Middle of its segment, weak in heat
The Lina Energy LEPV 108 Nexa TOPCon panel series is a technologically advanced solution based on N-type silicon cells, which set new efficiency standards in the Polish climate. The use of innovative TOPCon architecture allows for significantly higher efficiency than traditional modules, which directly translates into maximizing yields from every square meter of the roof. This series effectively eliminates the problem of rapid component aging, offering minimal light-induced degradation, which ensures the installation maintains its power for decades. The optimal configuration of 108 cells makes the panels extremely handy and ideal for installation on residential buildings where space is often limited. A key competitive advantage is the exceptional performance at low irradiance, allowing for efficient electricity production even on cloudy days or during morning and evening hours. This is complemented by a very low temperature coefficient, guaranteeing stable system operation during summer heatwaves. This is a product aimed at demanding investors who expect a combination of the latest innovations with an aesthetic appearance and the energy security of their household or business.
Ranking
Signals from the data
Residential and commercial.
Hot climates, tight roof space and roofs where every square metre has to count.
Bottom 1% of the TOPCon 400-450 W segment, against a median of -0.290. Ranked 12,425th in the whole database.
Bottom 14% of the TOPCon 400-450 W segment, against a median of 22.00%.
Bottom 15% of the TOPCon 400-450 W segment, against a median of 220.2.
TOPCon N-type architecture delivers lower LID/LeTID degradation than legacy PERC and better high-temperature performance, with a Pmax temperature coefficient of -0.36%/°C. The bifacial design captures additional rear-side irradiance reflected from the ground, a meaningful advantage on elevated or flat-roof mounts.
Efficiency of 21.49-22.26% at up to 435 Wp places the series close to the top of comparable peers (SunLink SL5N108 at 22.3%, SunKean SKT415~435M10-108D4 at 22.27%), clearly above Just Solar's IBC Mono Module (22.1%). The gap to the segment leader is only 0.04 pp, negligible in practical yield terms.
A 25-year product warranty and 30-year power warranty exceed the market standard of most older PERC modules (typically 12/25 years), reducing investor risk over the system's long-term operation.
Dimensions of 1724x1134x30 mm and a weight of 23.4 kg make the panel easy to transport and install on pitched residential roofs with limited surface area, without requiring reinforced roof structures.
Lina Energy (UK) has been operating since 2017, roughly 9 years - shorter than many established Tier-1 manufacturers in the comparable segment. Given the 30-year power warranty, a shorter operating history increases uncertainty around the manufacturer's servicing capability over the full warranty period.
Available technical documentation indicates guaranteed power retention of approximately 84.5% after 30 years, below the best premium N-type TOPCon modules in the segment, which reach as high as ~87-88%. The gap is small but measurable against top-tier competitors.
- Module efficiency of 21.5% is 0.5pp below average for TOPCon 400-450W panels (median: 22.0%)
- Power density of 214.8 W/m² is 5.4 W/m² below TOPCon 400-450W median (220.2 W/m²) - needs more roof space
- -0.36%/°C temperature coefficient - 0.07pp worse than TOPCon 400-450W median (-0.29%/°C), expect higher hot weather losses
- At 23.4 kg (1.4 kg above TOPCon 400-450W median of 22.0 kg), requires checking roof load capacity
- 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces
Specifications
Datasheet charts
Measured curves published by Lina Energy in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 420 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 LEPV 108 Nexa TOPCon series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.