---
title: "AKCOME vs CSUN - Brand Comparison | ComparePV"
description: "Compare AKCOME vs CSUN solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/akcome-vs-csun"
---

# AKCOME vs CSUN

CSUN has the broader catalog (35 vs 3 models). AKCOME leads on peak efficiency at 22.54%. AKCOME leans bifacial (100% of lineup).


## The two companies


| Attribute | AKCOME | CSUN |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Suzhou | Nanjing |
| Founded | 2003 | 2004 |
| Employees |  | 1000-5000 |
| Annual capacity |  | 2-3 GW/year |
| Tier 1 | no | yes |
| Listed |  |  |
| Website | [https://www.akcome.com](https://www.akcome.com) | [https://www.csun-solar.com](https://www.csun-solar.com) |

China Sunergy (CSUN) is a Chinese manufacturer of solar cells and photovoltaic modules headquartered in Nanjing, Jiangsu. The company produces high-efficiency mono- and multicrystalline solar cells and modules from production facilities in China and, historically, Turkey. It was formerly listed on NASDAQ and was...


## Catalog & Power


| Measure | AKCOME | CSUN | Margin |
| --- | --- | --- | --- |
| Panel Models | 3 | 35 | +32 |
| Max Power | 700 W | 670 W | +30 W |
| Avg Power | 672 W | 478 W | +194 W |


## Efficiency


| Measure | AKCOME | CSUN | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 22.54% | 21.60% | +0.94 pp |
| Avg Efficiency | 21.63% | 20.15% | +1.48 pp |


## Reliability & Warranty


| Measure | AKCOME | CSUN | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.240%/°C | -0.366%/°C | +0.126 |
| Bifacial Share | 3 (100%) | 0 (0%) | +100 pp |
| Avg Warranty | 30.0 yrs | 25.0 yrs | +5.0 yr |


## Efficiency distribution


| Efficiency band | AKCOME | CSUN |
| --- | --- | --- |
| 21-22% | 2 (66.7%) | 11 (31.4%) |
| 22-23% | 1 (33.3%) | 0 |
| \<20% | 0 | 11 (31.4%) |
| 20-21% | 0 | 13 (37.1%) |


## Power distribution

AKCOME offers more 600W+ panels (100% of lineup)


| Power band | AKCOME | CSUN |
| --- | --- | --- |
| 600-699W | 2 (66.7%) | 7 (20.0%) |
| 700W+ | 1 (33.3%) | 0 |
| \<400W | 0 | 15 (42.9%) |
| 400-499W | 0 | 5 (14.3%) |
| 500-599W | 0 | 8 (22.9%) |


## Cell technology

Dominant cell tech: **HJT** (100%)

Dominant cell tech: **PERC** (94%)


| Technology | AKCOME | CSUN |
| --- | --- | --- |
| HJT | 3 (100.0%) | 0 |
| PERC | 0 | 33 (94.3%) |
| TOPCon | 0 | 2 (5.7%) |


## 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, CSUN


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [CSUN670-132M](https://comparepv.com/panel/csun-csun670-132m) | 670 | 21.6 | -0.350 | Monocrystalline |
| 2 | [CSUN665-132M](https://comparepv.com/panel/csun-csun665-132m) | 665 | 21.4 | -0.350 | Monocrystalline |
| 3 | [CSUN660-132M](https://comparepv.com/panel/csun-csun660-132m) | 660 | 21.2 | -0.350 | Monocrystalline |
| 4 | [CSUN655-132M](https://comparepv.com/panel/csun-csun655-132m) | 655 | 21.1 | -0.350 | Monocrystalline |
| 5 | [CSUN650-132M](https://comparepv.com/panel/csun-csun650-132m) | 650 | 20.9 | -0.350 | Monocrystalline |
| 6 | [CSUN645-132M](https://comparepv.com/panel/csun-csun645-132m) | 645 | 20.8 | -0.350 | Monocrystalline |
| 7 | [CSUN600-156M](https://comparepv.com/panel/csun-csun600-156m) | 600 | 21.4 | -0.360 | Monocrystalline |
| 8 | [CSUN595-156M](https://comparepv.com/panel/csun-csun595-156m) | 595 | 21.2 | -0.360 | Monocrystalline |
| 9 | [CSUN590-156M](https://comparepv.com/panel/csun-csun590-156m) | 590 | 21.1 | -0.360 | Monocrystalline |
| 10 | [CSUN585-156M](https://comparepv.com/panel/csun-csun585-156m) | 585 | 20.9 | -0.360 | Monocrystalline |


## Summary

AKCOME is a Chinese solar module manufacturer based in Zhejiang province, historically recognized on BloombergNEF's Tier 1 list with peak annual production capacity reported around 3.8 GW, later expanded with plans for additional N-type cell and module capacity at its Changxing base. However, the company's institutional standing has deteriorated sharply: a subsidiary entered court-supervised bankruptcy reorganization in July 2024, the Shenzhen Stock Exchange terminated its listing in August 2024, and it was dropped from top-tier module tracking lists in early 2025. CSUN, also known as China Sunergy, was founded in 2006 in Nanjing and operates a smaller production footprint of roughly 2.5 GW annually, with manufacturing spread across China, the USA, Turkey, South Korea and Vietnam; it is not consistently listed on the BloombergNEF Tier 1 register despite some of its own marketing claiming Tier 1 status. Given AKCOME's recent delisting and bankruptcy proceedings versus CSUN's longer, more stable operating history since its 2010 acquisition by CEEG, CSUN currently presents the steadier institutional footprint, even though its historical Tier 1 credentials are less firmly documented.

AKCOME's product lineup has centered on TOPCon and HJT half-cut bifacial dual-glass modules, such as the SK9609TDGDC-440, with efficiencies reported up to about 22.5 percent and a 15-year product warranty, positioning the brand toward higher-efficiency residential and utility-scale bifacial applications. CSUN's catalog spans both polycrystalline and monocrystalline panels with module efficiency around 20.4 percent, a 12-year product warranty and 25-year performance warranty, and the brand is generally described as a mid-range "best value" option aimed at mass-market residential and commercial rooftops rather than premium or cutting-edge bifacial deployments.

For a typical buyer in 2025, CSUN is the more conservative default choice given AKCOME's unresolved bankruptcy proceedings, which introduce meaningful warranty continuity risk despite AKCOME's technically more advanced panel specifications. Buyers prioritizing efficiency and willing to accept elevated financial-stability risk might still consider AKCOME, but for most residential or commercial projects where long-term warranty support matters, CSUN's steadier corporate history makes it the safer, if less cutting-edge, option.

\---LINKS---

\- https://www.solarquotes.com.au/panels/akcome-review.html \| AKCOME Solar Panels Independent Review \| review

\- https://comparepv.com/reviews/akcome \| AKCOME Solar Panels Review 2026: Pros, Cons and Specs \| review

\- https://hjtpv.com/hjt-producers/akcome-solar-panel/ \| AKCOME Solar Panels HJT and TOPCon Producer Overview \| article

\- https://www.energysage.com/supplier/465/CSUN\_sunergy/ \| CSUN China Sunergy Profile and Reviews \| review

\- https://www.solarreviews.com/manufacturers/csun \| Are CSUN Solar Tech panels the best solar panels to buy \| review

Written by claude-sonnet-5 from the figures above.


## Other comparisons

- [AKCOME vs A.B. Energy](https://comparepv.com/akcome-vs-a-b-energy)
- [AE Solar vs CSUN](https://comparepv.com/ae-solar-vs-csun)
- [AKCOME vs AEET](https://comparepv.com/akcome-vs-aeet)
- [AIKO vs CSUN](https://comparepv.com/aiko-vs-csun)
- [AKCOME vs ARTsolar](https://comparepv.com/akcome-vs-artsolar)
- [ASM vs CSUN](https://comparepv.com/asm-vs-csun)


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Source: https://comparepv.com/akcome-vs-csun

Not in this file, on the page: the distributions above drawn as charts.