STEP Fusion is a world-leading UK programme advancing fusion energy towards commercial deployment. Its mission is to demonstrate net energy, fuel self-sufficiency, and electricity generation from fusion, while helping to grow a new fusion industry. The programme will deliver a prototype spherical tokamak power plant and is led by UK Fusion Energy Ltd, a wholly owned subsidiary of the UK Atomic Energy Authority (UKAEA) Group.

UK Fusion Energy Ltd (UKFE) is responsible for delivering the UK's flagship fusion programme, STEP (Spherical Tokamak for Energy Production). The organisation is leading the design and development of the UK's first prototype fusion energy plant at West Burton in Nottinghamshire, targeting first operations in the 2040s. Working with industry and research partners, UKFE is building a public-private alliance to scale commercial fusion energy and support long-term energy security.