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S-Energy Brand review

SL45-60BDI-370Z

370 Wp PERC Bifacial 70%
ComparePV verdict

Warranty pick, heavy for its output

Rank 12,217 of 14,005
Compare panels Datasheet PDF
Power (Wp)
370
Typical for its class
Efficiency (%)
20.31
Strong · top 14%
Density (Wp/m²)
203.1
Strong · top 15%
Temp (%/°C)
-0.360
Typical · median -0.350
Weight (kg)
22.5
Weak · 1.1 kg above median
Warranty (yrs)
30
Strong · top 13%

The SL45-60BDI series redefines performance standards thanks to the use of bifacial technology, which enables the generation of additional energy from radiation reflected from the ground. This solution is ideal for demanding investors seeking maximum yields from ground-mounted installations and large commercial projects. A key differentiator is the double tempered glass-glass construction, which completely replaces the traditional backsheet, radically increasing the modules' resistance to moisture, ammonia corrosion, and extreme mechanical loads. The use of this innovative design eliminates the risk of PID degradation, ensuring long-term stability of power output even after many years of operation in harsh environmental conditions. These panels effectively solve the problem of premature component aging in aggressive environments, while offering exceptional sealing and structural durability that clearly distinguishes them from standard monofacial products. By choosing the SL45-60BDI series, you gain confidence in stable system operation in locations with high albedo, where every additional watt of energy harvested from the rear surface of the module counts. This product is dedicated to professional photovoltaic farms and modern carport-type systems, where the highest materials engineering must go hand in hand with reliability.

Ranking

579 panels in the segment PERC 350-400 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.31% 19.90% Strong · top 14% 11,752
Power density 203.1 199.0 Strong · top 15% 11,759
Temperature coefficient -0.360 -0.350 Typical 12,345
Weight per kWp 60.8 55.8 Weak · bottom 23% 12,539
Performance warranty 30 yrs 25 yrs Strong · top 13% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

3 positive · 1 caution
Best for

Commercial.

Not ideal for

Weight-limited structures.

Strengths
30 year performance warranty

Top 13% of the PERC 350-400 W segment, against a median of 25 yrs.

20.31% module efficiency

Top 14% of the PERC 350-400 W segment, against a median of 19.90%.

203.1 watts per square metre

Top 15% of the PERC 350-400 W segment, against a median of 199.0.

Watch-outs
60.8 kg per kWp

Bottom 23% of the PERC 350-400 W segment, against a median of 55.8.

Notes from the database
  • 20.3% module efficiency - 0.9pp better than the PERC 0-400W median of 19.4%
  • At 203.1 W/m² power density, this panel generates 8.7 W/m² more per unit area than PERC 0-400W median (194.4 W/m²)
  • Temperature coefficient of -0.36%/°C matches the PERC 0-400W median
  • Weight of 22.5 kg is 2.0 kg above PERC 0-400W median (20.5 kg) - verify structural support
  • 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 370 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.31 % Strong Segment median 19.90%
Vmpp · Impp 34.20 V · 10.82 A Operating point at max power
Voc · Isc 41.00 V · 11.34 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1755×1038×30 mm · 1.82 m² of roof
Weight 22.5 kg Weak Weak · 1.1 kg above median
Cells 60 · PERC Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.360 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.290 · 0.050 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Strong top 13% · median 25 yrs
End-of-warranty output 85.0 % Equals 314 W guaranteed
Degradation 2.00 → 0.45 % 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
-0.360 %/°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 S-Energy panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
S-Energy SL45-60BDI-370Z 370 W 20.31% -0.360 22.5 kg You are here
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +2.8 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +2.8 pp
GKA210M320W 320 W 23.00% - 16.2 kg -50 W, lighter, +2.7 pp
GKA210M340W 340 W 23.00% - 16.2 kg -30 W, lighter, +2.7 pp
GKA210M360W 360 W 23.00% - 16.2 kg -10 W, lighter, +2.7 pp
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg +10 W, lighter, +2.7 pp
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg +30 W, lighter, +2.7 pp
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg +30 W, lighter, +2.7 pp
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg +10 W, lighter, +2.7 pp
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg Cooler, +2.3 pp, +10 yr warranty
SL45-60BDI-365Z 365 W 20.04% -0.360 22.5 kg -0.3 pp
SL45-60BDI-375Z 375 W 20.59% -0.360 22.5 kg +0.3 pp
SL45-60BDI-380Z 380 W 20.86% -0.360 22.5 kg +10 W, +0.6 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +140 W, cooler, +4.7 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +125 W, cooler, +4.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +135 W, cooler, +4.4 pp

Found 210 panels of the same or similar size to this one, within ±10 mm. See them here Found 271 panels of the same or similar size to this one, within ±25 mm. See them here Found 332 panels of the same or similar size to this one, within ±50 mm. See them here Found 4151 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the S-Energy SL45-60BDI series still available for purchase?
The SL45-60BDI series has been discontinued by S-Energy and is no longer actively manufactured. Limited new stock may still be available through distributors. Before purchasing, verify that panels are brand new, come with full technical documentation, and confirm the supplier can honor the 12-year product warranty.
What warranties does the S-Energy SL45-60BDI come with?
S-Energy provides a 12-year product warranty and a 30-year linear power output warranty for the SL45-60BDI series. After 30 years of operation, the module is guaranteed to retain at least 84.95% of its rated output power. These terms exceed the industry-standard 10/25-year coverage and reflect the durability of the glass-glass construction over conventional polymer backsheets.
How much extra energy does the bifacial technology in the SL45-60BDI generate compared to a monofacial module?
Bifacial technology allows the panel to produce electricity from both the front side and the rear side, which captures light reflected off the ground surface (albedo effect). In ground-mounted systems with reflective substrates such as gravel, sand, or concrete, the bifacial gain typically ranges from 5% to 20% above the rated 380 Wp. Actual yield depends on tilt angle, mounting height above ground, and surface reflectivity.
Why do the SL45-60BDI panels use glass-glass construction instead of a traditional backsheet, and what difference does it make?
The glass-glass design replaces the polymer backsheet with a second layer of tempered glass, eliminating the main degradation pathways: moisture ingress, ammonia corrosion, and PID (Potential Induced Degradation). In standard PERC modules with a polymer backsheet, PID can cause measurable power loss within a few years of operation in harsh environments. The SL45-60BDI maintains stable power output throughout its entire rated service life.
What type of solar installation is the S-Energy SL45-60BDI best suited for?
The SL45-60BDI is designed for ground-mounted utility-scale and commercial systems, solar farms, and carport structures where bifacial energy harvesting and high mechanical durability deliver the greatest advantage. Its ammonia resistance also makes it suitable near livestock facilities. Due to its larger footprint and weight of approximately 22.5 kg, it is not optimized for small residential rooftop installations.
How does the 380 Wp rated power of the SL45-60BDI compare to current market offerings?
At the time of its release, 380 Wp was a competitive output for commercial bifacial PERC modules. Today's market has shifted toward panels in the 420 to 440 Wp range and above, leveraging TOPCon or HJT cell technology for higher efficiency and power density. As a discontinued product, the SL45-60BDI is now a legacy option; new commercial projects prioritizing maximum power density should consider current-generation modules.
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