---
title: "HT-SAAE vs Longi Solar - Brand Comparison | ComparePV"
description: "Compare HT-SAAE vs Longi Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/ht-saae-vs-longi-solar"
image: "https://comparepv.com/og/compare/manufacturers/ht-saae/longi-solar.png"
---

# HT-SAAE vs Longi Solar

Longi Solar has the broader catalog (255 vs 112 models). Longi Solar leads on peak efficiency at 25.00%.


## The two companies


| Attribute | HT-SAAE | Longi Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Shanghai | Xi'an, Shaanxi |
| Founded | 1998 | 2000 |
| Employees | 500+ | 37,853 |
| Annual capacity | 2+ GW/year | 85-90 GW/year |
| Tier 1 | yes | yes |
| Listed | Shanghai Stock Exchange: 600151:SHH | Shanghai Stock Exchange: 601012 |
| Website | [http://www.ht-saae.com](http://www.ht-saae.com) | [https://www.longi.com](https://www.longi.com) |

HT-SAAE (Shanghai Aerospace Automobile Electromechanical Co., Ltd.) is a state-owned enterprise specializing in photovoltaic products. The company integrates polysilicon, solar cells, battery packs, and photovoltaic + energy storage systems. They develop and manufacture solar panels for residential, commercial, and...

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 | HT-SAAE | Longi Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 112 | 255 | +143 |
| Max Power | 715 W | 670 W | +45 W |
| Avg Power | 470 W | 544 W | +74 W |


## Efficiency


| Measure | HT-SAAE | Longi Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.90% | 25.00% | +1.10 pp |
| Avg Efficiency | 20.47% | 22.65% | +2.18 pp |


## Reliability & Warranty


| Measure | HT-SAAE | Longi Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | -0.291%/°C | +0.031 |
| Bifacial Share | 53 (47%) | 101 (40%) | +8 pp |
| Avg Warranty | 29.1 yrs | 27.8 yrs | +1.3 yr |


## Efficiency distribution

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


| Efficiency band | HT-SAAE | Longi Solar |
| --- | --- | --- |
| \<20% | 30 (26.8%) | 3 (1.2%) |
| 20-21% | 4 (3.6%) | 26 (10.2%) |
| 21-22% | 12 (10.7%) | 47 (18.4%) |
| 22-23% | 39 (34.8%) | 70 (27.5%) |
| 23%+ | 27 (24.1%) | 109 (42.7%) |


## Power distribution

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


| Power band | HT-SAAE | Longi Solar |
| --- | --- | --- |
| \<400W | 30 (26.8%) | 8 (3.1%) |
| 400-499W | 33 (29.5%) | 81 (31.8%) |
| 500-599W | 29 (25.9%) | 70 (27.5%) |
| 600-699W | 16 (14.3%) | 96 (37.6%) |
| 700W+ | 4 (3.6%) | 0 |


## Cell technology

Dominant cell tech: TOPCon (79%)

Dominant cell tech: N-type (42%)


| Technology | HT-SAAE | Longi Solar |
| --- | --- | --- |
| TOPCon | 88 (78.6%) | 0 |
| PERC | 19 (17.0%) | 51 (20.0%) |
| Unknown | 5 (4.5%) | 55 (21.6%) |
| N-type | 0 | 107 (42.0%) |
| Back Contact | 0 | 42 (16.5%) |


## Top panels, HT-SAAE


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [HT66-210(ND)-F 715W](https://comparepv.com/panel/ht-saae-ht66-210-nd-f-715w) | 715 | 23.0 | -0.310 | Monocrystalline |
| 2 | [HT66-210(ND)-F 710W](https://comparepv.com/panel/ht-saae-ht66-210-nd-f-710w) | 710 | 22.9 | -0.310 | Monocrystalline |
| 3 | [HT66-210(ND)-F 705W](https://comparepv.com/panel/ht-saae-ht66-210-nd-f-705w) | 705 | 22.7 | -0.310 | Monocrystalline |
| 4 | [HT66-210(ND)-F 700W](https://comparepv.com/panel/ht-saae-ht66-210-nd-f-700w) | 700 | 22.5 | -0.310 | Monocrystalline |
| 5 | [HT66-210(ND)-F 695W](https://comparepv.com/panel/ht-saae-ht66-210-nd-f-695w) | 695 | 22.4 | -0.310 | Monocrystalline |
| 6 | [HT66-18X(N)-630W](https://comparepv.com/panel/ht-saae-ht66-18x-n-630w) | 630 | 23.3 | -0.310 | Monocrystalline |
| 7 | [HT66-18X(N)-625W](https://comparepv.com/panel/ht-saae-ht66-18x-n-625w) | 625 | 23.1 | -0.310 | Monocrystalline |
| 8 | [HT66-18X(ND)-F 620W](https://comparepv.com/panel/ht-saae-ht66-18x-nd-f-620w) | 620 | 23.0 | -0.310 | Monocrystalline |
| 9 | [HT66-18X(N)-620W](https://comparepv.com/panel/ht-saae-ht66-18x-n-620w) | 620 | 23.0 | -0.310 | Monocrystalline |
| 10 | [HT66-18X(ND)-F-620](https://comparepv.com/panel/ht-saae-ht66-18x-nd-f-620) | 620 | 23.0 | -0.310 | 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

HT-SAAE is a Chinese solar manufacturer headquartered in Shanghai, with origins in China's aerospace sector. The company was established in 1960 to develop solar technology for China's satellite program, and its parent - Shanghai Aerospace Automobile Electromechanical Co., Ltd, operating under the CASC group - entered commercial solar in 1998 upon listing on the Shanghai Stock Exchange. HT-SAAE holds confirmed BloombergNEF Tier 1 bankability status and operates production bases in China and Inner Mongolia, as well as a manufacturing subsidiary in Istanbul, Turkey, opened in 2016. LONGi Green Energy was founded in 2000 in Xi'an, Shaanxi, and has grown into one of the largest solar module suppliers globally. LONGi has consistently maintained BloombergNEF Tier 1 status and, as of Q1 2026, also achieved Tier 1 recognition in energy storage for the first time. With planned module shipments of 80-90 GW for 2025, LONGi's institutional footprint is in a substantially different league from HT-SAAE.

HT-SAAE's current product lineup is anchored in TOPCon technology, which dominates the company's catalog. The flagship Jupiter Series targets both residential rooftop and commercial ground-mount applications, with module efficiencies reaching up to 23.5%. The Istanbul production facility can offer a logistical and tariff advantage for European buyers seeking shorter supply chains. LONGi, by contrast, has positioned itself at the technological frontier: its HPBC 2.0 back-contact (BC) cell and module platform now exceeds 57 GW of total production capacity including collaborative manufacturing, and is expected to account for more than 65% of LONGi's shipments in 2026. The company serves every market segment, from residential rooftop to utility-scale ground-mount, across dozens of countries. Certified cell efficiency records - 25.82% for HJT and 33% for a crystalline silicon-perovskite tandem cell - reinforce LONGi's standing as the industry's R&D benchmark.

For most international buyers - independent installers, EPC contractors, or institutional project developers - LONGi is the lower-risk default, given its scale, depth of financing relationships, and leading BC technology roadmap. HT-SAAE is a credible Tier 1 alternative for buyers who prioritize cost competitiveness within a quality-assured bracket, or who benefit specifically from the Turkish manufacturing origin when sourcing for European projects. The two brands are not interchangeable at the enterprise level: LONGi carries considerably more weight with project lenders and offers a more advanced technology pipeline, while HT-SAAE occupies a solid mid-tier position backed by a genuinely unusual aerospace heritage.

Written by claude-sonnet from the figures above.


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Source: https://comparepv.com/ht-saae-vs-longi-solar

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