Space saver, no clear weak spot
The MY Solar ALTRA N-TYPE TopCon Bifacial BlackRoof FullBlack series represents a breakthrough in system design, where combining maximum efficiency with an impeccable appearance is key. The use of N-type cells in TopCon technology eliminates typical problems with initial degradation and guarantees significantly higher efficiency compared to standard P-type modules. A key innovation is the Bifacial function, which, thanks to double-sided cell activity, allows for energy recovery from reflected radiation, translating into a realistically higher return on investment in practice. These panels were designed with a FullBlack aesthetic for BlackRoof-type roofs, ensuring the installation creates a coherent, elegant surface on the building without visible cell construction elements. This solves the dilemma of modern homeowners seeking equipment that will not disrupt the building's architecture. Moreover, ALTRA modules are characterized by an excellent temperature coefficient, which ensures stable operation even on hot summer days. By choosing this solution, the user receives increased resistance to micro-cracks and exceptional mechanical durability, setting this series apart from mass-produced competitor products. It is the optimal choice for demanding prosumers for whom the highest quality of workmanship and long-term energy security of the building are essential.
Ranking
Signals from the data
Residential and hot-climate.
Top 4% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 3,284th in the whole database.
Top 4% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 3,298th in the whole database.
N-type technology eliminates the LID degradation typical of older P-type/PERC cells and delivers higher baseline efficiency (up to 22.73%), translating into more stable energy yield over the module's lifetime.
Bifacial cells recover additional energy from albedo (reflected irradiance), which under typical mounting conditions can boost annual yield by several to over ten percent compared to monofacial modules of the same rated power.
The black frame, black backsheet, and absence of visible cell gridlines create a uniform, premium-looking array - a strong selling point for modern rooftops and black-roof buildings, where conventional modules with visible busbars stand out visually.
The 30-year power warranty exceeds the industry-standard 25 years offered by comparable N-type series in the segment (e.g., JA Solar JAM54D40, Lina Energy LEPV 132 ULTRA PREMIUM), giving investors an extra 5 years of coverage against power degradation.
Efficiency up to 22.73% places the series above Lina Energy LEPV 132 ULTRA PREMIUM (22.37%) and close to JA Solar JAM54D40 (22.5%) at the same 440 Wp maximum power, confirming technological competitiveness within the N-type TOPCon segment.
Manufacturer MY Solar does not appear on the Bloomberg New Energy Finance Tier-1 list, unlike some peer comparables (e.g., JA Solar). This can limit access to bank financing without additional collateral and affect insurance terms for large commercial installations.
The series was introduced in 2023, meaning only about 3 years of field operational data are available as of 2026, compared to the multi-year documented performance histories of Tier-1 manufacturers - increasing uncertainty about real-world durability over the full 30-year warranty horizon.
- 22.7% module efficiency - 0.7pp better than the TOPCon 400-450W median of 22.0%
- At 227.3 W/m² power density, this panel generates 7.1 W/m² more per unit area than TOPCon 400-450W median (220.2 W/m²)
- Temperature coefficient of -0.29%/°C matches the TOPCon 400-450W median
- Bifaciality factor of 85% can add 4-13% extra yield with reflective mounting surface
- Ranked #3298 out of 14129 panels for efficiency in the database
Specifications
Datasheet charts
Measured curves published by MY Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 440 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
Alternatives
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About the ALTRA N-TYPE TopCon Bifacial BlackRoof FullBlack series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.