As co-regulator of the Gas industry (in partnership with Government), it’s our responsibility to help facilitate a safe, efficient, reliable, fair and sustainable gas market.
Data plays a central role in our ability to monitor current gas market conditions. We collect information about the gas industry and display it as a resource for both industry and consumers, and use it to guide our extensive ongoing work programmes schedule.
Tracking market performance
Switching metrics are is a key data set for us. The ability of consumers to ‘switch’ gas retailers is crucial - enabling consumers to choose, and alternate, efficiently between competing retailers is indicative of a healthy marketplace. The chart below shows the number of consumers per month that switched between retailers since 2010.
The information in these charts is sourced from the gas registry and shows statistics on retailer switching and retailer, distributor and meter owner market shares.
An Installation Control Point, or ICP, is a physical point of connection between a gas network and a consumer’s installation. Each ICP has an individual ICP number in the Gas Registry.
Historical registry data and switching statistics can be downloaded here.
Length of time for switch completion
Tracking network performance
Tracking retailer performance
Retail market share of active ICPs
These graphs show the number of Active ICPs for each retailer over time. Note that historical Trustpower ICPs are shown as part of Mercury.
- Large retailers are defined here as having a peak of over 15,000 ICPs.
- Medium retailers have a peak of between 1,000 and 15,000 ICPs.
- Small retailers have a peak below 1,000 ICPs.