For years, investors have argued over a simple question: Is Tesla just a car company? $Tesla Motors(TSLA)$ On March 12, the market received another clear signal that the answer is increasingly no. Britain’s energy regulator, Ofgem, granted an electricity supply license to a subsidiary of Tesla, allowing the company to sell electricity directly to households and businesses across England, Scotland, and Wales. According to reporting by Reuters and other financial media, the license enables Tesla to compete directly with established suppliers in one of Europe’s largest power markets. At first glance, this might sound surprising—a company known for electric vehicles entering the electricity retail business. But if you look at Elon Musk’s long-term str