--- title: "AKCOME vs KB Solar - Brand Comparison | ComparePV" description: "Compare AKCOME vs KB Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/akcome-vs-kb-solar" --- # AKCOME vs KB Solar KB Solar has the broader catalog (5 vs 3 models). AKCOME leads on peak efficiency at 22.54%. ## The two companies | Attribute | AKCOME | KB Solar | | --- | --- | --- | | Country | China | | | Headquarters | Suzhou | | | Founded | 2003 | | | Employees | | | | Annual capacity | | | | Tier 1 | no | no | | Listed | | | | Website | [https://www.akcome.com](https://www.akcome.com) | | ## Catalog & Power | Measure | AKCOME | KB Solar | Margin | | --- | --- | --- | --- | | Panel Models | 3 | 5 | +2 | | Max Power | 700 W | 385 W | +315 W | | Avg Power | 672 W | 375 W | +297 W | ## Efficiency | Measure | AKCOME | KB Solar | Margin | | --- | --- | --- | --- | | Max Efficiency | 22.54% | 20.90% | +1.64 pp | | Avg Efficiency | 21.63% | 20.38% | +1.25 pp | ## Reliability & Warranty | Measure | AKCOME | KB Solar | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.240%/°C | -0.330%/°C | +0.090 | | Bifacial Share | 3 (100%) | 5 (100%) | | | Avg Warranty | 30.0 yrs | 30.0 yrs | | ## Efficiency distribution | Efficiency band | AKCOME | KB Solar | | --- | --- | --- | | 21-22% | 2 (66.7%) | 0 | | 22-23% | 1 (33.3%) | 0 | | 20-21% | 0 | 5 (100.0%) | ## Power distribution AKCOME offers more 600W+ panels (100% of lineup) | Power band | AKCOME | KB Solar | | --- | --- | --- | | 600-699W | 2 (66.7%) | 0 | | 700W+ | 1 (33.3%) | 0 | | \<400W | 0 | 5 (100.0%) | ## Cell technology Dominant cell tech: **HJT** (100%) Dominant cell tech: **PERC** (100%) | Technology | AKCOME | KB Solar | | --- | --- | --- | | HJT | 3 (100.0%) | 0 | | PERC | 0 | 5 (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, KB Solar | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [KBS-385](https://comparepv.com/panel/kb-solar-kbs-385) | 385 | 20.9 | -0.330 | Monocrystalline | | 2 | [KBS-380](https://comparepv.com/panel/kb-solar-kbs-380) | 380 | 20.6 | -0.330 | Monocrystalline | | 3 | [KBS-375](https://comparepv.com/panel/kb-solar-kbs-375) | 375 | 20.3 | -0.330 | Monocrystalline | | 4 | [KBS-370](https://comparepv.com/panel/kb-solar-kbs-370) | 370 | 20.1 | -0.330 | Monocrystalline | | 5 | [KBS-365](https://comparepv.com/panel/kb-solar-kbs-365) | 365 | 20.0 | -0.330 | Monocrystalline | ## Summary AKCOME (Akcome Optronics Science and Technology) is a Chinese solar manufacturer founded in 2003 and headquartered in Zhejiang province, China, with announced HJT production capacity in the multi-gigawatt range and a history of ambitious capacity expansion plans. KB Solar is a far newer and smaller operation, established in 2021 in Spartanburg, South Carolina, USA, with an annual manufacturing capacity of approximately 120 MW. Neither company holds Tier 1 bankability status. AKCOME was delisted from major module-tracking lists after its website became inaccessible, and its parent entity entered bankruptcy proceedings in 2024 - a development that raises material concerns about long-term warranty support. KB Solar has no publicly known financial distress but operates at a scale far below any institutional benchmark. In terms of industrial heritage and production volume AKCOME has the deeper footprint, though that advantage is significantly undercut by its 2024 insolvency. On the portfolio side the two lineups differ sharply. AKCOME's range relies entirely on HJT cell technology with 100% bifacial construction, averaging 671 Wp per panel and reaching a maximum of 700 Wp, with a mean module efficiency of 21.6% and a peak of 22.54%. Its temperature coefficient for Pmax averages -0.24%/C, one of the most favorable figures available in commercial production, meaning output degradation on hot days is relatively contained. This suite fits large commercial rooftops or ground mounts where power density and high-temperature performance justify a premium. KB Solar's five-panel lineup is built entirely on PERC technology, also 100% bifacial, but centers on 375 Wp average output and a 385 Wp maximum. Mean efficiency is 20.4%, peaking at 20.9%, and the temperature coefficient averages -0.33%/C - a meaningfully larger heat penalty. These are smaller-format panels well matched to residential rooftops or domestic-content-sensitive commercial projects. Both brands offer 30-year warranty terms. For a typical 2025 buyer, AKCOME's HJT modules are the stronger technical product on every measurable dimension - efficiency, power output, and thermal behavior - but the 2024 bankruptcy filing makes the warranty a real liability unless backed by third-party insurance. KB Solar delivers modest PERC performance with no standout technical edge, yet its US manufacturing base and apparent financial stability may matter more than efficiency percentages for buyers who require domestic content compliance or a reachable warranty partner. Neither brand is a default recommendation where Tier 1 alternatives are accessible; the choice between them ultimately trades technical performance against counterparty risk. \---LINKS--- \- https://www.pv-magazine.com/2023/06/07/akcome-unveils-730-w-heterojunction-solar-panel/ \| AKCOME unveils 730 W heterojunction solar modules \| article \- https://www.pv-magazine.com/2024/01/02/chinese-pv-industry-brief-akcome-sets-up-pilot-factory-for-perovskite-pv-cells/ \| AKCOME sets up pilot factory for perovskite PV cells \| article \- https://taiyangnews.info/topmodules/top-solar-modules-listing-january-2025 \| TaiyangNews Top Solar Modules Listing - January 2025 \| article \- https://www.solarquotes.com.au/panels/akcome-review.html \| AKCOME Solar Panels Review - SolarQuotes \| review \- https://hjtpv.com/hjt-producers/akcome-solar-panel/ \| AKCOME HJT solar panel producer profile - HJT PV \| review 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 KB Solar](https://comparepv.com/ae-solar-vs-kb-solar) - [AKCOME vs AEET](https://comparepv.com/akcome-vs-aeet) - [AIKO vs KB Solar](https://comparepv.com/aiko-vs-kb-solar) - [AKCOME vs ARTsolar](https://comparepv.com/akcome-vs-artsolar) - [ASM vs KB Solar](https://comparepv.com/asm-vs-kb-solar) --- Source: https://comparepv.com/akcome-vs-kb-solar Not in this file, on the page: the distributions above drawn as charts.