Mateo Jaramillo is an American entrepreneur and business executive known for his pioneering work in the energy storage industry. He is the co-founder and Chief Executive Officer of Form Energy, a company developing breakthrough long-duration energy storage technology designed to enable a fully renewable electric grid. Born in Salinas, California, an agricultural hub, Jaramillo developed an interest in energy systems early in his career. He pursued his higher education on the East Coast, earning an A.B. in Economics from Harvard University. He later expanded his academic focus by obtaining a Master’s degree in Theology from the Yale Divinity School. This combination of economic and theological study has been noted in various profiles as providing him with a unique perspective on the long-term societal challenges and the moral imperative of addressing climate change through sustainable energy. Jaramillo’s professional trajectory began in the software industry, where he worked as a product manager for Predictive Networks, an interactive television software provider. However, he soon shifted his focus toward the energy sector. He became a part of the founding team at Gaia Power Technologies, a distributed energy storage firm, where he served as Chief Operating Officer. This experience in the early days of distributed storage provided the foundational expertise he would later apply to larger-scale projects. In 2009, Jaramillo joined Tesla, which at the time was a significantly smaller company with approximately 300 employees. He was hired as the Director of Powertrain Business Development, serving as a commercial lead on high-value contracts for electric powertrain sales. Beyond his work in the automotive segment, Jaramillo is credited with initiating Tesla’s stationary energy storage efforts—a "skunkworks" project that would eventually evolve into Tesla Energy. During his tenure, which lasted until 2016, he rose to the role of Vice President of Products and Programs for Tesla Energy. In this capacity, he oversaw the development, product definition, and business model creation for the Powerwall and Powerpack, products that became integral to Tesla’s mission of accelerating the world's transition to sustainable energy. After leaving Tesla, Jaramillo co-founded Form Energy in 2017. The company was established with the specific mission of creating low-cost, long-duration energy storage capable of discharging for multiple days—a significant technological leap beyond the shorter-duration capacity typical of lithium-ion batteries. Under Jaramillo’s leadership, Form Energy has focused on developing iron-air battery technology. In 2023, the company broke ground on a commercial-scale manufacturing facility in Weirton, West Virginia, on the site of a former steel mill, signaling a commitment to domestic manufacturing and the rejuvenation of industrial zones for the clean energy economy. Jaramillo is a prominent voice in the clean energy transition, frequently advocating for the necessity of long-duration storage to balance the variability of wind and solar power. He serves on the Board of Directors of the American Clean Power Association. His work has garnered recognition across the energy and technology sectors, positioning him as a key figure in the development of grid-scale storage solutions essential for a decarbonized global economy.