Energy - Quarterly domestic electricity prices by town or city Feb 2004–May 2021

Ministry of Business, Innovation, and Employment

Data calculation/treatment

Retail price = Lines Component + Energy and Other Component
Energy and other component is found by subtracting lines charges from total retail charges.
Lines Charges = Transmission Component + Distribution Component

For more information

Limitations of the data

This dataset provides a handy indicator of how recent price increases are likely to impact on consumers. However, it does not reflect what customers have actually paid for electricity in any particular period, as the QSDEP only models one type of customer in each city or town, when in reality, Consumption and pricing plans vary significantly across households.


Lines prices cover both distribution and transmission services combined.


Prices assume that prompt payment discounts are claimed. They do not include multi-fuel and online discounts, incentive or retention payments, or rates paid by customers on fixed-term plans.
Prices do not include any ownership-based discounts and distributions from consumer trusts. If these discounts and distributions were included, the prices would be lower.

Data provided by

Ministry of Business, Innovation, and Employment

Dataset name

Quarterly Survey of Domestic Electricity Prices: Report 15 May 2021


How to find the data

At URL provided, find the link to the Excel spreadsheet under the 'Quarterly Survey of Domestic Electricity Prices (QSDEP)' heading,

Import & extraction details

File as imported: Quarterly Survey of Domestic Electricity Prices: Report 15 May 2021

From the dataset Quarterly Survey of Domestic Electricity Prices: Report 15 May 2021, this data was extracted:

  • Sheet: RawData
  • Range: B2:BS134
  • Provided: 9,030 data points

Dataset originally released on:

June 10, 2021

About this dataset

The QSDEP is a price indicator series that complements sales-based electricity cost data. The QSDEP indicator is a measure of how the published residential electricity tariffs have changed over time.

Method of collection/Data provider

A limited selection of publicly advertised retail tariffs are surveyed for around 40 towns and cities across New Zealand.
Prices are surveyed as a snapshot at the mid-point of each quarter (15 February, 15 May, 15 August and 15 November each year).
The average prices are quoted for a modelled consumer using around 22 kWh per day (8000 kWh of electricity per year).
An average regional price across all retailers is published, weighted by market share.