Load Forecasting

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Transpower as system operator prepares a forecast of demand at conforming grid exit points (GXPs) for each trading period. This information is a key input into the market schedules; in particular, the Week-ahead Dispatch Schedule (WDS), the Non-Response Schedule (NRS) and the Price-Responsive Schedule (PRS).

Load Forecast Methodology

The process and methodology we use to prepare the demand forecast is made available to the Electricity Authority and to the public.

The Load Forecast and Methodology document provides an overview to assist with preparing the demand forecast:

GL-SD-204 Load Forecast Methodology and Processes [ pdf 1014.22 KB ]

Accuracy Reports

From time to time, the Electricity Authority may ask the Transpower to provide a report on the accuracy of the demand forecast. These reports are now available here.