Rangitata Diversion Race Reliability Modeling MSCI Hons 2010

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Overview

Background

Data Analysis

Model

Results

Acknowledgements

About the Authors

Data Analysis

A large part of this project was the data analysis performed. Data was supplied from many different sources. Table 1 shows the data used and the sources. The generation data, which dated from 2000 limited the modelled time period.

Table 1: Data sources and descriptions

Type

Source

Description

Irrigation offtakes (m3/day)

TrustPower

Scheme offtakes, 1980 2010.

Rainfall data (ml/day)

NIWA

Rainfall at 13 scheme locations, 1980 2010.

Highbank information (m3/day)

TrustPower

Highbank generation flows, 1980 2010 and flow generation relationships.

Generation prices ($/MWh)

TrustPower

Ashburton node spot prices, 1999 2010.

River flows (m3/day)

ECan

Flows for Rangitata and South Ashburton Rivers, 1970 2010.

Irrigation shortfall cost ($/ha)

TrustPower

Irrigation deficit costs.

 

Due to the confidential nature of the data and results, no actual analysis can be displayed here. A brief description of what was undertaken is below.

         Estimation of scheme demands.

         Calculation of current irrigation reliability.

         Calculation of maximum irrigation reliability.

         Cost of irrigation shortfall calculation.

 

This analysis was used to help build, or as part of the Model we developed.

 

Owen Warburton and Chris Blackmore, University of Canterbury Management Department 2010