Solid all-round for its segment
The JT SSt(B) series from Jetion Solar consists of dual-glass monocrystalline modules engineered for installations where maximizing energy yield under demanding operating conditions is the priority. The panels use N-type TOPCon technology with multiple busbars, delivering higher conversion efficiency and lower resistive losses compared to conventional PERC cells. The bifacial cell design, housed in a glass-glass construction, captures light reflected from the ground surface, allowing the rear side of the module to generate additional power and significantly reducing the levelized cost of electricity (LCOE) over the system's lifetime. The series stands out for its low LID/LETID degradation, ensuring more stable energy output over decades of operation, while strict quality control and double EL inspection minimize the risk of PID effects. The module construction has been optimized for resistance to extreme weather conditions - high wind and snow loads as well as hail impacts are not an issue, making it a solid choice for installations in regions with variable climates. The manufacturer backs the series with a 30-year linear power output warranty, giving investors confidence in the long-term profitability of their projects. The JT SSt(B) is a solution dedicated to commercial installations and solar farms, where predictable performance and low operating costs over the entire service life matter most.
Ranking
Signals from the data
Utility-scale and commercial.
Multi-busbar N-type TOPCon cells deliver up to 22.8% efficiency and significantly lower LID/LETID degradation compared to classic PERC cells, translating into higher and more stable energy yield over a 25-30 year horizon.
Bifacial cells in a double-glass housing capture light reflected from the ground and generate additional rear-side energy, lowering LCOE across the full lifecycle of the installation - a key advantage for commercial projects and utility-scale PV farms.
The manufacturer guarantees 30 years of linear power degradation with a 12-year product warranty, matching the best comparable series on the market (Talesun TM7G72M, Horay HS 182-144 TC-D Ocean, AE Solar HORIZON CMD-144BDS) and giving investors predictable long-term returns.
Power output up to 590Wp and efficiency up to 22.8% place the JT SSt(B) series on par with leading competitors in the bifacial TOPCon 144-cell segment, showing no meaningful gap versus the best solutions available in the 2026 market.
The module design is optimized for high wind and snow loads and hail impact resistance, backed by dual EL inspection, minimizing PID risk and failure rates in demanding operating environments - important for installations in variable climates.
Jetion Solar held BNEF Tier 1 status in Q4 2020, was subsequently dropped from the list, and only returned in Q2 2024 after BNEF tightened its criteria. This is a less continuous bankability track record than manufacturers with uninterrupted Tier-1 status spanning over a decade (e.g., Trina Solar, JA Solar), which may matter during project financing due diligence.
The JT SSt(B) series launched in 2025, so no multi-year real-world operational data yet confirms the claimed 30-year linear power degradation - unlike competing TOPCon series that have been on the market since 2021-2022.
- Efficiency of 22.1% matches the TOPCon 550-600W median
- At 220.7 W/m², this panel generates 3.8 W/m² less per unit area than TOPCon 550-600W median (224.4 W/m²)
- At -0.29%/°C, hot weather performance is typical for TOPCon 550-600W panels
- 85% bifaciality enables rear-side power generation, boosting yield by 4-13% on reflective surfaces
- Ranked #6076 out of 14129 panels for efficiency in the database
Specifications
Datasheet charts
Measured curves published by Jetion in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 570 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.
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About the JT SSt(B) series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.