Space saver, no clear weak spot
KDM N-type 144-cell panels bring a new level of quality to utility-scale installations, utilizing advanced N-type cell architecture that almost completely eliminates light-induced degradation. Thanks to the design based on 144 half-cut cells, these modules offer significantly higher efficiency compared to traditional P-type panels, which translates into more energy harvested from every square meter of surface area. A key innovation is the use of TOPCon technology, which allows for significantly better results in low-light conditions as well as during morning and evening hours. This series effectively solves the problem of component overheating, as the low temperature coefficient guarantees stable operation and high yields even during record summer heatwaves. This solution is dedicated primarily to investors building ground-mounted farms and large rooftop installations, where the priority is maximum durability and a fast return on investment. What distinguishes these modules from competing products is their exceptional resistance to PID and LeTID effects, which, combined with a reinforced frame, ensures full mechanical safety in extreme weather conditions. By choosing high-efficiency N-type cells, the user can be sure that the system will maintain its original parameters for decades, minimizing operating costs. This is a solid foundation for professional energy projects, focusing on uncompromising expertise and performance.
Ranking
Signals from the data
Utility-scale, commercial, hot-climate and shaded-installations.
Top 12% of the N-type 550-600 W segment, against a median of 224.5.
Top 20% of the N-type 550-600 W segment, against a median of 22.45%.
N-type TOPCon cells deliver a temperature coefficient of approximately -0.29%/°C versus -0.35%/°C for PERC, translating to roughly 3.5% higher output at a typical module temperature of 70°C. First-year LID degradation stays below 0.5%, compared to 1.5–2.5% for standard PERC cells.
At 590 Wp and 22.8% module efficiency, the panel matches its closest peers — Horay HS 182-144 TC-D Ocean (22.8%) and Talesun TM7G72M (22.8%) — and trails AE Solar HORIZON CMD-144BDS by only 0.06 percentage points (22.86%). For utility-scale ground-mount projects, this reduces required land area by approximately 8–10% versus legacy PERC modules at ~21% efficiency.
KDM guarantees linear power output over 30 years with annual degradation not exceeding 0.4%, retaining >88% of nameplate power at end of life. Many Tier-2 manufacturers and select Tier-1 brands (e.g., Talesun) cap at 25-year warranties with a ~84.8% floor — KDM extends warranty coverage by a full five years.
Splitting each cell in half halves the current per string, reducing resistive (I²R) losses and improving partial-shading tolerance. In commercial rooftop and ground-mount systems with obstructions, this configuration typically yields 2–4% higher annual energy output versus full-cell modules at the same nameplate wattage.
The KDM N-type 144-cell series carries a discontinued status, meaning production has ended and no replenishment stock will be manufactured. This prevents future capacity expansions using identical modules and severely complicates in-warranty replacement logistics — a critical risk factor for projects with a 30-year investment horizon.
Zhejiang Kingdom Solar Energy Technic Co., Ltd. (est. 2010) does not appear on BloombergNEF's Tier 1 module manufacturer list as of Q1 2026. For projects seeking non-recourse bank financing, the absence of bankable status is typically a hard disqualifier and forces either higher credit insurance premiums or a switch to a Tier-1 supplier.
Direct peer Horay HS 182-144 TC-D Ocean achieves the same 22.8% front-side efficiency and 590 Wp in a bifacial configuration, capturing an additional 10–25% bifacial gain typical of ground-mount installations. The KDM N-type 144-cell is strictly monofacial, forgoing rear-side generation with no compensating price advantage or technical differentiation.
The product warranty covering manufacturing defects, delamination, and cell cracking extends only 12 years, whereas Jinko Solar, LONGi, and Canadian Solar provide 15-year product warranties on comparable 590 Wp TOPCon modules. The missing three years span the highest-risk window for latent defects, leaving the owner exposed to full module replacement costs from year 13 onward.
- Efficiency of 22.8% matches the N-type 550-600W median
- 228.5 W/m² power density - 4.0 W/m² more than N-type 550-600W median (224.5 W/m²), more power per roof area
- At -0.29%/°C, hot weather performance is typical for N-type 550-600W panels
- 28.0 kg weight - 1.5 kg lighter than N-type 550-600W median (29.5 kg), reducing installation effort
- Ranked #2714 out of 14005 panels for efficiency in the database
Specifications
Datasheet charts
Measured curves published by KDM Kingdom Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 590 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Alternatives
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