Founded in 2000, Longi Solar is a Chinese Company and manufacture of Tier 1 solar panels. They only produce mono-crystalline panels and are the largest mono-crystalline solar panel manufacturer worldwide. As Longi produces silicon ingots, wafers, solar cells and solar panels, they are considered a vertically integrated company. Longi mono-crystalline module efficiencies are extremely high and reliable, they have proven to have a cell efficiency rate of 21%.
Engineered in Germany
Hanwha Q CELLS, formerly known as Q-CELLS is a manufacturer of PV solar cells with headquarters in Seoul, South Korea. The company develops and produces crystalline silicon photovoltaic cells, panels, and silicon ingots and wafers. It has production facilities in China, Malaysia and South Korea. Q- CELLS was originally founded in 1999 in Thalheim, Germany. Q-CELLS Q.antum technology has proven to be a great success in Poly-crystalline solar panels reaching efficiencies of 17%