Hydro Lake Levels Decline

Hydro lake storage declined at a steady rate during October 2009.

New Zealand’s hydro storage lake levels stood at 2975 GigaWatt hours (GWh), 132% of average for the time of year, at the beginning of October 2009. Levels steadily declined during the month, dropping to 2690 GWh, 111% of average, by month’s end.

Inflows were below average on 30 days, briefly rising to 116% of average on the 5th of October.

South-to-north transfers via the Cook Strait cable exceeded southbound transfers on all 31 days. On 24 days, no southbound transfers were made.

Adjusting weekday for weekday, demand exceeded October last year on sixteen days. Peak demand of 114.9 GWh occurred on October 6th, exceeding the peak load day for October 2008 when 111.2 GWh was drawn. The average daily load for October was 102.3 GWh, just above the average daily load of 101.9 for October 2008.

[Compiled from data supplied by M-co.]

Leave a Reply