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DAS Solar DAS-DH144NA-555
DAS Solar Brand review

DAS-DH144NA-555

555 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, needs the roof space

Rank 5,865 of 14,005
Compare panels Datasheet PDF
Power (Wp)
555
Weak · bottom 5%
Efficiency (%)
21.50
Weak · bottom 7%
Density (Wp/m²)
214.8
Weak · bottom 7%
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
31.3
Weak · bottom 16%
Warranty (yrs)
30
Typical · median 30 yrs

The DAS Solar DAS-DH144NA series are bifacial modules featuring a double glass structure, designed for high energy production not only from the front side but also from the rear - where reflected light utilisation (bright roof, gravel, membrane, ground) plays a key role. The use of N-type cells helps limit performance degradation over time and stabilises the installation's operation in demanding conditions. The double glass construction and symmetrical layer arrangement increase resistance to typical operational issues, such as micro-prestresses and accelerated material aging, which is crucial for projects focused on a long return on investment horizon. These modules also stand out for their good performance under low-light conditions, making them better suited for cloudy days, common in Poland's climate. This is a sensible choice for PV farms, commercial installations, and large rooftops, where reliable yield, durability, and real competitive advantage over traditional single-sided panels are key.

Ranking

1,018 panels in the segment TOPCon 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.50% 22.44% Weak · bottom 7% 7,958
Power density 214.8 224.4 Weak · bottom 7% 8,034
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 56.4 53.8 Weak · bottom 16% 10,639
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 · 4 caution
Best for

Commercial and utility-scale.

Not ideal for

Roofs where every square metre has to count, tight roof space and weight-limited structures.

Watch-outs
214.8 watts per square metre

Bottom 7% of the TOPCon 550-600 W segment, against a median of 224.4. Ranked 8,034th in the whole database.

21.50% module efficiency

Bottom 7% of the TOPCon 550-600 W segment, against a median of 22.44%. Ranked 7,958th in the whole database.

56.4 kg per kWp

Bottom 16% of the TOPCon 550-600 W segment, against a median of 53.8.

What owners get
Up to 23.2% Efficiency – Among the Segment's Best

A peak efficiency of 23.2% places the series on par with the Tongwei TWMND-72HD (23.2%) and just below the Powitt M10 MONO (23.23%), translating to meaningfully higher energy yield from the same rooftop or ground-mount footprint compared to PERC or older N-type modules.

Low Degradation with N-type TOPCon (<0.4%/year)

N-type TOPCon cells deliver an annual degradation rate below 0.4% and a Pmax temperature coefficient of -0.32%/°C – outperforming typical PERC modules at -0.35%/°C. This results in higher yield on hot days and more stable production throughout the full 30-year system life.

Bifacial Energy Gain of Up to 30% Extra

With a bifaciality factor of ~80% and a double glass construction, the module can reach a peak output of approximately 679 W (under ground albedo and irradiance conditions specified in the manufacturer's datasheet). This is a significant advantage over conventional monofacial modules in agri-PV installations, and on white membranes, gravel, or light-colored concrete surfaces.

30-Year Power Warranty – 87.4% Output Guaranteed After 30 Years

The manufacturer guarantees retention of at least 87.4% of nominal power after 30 years of operation. This is complemented by a 15-year product warranty covering material and workmanship defects – a standard aligned with leading Tier-1 manufacturers in the N-type double glass segment.

BNEF Tier 1 for Four Consecutive Quarters in 2025

DAS Solar has maintained BNEF Tier-1 bankable status continuously for all four quarters of 2025 and ranks 8th globally in PV module shipments for H1 2024 (per InfoLink Consulting). This confirms bankability – non-recourse debt financing from independent banks is a realistic option for projects using these modules.

Trade-offs
Short Brand History vs. a 30-Year Warranty

DAS Solar was founded in 2018, giving it only ~8 years of market history against a 30-year power warranty. Unlike Trina Solar (est. 1997) or JA Solar (est. 2005), the absence of a long-term track record can be raised as a risk factor by insurers or project finance banks underwriting large-scale PV projects – even with BNEF Tier-1 status.

Notes from the database
  • Efficiency of 21.5% is 0.9pp below the TOPCon 550-600W median (22.4%)
  • Power density of 214.8 W/m² is 9.6 W/m² below TOPCon 550-600W median (224.4 W/m²) - needs more roof space
  • At -0.30%/°C, hot weather performance is typical for TOPCon 550-600W panels
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
  • #7958 for efficiency, #6093 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 555 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.50 % Weak Segment median 22.44%
Vmpp · Impp 42.37 V · 13.10 A Operating point at max power
Voc · Isc 51.26 V · 13.77 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2278×1134×30 mm · 2.58 m² of roof
Weight 31.3 kg Weak Weak · bottom 16%
Cells 144 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 485 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by DAS Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 555 Wp appear here. The rest cover the whole series.

30-Year Linear Power Warranty (Standard vs DH144NA) 30-Year Linear Power Warranty (Standard vs DH144NA) Whole series P-V Curve P-V Curve 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
-0.300 %/°C against a segment median of -0.290
-
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
DAS Solar DAS-DH144NA-555 555 W 21.50% -0.300 31.3 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +3.5 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +3.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +3.2 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +3.1 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg Cooler, 15 kg lighter, +2.9 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg Cooler, lighter, +2.9 pp
DAS-WH144PA-540W 540 W 20.90% -0.340 27.3 kg Hotter, lighter, -5 yr warranty
DAS-DH144PA-545W 545 W 21.10% -0.340 31.4 kg -10 W, hotter, -0.4 pp
DAS-DH144PA-550W 550 W 21.30% -0.340 31.4 kg Hotter
DAS-DH144PA-560W 560 W 21.70% -0.340 31.4 kg Hotter
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +95 W, lighter, +3.7 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +90 W, lighter, +3.5 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +85 W, lighter, +3.3 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +80 W, lighter, +3.1 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +75 W, cooler, +2.9 pp

Found 2326 panels of the same or similar size to this one, within ±10 mm. See them here Found 2368 panels of the same or similar size to this one, within ±25 mm. See them here Found 2382 panels of the same or similar size to this one, within ±50 mm. See them here Found 2547 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty is provided for the DAS Solar DAS-DH144NA panels?
The DAS-DH144NA series comes with a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. After 30 years, the panel is guaranteed to retain at least 87.4% of its initial rated power. This is one of the longest warranties available on the market and is a key factor when calculating the return on investment for a utility-scale PV farm or commercial installation.
Are the DAS-DH144NA panels suitable for ground-mounted systems and utility-scale PV farms?
Yes, the DAS-DH144NA series is designed primarily for large-scale ground-mounted installations and utility PV farms. The bifacial double-glass construction allows the module to harvest energy from light reflected off bright ground surfaces — such as gravel, white membrane, or light-gray soil — meaningfully increasing annual energy yield. The panel withstands snow loads up to 5,400 Pa and wind loads up to 2,400 Pa, ensuring structural integrity under demanding field conditions.
How does the TOPCon technology used in the DAS-DH144NA differ from standard PERC cells?
N-type TOPCon cells feature a lower temperature coefficient of power (approximately -0.30%/°C) compared to typical P-type PERC cells (-0.35%/°C), resulting in reduced power losses on hot days. In addition, total degradation over the module's lifetime is minimized, and the risk of LID (Light-Induced Degradation) is virtually eliminated. As a result, the DAS-DH144NA generates more energy over its entire operational lifespan compared to an installation based on PERC modules of the same nominal rated power.
Do the DAS-DH144NA panels perform efficiently in the Polish climate with low irradiance conditions?
Yes, the DAS-DH144NA series is optimized for operation under diffuse and low-irradiance conditions typical of overcast days in Poland. The TOPCon cell technology combined with bifacial architecture enables superior conversion of soft, diffuse light compared to conventional monofacial modules. In practice, this translates into higher energy yield during transitional months — March–April and October–November — when PERC-based panels experience a more noticeable drop in performance.
How much does a DAS Solar DAS-DH144NA panel weigh, and does it require a special mounting structure?
The DAS-DH144NA series panel weighs approximately 31.3 kg, with dimensions of 2,278 × 1,134 × 30 mm. Due to its weight and double-glass construction — consisting of two tempered glass panes — it requires a robust, dual-rail racking structure with clamps rated for either framed or frameless modules. For large-scale installations, this weight must be factored into the structural engineering design of the roof or ground-mounted racking system.
Is DAS Solar a reliable manufacturer, and does the DAS-DH144NA series hold the necessary certifications?
DAS Solar is listed on the Bloomberg NEF Tier 1 module manufacturer list, confirming the company's financial stability and manufacturing credibility. The DAS-DH144NA series modules carry IEC 61215 and IEC 61730 certifications (performance and safety), IEC 61701 (salt mist corrosion resistance), and IEC 62716 (ammonia resistance). These certifications are required by the majority of banks and insurers involved in financing utility-scale PV farm projects.
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