Energy-using products and services

Research papers and resources covering energy-using products and services. Documents are ordered by publication date, with the most recent listed first.

Life Cycle Assessment of Indoor Residential Lighting

June 2020

Lighting accounts for around 10% of electricity usage in households. When looking to reduce the energy consumption of the home, Light Emitting Diode (LED) lamps are the most efficient. However, energy is used throughout a product's life, from raw material acquisition to waste management.

Life Cycle Assessment evaluates the potential environmental impacts over the complete life cycle of a product. This study covered incandescent lamps, compact fluorescent lamps (CFLs) and LEDs for indoor residential lighting in Australia and New Zealand.

It found incandescent lamps generate 3.3 times more CO2 emissions than CFLs and LEDs in New Zealand. LEDs with high efficacy are the best choice for New Zealand homes as they have the least environmental impacts and the lowest energy consumption over a complete life cycle.

Read the report below.

Systems thinking - a new approach to MEPS

April 2020

A recent review of the regulatory system underpinning our Minimum Energy Performance Standards (MEPS) programme recommended investigating a systems-approach to MEPS.

Traditionally, MEPS require products to meet specified minimum energy performance criteria when tested under standardised conditions. A systems approach may enable EECA to expand the MEPS programme beyond residential products and provide greater emissions savings.

See the first phase of our investigation into a systems approach to MEPS below.

Sales and efficiency data


Spreadsheets and graphs showing total sales and efficiency data for a variety of products and appliances sold in New Zealand.

 Sales and efficiency data

The heat pump success story

July 2014

Heat pumps are an extremely popular form of home heating, because they are convenient, effective, reliable and energy efficient. What’s less well-known is the part that the Energy Efficiency and Conservation Authority (EECA) has played behind the scenes in making sure heat pumps have performed well for New Zealanders.

Good practice guide: heat pump installation

May 2013

Good design and installation are fundamental to a heat pump system’s effectiveness and efficiency. This guide provides good practice guidelines for designing and installing the most common type of residential heat pump system – air-to-air single-split heat pump systems (also known as reverse-cycle air conditioners), used primarily for heating. The guide is aimed at experienced installers of heat pumps, and it gives the process to follow for system design and installation into both new and existing homes.