---
title: "Longi Solar vs A.B. Energy - Brand Comparison | ComparePV"
description: "Compare Longi Solar vs A.B. Energy solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/longi-solar-vs-a-b-energy"
---

# Longi Solar vs A.B. Energy

Longi Solar has the broader catalog (255 vs 0 models). Longi Solar leans bifacial (40% of lineup).


## The two companies


| Attribute | Longi Solar | A.B. Energy |
| --- | --- | --- |
| Country | China | Germany |
| Headquarters | Xi'an, Shaanxi | Wiesbaden |
| Founded | 2000 | 1996 |
| Employees | 37,853 | 1,400 |
| Annual capacity | 85-90 GW/year |  |
| Tier 1 | yes |  |
| Listed | Shanghai Stock Exchange: 601012 | Xetra, Frankfurt Stock Exchange: AB9 |
| Website | [https://www.longi.com](https://www.longi.com) | [https://abo-energy.com](https://abo-energy.com) |

LONGi Green Energy Technology Co., Ltd. is a world-leading solar technology company that manufactures monocrystalline silicon wafers and modules. The company is committed to providing high-efficiency and reliable clean energy solutions for large-scale power plants, various industries, and households. LONGi aims to be...

ABO Energy is a renewable energy company that develops and constructs renewable energy projects, focusing on wind, solar, and storage facilities. They offer turnkey solutions and have connected several gigawatts of nominal output to the grid. The company is active internationally and is committed to driving the energy...


## Catalog & Power


| Measure | Longi Solar | A.B. Energy | Margin |
| --- | --- | --- | --- |
| Panel Models | 255 | 0 | +255 |
| Max Power | 670 W | 0 W | +670 W |
| Avg Power | 544 W | 0 W | +544 W |


## Efficiency


| Measure | Longi Solar | A.B. Energy | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 25.00% | - |  |
| Avg Efficiency | 22.65% | - |  |


## Reliability & Warranty


| Measure | Longi Solar | A.B. Energy | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.291%/°C | - |  |
| Bifacial Share | 101 (40%) | 0 (0%) | +40 pp |
| Avg Warranty | 27.8 yrs | - |  |


## Efficiency distribution

Longi Solar skews to higher efficiency: 43% of lineup is 23%+


| Efficiency band | Longi Solar | A.B. Energy |
| --- | --- | --- |
| \<20% | 3 (1.2%) | 0 |
| 20-21% | 26 (10.2%) | 0 |
| 21-22% | 47 (18.4%) | 0 |
| 22-23% | 70 (27.5%) | 0 |
| 23%+ | 109 (42.7%) | 0 |


## Power distribution

Longi Solar offers more 600W+ panels (38% of lineup)


| Power band | Longi Solar | A.B. Energy |
| --- | --- | --- |
| \<400W | 8 (3.1%) | 0 |
| 400-499W | 81 (31.8%) | 0 |
| 500-599W | 70 (27.5%) | 0 |
| 600-699W | 96 (37.6%) | 0 |


## Cell technology

Dominant cell tech: **N-type** (42%)


| Technology | Longi Solar | A.B. Energy |
| --- | --- | --- |
| N-type | 107 (42.0%) | 0 |
| Unknown | 55 (21.6%) | 0 |
| PERC | 51 (20.0%) | 0 |
| Back Contact | 42 (16.5%) | 0 |


## Top panels, Longi Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 | 24.8 | -0.260 | Monocrystalline |
| 2 | [LR8-66HYD-670M](https://comparepv.com/panel/longi-lr8-66hyd-670m) | 670 | 24.8 | -0.260 | Monocrystalline |
| 3 | [LR7-72HVH-670M](https://comparepv.com/panel/longi-lr7-72hvh-670m) | 670 | 24.8 | -0.260 | Monocrystalline |
| 4 | [LR7-72HVHF-665M](https://comparepv.com/panel/longi-lr7-72hvhf-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 5 | [LR7-72HVDF-665M](https://comparepv.com/panel/longi-lr7-72hvdf-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 6 | [LR8-66HVD-665M](https://comparepv.com/panel/longi-lr8-66hvd-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 7 | [LR8-66HYD-665M](https://comparepv.com/panel/longi-lr8-66hyd-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 8 | [LR7-72HVD-665M](https://comparepv.com/panel/longi-lr7-72hvd-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 9 | [LR7-72HVH-665M](https://comparepv.com/panel/longi-lr7-72hvh-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 10 | [LR7-72HVHF-660M](https://comparepv.com/panel/longi-lr7-72hvhf-660m) | 660 | 24.4 | -0.260 | Monocrystalline |


## Summary

LONGi Solar is a Chinese manufacturer headquartered in Xi'an, Shaanxi Province, founded in 2000 and now one of the largest solar producers in the world. The company has been consistently ranked as a Tier 1 module manufacturer by BloombergNEF - most recently in Q1 2026 - and shipped more than 63 GW of solar cells and modules in the first nine months of 2025 alone, representing roughly 24% year-on-year growth. A.B. Energy, by contrast, is an Italian company that operates primarily as a distributor and reseller of energy efficiency and photovoltaic products, with roots in the electrical and electronics sector. No credible industry database or independent review source - including BloombergNEF's Tier 1 lists, ENF Solar, or pv-tech.org - classifies A.B. Energy as a module manufacturer in its own right. The institutional footprint between the two is not comparable: LONGi is a globally dominant vertically integrated producer; A.B. Energy is a regional intermediary.

LONGi's product catalog centers on its Hi-MO series, which spans residential, commercial, and utility-scale ground-mount applications. The company's dominant cell technology has shifted away from PERC toward its proprietary back-contact architecture - HPBC 2.0 for mainstream deployments and the newly launched HIBC for premium, high-efficiency applications. TUV Rheinland has certified HPBC 2.0 modules for superior anti-shading performance, and at SNEC 2025 LONGi officially unveiled HIBC mass-production modules with cell efficiencies above 27%. A.B. Energy, as a distributor, does not manufacture or certify its own cell technology; the brands and panels it resells vary and are not independently documented in major review outlets.

For any buyer evaluating these two side by side in 2025, LONGi is the clear default choice for projects of almost any scale - residential rooftops, commercial installations, or utility farms - where bankability, long-term warranty support, and documented technology performance matter. A.B. Energy may serve a niche role as a local sourcing channel in Italy, but it cannot be compared to LONGi as a manufacturer peer.

\---LINKS---

\- https://www.solarreviews.com/blog/longi-solar-panels \| Expert Review of LONGi Solar Panels - SolarReviews \| review

\- https://www.cleanenergyreviews.info/blog/longi-solar-panels-review \| LONGi Solar Panels Review - Clean Energy Reviews \| review

\- https://taiyangnews.info/technology/longi-hibc-hpbc-tairay-snec \| LONGi Displays 25%+ Efficiency BC Module At SNEC 2025 - TaiyangNews \| article

\- https://now.solar/2026/03/21/longi-ranked-tier-1-module-and-storage-manufacturer-by-bloombergnef-longi/ \| LONGi Ranked Tier 1 Module and Storage Manufacturer by BloombergNEF \| article

\- https://www.enfsolar.com/a-b-energy \| A.B. Energy SRLS - ENF Solar Company Directory \| article

Sources:

\- \[LONGi Ranked Tier 1 Module and Storage Manufacturer by BloombergNEF\](https://now.solar/2026/03/21/longi-ranked-tier-1-module-and-storage-manufacturer-by-bloombergnef-longi/)

\- \[Expert Review of LONGi Solar Panels - SolarReviews\](https://www.solarreviews.com/blog/longi-solar-panels)

\- \[LONGi Solar Panels Review - Clean Energy Reviews\](https://www.cleanenergyreviews.info/blog/longi-solar-panels-review)

\- \[LONGi Displays 25%+ Efficiency BC Module At SNEC 2025 - TaiyangNews\](https://taiyangnews.info/technology/longi-hibc-hpbc-tairay-snec)

\- \[A.B. Energy SRLS - ENF Solar Company Directory\](https://www.enfsolar.com/a-b-energy)

Written by claude-sonnet from the figures above.


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- [AKCOME vs A.B. Energy](https://comparepv.com/akcome-vs-a-b-energy)
- [Longi Solar vs ARTsolar](https://comparepv.com/longi-solar-vs-artsolar)
- [ASM vs A.B. Energy](https://comparepv.com/asm-vs-a-b-energy)


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Source: https://comparepv.com/longi-solar-vs-a-b-energy

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