Vale of Clwyd-based Hafod Renewables has taken on a new team to cover Gwynedd and Ceredigion. : An expanding Denbighshire green energy company is heading west as soaring energy prices boost interest in renewables. Vale of Clwyd-based Hafod Renewables has taken on a new team to cover Gwynedd and Ceredigion and is looking at opportunities for opening a new branch in the area. The building boom coupled with expected hikes of more than £100 a year in energy prices is fuelling interest in a range of renewable options, especially solar and air-source systems.