FLEXIS (Flexible Integrated Energy Systems) is a £24 million research operation designed to develop an energy systems research capability in Wales which will build on the world class capability that already exists in Welsh universities. The project integrates social science and technical research to address issues concerning the energy system of the future. The scope of the project encompasses energy storage, distribution and demand technologies (e.g. including smart grid management and domestic/industrial consumption management). It features a number of work packages looking at specific technical innovations in these areas and how they need to relate to each other as part of an energy system in Wales and the UK that can incorporate an increasingly renewables-led generation strategy. FLEXIS seeks to address the three axes of the energy trilemma (sustainability, security and affordability) and is specifically focused on Wales. One of the flagship plans involves using hydrogen generated from excess electricity to fuel vehicles from Neath Port Talbot’s new £7m Swansea Bay Technology Centre in Baglan Bay Energy Park. FLEXIS is funded by the Welsh European Funding Office (WEFO).