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

# AKCOME vs S-Energy

S-Energy has the broader catalog (91 vs 3 models). AKCOME leads on peak efficiency at 22.54%. AKCOME leans bifacial (100% of lineup).


## The two companies


| Attribute | AKCOME | S-Energy |
| --- | --- | --- |
| Country | China | South Korea |
| Headquarters | Suzhou | Seoul |
| Founded | 2003 | 2011 |
| Employees |  |  |
| Annual capacity |  |  |
| Tier 1 | no | no |
| Listed |  |  |
| Website | [https://www.akcome.com](https://www.akcome.com) | [https://www.s-energy.com](https://www.s-energy.com) |


## Catalog & Power


| Measure | AKCOME | S-Energy | Margin |
| --- | --- | --- | --- |
| Panel Models | 3 | 91 | +88 |
| Max Power | 700 W | 665 W | +35 W |
| Avg Power | 672 W | 512 W | +159 W |


## Efficiency


| Measure | AKCOME | S-Energy | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 22.54% | 22.38% | +0.16 pp |
| Avg Efficiency | 21.63% | 21.00% | +0.63 pp |


## Reliability & Warranty


| Measure | AKCOME | S-Energy | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.240%/°C | -0.339%/°C | +0.099 |
| Bifacial Share | 3 (100%) | 70 (77%) | +23 pp |
| Avg Warranty | 30.0 yrs | 27.7 yrs | +2.3 yr |


## Efficiency distribution


| Efficiency band | AKCOME | S-Energy |
| --- | --- | --- |
| 21-22% | 2 (66.7%) | 34 (37.4%) |
| 22-23% | 1 (33.3%) | 7 (7.7%) |
| 20-21% | 0 | 50 (54.9%) |


## Power distribution

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


| Power band | AKCOME | S-Energy |
| --- | --- | --- |
| 600-699W | 2 (66.7%) | 11 (12.1%) |
| 700W+ | 1 (33.3%) | 0 |
| \<400W | 0 | 4 (4.4%) |
| 400-499W | 0 | 36 (39.6%) |
| 500-599W | 0 | 40 (44.0%) |


## Cell technology

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

Dominant cell tech: **PERC** (59%)


| Technology | AKCOME | S-Energy |
| --- | --- | --- |
| HJT | 3 (100.0%) | 0 |
| PERC | 0 | 54 (59.3%) |
| TOPCon | 0 | 25 (27.5%) |
| Unknown | 0 | 12 (13.2%) |


## 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, S-Energy


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SL85-66BDL-665R](https://comparepv.com/panel/s-energy-sl85-66bdl-665r) | 665 | 21.4 | -0.340 | Monocrystalline |
| 2 | [SL85-66BDL-660R](https://comparepv.com/panel/s-energy-sl85-66bdl-660r) | 660 | 21.3 | -0.340 | Monocrystalline |
| 3 | [SL85-66BDL-655R](https://comparepv.com/panel/s-energy-sl85-66bdl-655r) | 655 | 21.1 | -0.340 | Monocrystalline |
| 4 | [SL85-66BDL-650R](https://comparepv.com/panel/s-energy-sl85-66bdl-650r) | 650 | 20.9 | -0.340 | Monocrystalline |
| 5 | [SL85-66BDL-645R](https://comparepv.com/panel/s-energy-sl85-66bdl-645r) | 645 | 20.8 | -0.340 | Monocrystalline |
| 6 | [SL65-78TDP-625R](https://comparepv.com/panel/s-energy-sl65-78tdp-625r) | 625 | 22.4 | -0.300 | Monocrystalline |
| 7 | [SL65-78TDP-620R](https://comparepv.com/panel/s-energy-sl65-78tdp-620r) | 620 | 22.2 | -0.300 | Monocrystalline |
| 8 | [SL65-78TDP-615R](https://comparepv.com/panel/s-energy-sl65-78tdp-615r) | 615 | 22.0 | -0.300 | Monocrystalline |
| 9 | [SL65-78TDP-610R](https://comparepv.com/panel/s-energy-sl65-78tdp-610r) | 610 | 21.8 | -0.300 | Monocrystalline |
| 10 | [SL65-78TDP-605R](https://comparepv.com/panel/s-energy-sl65-78tdp-605r) | 605 | 21.7 | -0.300 | Monocrystalline |


## Summary

AKCOME, founded in 2003 and headquartered in China, built an aggressive HJT production footprint - reporting a 6 GW panel factory in Huzhou - but the company's parent entity, Zhejiang Akcome Photoelectricity Technology, filed for bankruptcy in 2024 amid the broader Chinese solar price collapse. It was subsequently removed from the BloombergNEF Tier 1 list in early 2025. S-Energy, by contrast, is a South Korean manufacturer established in 2011 with a more modest but reportedly stable manufacturing base of roughly 500 MW per year in Daejeon. Neither company currently holds Tier 1 bankable status, but S-Energy's institutional footprint - a broad 91-panel portfolio versus AKCOME's three listed models, and no reported insolvency proceedings - gives it a meaningfully more secure standing with project lenders.

On paper, AKCOME's portfolio carries the stronger technical specifications. Its average module power of 672 Wp and average efficiency of 21.6%, peaking at 700 Wp and 22.54%, reflect the premium characteristics of its 100% HJT cell lineup. The temperature coefficient of -0.24%/degC is notably gentler than S-Energy's -0.34%/degC, meaning AKCOME panels lose less output during hot field conditions. Every AKCOME panel in the portfolio is bifacial, and the average product warranty runs to 30 years. S-Energy, whose portfolio leans heavily on PERC technology (roughly 59% of models), averages 512 Wp with a peak at 665 Wp and a top efficiency of 22.38%; about 77% of its lineup is bifacial, and average warranty coverage sits near 27.7 years. AKCOME's specs suit high-density rooftop or ground-mount projects where every watt-per-square-metre counts; S-Energy's wider, more varied catalog fits commercial and mid-scale utility buyers seeking a tested, standard-technology option.

For most buyers in 2025, the safer choice is S-Energy, not because its panels are technically superior - they are not - but because sourcing from a manufacturer currently in bankruptcy proceedings introduces real warranty, supply-chain, and financing risk that outweighs the efficiency and power advantage. Buyers who have already locked in AKCOME supply with escrow-backed warranty provisions may still find value in the higher-performing HJT modules, but any new procurement should treat the financial instability as a primary disqualifier until the company's legal situation is fully resolved.

\---LINKS---

\- https://www.pv-tech.org/akcome-technologies-on-hjt-cell-production/ \| Akcome Technology on HJT cell production and copper plating processes \| article

\- 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://hjtpv.com/hjt-producers/akcome-solar-panel/ \| AKCOME Solar Panel - HJT PV module producer profile \| review

\- https://www.solarreviews.com/blog/s-energy-solar-panels-review \| S-Energy Solar Panels Review - Are They Worth Buying? \| review

\- https://taiyangnews.info/topmodules/top-solar-modules-listing-january-2025 \| TOP SOLAR MODULES Listing - January 2025 \| article

Sources:

\- \[Akcome Technology on HJT cell production - PV Tech\](https://www.pv-tech.org/akcome-technologies-on-hjt-cell-production/)

\- \[Akcome unveils 730 W heterojunction solar panel - PV Magazine\](https://www.pv-magazine.com/2023/06/07/akcome-unveils-730-w-heterojunction-solar-panel/)

\- \[AKCOME Solar Panel - HJT PV Producers\](https://hjtpv.com/hjt-producers/akcome-solar-panel/)

\- \[S-Energy Solar Panels Review - SolarReviews\](https://www.solarreviews.com/blog/s-energy-solar-panels-review)

\- \[TOP SOLAR MODULES Listing January 2025 - TaiyangNews\](https://taiyangnews.info/topmodules/top-solar-modules-listing-january-2025)

\- \[Jiangsu Akcome raising funds for 1.32 GW HJT plant - PV Tech\](https://www.pv-tech.org/jiangsu-akcome-raising-funds-to-build-second-phase-1-32gw-integrated-hetero/)

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 S-Energy](https://comparepv.com/ae-solar-vs-s-energy)
- [AKCOME vs AEET](https://comparepv.com/akcome-vs-aeet)
- [AIKO vs S-Energy](https://comparepv.com/aiko-vs-s-energy)
- [AKCOME vs ARTsolar](https://comparepv.com/akcome-vs-artsolar)
- [ASM vs S-Energy](https://comparepv.com/asm-vs-s-energy)


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Source: https://comparepv.com/akcome-vs-s-energy

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