Quarter ended	Cost index	CPI electricity component	MBIE QSDEP
30/09/2010	100.00	100.00	100.00
31/12/2010	103.47	101.68	102.63
31/03/2011	105.38	102.08	102.91
30/06/2011	105.75	104.89	105.90
30/09/2011	106.88	104.57	102.76
31/12/2011	109.49	104.09	103.03
31/03/2012	113.28	104.17	103.13
30/06/2012	117.27	108.81	108.11
30/09/2012	118.98	109.21	108.41
31/12/2012	118.80	109.46	108.91
31/03/2013	121.98	109.62	109.05
30/06/2013	121.73	112.50	111.35
30/09/2013	121.11	113.14	111.84
31/12/2013	120.98	112.74	111.98
31/03/2014	122.88	112.82	112.10
30/06/2014	123.31	117.55	114.64
30/09/2014	122.86	117.31	114.69
31/12/2014	122.07	116.75	114.70
31/03/2015	124.52	116.83	114.66
30/06/2015	123.58	117.55	114.84
30/09/2015	123.14	117.47	115.20
31/12/2015	122.82	117.23	115.47
31/03/2016	122.40	117.47	115.43
30/06/2016	122.86	119.55	117.15
30/09/2016	121.68	120.11	117.76
31/12/2016	121.81	119.87	118.06
31/03/2017	123.72	120.03	117.89
30/06/2017	122.98	121.79	118.87
30/09/2017	123.59	122.04	118.98
31/12/2017	124.41	122.28	119.96
31/03/2018	126.32	123.26	120.62
30/06/2018	125.87	125.33	120.71

Permalink

Link to this view:

www.emi.ea.govt.nz/r/1pvtr

Download data

Permalink

Link to this view:

www.emi.ea.govt.nz/r/svvng

About this report

This report shows indexed residential price changes against the estimated indexed costs that retailers must meet to operate.

Report notes

All series are by default indexed to 2010 Q3 = 100. The base date parameter can be used to select an alternative period as the base.
The retail cost index was first estimated for the Authority by NZIER in 2014. The index is designed to represent the price at which a new entrant retailer without a generation portfolio could enter the market and sell to residential customers. In 2020, the Authority's market monitoring team made several modifications to the methodology and data sources used to derive the index. The original documentation supplied by NZIER detailing the construction of the index and its data sources and input assumptions, as well as the market monitoring team’s 2020 updates are described here.
The energy component of the retail cost index is based on the settlement price of ASX baseload quarterly futures contracts.
The MBIE QSDEP is the Quarterly Survey of Domestic Electricity Prices prepared by MBIE and is available at www.mbie.govt.nz/building-and-energy/energy-and-natural-resources/energy-statistics-and-modelling/energy-statistics/energy-prices/electricity-cost-and-price-monitoring.
The MBIE annual residential electricity cost is available as part of the quarterly residential sales survey (QRSS) prepared by MBIE and is available at www.mbie.govt.nz/building-and-energy/energy-and-natural-resources/energy-statistics-and-modelling/energy-statistics/energy-prices/electricity-cost-and-price-monitoring.. We’ve used the annual series, which is available when the base date is set to Q1, to avoid needing to adjust for volume differences between quarters.
The CPI electricity component is the contribution of electricity to changes in the quarterly Consumer Price Index published by Statistics New Zealand and is available at www.stats.govt.nz/indicators/consumers-price-index-cpi.

Report tags

Discussion tags

Check a term

Visit the glossary for a list of defined terms used on the website.

Have a question?

Visit the forum to see if the information you are looking for is already available or ask a question to see if some of our informed users or staff can help?

Clicking the blue discussion tags below the notes will take you directly to discussions on that topic.