2,500 houses in Knaresborough without power kna Knaresborough aerial. King James's School. 091109M2z. Around 2,500 homes in Knaresborough are without power this afternoon after a voltage fault. Homes in the HG5 postcode are affected and Northernpowergrid say it hopes to have restored power by 6.15pm. Langthorpe development "recommended for approval"