Light for its output, no clear weak spot
Hyundai HG G12 PERC Shingled (HG Series) modules are designed for maximum yield where every square foot of roof space counts. The applied shingled PERC technology minimizes gaps between active cell areas and improves performance under partial shading - instead of sudden power drops, the installation maintains a more stable output in real-world conditions. Additionally, the construction is geared towards long-term predictability: anti-LID and anti-PID protection helps maintain higher efficiency for years, which is especially important for systems focused on self-consumption and detailed production tracking over the long term. The modules are also distinguished by reinforced frame and tempered glass, facilitating selection for more challenging weather conditions and demanding installation zones. For investors valuing aesthetics, full black variants are available, perfectly matching modern roofs. This is the series for homes and businesses seeking high power density, durability, and trouble-free operation without surprises.
Ranking
Signals from the data
Residential, commercial and shaded-installations.
Top 19% of the PERC 400-450 W segment, against a median of 53.0.
Top 24% of the PERC 400-450 W segment, against a median of -0.350.
The module uses G12 (210×210 mm) cells in a shingled configuration - 320 cells overlapped like roof shingles - eliminating inter-cell gaps, increasing active surface fill factor, and reducing resistive losses. Independent research (solarbuy.com) shows shingled panels deliver 5-15% higher energy yield than standard full-cell panels under partial shading conditions.
The maximum module efficiency of 21.4% places the HG Series at par with the best monofacial PERC panels in the segment - e.g. SunEvo SE6-46SC EVOX (21.4%). Typical monofacial PERC half-cut panels released in 2021-2023 ranged from 20-21%, meaning the HG Series sat at the upper boundary of what the technology generation could achieve.
The official datasheet (06/2022) confirms LID and PID degradation is eliminated and specifies a linear power guarantee with ≤0.55%/year degradation rate, yielding a guaranteed 84.8% of nameplate power after 25 years. This aligns with the best Tier-1 PERC warranties available and supports long-term LCOE calculations for self-consumption-oriented systems.
Hyundai Energy Solutions carries Tier-1 bankable status, meaning modules are accepted as collateral by project-finance banks and institutional lenders. For commercial installations or residential systems financed through loans or leasing, this classification meaningfully reduces project risk.
Tempered glass and a reinforced frame enable installation in demanding climatic zones (snow and wind loads). The full black variant (HiE-S430-445HG FB) addresses growing demand for aesthetically integrated systems on modern rooftops, without any nameplate power compromise.
The HG G12 PERC Shingled series ended production in 2023. This results in limited availability of new units on the market, risk of incompatible modules for system expansion, and potential difficulties in fulfilling warranty service claims and sourcing replacement components over the long term.
Direct comparables at the same 445 W power class achieve substantially higher module efficiency: Q-Cells Q.TRON BLACK at 22.3% and Solitek SOLRIF D Satin at 22.06% - a gap of 0.9-1.0 percentage points translating to approximately 4-5% less energy output from the same roof area, which is meaningful on space-constrained installations.
The module is strictly monofacial (is_bifacial: false), forgoing albedo-reflected irradiance. In ground-mount and flat-roof BoS configurations, bifacial equivalents typically harvest an additional 5-15% annual energy without increasing the installation footprint.
- At 20.9% efficiency, this panel is on par with typical PERC 400-450W modules
- At 209.0 W/m² power density, roof space requirements are typical for PERC 400-450W panels
- Temperature coefficient of -0.34%/°C matches the PERC 400-450W median
- #10148 for efficiency, #8846 for temperature performance out of 14129 panels
Specifications
Datasheet charts
Measured curves published by Hyundai in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 435 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 27 panels of the same or similar size to this one, within ±10 mm. See them here Found 27 panels of the same or similar size to this one, within ±25 mm. See them here Found 799 panels of the same or similar size to this one, within ±50 mm. See them here Found 1877 panels of the same or similar size to this one, within ±100 mm. See them here
About the HG G12 PERC Shingled (HG Series) series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.