Average electricity consumption per household in New Zealand
2013 Q2–2024 Q1, kWh per quarter
Quarter | kWh per household |
---|---|
2013 Q2 | 1,824.440201105 |
2013 Q3 | 2,365.223843945 |
2013 Q4 | 1,698.487714029 |
2014 Q1 | 1,493.441059822 |
2014 Q2 | 1,855.379014045 |
2014 Q3 | 2,281.665251493 |
2014 Q4 | 1,721.301700919 |
2015 Q1 | 1,421.8010743 |
2015 Q2 | 1,826.326148302 |
2015 Q3 | 2,373.707888741 |
2015 Q4 | 1,663.69195406 |
2016 Q1 | 1,398.640311645 |
2016 Q2 | 1,730.511858722 |
2016 Q3 | 2,261.292427531 |
2016 Q4 | 1,622.893828671 |
2017 Q1 | 1,433.043394751 |
2017 Q2 | 1,818.699220524 |
2017 Q3 | 2,258.350655833 |
2017 Q4 | 1,570.127150736 |
2018 Q1 | 1,373.082327258 |
2018 Q2 | 1,829.825082201 |
2018 Q3 | 2,277.5313907 |
2018 Q4 | 1,670.146649261 |
2019 Q1 | 1,364.283354341 |
2019 Q2 | 1,742.726392483 |
2019 Q3 | 2,317.299761641 |
2019 Q4 | 1,638.258853771 |
2020 Q1 | 1,396.019849876 |
2020 Q2 | 1,881.298482244 |
2020 Q3 | 2,305.931928478 |
2020 Q4 | 1,631.050538788 |
2021 Q1 | 1,404.794656727 |
2021 Q2 | 1,798.785825234 |
2021 Q3 | 2,385.951035781 |
2021 Q4 | 1,654.052384581 |
2022 Q1 | 1,422.268956844 |
2022 Q2 | 1,736.392675998 |
2022 Q3 | 2,284.416017368 |
2022 Q4 | 1,607.879333104 |
2023 Q1 | 1,403.954287745 |
2023 Q2 | 1,775.165196834 |
2023 Q3 | 2,287.734051006 |
2023 Q4 | 1,619.663136234 |
2024 Q1 | 1,410.598015429 |
Notes
The quarterly average cost paid varies throughout the year with household electricity consumption. This is largely because of fixed daily charges. When households use more units of electricity (e.g. in winter), the fixed cost is spread across a larger number of units. Because of this, the average cost paid is highest in summer and lowest in winter. Due to these fluctuations, comparisons for the sales-based cost indicators are made for the same quarter of the previous year.
Limitations of the data
Changes in the quarterly cost per unit data should be interpreted with care, because:
- the cost per unit of electricity used increases as average electricity demand decreases (and vice versa). This is because some parts of customers’ electricity bills are fixed daily costs.
- if demand in a given period is lower, then the average cost per unit used is higher because the fixed costs are spread across fewer units.
Inclusions
Costs and expenditure figures include GST.
Exclusions
Costs do not include any ownership-based discounts or distributions from consumer trusts. If these discounts and distributions were included, the costs would be lower.
Changes to data collection/processing
The Ministry has made the following improvements to the sales-based electricity price cost data in July 2014:
- greater consistency of information between retailers. The Ministry now provides more detailed guidance for retailers on what the sales data should and should not include. In particular, the treatment of discounts is expected to be clearer and more consistent between retailers.
- residential costs back to the year ended March 2009 have been revised based on consistent information provided by all electricity retailers. Some retailers have also provided revised data back to the year ended March 2002. This has been incorporated into the residential electricity cost data.
- collecting data more frequently (quarterly, rather than annually) to improve the quality and consistency of information.
- average household electricity expenditure and average electricity demand per household have been added.
Data provided by
Ministry of Business, Innovation, and Employment
Dataset name
Sales-based Electricity Costs: June 2024
Webpage:
How to find the data
At URL provided, select 'Sales-based electricity costs for residential' (Excel file).
Import & extraction details
File as imported: Sales-based Electricity Costs: June 2024
From the dataset Sales-based Electricity Costs: June 2024, this data was extracted:
- Sheet: Quarterly Residential Elec Cost
- Range:
B15:F58
- Provided: 220 data points
This data forms the table Energy - Quarterly residential sales-based electricity cost 2013 Q2–2024 Q1.
About this dataset
The Ministry monitors national residential electricity costs using information about national electricity sales (essentially total electricity sales divided by the quantity of electricity supplied in kWh).
Method of collection/Data provider
Residential cost data is derived from information obtained primarily from electricity retailers. The Ministry collects the total value of sales, the total volume of electricity sold, and the number of connections.
The residential electricity cost per unit is derived by dividing the dollar value of residential electricity sales by the number of kilowatt-hours (kWh) sold to residential customers.
Cost data reflects any prompt payment discounts actually claimed by customers, as well as multi-fuel and online discounts, incentive and retention payments received, and rates paid by customers on fixed-term plans.
The cost data is based on sales of delivered energy.
The survey also reports the “lines” component of the residential costs. This covers both the distribution and transmission components of the residential costs.
Electricity sales information is collected from electricity retailers on the MBIE Quarterly Retail Sales Survey (Electricity and Gas) return.