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Heliene 108HC-385 M10 SL All Black (Monofacial)
Heliene Brand review

108HC-385 M10 SL All Black (Monofacial)

385 Wp PERC
ComparePV verdict

Strong in heat, no clear weak spot

Rank 11,513 of 14,005
Compare panels Datasheet PDF
Power (Wp)
385
Typical for its class
Efficiency (%)
19.70
Typical · median 19.90%
Density (Wp/m²)
197.2
Typical · median 199.0
Temp (%/°C)
-0.340
Strong · top 15%
Weight (kg)
21.5
Typical · median 21.4 kg
Warranty (yrs)
25
Typical · median 25 yrs

The Heliene 108HC M10 SL All Black series consists of monocrystalline modules with a 108 half-cut cells arrangement, designed to effectively minimize losses within the module and operate more reliably under partial shading. The use of M10 PERC technology cells supports high efficiency and predictable energy production in typical Polish installation conditions. A key feature is the split junction box, which helps to better distribute current within the panel and reduce losses compared to traditional solutions.

In practice, this series addresses two common problems faced by investors: reduced energy yield under suboptimal conditions and mechanical requirements for roofs and wind/snow zones. The modules feature solar glass with an anti-reflective coating, which supports operation over a wider range of light incidence angles throughout the day. This is a good choice for residential and commercial installations where aesthetics and PID resistance, as well as long-term parameter stability, are important.

Ranking

579 panels in the segment PERC 350-400 W
Metric This panel Median Position in segment Overall rank
Module efficiency 19.70% 19.90% Typical 12,511
Power density 197.2 199.0 Typical 12,493
Temperature coefficient -0.340 -0.350 Strong · top 15% 8,778
Weight per kWp 55.8 55.8 Typical 10,230
Performance warranty 25 yrs 25 yrs Typical 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

6 positive · 1 caution
Best for

Residential, commercial and shaded-installations.

Strengths
-0.340 %/°C temperature coefficient

Top 15% of the PERC 350-400 W segment, against a median of -0.350.

What owners get
PVEL Top Performer 2024 – Verified Reliability

Heliene earned Top Performer status in the 9th edition of the Kiwa PVEL PV Module Reliability Scorecard (2024) – an independent benchmark widely recognized as the most authoritative indicator of PV module durability. This is an objective validation of manufacturing quality, not a marketing claim.

19.5–20.5% Efficiency – Leading Among Comparable PERC Modules

This series outperforms its direct competitor, the DMEGC GH400M10T-B48HST at the same 400 Wp rating, which achieves only 15.48% efficiency – a ~5 percentage-point gap that translates to a meaningfully smaller installation footprint for the same energy yield. The series matches the Solaria PowerXT (20.2%) at a likely lower cost.

Half-Cut 108HC Cells + Split Junction Box

The 108 half-cut cell layout halves the operating current in each string, reducing I²R resistive losses. The split junction box further shortens internal current paths, minimizing CTM losses and improving performance under partial shading conditions.

North American Manufacturing – Short Supply Chain

Factories in Minnesota (USA) and Ontario (Canada) eliminate the risks of extended lead times, import tariffs, and logistical challenges typical of Asian-sourced modules. The series qualifies for programs supporting domestic content requirements in projects covered by the IRA (Inflation Reduction Act).

25-Year Product and Power Warranty with ≥86% Retention

The manufacturer offers a 25-year warranty covering both the product and power output, guaranteeing no less than 86% of nominal power after 25 years. This is on par with segment leaders and meaningfully better than the typical 10/25-year warranties offered by many Tier-2 Asian manufacturers.

Trade-offs
PERC Instead of TOPCon – Older Cell Generation

Since 2022, Heliene has offered a newer 108HC M10 NTYP SL series (TOPCon / N-type) rated at 415–440 Wp with higher efficiency. PERC technology exhibits higher LID (Light-Induced Degradation) rates and a worse temperature coefficient than N-type TOPCon, which over a 25-year horizon translates to meaningfully lower cumulative energy yield. Buyers commissioning a new system in 2026 may want to consider the TOPCon series as the same brand in a newer generation.

Notes from the database
  • Efficiency of 19.7% matches the PERC 0-400W median
  • At 197.2 W/m² power density, roof space requirements are typical for PERC 0-400W panels
  • At -0.34%/°C, hot weather performance is typical for PERC 0-400W panels
  • At 21.5 kg, weight matches the PERC 0-400W median
  • Ranked #12511 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 385 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.70 % Typical Segment median 19.90%
Vmpp · Impp 30.85 V · 12.48 A Operating point at max power
Voc · Isc 36.95 V · 13.24 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 21.4 kg
Cells 108 · PERC Monocrystalline
Coefficient Pmax -0.340 %/°C Strong top 15% of its segment
Coefficient Voc · Isc -0.250 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
Degradation 2.00 → 0.50 % 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
-

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

Heat losses
-0.340 %/°C against a segment median of -0.350
-

Alternatives

All Heliene panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Heliene 108HC-385 M10 SL All Black (Monofacial) 385 W 19.70% -0.340 21.5 kg You are here
GKA210M340W 340 W 23.00% - 16.2 kg Lighter, +3.3 pp, +5 yr warranty
GKA210M360W 360 W 23.00% - 16.2 kg Lighter, +3.3 pp, +5 yr warranty
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg Lighter, +3.3 pp, +5 yr warranty
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg Lighter, +3.3 pp, +5 yr warranty
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg Lighter, +3.3 pp, +5 yr warranty
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg Lighter, +3.3 pp, +5 yr warranty
LX-435M/182-108+ GG 435 W 22.81% -0.240 23.6 kg +50 W, cooler, +3.1 pp
JT435SYk(B) 435 W 22.70% -0.240 23.0 kg +50 W, cooler, +3.0 pp
SPR-MAX3-430-R 430 W 22.70% -0.270 21.2 kg Cooler, +3.0 pp, +15 yr warranty
LX-435M/182-108+ 435 W 22.61% -0.300 21.5 kg +50 W, cooler, +2.9 pp
108HC-380 M10 SL All Black (Monofacial) 380 W 19.50% -0.340 21.5 kg Very close match
108HC-390 M10 SL S1 All Black 390 W 20.00% -0.350 21.5 kg +0.3 pp
108HC-395 M10 SL All Black (Monofacial) 395 W 20.20% -0.340 21.5 kg +10 W, +0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +125 W, cooler, +5.3 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +110 W, cooler, +5.1 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +120 W, cooler, +5.0 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
What warranty does the Heliene 108HC M10 SL All Black come with?
The Heliene 108HC M10 SL All Black series includes a 25-year product warranty and a 25-year linear power output warranty. Heliene, a Tier 1 Canadian manufacturer, guarantees that the module will retain a specified percentage of its rated power throughout that period. This is one of the longer warranty standards in the PERC monocrystalline module category, providing a predictable return on investment over the system's lifetime.
How does the Heliene 108HC M10 SL All Black 400W perform under partial shading?
The series performs well under partial shading conditions. The 108 half-cut cell layout divides the module's electrical string into two independent sections, so shading on one part of the roof does not fully block the entire panel's output. The split junction box further reduces resistive and thermal losses, improving energy yield in real-world conditions where ideal irradiance is not always available.
What does M10 PERC technology mean in the Heliene 108HC series and why does it matter?
M10 refers to the 182×182 mm cell format, which maximizes the active surface area within a compact module footprint. PERC (Passivated Emitter and Rear Cell) adds a passivation layer on the rear of each cell, reflecting unabsorbed photons back into the active region to boost conversion efficiency. Together, these technologies deliver up to 400 W of rated power and high module efficiency, making this series a solid choice for both residential and commercial PV systems.
Is the Heliene 108HC M10 SL All Black suitable for harsh weather conditions, including heavy snow loads?
Yes. The reinforced aluminum frame is engineered to handle high mechanical loads from snow accumulation and wind pressure. The tempered solar glass with an anti-reflective coating also supports performance at low solar angles, which is relevant during winter months in northern climates. These features make the module well-suited for regions with demanding wind and snow zone requirements.
Who is the Heliene 108HC M10 SL All Black series best suited for — is it a good fit for a residential rooftop?
The series is well-suited for both residential and commercial installations. The all-black aesthetic — black cells, black frame, and black backsheet — is particularly popular on visible rooftops where a uniform appearance matters. With up to 400 W per module, you can build a high-output system even on a limited roof area. PID resistance ensures stable electrical parameters across the full 25-year operating life.
Is the Heliene 108HC M10 SL All Black a bifacial module?
No, the 108HC M10 SL All Black is a monofacial module, meaning energy is harvested only from the front side of the panel. This is a deliberate design choice for rooftop installations where the rear of the module has no access to reflected irradiance. The opaque black backsheet reinforces the all-black aesthetic and keeps module weight lower compared to bifacial glass-glass variants.
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