PowerHouse Energy Group plc ( LON:PHE ) has announced that chief executive Keith Allaun has resigned with immediate effect amid "extenuating personal circumstances". "The increase and upgrading to our management team this past year have been of significant benefit which led to the completion of our commercial design, our statement of feasibility by DNV-GL, and the progress in finalising planning and permitting," Allaun said in a statement. READ: PowerHouse Energy clarifies intellectual property position "It's become clear more recently that we require a seasoned commercial and professional manager at the helm of the company."