AMPEAK ENERGY LIMITED engages in developing, building, owning, and operating energy projects in the United Kingdom. The company operates through four segments: Battery Storage, Project Development, Power Generation, and Corporate. It is involved in the tidal power generation; providing project management, consulting, and financial services; and offers battery energy storage special purpose vehicle. The company was formerly known as SIMEC Atlantis Energy Limited and changed its name to AMPEAK ENERGY LIMITED in August 2025. AMPEAK ENERGY LIMITED was incorporated in 2005 and is based in Edinburgh, the United Kingdom.