Yingli Green Energy Holding Company Limited, through its subsidiary, Tianwei Yingli New Energy Resources Co., Ltd., engages in the design, manufacture and sale of PV modules.
The company also designs, assembles, sells and installs PV systems that are connected to an electricity transmission grid or those that operate on a stand-alone basis. The company’s end-products include PV modules and PV systems in different sizes and power outputs. It sells PV modules under its own brand name, Yingli, to PV system integrators and distributors located in various markets worldwide, including Germany, Spain, China and the United States.
The company sells PV modules to PV system integrators and distributors located in various markets worldwide, including Germany, Spain, China and the United States. It also sells PV systems primarily to customers in China.
Products and Services
The company’s products and services include the manufacture of polysilicon ingots and wafers, PV cells, PV modules and integrated PV systems.
Polysilicon Ingots and Blocks: A polysilicon ingot is formed by melting, purifying and solidifying polysilicon feedstock into a brick-shaped ingot. Most of the company’s ingots weigh up to 260 kilograms and reach the size of 690 millimeters x 690 millimeters x 240 millimeters. The polysilicon ingots are then cut into blocks. Its polysilicon blocks are available in two different sizes: 125 millimeters x 125 millimeters x 240 millimeters and 156 millimeters x 156 millimeters x 240 millimeters. It uses polysilicon blocks to produce polysilicon wafers.
Polysilicon Wafers: The company’s wafers are available in two sizes: 125 millimeters x 125 millimeters and 156 millimeters x 156 millimeters. It provides the excess wafers to third-party toll manufacturers which process wafers to PV cell and return the PV cells to the company.
PV Cells: A PV cell is a device made from a polysilicon wafer that converts sunlight into electricity by a process known as the photovoltaic effect. It uses all of its PV cells in the production of PV modules.
PV Modules: A PV module is an assembly of PV cells that are electrically interconnected, laminated and framed in a durable and weatherproof package. Most of its PV modules are made with PV cells produced by the company or by third-party PV cell manufacturers under toll manufacturing arrangements using polysilicon wafers produced by the company.
Integrated PV Systems
A PV system consists of one or more PV modules that are physically mounted and electrically interconnected with system components such as batteries and power electronics, to produce and store electricity. The company produces PV systems and also designs, assembles, sells and installs stand-alone PV systems for lighting systems, mobile communication base stations and residential applications. For larger PV systems, the company works with the customers on-site to design, install, test and oversee the system start-up.
Sales and Marketing
The company’s major international markets for PV modules include Germany, Spain and the United States. It targets sales and marketing efforts at companies in selected industry sectors, including telecommunications, public utilities and transportation.
The company competes with the solar energy divisions of conglomerates, such as BP Solar and Sharp Corporation, PV module manufacturers, such as Sunpower Corp. and Suntech Power Holdings Co., Ltd., and integrated PV product manufacturers, such as SolarWorld AG and Renewable Energy Corporation.
Yingli Green Energy Holding Company Limited was founded in 1998.