Efficiency leader, heavy for its output
MY Solar M2 series photovoltaic panels are a solution designed to maximize energy yields while maintaining the highest aesthetics of the installation. The use of advanced Half-cut cell technology allows for a significant reduction in resistance losses and better module performance in partial shading conditions, which directly translates into power production stability. Thanks to the use of Multi-busbar (MBB), the M2 series features a shortened electron flow path, which not only increases efficiency but also enhances the mechanical resistance of the cells to micro-cracks. For investors seeking reliability, high resistance to potential-induced degradation (PID) is key, guaranteeing the maintenance of high performance parameters over many years of operation. These modules are an ideal choice for owners of single-family homes and businesses that care about the optimal use of available roof space. What sets the M2 series apart from the competition is the perfect balance between innovative technology and durability in difficult weather conditions. These panels effectively handle heavy snow and wind loads, ensuring safety and peace of mind in the Polish climate. It is a smart investment for those who focus on reliability and modern design of PV systems.
Ranking
Signals from the data
Residential, commercial and shaded-installations.
Weight-limited structures.
Top 5% of the PERC 250-300 W segment, against a median of 17.21%. Ranked 9,076th in the whole database.
Top 12% of the PERC 250-300 W segment, against a median of 172.1.
Bottom 19% of the PERC 250-300 W segment, against a median of 66.5.
Maximum efficiency of 21.2% at 385 Wp matches or exceeds comparable models at the same power class: Solarwatt Vision GM 3.0 pure (20.7%), Suntech Ultra S mini (21.1%), and JA Solar JAM60D20 (20.6%). This is a strong result for PERC technology, which typically trails newer N-type platforms.
The combination of half-cut cell technology with multi-busbar (MBB) design shortens the electron flow path, reducing resistive losses and improving cell resistance to microcracks. It also improves module behavior under partial shading, stabilizing real-world energy yield.
The modules feature enhanced resistance to potential-induced degradation (PID), limiting power loss from electrochemical effects and supporting stable output throughout the 25-year linear power warranty period.
An extensive lineup of 11 power variants from 270 to 385 Wp gives flexibility to match module selection to specific roof area and system requirements, for both residential and commercial installations.
The M2 series is discontinued, meaning limited availability of replacement modules in case of failure or warranty claims, and potential difficulty servicing installations long-term despite the 12-year product warranty.
MY Solar does not appear on BloombergNEF's Tier 1 bankable manufacturer list (updated quarterly; Q2 2026 covers 42 companies including Jinko, LONGi, Trina, and JA Solar). This can complicate non-recourse project financing and reduce confidence from insurers and institutional investors.
A 12-year product warranty falls below the current market standard, where even budget-segment panels increasingly offer 15 years, and premium models reach 25-30 years combined product/power warranty.
PERC cells are being superseded by N-type platforms (TOPCon, HJT), which dominate the premium segment in 2026 with higher efficiency ceilings (22-23%) and lower annual degradation. This may affect the installation's relative residual value over the long term.
- Efficiency of 21.2% is 1.8pp above the PERC 0-400W median (19.4%)
- At 183.9 W/m², this panel generates 10.5 W/m² less per unit area than PERC 0-400W median (194.4 W/m²)
- Temperature coefficient of -0.37%/°C matches the PERC 0-400W median
- 19.0 kg weight - 1.5 kg lighter than PERC 0-400W median (20.5 kg), reducing installation effort
- Ranked #9076 out of 14005 panels for efficiency in the database
Specifications
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
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