EPC Power Corp. | 18,131 followers on LinkedIn. Excellence in Power Conversion | EPC Power creates innovative power conversion products that are stable, powerful and smaller than you ever thought possible. Our field of excellence is the development of globally competitive high power density electrical conversion systems with a power range of several kilowatts to 200 megawatts. Based in San Diego, EPC Power engineers and manufactures fully functional designs, prototypes, production hardware, and commercialized power electronics technology for use around the world.