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Meyer Burger Brand review

MB_WG144Cyz_545

545 Wp HJT Bifacial 90%
ComparePV verdict

Middle of its segment, weak in heat

Rank 4,712 of 14,005
Compare panels Datasheet PDF
Power (Wp)
545
Strong · top 1%
Efficiency (%)
20.20
Weak · bottom 4%
Density (Wp/m²)
202.4
Weak · bottom 4%
Temp (%/°C)
-0.259
Weak · bottom 2%
Weight (kg)
34.4
Weak · 7.3 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Meyer Burger Panel+ White XL series consists of modules designed for maximum energy yield in real roof conditions - even under poor sunlight, higher temperatures, and partial soiling. A key advantage is the combination of n-type HJT cells with the company's proprietary SmartWire connection technology, which ensures high operational stability and reduces the risk of power drops over time. In practice, you get more energy production from the same area without having to use oversized modules that make logistics and installation more difficult.

The Panel+ White XL also stands out for its resistance to micro-cracks and attention to the durability of the layers, which will be appreciated by investors focused on long-term operation. Its clean aesthetics and refined finish make it a good choice for modern roofs - where the appearance of the installation is as important as its parameters. The series is particularly suitable for homes, small businesses, and premium projects where reliability and predictable performance are a priority, rather than just the initial price.

Ranking

41 panels in the segment HJT 500-550 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.20% 22.90% Weak · bottom 4% 11,956
Power density 202.4 229.5 Weak · bottom 4% 11,881
Temperature coefficient -0.259 -0.240 Weak · bottom 2% 480
Weight per kWp 63.1 53.1 Weak · bottom 4% 12,852
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 6 caution
Best for

Residential, commercial and hot-climate.

Not ideal for

Hot climates, tight roof space and roofs where every square metre has to count.

Watch-outs
-0.259 %/°C temperature coefficient

Bottom 2% of the HJT 500-550 W segment, against a median of -0.240. Ranked 480th in the whole database.

20.20% module efficiency

Bottom 4% of the HJT 500-550 W segment, against a median of 22.90%. Ranked 11,956th in the whole database.

202.4 watts per square metre

Bottom 4% of the HJT 500-550 W segment, against a median of 229.5. Ranked 11,881st in the whole database.

What owners get
N-type HJT cells + SmartWire (SWCT)

Combining n-type heterojunction (HJT) cells with the proprietary SmartWire (SWCT) interconnection technology instead of conventional busbars reduces microcracks and resistive losses, resulting in lower LID/LeTID degradation and more stable output at high temperatures compared to PERC panels.

30-year product and power warranty

The manufacturer specifies 30 years of both product and power warranty - well above the segment standard, where typical values are 12-15 years for product warranty and 25-30 years for linear power warranty.

Bifacial design

The bifacial construction enables additional energy yield from the rear side of the module, which is particularly beneficial on light-colored/reflective roof surfaces and in ground-mount installations.

Swiss Tier-1 manufacturer with long history

Meyer Burger is a Swiss company headquartered in a country with strong quality standards, founded in 1953, and for years operated as a recognized Tier-1 supplier in the European market, which historically built investor confidence in its HJT technology.

Light aesthetic for premium roofs

The white frame and backsheet (White), combined with microcrack resistance, deliver a clean, understated installation appearance - an advantage for premium projects where roof aesthetics matter alongside electrical parameters.

Trade-offs
Production discontinued, service risk

The series was discontinued (2024-2025), and Meyer Burger Technology AG itself filed for insolvency in Germany and Chapter 11 bankruptcy in the US in 2025, halting module production in Arizona and selling its manufacturing equipment to Waaree. This means genuinely limited availability of service, spare parts, and warranty support for end customers.

Stated 30-year warranty carries risk

Despite the formally stated 30-year product and power warranty, the manufacturer's 2025 bankruptcy calls into question the actual enforceability of these obligations over coming decades - a typical risk after a renewable energy manufacturer's insolvency, when warranty claims fall into bankruptcy proceedings or get assumed by another entity under different terms.

Lower efficiency than competitors

Efficiency of 20.1-20.8% is noticeably lower than comparable 540-560 Wp modules from other manufacturers, e.g. Exiom EX540-560M(B) (21.7%), Fellow Energy FE72-18X (21.7%), or Premier Energies 144 HC PERC Bifacial (21.67%) - a gap of roughly 0.9-1.6 percentage points means less power from the same roof area.

Notes from the database
  • Module efficiency of 20.2% is 2.7pp below average for HJT 500-550W panels (median: 22.9%)
  • Power density of 202.4 W/m² is 27.1 W/m² below HJT 500-550W median (229.5 W/m²) - needs more roof space
  • Temperature coefficient of -0.26%/°C matches the HJT 500-550W median
  • At 34.4 kg, this panel is 7.3 kg heavier than the HJT 500-550W median (27.1 kg) - more demanding for installation crews
  • 90% bifaciality enables rear-side power generation, boosting yield by 4-14% on reflective surfaces

Specifications

Open datasheet PDF
Nominal power (Pmax) 545 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.20 % Weak Segment median 22.90%
Vmpp · Impp 45.40 V · 12.00 A Operating point at max power
Voc · Isc 53.40 V · 12.80 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2375×1134×35 mm · 2.69 m² of roof
Weight 34.4 kg Weak Weak · 7.3 kg above median
Cells 144 · HJT Monocrystalline
Bifaciality 90 % Rear output as a share of front
Coefficient Pmax -0.259 %/°C Weak bottom 2% of its segment
Coefficient Voc · Isc -0.234 · 0.033 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 93.2 % Equals 508 W guaranteed
Degradation 1.00 → 0.20 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Meyer Burger in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 545 Wp appear here. The rest cover the whole series.

I-V curves at different irradiations I-V curves at different irradiations Whole series Meyer Burger warranty Meyer Burger warranty 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
-0.259 %/°C against a segment median of -0.240
-
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
Meyer Burger MB_WG144Cyz_545 545 W 20.20% -0.259 34.4 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg -35 W, lighter, +4.8 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg -50 W, lighter, +4.6 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +15 W, lighter, +4.6 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg -40 W, lighter, +4.5 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +10 W, lighter, +4.4 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg -45 W, lighter, +4.3 pp
MB_WG144Cyz_540 540 W 20.10% -0.259 34.4 kg Very close match
MB_WG144Cyz_550 550 W 20.40% -0.259 34.4 kg Very close match
MB_WG144Cyz_555 555 W 20.60% -0.259 34.4 kg +10 W, +0.4 pp
MB_WG144Cyz_560 560 W 20.80% -0.259 34.4 kg +15 W, +0.6 pp
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +105 W, lighter, +5.0 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +135 W, lighter, +5.0 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +130 W, lighter, +4.8 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +100 W, lighter, +4.8 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +155 W, +4.8 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +150 W, +4.7 pp

Found 1119 panels of the same or similar size to this one, within ±10 mm. See them here Found 1125 panels of the same or similar size to this one, within ±25 mm. See them here Found 1236 panels of the same or similar size to this one, within ±50 mm. See them here Found 4166 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Meyer Burger Panel+ White XL series still available for purchase?
The Panel+ White XL series has been discontinued and is no longer available as a new product. Meyer Burger filed for bankruptcy in 2025 following the loss of its key customer, and the Goodyear, Arizona manufacturing facility ceased operations. Units may still appear on the secondary market or through distributor clearance sales, but buyers should verify warranty support availability before purchasing, as the manufacturer's ability to honor claims is uncertain.
What is HJT and SmartWire technology in the Meyer Burger Panel+ White XL, and is it worth it?
HJT (Heterojunction) combines n-type crystalline silicon with thin amorphous silicon layers, reducing recombination losses and improving efficiency under real-world temperatures. SmartWire Connection Technology (SWCT) replaces conventional busbars with a mesh of fine wires, cutting cell shading by roughly 30% and dramatically improving resistance to micro-cracks. The practical result is higher annual energy yield and lower long-term power degradation compared to standard PERC modules.
How does the Meyer Burger Panel+ White XL 560W perform when the roof gets hot in summer?
Very well compared to most alternatives. HJT cells carry a Pmax temperature coefficient of approximately -0.26%/°C, noticeably lower than typical PERC cells at -0.35%/°C. On a hot summer day, a 560 Wp module loses proportionally less power than competing technologies, which translates to a measurably better LCOE over the system lifetime, especially in climates with hot, sun-rich summers.
Is the Meyer Burger Panel+ White XL a bifacial panel, and what does that mean in practice?
Yes, the Panel+ White XL is a bifacial module, meaning the rear side also generates power from reflected irradiance. On a pitched residential roof without a bright surface underneath, the rear-side gain is typically modest, around 5-10%. Bifacial gains are more significant in ground-mount or flat-roof installations with light-colored membranes. For pitched roofs, the panel's front-side efficiency exceeding 20% remains the primary performance driver.
What warranty does the Meyer Burger Panel+ White XL series carry?
Meyer Burger originally offered a 30-year product warranty covering manufacturing defects and a 30-year power output warranty, among the longest terms available in the residential PV market. However, given Meyer Burger's 2025 bankruptcy filing, the enforceability of these warranties is uncertain. Buyers acquiring panels from secondary sources should confirm whether a distributor or installer provides independent warranty insurance before committing to a purchase.
What type of installation is the Meyer Burger Panel+ White XL best suited for?
The series was designed for premium residential and small-commercial installations where both performance and aesthetics matter. Its white finish and refined look made it a strong choice for modern rooftops. With up to 560 Wp per module, it allowed a high-output system to be built on a limited roof area. Strong resistance to micro-cracks and solid low-irradiance performance made it particularly well-suited for Central European climates with frequent overcast conditions.
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