Renewable energy is becoming a mainstream source of energy, and power electronics is a key enabler of its successful integration. PROXY addresses the issue of « Secure, Clean and Efficient Energy » via the adoption of a new and environmentally friendly power electronics technology for higher efficiency-low carbon energy conversion based on the emerging, cost effective and earth abundant element based wide bandgap semiconductor, Ga2O3. PROXY proposes to develop significantly further than the state-of-the-art power electronic devices based on Ga2O3 in the context of H2020 for the first time; so that Europe can become an actor in this new/hot topic pioneered up till now by groups in Japan and the US. PROXY proposes lower cost, a higher degree of integration with current renewable technologies and the opening of new market opportunities compared to current power electronics technologies. PROXY will establish the first commercial 3 inch ß-Ga2O3 epi-wafer supply for 3.3kV/50A rectifiers and normally-off vertical field-effect transistors by addressing p-type doping issue in order to realize bipolar devices for application. PROXY also proposes to develop unipolar devices based on a novel lift off of heteroepiaxial Ga2O3 layers from insulating growth substrates and transfer to thermally conductive supports which will enable higher power/efficiency operation and longer lifetime. Our novel recycling method developed in the project, will contribute to the knowledge of recovery technology of gallium from of End –of- Life products. Our complete cycle technology (from green design to recovery) will contribute into the challenge of renewable energy, and circular economy conception. The consortium will be interdisciplinary and intersectoral, and will associate a not for profit company specialized in developing synergies and partnership to deliver low carbon solutions, with experience working on environmental technology exhibitions. In order to measure the possible impact of this new technology on our everyday life we will collaborate within the project (as subcontractor) with Yole Development. Yole will give us an overview of power electronic markets worldwide and social benefits related to a new generation of energy devices. The project will allow the proposed technology to achieve TRL4. The time for PROXY is now as it represents a viable route for bringing power devices based on a new emerging WBG material into the market with impacts in the de-carbonization strategic actions following the COP21 directives. The PROXY consortium submitted last year a proposal to a very similar call which obtained a good evaluation on the scientific part. We believe the MRSEI support would allow us to enlarge the consortium and improve our proposal significantly in order to get a better evaluation, especially on the Impact part.