Mr Williams, who is the leader of the local Plaid Cymru Group, a member of Pembrokeshire's National Park Authority and Chairman of its Development Management Committee, has suggested that the local authority should actively pursue a policy of compulsory purchasing second homes, claiming "this crisis needs that sort of action".
The Tennessee Valley Authority said it is bringing online 1, 200 megawatts of nuclear power, purchasing 27 megawatts of wind power and updating hydro generating facilities.