While the rest of the world focuses on Tesla’s robotaxis and Cybertrucks, Elon Musk is quietly building a power play — literally. Suggested Reading On Thursday, Tesla signed a roughly $557 million agreement with the Shanghai government to build its first large-scale energy storage station in China, marking a significant expansion of the company’s growing energy business. The facility will deploy Tesla’s Megapack batteries — giant lithium-ion units the size of shipping containers — to...