Solar panel manufacturing process

As the world’s one of the largest solar (photovoltaic) panel manufacturer, TGP Solar is committed to delivering the highest quality solar panels to our customers around the world. We have more than 15 years of solar manufacturingexperience and three advanced R&D facilities in the United States, Spain and China.

Our solar panel manufacturing processes utilize the best quality components available and industry-leading equipment from around the world, including Europe, the United States, Taiwan and Japan. We stand behind our promise of quality workmanship in all of our solar products.

Our world-class solar panel production facilities, located in India and entire world, are supported by an expansive global supply chain that draws on resources and partnerships with a diverse range of global companies.

Turnkey Package includes

• Consulting for Building requirements
• Facilities (requirements)
• Production tools
• Production support tools
• Solar module design and technology
• Manufacturing technology
• Process / production control
• Documentation, staff training and support
• Module Certification (IEC 61215 (c-Si), IEC 61730 (safety), UL 1703)

Manufacturing Process:

First, silicon raw material is melted and re-cast to remove impurities. The cast silicon is then stabilized in its multi crystalline form. These castings, called “ingots,” are then cut into blocks.

Next, the ingots are sliced into wafers. Depending on the type of silicon used, p-type or n-type silicon wafers may be produced.

After layering the p-type or n-type wafers, the material is capable of generating electricity from sunlight. Electrodes are attached to the wafers to conduct the flow of electricity. This is called a photovoltaic cell, or “solar cell.”

Although a single cell can generate small amounts of electricity, connecting many cells in a series will increase the voltage to an optimum level.

Tempered glass and sealants are assembled around the cells to protect them against the elements. The finished product is now called a photovoltaic module, or “solar module.”

Vertical Integration

We are the world’s largest manufacturer of silicon solar panels from sand to sun. That means we oversee the entire manufacturing process, from poly silicon to wafers and from solar cell production to solar panel assembly. Fully automated production of ingots, wafers, solar cells and panels ensures tight control of our materials and production quality.

Benefits of vertical integration include:

• Strict quality control measures at all stages of the manufacturing process
• Elimination of redundancies
• Reduced carbon emissions
• Continuous process and cost optimization along the PV value chain

Solar Panel Recycling

TGP Solar panels are well within regulatory requirements for toxicity based on Toxicity Characteristic Leaching Procedure (TCLP) testing and are not considered hazardous waste. It is also possible to recycle our solar panels; we currently work with PV CYCLE to manage the return and recycling of solar panels. We are committed to recycling retired solar panels.

For more information on solar module manufacturing process visit www.tgpsolar.com.