Lake Taupo storage jumps to six-month high

Storage in Lake Taupo has jumped to a six-month high, adding to the recovery in South Island hydro-generation supplies the past month.Lake Taupo, which supplies the nine power stations Mercury NZ operates on the Waikato River, has been below average since February. A week ago, the company trimmed $10 million from its June-year earnings guidance on the back of persistent low inflows.Heavy rain across the central North Island the past week has lifted the lake to levels not seen since mid-March. Mercury’s dams usually account for about two-t...