Disclaimer

The reports below are provided for participants’ information to support the publication of the Initial Statement of Opportunities (Initial SOO).  Any views represented in the reports set out below do not necessarily represent the view of the Electricity Commission (Commission).

This supporting information has been compiled by the Commission’s advisers for the purpose of carrying out the Commission’s functions under the Electricity Governance Rules 2003 and the Electricity Act 1992.

This supporting information has been compiled by the Commission’s advisers from raw data which has been translated and published in a usable form to enable users of the information to benefit from it.

The translation of the raw data may have introduced errors into the information.  Although care has been taken in translating and publishing the information, some errors are inevitable.  The Commission and its advisers accept no liability for any loss that may result from reliance on the information.

• Power Systems Analysis for Statement of Opportunities, Horizon 2005 to 2025 - System Studies Group NZ Limited

This report describes the power systems analysis undertaken for the Initial SOO by SSG.  This was a preliminary load flow analysis of the New Zealand power system covering a 20-year horizon from 2005-2025 for each of the five generation scenarios considered in the Initial SOO.  The analysis examined the capability of the power system to supply the forecast winter peak.  The analysis at this stage is necessarily limited and based on assumptions, some of which require further investigation. Other factors not considered in this initial analysis include dry-year impacts, summer-peak impacts, the feasibility of a number of the investment options identified, and risks in system operation.  Due to the compressed timeframe for the production of this Initial SOO the analysis was of an indicative nature and made no attempt to optimise the development of the transmission system.  The analysis considered the main transmission network and ignored the need for augmentations on spur networks or supply transformers.

• NZ Electricity Outlook.  Statement of Opportunity Modelling Report - EnergyLink
• Hydro-Electric Potential in New Zealand.  A Hydro-Electric Resource Database  - Parsons Brinkerhoff Associates
• Thermal and Geothermal Generation Plant Capabilities  - Parsons Brinkerhoff Associates
• New Zealand Future Gas Scenarios to 2030  - Power Projects Limited
• New Zealand Future Gas Supply to 2015  - Power Projects Limited  
• Generator Spectra Update – Issue 4  - Opus International Consultants Limited 
• Waters of National Importance – Identification of Potential Hydroelectric Resources  - Ministry of Economic Development 
• Availabilities and Costs of Renewable Sources of Energy for Generating Electricity and Heat - Ministry of Economic Development
• Demand forecasts 
• The Commission’s consultation papers and explanatory documents prepared as part of the processes to develop the GIT and GRS; and
• System Security Forecast (SSF) Transpower New Zealand Ltd as system operator
• Power systems analysis - PSS/E data files
• Tables and figures (final - July 2005) [application/vnd.ms-excel, 463KB] amended 15 Aug 05
• Tables and figures (draft for consultation - May 2005) [application/vnd.ms-excel, 461KB]