Tanzania cuts power production after drought hits hydro plants

DAR ES SALAAM (Reuters) - Tanzania has cut its power generation by up to 250 megawatts, resulting in electricity rationing, after water levels in its hydro dams dropped following a drought, the energy ministry said on Wednesday.     Businesses say frequent power outages are hurting productivity and are a barrier to growth in East Africa's No. 2 economy.     "We initially had a deficit of around 450 megawatts, but have reduced it to between 200 and 250 megawatts afte