Average prices decreased by 15.2% at Benmore, decreased by 15% at Islington, decreased by 15.2% at Haywards and decreased by 13.2% at Otahuhu over the last week.  Total Storage increased to 2223 GWh. NI storage increased by 35% to 270 GWh while SI storage increased by 5% to 1953 GWh.