Base Power has rapidly evolved from a stealth startup to a leading battery fleet operator in Texas, securing $200 million in Series B funding. The round was led by prominent investors including Andreessen Horowitz and Lightspeed Venture Partners. The funds will facilitate the construction of a domestic battery factory and accelerate the installation of massive residential batteries, which offer competitive pricing compared to existing options like Tesla's Powerwall. As the company plans to expand its operations, it aims to reach 100 megawatt-hours of storage by summer.