--- title: "AKCOME vs VNS Bulgaria - Brand Comparison | ComparePV" description: "Compare AKCOME vs VNS Bulgaria solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/akcome-vs-vns-bulgaria" --- # AKCOME vs VNS Bulgaria AKCOME has the broader catalog (3 vs 0 models). AKCOME leans bifacial (100% of lineup). ## The two companies | Attribute | AKCOME | VNS Bulgaria | | --- | --- | --- | | Country | China | Bulgaria | | Headquarters | Suzhou | Kurdjali | | Founded | 2003 | 2009 | | Employees | | null | | Annual capacity | | null GW/year | | Tier 1 | no | | | Listed | | | | Website | [https://www.akcome.com](https://www.akcome.com) | [https://solarstreetlighteu.com](https://solarstreetlighteu.com) | VNS Bulgaria Ltd. was established in 2009 and focuses on manufacturing and construction of solar street lighting, solar park lighting, LED street lamps, photovoltaic systems, and various other solar systems. The company utilizes innovative technologies in its designs and constructions and has completed over 1000... ## Catalog & Power | Measure | AKCOME | VNS Bulgaria | Margin | | --- | --- | --- | --- | | Panel Models | 3 | 0 | +3 | | Max Power | 700 W | 0 W | +700 W | | Avg Power | 672 W | 0 W | +672 W | ## Efficiency | Measure | AKCOME | VNS Bulgaria | Margin | | --- | --- | --- | --- | | Max Efficiency | 22.54% | - | | | Avg Efficiency | 21.63% | - | | ## Reliability & Warranty | Measure | AKCOME | VNS Bulgaria | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.240%/°C | - | | | Bifacial Share | 3 (100%) | 0 (0%) | +100 pp | | Avg Warranty | 30.0 yrs | - | | ## Efficiency distribution | Efficiency band | AKCOME | VNS Bulgaria | | --- | --- | --- | | 21-22% | 2 (66.7%) | 0 | | 22-23% | 1 (33.3%) | 0 | ## Power distribution AKCOME offers more 600W+ panels (100% of lineup) | Power band | AKCOME | VNS Bulgaria | | --- | --- | --- | | 600-699W | 2 (66.7%) | 0 | | 700W+ | 1 (33.3%) | 0 | ## Cell technology Dominant cell tech: **HJT** (100%) | Technology | AKCOME | VNS Bulgaria | | --- | --- | --- | | HJT | 3 (100.0%) | 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 | ## Summary AKCOME (Jiangsu Akcome Science and Technology Co., Ltd.) is a Chinese manufacturer founded in 2003 and headquartered in Jiangsu Province, with a decade-long focus on heterojunction (HJT) cell technology. Its panels are listed on the Shanghai Stock Exchange and the company has been a visible participant in international solar trade shows, though it was removed from the Bloomberg Tier 1 module bankability list as of early 2025 after its product listings became inaccessible - a meaningful flag for project finance purposes. VNS Bulgaria, by contrast, is a small Bulgarian firm founded in 2009 that functions primarily as a regional distributor and reseller of panels from established brands such as LONGi, JA Solar, and Trina Solar, rather than as an original equipment manufacturer. It carries no known Tier 1 designation, no disclosed production capacity, and holds no public listing. On institutional footprint, AKCOME is the clear leader of the two, though its lapsed bankability status limits its edge for financed utility projects. AKCOME's sampled portfolio of three panels is entirely HJT and entirely bifacial, which positions it firmly at the premium end of the technology spectrum. Average output sits at 672 Wp with a ceiling of 700 Wp, and average front-side efficiency reaches 21.6%, peaking at 22.54% - competitive figures even against top-tier HJT rivals. The average temperature coefficient of -0.24%/degree C is exceptionally low, meaning real-world output losses in hot climates are minimized. A 30-year average product warranty further underlines a premium positioning suited to discerning residential buyers and performance-sensitive commercial rooftop projects. VNS Bulgaria presents no proprietary panel data in the dataset - zero panels catalogued under its own brand, with no power, efficiency, or warranty figures available. This reflects its role as a trade intermediary rather than a manufacturer, making any direct specification-level comparison impossible. For a buyer choosing between these two in 2025, AKCOME offers a concrete, technically distinguished HJT lineup worth evaluating for high-efficiency rooftop or small commercial applications, provided the buyer is comfortable with its current non-Tier-1 status and can secure financing independently. VNS Bulgaria is not a meaningful alternative as a panel brand - buyers engaging with it are effectively purchasing third-party modules under a reseller umbrella, and should evaluate whichever OEM brands it currently stocks on their own merits. \---LINKS--- \- https://www.pv-magazine.com/2023/06/07/akcome-unveils-730-w-heterojunction-solar-panel/ \| AKCOME unveils new 730 W heterojunction solar modules \| article \- https://taiyangnews.info/topmodules/top-solar-modules-listing-january-2025 \| TaiyangNews Top Solar Modules Listing - January 2025 \| article \- https://www.enfsolar.com/vns-bulgaria \| VNS Bulgaria company profile - ENF Solar directory \| article \- https://hjtpv.com/hjt-producers/akcome-solar-panel/ \| AKCOME HJT solar panel overview - HJT PV Review \| review Sources: \- \[AKCOME unveils new 730 W heterojunction solar modules - pv magazine\](https://www.pv-magazine.com/2023/06/07/akcome-unveils-730-w-heterojunction-solar-panel/) \- \[TaiyangNews Top Solar Modules Listing - January 2025\](https://taiyangnews.info/topmodules/top-solar-modules-listing-january-2025) \- \[VNS Bulgaria - ENF Solar Directory\](https://www.enfsolar.com/vns-bulgaria) \- \[AKCOME HJT Solar Panels - HJT PV Review\](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 VNS Bulgaria](https://comparepv.com/ae-solar-vs-vns-bulgaria) - [AKCOME vs AEET](https://comparepv.com/akcome-vs-aeet) - [AIKO vs VNS Bulgaria](https://comparepv.com/aiko-vs-vns-bulgaria) - [AKCOME vs ARTsolar](https://comparepv.com/akcome-vs-artsolar) - [ASM vs VNS Bulgaria](https://comparepv.com/asm-vs-vns-bulgaria) --- Source: https://comparepv.com/akcome-vs-vns-bulgaria Not in this file, on the page: the distributions above drawn as charts.