Researchers at the Birmingham Energy Institute are working with the C-EPRI Electric Power Engineering Ltd (C-EPRI), to build an industrial-scale prototype of a next-generation HVDC technology that could pave the way for a global electricity grid, based on renewable energy.Researchers at the Birmingham Energy Institute are working with the C-EPRI Electric Power Engineering Ltd (C-EPRI), to build an industrial-scale prototype of a next-generation HVDC technology that could pave the way for a global electricity grid, based on renewable energy.