BYD, short for Build Your Dreams, is a Chinese multinational manufacturer of electric vehicles, batteries, and renewable energy products. Founded in 1995 and headquartered in Shenzhen, the company began as a rechargeable battery producer before expanding into the automotive sector. BYD is now one of the largest electric vehicle makers globally, producing passenger cars, buses, and trucks, as well as energy storage systems and solar panels. It plays a key role in China's push toward clean energy and sustainable transportation.