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

# Emmvee vs Longi Solar

Longi Solar has the broader catalog (255 vs 166 models). Longi Solar leads on peak efficiency at 25.00%. Emmvee leans bifacial (55% of lineup).


## The two companies


| Attribute | Emmvee | Longi Solar |
| --- | --- | --- |
| Country | India | China |
| Headquarters | Bengaluru | Xi'an, Shaanxi |
| Founded | 1992 | 2000 |
| Employees |  | 37,853 |
| Annual capacity |  | 85-90 GW/year |
| Tier 1 | no | yes |
| Listed |  | Shanghai Stock Exchange: 601012 |
| Website | [https://www.emmveephotovoltaic.com](https://www.emmveephotovoltaic.com) | [https://www.longi.com](https://www.longi.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...


## Catalog & Power


| Measure | Emmvee | Longi Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 166 | 255 | +89 |
| Max Power | 720 W | 670 W | +50 W |
| Avg Power | 526 W | 544 W | +17 W |


## Efficiency


| Measure | Emmvee | Longi Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.51% | 25.00% | +1.49 pp |
| Avg Efficiency | 21.69% | 22.65% | +0.96 pp |


## Reliability & Warranty


| Measure | Emmvee | Longi Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.311%/°C | -0.291%/°C | +0.020 |
| Bifacial Share | 91 (55%) | 101 (40%) | +15 pp |
| Avg Warranty | 27.0 yrs | 27.8 yrs | +0.8 yr |


## Efficiency distribution

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


| Efficiency band | Emmvee | Longi Solar |
| --- | --- | --- |
| \<20% | 1 (0.6%) | 3 (1.2%) |
| 20-21% | 48 (28.9%) | 26 (10.2%) |
| 21-22% | 47 (28.3%) | 47 (18.4%) |
| 22-23% | 54 (32.5%) | 70 (27.5%) |
| 23%+ | 16 (9.6%) | 109 (42.7%) |


## Power distribution

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


| Power band | Emmvee | Longi Solar |
| --- | --- | --- |
| \<400W | 6 (3.6%) | 8 (3.1%) |
| 400-499W | 62 (37.3%) | 81 (31.8%) |
| 500-599W | 72 (43.4%) | 70 (27.5%) |
| 600-699W | 16 (9.6%) | 96 (37.6%) |
| 700W+ | 10 (6.0%) | 0 |


## Cell technology

Dominant cell tech: **TOPCon** (61%)

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


| Technology | Emmvee | Longi Solar |
| --- | --- | --- |
| TOPCon | 102 (61.4%) | 0 |
| PERC | 63 (38.0%) | 51 (20.0%) |
| N-type | 1 (0.6%) | 107 (42.0%) |
| Unknown | 0 | 55 (21.6%) |
| Back Contact | 0 | 42 (16.5%) |


## Top panels, Emmvee


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [E720HCBG 132-T](https://comparepv.com/panel/emmvee-e720hcbg-132-t) | 720 | 23.2 | -0.290 | Monocrystalline |
| 2 | [E720HCBG132-T](https://comparepv.com/panel/emmvee-e720hcbg132-t) | 720 | 23.2 | -0.290 | Monocrystalline |
| 3 | [E715HCBG 132-T](https://comparepv.com/panel/emmvee-e715hcbg-132-t) | 715 | 23.0 | -0.290 | Monocrystalline |
| 4 | [E715HCBG132-T](https://comparepv.com/panel/emmvee-e715hcbg132-t) | 715 | 23.0 | -0.290 | Monocrystalline |
| 5 | [E710HCBG 132-T](https://comparepv.com/panel/emmvee-e710hcbg-132-t) | 710 | 22.9 | -0.290 | Monocrystalline |
| 6 | [E710HCBG132-T](https://comparepv.com/panel/emmvee-e710hcbg132-t) | 710 | 22.9 | -0.290 | Monocrystalline |
| 7 | [E705HCBG 132-T](https://comparepv.com/panel/emmvee-e705hcbg-132-t) | 705 | 22.7 | -0.290 | Monocrystalline |
| 8 | [E705HCBG132-T](https://comparepv.com/panel/emmvee-e705hcbg132-t) | 705 | 22.7 | -0.290 | Monocrystalline |
| 9 | [E700HCBG 132-T](https://comparepv.com/panel/emmvee-e700hcbg-132-t) | 700 | 22.5 | -0.290 | Monocrystalline |
| 10 | [E700HCBG132-T](https://comparepv.com/panel/emmvee-e700hcbg132-t) | 700 | 22.5 | -0.290 | Monocrystalline |


## 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

Emmvee is an Indian solar manufacturer headquartered in Bengaluru, founded in 1992 as a solar water heater producer before pivoting to photovoltaic modules in 2007. Total module manufacturing capacity reached approximately 10.3 GW following the commissioning of a new 2.5 GW line in Sulibele in late 2025, making it one of India's largest PV producers by volume. Emmvee does not currently appear on the BloombergNEF Tier 1 module list, but it has distinguished itself as the only Indian company to pass all seven Kiwa PVEL 2024 Reliability Scorecard assessments - a credible bankability signal for project financiers. LONGi Solar, founded in 2000 and headquartered in Xi'an, China, operates at an entirely different scale: the company has disclosed in-house cell capacity of approximately 46 GW and plans to ship around 80 GW of modules in 2026, consistently holding BloombergNEF Tier 1 status and earning a "Double Tier 1" designation in 2025 by also appearing on BNEF's energy storage bankability list. On institutional footprint, LONGi holds the considerably stronger global position.

Emmvee's portfolio centers on monocrystalline modules using PERC and TOPCon cell technology, covering output from roughly 385 W to 580 W with efficiencies between approximately 19.7% and 22.4%. The company targets utility-scale and commercial projects in India and Europe, supported by sales offices in Germany and the United States, with bifacial modules rated for 40 mm hail resistance. LONGi has moved decisively past TOPCon, positioning its proprietary HPBC 2.0 (Hybrid Passivated Back Contact) as its core commercial technology, while its newer HIBC cells - combining heterojunction-style passivation with a full back-contact architecture - represent the leading edge of its roadmap. The Hi-MO 9 series serves utility-scale ground-mount projects, while the EcoLife series, delivering up to 510 W with meaningfully reduced shading losses compared to standard TOPCon products, is designed for residential rooftop installations.

For most international buyers financing large utility or commercial projects, LONGi is the stronger default: its scale, continuous BNEF Tier 1 bankability, and proprietary back-contact technology pipeline give it a clear edge in project finance due diligence. Emmvee is a well-founded alternative for buyers prioritising Indian-manufactured content - relevant under India's Approved List of Models and Manufacturers scheme - or for European buyers seeking supply-chain diversification away from Chinese producers. Outside India, Emmvee's channel reach and service network are markedly narrower than LONGi's, which is a meaningful practical consideration for residential and small commercial buyers.

Written by claude-sonnet from the figures above.


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Source: https://comparepv.com/emmvee-vs-longi-solar

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