Introduction

In 2005 the Commission commissioned a study to assess the electric energy-efficiency potential in New Zealand’s residential, commercial and industrial sectors. The goals of the study were to determine levels of electricity efficiency available in the New Zealand economy and to estimate the cost effectiveness of programmes to achieve these potentials.

The study used a “bottom-up” approach to estimating potential in which the energy impacts of “standard efficiency” technologies were compared to those of high efficiency equipment across different market sectors and building types.

The report findings represent a critical step in the process of understanding the potential of electricity efficiency in New Zealand in which there appears to be significant untapped achievable and cost-effective potential savings for electricity in all sectors.

The Commission will continue to maintain the model. In particular, it will work to confirm some assumptions made in the initial studies, fill in data gaps, and update technology and cost information.

Reports from Potentials Study

• One page summary of the potentials study pdf [11 KB]
  
• Volume 1 - Main report pdf [674 KB]
  
• Volume 2 - Technical appendices pdf [1035 KB]
  
• Some of the technical appendices are also available in excel format: 
• Appendix E xls [1059 KB]
  
• Appendix F xls [737 KB]
  
• Appendix G xls [128 KB]
• Appendix H xls [254 KB]
  

Presentations

A series of briefings on the results and implications of the Commission’s electricity efficiency potentials study was held in Auckland, Wellington and Christchurch in April 2008.

• Electricity Efficiency Potentials Study presentation pdf [324 KB]

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