Light for its output, needs the roof space
The DAS-LOJP series is a modern solution based on N-type TOPCon technology, which redefines efficiency standards in challenging lighting conditions. Thanks to the use of N-type cells, these modules completely eliminate the problem of light-induced degradation (LID), which directly translates to higher yield stability throughout the entire, multi-year life cycle of the installation. The use of an advanced bifacial (double-sided) design allows for the efficient harvesting of clean energy also from reflected radiation, which is crucial for mounting on bright surfaces or ground-based structures. These models stand out with an exceptionally favorable, low temperature coefficient, ensuring they work effectively even during intense summer heat when standard panels lose their rated power. This solution is primarily dedicated to demanding commercial investors and large-scale photovoltaic farms, where maximizing power density and the lowest Levelized Cost of Energy (LCOE) are key. DAS-LOJP distinguishes itself from market competitors by using SMBB technology, which significantly shortens the electron flow path and increases resistance to micro-cracks. By choosing this series, every user invests in maximum mechanical durability and absolute certainty of stable energy generation regardless of the dynamically changing atmospheric conditions in the Polish climate.
Ranking
Signals from the data
Commercial and hot-climate.
Roofs where every square metre has to count and tight roof space.
Top 2% of the PERC 400-450 W segment, against a median of 53.0. Ranked 91st in the whole database.
Top 24% of the PERC 400-450 W segment, against a median of -0.350.
Bottom 1% of the PERC 400-450 W segment, against a median of 206.2. Ranked 13,225th in the whole database.
Bottom 13% of the PERC 400-450 W segment, against a median of 20.60%.
The DAS-LOJP weighs just 9.9 kg at 410–420 Wp, whereas conventional glass-aluminum modules of comparable power output typically weigh 21–23 kg. At only 4 mm thick, this is a decisive advantage for roofs with limited load-bearing capacity — such as corrugated metal or trapezoidal-profile roofing — and for BIPV applications where a standard module is structurally unacceptable.
Eliminating glass and the aluminum frame removes the risk of breakage during transport and operation, reduces corrosion in aggressive environments (coastal, industrial), and lowers snow load due to the module's low mass. The manufacturer claims zero risk of microcracks owing to the flexible composite encapsulation.
The module tolerates bending down to an 880 mm radius, enabling integration with curved building surfaces (BIPV) and irregular rooflines. None of the peer comparables (GCL M10/54H, Phono Solar TWINPLUS, Solarspace SS8-54HSB) offer this flexibility — all are conventional rigid modules.
DAS Solar earned its fourth consecutive quarterly listing on the BNEF Tier-1 module manufacturer index in 2025, confirming bankability — the ability to secure non-recourse project financing. Founded in 2018, the company achieved this status exceptionally quickly by industry standards.
The maximum module efficiency of 20.3% is lower than every comparable model in the peer group: GCL M10/54H reaches 21.5%, Phono Solar TWINPLUS 20.98%, and Solarspace SS8-54HSB 21.51%. The ~1.2–1.3 percentage-point gap relative to the peer median translates to approximately 6% lower power density for the same roof area — a meaningful penalty on space-constrained installations.
The industry benchmark for premium modules in 2026 is a 25-year workmanship (product) warranty. The DAS-LOJP covers only 10 years, leaving the module without factory coverage during years 10–25 of operation. Leading Tier-1 manufacturers — including Jinko, LONGi, and REC — routinely offer 12–25 years on this warranty layer.
The series is built on P-type PERC cells, which are susceptible to light-induced degradation (LID) and carry a less favorable temperature coefficient (typically -0.35%/°C) compared to N-type TOPCon cells (~-0.29%/°C). Peer comparables GCL M10/54H and Solarspace SS8-54HSB achieve their higher efficiencies precisely because of their N-type architecture. PERC is a mature technology, but it is no longer the leading cell technology in this power class for 2023–2026.
Frameless composite-substrate modules require dedicated mounting systems that are incompatible with the standard clamps and rails in widespread use across Poland. The majority of local installation contractors have no experience with this format, which may extend installation time, complicate servicing, and create difficulties in obtaining insurance coverage for the system.
- At 20.0% efficiency, this panel is 0.6pp below the PERC 400-450W median of 20.6%
- 179.5 W/m² power density is 26.7 W/m² below PERC 400-450W median (206.2 W/m²) - requires larger installation area
- Temperature coefficient of -0.34%/°C matches the PERC 400-450W median
- 9.9 kg weight - 12.1 kg lighter than PERC 400-450W median (22.0 kg), reducing installation effort
- In the top 87% for efficiency among all PERC panels
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
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