SR141 Energy use in NZ households - report on year 9 of the Household Energy End-Use Project (HEEP) (2007)

This is the 9th annual report on the Household Energy End-use Project (HEEP). HEEP is a multi-year, multi-discipline, New Zealand study that is monitoring all fuel types (electricity, natural gas, LPG, solid fuel, oil and solar used for water heating) and the services they provide (space temperature, hot water, cooking, lights, appliances, etc). Data collection was completed in 2005, and the report is the first with full data from 400 randomly selected houses.

The report provides:

• an overview of the entire project and the monitored houses
• a review of the house selection methodology
• an examination of the importance of selected social factors on household energy use and temperatures
• a description of the development of the Household Energy Efficiency Resource Assessment (HEERA) model
• quantification of the space heating contribution of solid fuel burners
• descriptions of the patterns of home heating (including heating season and indoor temperatures)
• an evaluation of the performance of the ALF computer program
• the first national estimates of residential standby and baseload power demands
• a historical review of hot water provision in New Zealand homes and analysis of current hot water energy use, including wet-back supplementary water heating.