--- title: "AKCOME vs Kingdom - Brand Comparison | ComparePV" description: "Compare AKCOME vs Kingdom solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/akcome-vs-kingdom-solar" --- # AKCOME vs Kingdom Kingdom leads on peak efficiency at 22.80%. AKCOME leans bifacial (100% of lineup). ## The two companies | Attribute | AKCOME | Kingdom | | --- | --- | --- | | Country | China | China | | Headquarters | Suzhou | Hefei | | Founded | 2003 | 2010 | | Employees | | 100 | | Annual capacity | | 1 GW/year | | Tier 1 | no | no | | Listed | | | | Website | [https://www.akcome.com](https://www.akcome.com) | [https://www.kdmsolar.com](https://www.kdmsolar.com) | Kingdom Solar (also known as KDM Kingdom Solar) is a Chinese solar module manufacturer based in Hefei, Anhui Province. The company produces monocrystalline solar panels for residential and commercial applications. ## Catalog & Power | Measure | AKCOME | Kingdom | Margin | | --- | --- | --- | --- | | Panel Models | 3 | 3 | | | Max Power | 700 W | 590 W | +110 W | | Avg Power | 672 W | 533 W | +138 W | ## Efficiency | Measure | AKCOME | Kingdom | Margin | | --- | --- | --- | --- | | Max Efficiency | 22.54% | 22.80% | +0.26 pp | | Avg Efficiency | 21.63% | 22.46% | +0.83 pp | ## Reliability & Warranty | Measure | AKCOME | Kingdom | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.240%/°C | -0.290%/°C | +0.050 | | Bifacial Share | 3 (100%) | 0 (0%) | +100 pp | | Avg Warranty | 30.0 yrs | 30.0 yrs | | ## Efficiency distribution | Efficiency band | AKCOME | Kingdom | | --- | --- | --- | | 21-22% | 2 (66.7%) | 0 | | 22-23% | 1 (33.3%) | 3 (100.0%) | ## Power distribution AKCOME offers more 600W+ panels (100% of lineup) | Power band | AKCOME | Kingdom | | --- | --- | --- | | 600-699W | 2 (66.7%) | 0 | | 700W+ | 1 (33.3%) | 0 | | 400-499W | 0 | 1 (33.3%) | | 500-599W | 0 | 2 (66.7%) | ## Cell technology Dominant cell tech: **HJT** (100%) Dominant cell tech: **N-type** (100%) | Technology | AKCOME | Kingdom | | --- | --- | --- | | HJT | 3 (100.0%) | 0 | | N-type | 0 | 3 (100.0%) | ## Top panels, AKCOME | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [SKA611HDGDC-700W](https://comparepv.com/panel/akcome-ska611hdgdc-700w) | 700 | 22.5 | -0.240 | Monocrystalline | | 2 | [SKA611HDGDC-660W](https://comparepv.com/panel/akcome-ska611hdgdc-660w) | 660 | 21.2 | -0.240 | Monocrystalline | | 3 | [SKA611HDGDC-655W](https://comparepv.com/panel/akcome-ska611hdgdc-655w) | 655 | 21.1 | -0.240 | Monocrystalline | ## Top panels, Kingdom | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [KD-M590-144-N](https://comparepv.com/panel/kingdom-kd-m590-144-n) | 590 | 22.8 | -0.290 | Monocrystalline | | 2 | [KD-M570-144-N](https://comparepv.com/panel/kingdom-kd-m570-144-n) | 570 | 22.1 | -0.290 | Monocrystalline | | 3 | [KD-M440-108-N](https://comparepv.com/panel/kingdom-kd-m440-108-n-1) | 440 | 22.5 | -0.290 | Monocrystalline | ## Summary Both AKCOME and Kingdom Solar are China-based manufacturers that sit outside the BloombergNEF Tier 1 bankability list, meaning neither has demonstrated the volume of project financing required to qualify as institutionally bankable. AKCOME was founded in 2003 and, at its peak, operated roughly 6 GW of heterojunction (HJT) cell and module capacity, with ambitions to reach 8.2 GW; however, its Zhejiang subsidiary filed for bankruptcy in 2024 due to an inability to service debt, a serious red flag for long-term warranty support. Kingdom Solar (Zhejiang Kingdom Solar Energy Technic Co.) was established in 2010 in Linhai City, Zhejiang, reports a production capacity of 1 GW, and employs approximately 100 people - a much smaller outfit with no stock exchange listing, but one that appears to remain operational. On institutional footprint, neither brand offers the financial reassurance of a Tier 1 manufacturer, and AKCOME's current insolvency situation makes it the riskier of the two. The two lineups are aimed at very different segments. AKCOME's sampled portfolio is built entirely on HJT technology with 100% bifacial construction, averaging 671 Wp per panel and topping out at 700 Wp, with an average efficiency of 21.6% and a peak of 22.54%. The strong temperature coefficient of -0.24% per degree Celsius is a genuine advantage in warm climates, and the high wattage per panel suits ground-mounted utility or large commercial installations where minimizing racking and wiring costs matters. Kingdom Solar's reviewed lineup consists of a single N-type monofacial panel rated at 440 Wp with an efficiency of 22.5% - competitive on a per-cell basis, but with a weaker temperature coefficient of -0.29% per degree Celsius and no bifacial gain. That profile fits premium residential rooftops or small commercial arrays where panel count is constrained and module-level efficiency matters more than raw wattage. Both manufacturers offer a 30-year product warranty on paper. For a typical buyer in 2025, Kingdom Solar is the more defensible default despite its smaller scale, simply because the company appears to be a going concern, which is the minimum condition for a warranty to carry any practical weight. AKCOME's HJT technology and high per-panel power output are genuinely compelling on spec, but purchasing from a manufacturer that has entered insolvency proceedings introduces serious counterparty risk - no amount of efficiency advantage compensates for a warranty that may be unenforceable. Buyers with strong project-finance requirements should look past both brands toward Tier 1 alternatives. \---LINKS--- \- https://www.pv-tech.org/jiangsu-akcome-raising-funds-to-build-second-phase-1-32gw-integrated-hetero/ \| Jiangsu Akcome raises funds for 1.32 GW second-phase HJT plant - PV Tech \| article \- https://www.pv-magazine.com/2023/06/07/akcome-unveils-730-w-heterojunction-solar-panel/ \| Akcome unveils new 730 W heterojunction solar modules - PV Magazine \| article \- https://taiyangnews.info/topmodules/top-solar-modules-listing-january-2025 \| TOP Solar Modules Listing January 2025 - TaiyangNews \| article \- https://www.enfsolar.com/kingdom-solar \| Zhejiang Kingdom Solar Energy Technic Co. profile - ENF Solar \| review \- https://hjtpv.com/hjt-producers/akcome-solar-panel/ \| AKCOME Solar Panel - HJT PV producer overview \| review Sources: \- \[Jiangsu Akcome raises funds for 1.32 GW second-phase HJT plant - PV Tech\](https://www.pv-tech.org/jiangsu-akcome-raising-funds-to-build-second-phase-1-32gw-integrated-hetero/) \- \[Akcome unveils new 730 W heterojunction solar modules - PV Magazine\](https://www.pv-magazine.com/2023/06/07/akcome-unveils-730-w-heterojunction-solar-panel/) \- \[TOP Solar Modules Listing January 2025 - TaiyangNews\](https://taiyangnews.info/topmodules/top-solar-modules-listing-january-2025) \- \[Zhejiang Kingdom Solar Energy Technic Co. profile - ENF Solar\](https://www.enfsolar.com/kingdom-solar) \- \[AKCOME Solar Panel - HJT PV producer overview\](https://hjtpv.com/hjt-producers/akcome-solar-panel/) Written by claude-sonnet from the figures above. ## Other comparisons - [AKCOME vs A.B. Energy](https://comparepv.com/akcome-vs-a-b-energy) - [AE Solar vs Kingdom](https://comparepv.com/ae-solar-vs-kingdom-solar) - [AKCOME vs AEET](https://comparepv.com/akcome-vs-aeet) - [AIKO vs Kingdom](https://comparepv.com/aiko-vs-kingdom-solar) - [AKCOME vs ARTsolar](https://comparepv.com/akcome-vs-artsolar) - [ASM vs Kingdom](https://comparepv.com/asm-vs-kingdom-solar) --- Source: https://comparepv.com/akcome-vs-kingdom-solar Not in this file, on the page: the distributions above drawn as charts.