20.74% -0.330 24.2 kg Heavier, +0.3 pp, +5 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +110 W, cooler, +4.5 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +95 W, cooler, +4.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +105 W, cooler, +4.2 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +90 W, cooler, +4.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +100 W, cooler, +4.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +100 W, cooler, +4.0 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
Is the Sunova TS-BW54 series still available for purchase?
The TS-BW54 series has been discontinued by the manufacturer. Panels may still be available from distributors as final warehouse stock, but once that inventory is depleted, it will no longer be possible to purchase an identical model for system expansion. It's worth buying extra panels upfront if you plan to expand your installation later.
How does the bifacial technology in the TS-BW54 differ from a standard monofacial panel?
The bifacial TS-BW54 panel generates power from both its front and rear sides, capturing light reflected off the roof or ground surface. This typically results in extra energy yield, especially when installed above a light-colored roof or on ground-mounted racking with airflow beneath the panel. A standard monofacial panel only produces energy from the front and misses out on this additional gain.
What warranty comes with the Sunova TS-BW54 panels?
The manufacturer provides a 15-year product warranty covering material and workmanship defects, along with a 25-year linear power warranty guaranteeing a specified performance level over time. This is a standard warranty length for panels in this class, though some tier 1 manufacturers offer longer terms.
Are TS-BW54 panels suitable for roofs with partial shading, such as near chimneys?
Yes, the half-cut cell design used in the TS-BW54 splits cells in half, reducing power loss under partial shading from chimneys, dormers, or AC units. Shading on one section of the panel doesn't shut down the entire module, which is a meaningful advantage over older designs without this split.
What is the maximum power output of the TS-BW54 series, and how many panels are needed for a typical installation?
The maximum power rating for the TS-BW54 module is 415 Wp. For a typical residential system of 6-8 kWp, you'd need roughly 15-19 panels, depending on available roof space and orientation relative to the sun.
Do Sunova TS-BW54 panels perform well in high summer temperatures?
The PERC cells used in the TS-BW54 offer solid thermal stability compared to older cell technologies, though they're not as heat-resistant as newer TOPCon or HJT designs. The panel will perform adequately in summer heat, but expect a slightly larger efficiency drop during peak temperatures compared to the latest cell generations.
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