LONGi solar

A World leading mono-crystalline solar module manufacturer offering the best LCOE (levelized cost of electricity) solutions.


LONGi Solar is a world leading manufacturer of high-efficiency mono-crystalline solar cells and modules. LONGi Solar has been focusing on MONO for 18 years and is the largest supplier of mono-crystalline silicon wafers in the world, with total assets above $5.23 billion (2017). It also plans to have 45 GW of monocrystalline wafer production capacity by the year 2020.

Armed and powered by advanced technology and long-standing experience in the field of mono-crystalline silicon, LONGi Solar shipped approximately 4.5GW products in 2017, with a growth rate over 100% in three consecutive years. The Company has its headquarters in Xi’an and branches in Japan, Europe, North America, India, Malaysia, Australia and Africa.

With strong focus on R&D, production and sales & marketing of mono-crystalline silicon products, LONGi Solar is committed to providing the best LCOE solutions as well as promoting the worldwide adoption of mono-crystalline technology.


  • Established in : 2000 Year
  • Total Assets: $5.23 Billion
  • Revenues : $2.60 Billion
  • Headquarters : Xi’an, Shaanxi, China
  • Shipment  Scale : 4.5 GW
  • Current Capacity : Cell5.5GW Moudle6.5GW
  • Business: R&D,production and sales & marketing of mono-crystalline silicon products.
Brand Mission

Utilizing Solar Energy, Powering into Green World!
We are dedicated to maintaining our leadership in the manufacture of mono-crystalline silicon products, delivering higher efficiency to the global photovoltaic industry.
We are the loyal partner of the photovoltaic industry, creating greater value for the customers’ investment.
We are devoted to driving the development of the photovoltaic industry, powering into a green world for future generations.

Brand Strategy

Relying on LONGi Solar’s strong financial health, LONGi Solar will continue to invest more in technology R&D and low-LCOE solutions, leading to Win-Win, together with customers.

  • 1 st


    Taking the lead in setting the industry standards of M1, M2, Mono wafer

  • 23.6 %


    Efficiency of P-type PERC reaches 23.6%, setting a new world record

  • 30 Y


    30-year Reliability

  • 20.41 %


    Efficiency of P-type PERC module reaches 20.41%, setting a new world record

Milestone of LONGi Solar


Xi’an LONGi Silicon Materials Corps was established


LONGi’s wholly owned subsidiary - Ningxia
LONGi completed a silicon ingot facility with annual capacity of 1000 tons


Completion of a 350MW silicon slicing plant


LONGi’s successful IPO on the Shanghai Stock Exchange, China


Wafer shipment exceeded 2GW
Acquisition of LERRI Solar


Production capacity by the end of 2016:
ingot 7.5GW, Wafer 7.5GW, Cell 2.5GW, Module 5GW


Ingot 15GW
Wafer 15GW
Cell 5.5GW
Module 6.5GW

to be continued


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