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Phono Solar PS540M8-24/TH
Phono Solar Brand review

PS540M8-24/TH

540 Wp PERC Bifacial 70%
ComparePV verdict

Middle of its segment, short guarantee

Rank 8,980 of 14,129
Compare panels Datasheet PDF
Power (Wp)
540
Typical for its class
Efficiency (%)
20.90
Typical · median 20.90%
Density (Wp/m²)
209.0
Typical · median 209.0
Temp (%/°C)
-0.350
Typical · median -0.350
Weight (kg)
28.0
Typical · median 28.3 kg
Warranty (yrs)
25
Weak · bottom 22%

The Phono Solar Twinplus Module Series HIGH EFFICIENCY MONO-PERC BM6-10B-T (540-560W) is designed for maximum energy yield from the same surface area - especially where maximum output per square meter matters and stable performance in real-world conditions is crucial. The use of half-cell PERC technology reduces connection losses and helps maintain performance when parts of the module are intermittently shaded. Additionally, multi busbar technology improves current collection from the cells and supports higher efficiency in practice, not just in the lab. The module is also prepared for demanding environments - enhanced PID resistance and optimized electrical design reduce the risk of hot spots, contributing to installation longevity. This is an excellent choice for PV farms, commercial rooftops, and large residential systems, where reliable output in harsh conditions and low light matters, along with safe operation for years.

Ranking

709 panels in the segment PERC 500-550 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.90% 20.90% Typical 10,148
Power density 209.0 209.0 Typical 10,176
Temperature coefficient -0.350 -0.350 Typical 10,489
Weight per kWp 51.9 53.0 Typical 5,262
Performance warranty 25 yrs 30 yrs Weak · bottom 22% 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

4 positive · 3 caution
Best for

Commercial, utility-scale, shaded-installations and residential.

Not ideal for

Owners who want a long output guarantee.

Watch-outs
25 year performance warranty

Bottom 22% of the PERC 500-550 W segment, against a median of 30 yrs.

What owners get
High energy yield from bifacial design

The bifacial construction allows for additional rear-side power gain of up to 25%, depending on ground albedo and mounting height, meaningfully boosting annual energy yield on high-reflectivity surfaces (gravel, white roofing, snow).

Proven Tier-1 bankability

Phono Solar has held BNEF Tier 1 status continuously since 2014, confirming that its modules have secured non-recourse project financing from independent commercial banks on projects above 10 MW. The manufacturer is backed by the Sinomach group (Fortune Global 500), reducing risk for institutional investors.

Efficiency on par with segment leaders

Efficiency up to 21.68% is essentially on par with its closest peer comparables - Exiom EX540-560M(B) (21.7%), Fellow Energy FE72-18X (21.7%), and Premier Energies 144 HC PERC Bifacial (21.67%) - showing the series is not technologically behind the best offers in the 540-560W power class.

Enhanced PID and hot-spot resistance

The optimized electrical design, combined with multi-busbar technology and half-cut cells, reduces losses under partial shading and hot-spot risk, directly supporting long-term durability alongside the 25-year power warranty.

Trade-offs
Production discontinued in 2024

The Twinplus BM6-10B-T series was withdrawn from the lineup (released 2021, discontinued 2024), meaning limited availability of matching replacement modules for existing array expansions and potentially longer lead times for future warranty service claims.

PERC technology superseded by N-type

Mono-PERC cells, while solid performers, are an older-generation technology compared to N-type TOPCon/HJT, which offer lower LID/LeTID degradation and better high-temperature behavior - the series' discontinuation coincided with the market's broader shift toward N-type cells.

Notes from the database
  • Efficiency of 20.9% matches the PERC 500-550W median
  • At 209.0 W/m² power density, roof space requirements are typical for PERC 500-550W panels
  • At -0.35%/°C, hot weather performance is typical for PERC 500-550W panels
  • Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface
  • Ranked #10148 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 540 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.90 % Typical Segment median 20.90%
Vmpp · Impp 41.35 V · 13.06 A Operating point at max power
Voc · Isc 49.39 V · 13.62 A Sizes the string length
Dimensions 2278×1134×35 mm · 2.58 m² of roof
Weight 28.0 kg Typical Typical · median 28.3 kg
Cells 144 · PERC Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.350 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.280 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Weak bottom 22% · median 30 yrs
End-of-warranty output 84.8 % Equals 443 W guaranteed
Degradation 2.00 → 0.55 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Phono Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 540 Wp appear here. The rest cover the whole series.

Power-Voltage (P-V) Curves Power-Voltage (P-V) Curves Whole series

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
-0.350 %/°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.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Phono Solar PS540M8-24/TH 540 W 20.90% -0.350 28.0 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, +4.1 pp, +5 yr warranty
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +3.9 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, +3.9 pp, +5 yr warranty
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, +3.8 pp, +5 yr warranty
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg Cooler, +3.8 pp, +5 yr warranty
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, +3.7 pp, +5 yr warranty
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +3.6 pp
PS535M8GF-24/TH 535 W 20.71% -0.330 32.0 kg Cooler, heavier, +5 yr warranty
PS545M8-24/TH 545 W 21.10% -0.350 28.0 kg +0.2 pp
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +110 W, cooler, +4.3 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +105 W, cooler, +4.1 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +100 W, cooler, +3.9 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +95 W, cooler, +3.7 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +90 W, cooler, +3.5 pp

Found 2327 panels of the same or similar size to this one, within ±10 mm. See them here Found 2369 panels of the same or similar size to this one, within ±25 mm. See them here Found 2383 panels of the same or similar size to this one, within ±50 mm. See them here Found 2548 panels of the same or similar size to this one, within ±100 mm. See them here

About the Twinplus Module Series HIGH EFFICIENCY MONO-PERC BM6-10B-T (540-560W) series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

Is the Phono Solar Twinplus BM6-10B-T (540-560W) series still available for purchase?
The BM6-10B-T series has been discontinued and is no longer actively manufactured by Phono Solar. Limited stock may still be available through distributors' warehouses, but availability is patchy. Before committing to a purchase, verify inventory with your supplier and consider current Phono Solar models as an alternative.
How much extra energy can the bifacial design of the Twinplus BM6-10B-T actually deliver?
The BM6-10B-T bifacial modules capture reflected irradiance on their rear side, delivering an additional 5-25% energy yield compared to a monofacial equivalent. The actual gain depends on the albedo of the surface beneath the array - light-colored membranes, gravel, or snow-covered ground maximize the benefit. Ground-mount systems and flat roofs with reflective surfaces get the most out of the bifacial design.
What warranties does Phono Solar offer on the Twinplus BM6-10B-T panels?
Phono Solar provides a 12-year product warranty covering material and workmanship defects, plus a 25-year linear power output warranty guaranteeing at least 80% of rated power after 25 years of operation. These terms are in line with leading Tier 1 manufacturers and reflect Phono Solar's strong bankability for project financing.
How do the Twinplus BM6-10B-T panels perform during hot summer days?
The module's power temperature coefficient is -0.35%/°C, meaning each degree above 25°C (STC) reduces output by 0.35%. This is a competitive figure for PERC technology and translates to stable energy production during extended heat waves. Enhanced PID resistance further protects the modules from performance degradation in hot, humid operating conditions.
What is the half-cut cell and multi-busbar technology in the Twinplus BM6-10B-T, and why does it matter?
Half-cut cells reduce operating current by half, lowering resistive (I²R) losses and heat build-up, which improves both real-world efficiency and long-term reliability. The 10-busbar (10BB) design shortens current collection paths and reduces the risk of microcracks and hot spots. Together, these features deliver noticeably higher energy yield compared to older 5-busbar full-cell PERC modules.
What type of installations are the Phono Solar Twinplus BM6-10B-T 540-560W panels best suited for?
With up to 560W peak power and large module dimensions, the BM6-10B-T is best suited for utility-scale solar farms, commercial flat-roof installations, and large prosumer systems where maximizing watts per square meter is critical. The bifacial design provides an additional advantage in ground-mount systems with reflective ground surfaces. Due to the module's large size and weight, it is less practical for small residential pitched rooftops.
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