Light for its output, modest efficiency
The Leapton LP182*182-M-78-NH series was designed to maximize energy yield from the same installation area - particularly in situations where every square meter of the structure is valuable. These are monofacial modules based on N-type TOPCon technology cells, which perform more stably over time and better handle less ideal conditions, such as morning and afternoon shading or diffuse light during the autumn and winter seasons. The use of a half-cut design helps to minimize losses and improves the module's performance when partially shaded, which is important on roofs with obstructions (chimneys, skylights, HVAC systems).
In practice, this series solves a common problem for investors - how to increase production without expanding the installation area. Furthermore, the robust construction with an IP68 enclosure ensures reliability in harsh weather conditions. The LP182*182-M-78-NH will be a good choice for large commercial roofs, PV farms, and projects where high efficiency and predictable performance over many years are crucial.
Ranking
Signals from the data
Commercial, utility-scale and shaded-installations.
Tight roof space, roofs where every square metre has to count and hot climates.
Top 9% of the TOPCon 600-650 W segment, against a median of 53.1. Ranked 1,141st in the whole database.
Bottom 18% of the TOPCon 600-650 W segment, against a median of 22.80%.
Bottom 18% of the TOPCon 600-650 W segment, against a median of 227.7.
Bottom 19% of the TOPCon 600-650 W segment, against a median of -0.290.
TOPCon cells deliver lower LID/LeTID degradation and better high-temperature performance than legacy PERC cells, translating into higher and more predictable annual energy yield, especially under diffuse light in fall/winter conditions.
Leapton holds Tier-1 status from BloombergNEF, confirming module supply to at least six projects above 10 MW financed by independent commercial banks - important for bankability and project financing of PV installations.
Founded in 2012 and headquartered in Japan, Leapton is one of the few Japanese manufacturers with Tier-1 status, easing access to bank financing both locally and in export markets.
The 78 half-cut cell layout reduces losses under partial shading (chimneys, dormers, HVAC units), while the IP68-rated junction box improves resistance to moisture and harsh weather conditions.
Module power in the 610-625 Wp range reduces the number of modules, cabling, and mounting structure needed on large commercial roofs and PV farms, lowering BoS cost per Wp.
Module efficiency of 21.82-22.36% is noticeably lower than direct competitors at the same 625 Wp peak power - Longi Hi-MO 7 (23.1%) and DAH Solar DHN-66Z16/DG and DHN-72R20/DG (23.14%) - meaning less power from the same roof area at a comparable module footprint.
The LP182*182-M-78-NH series is monofacial, while some comparable designs from competitors (e.g., DAH Solar's DG variants) offer dual-glass/bifacial modules that add rear-side yield on reflective mounting surfaces - Leapton does not offer this option within this series.
- At 22.4% efficiency, this panel is on par with typical TOPCon 600-650W modules
- 223.6 W/m² power density is 4.1 W/m² below TOPCon 600-650W median (227.7 W/m²) - requires larger installation area
- At -0.30%/°C, hot weather performance is typical for TOPCon 600-650W panels
- Weight of 29.0 kg (3.7 kg below TOPCon 600-650W median of 32.7 kg) allows easier transport and roof mounting
- #5007 for efficiency, #6093 for temperature performance out of 14005 panels
Specifications
Datasheet charts
Measured curves published by Leapton in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 625 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Found 616 panels of the same or similar size to this one, within ±10 mm. See them here Found 616 panels of the same or similar size to this one, within ±25 mm. See them here Found 616 panels of the same or similar size to this one, within ±50 mm. See them here Found 1813 panels of the same or similar size to this one, within ±100 mm. See them here