Electricity

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Data tables for electricity [257 KB XLS]

Welcome to the Electricity Information Portal. From here you can access all historical electricity information published by the Energy Information and Modelling Group. Information is available on New Zealand’s electricity supply, demand, and transmission and distribution, and links are provided to electricity price information.
 

Annual Online Summary

New Zealand Energy Data File 2011 - Section G. Electricity Summary

The following figures and text are a summary of the information presented in section 'G. Electricity' of the New Zealand Energy Data File 2011.

Basic electricity generation and consumption information is presented up to calendar year 2010. In the Energy Data File 2011, some information is still presented for years ending March 31, in which case it is clearly labelled as such.

For further details see section G. Electricity of the New Zealand Energy Data File 2011.

In 2010, 43,401 GWh or 156 PJ of electricity was generated in New Zealand with 91% of this being provided by New Zealand five largest generators, Meridian Energy (32%), Contact Energy (24%), Genesis Power (18%), Mighty River Power (13%) and TrustPower (5%).

In 2010 Hydro, Gas, Geothermal, Coal and Wind generation accounted for 57%, 21%, 13%, 4.5% and 3.7% of the total electricity generation, respectively. Other fuel types including Oil, Biogas, Waste Heat, and Wood represented the remainder.

Figure 1a: Electricity Generation by Fuel Type for 1975 - 2010

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Figure 1b: Electricity Generation by Fuel Type for 2010

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Observed electricity consumption for 2010 totalled 39,038 GWh. Of this, an estimated 5% was sold to the Agriculture, Forestry and Fishing sector grouping, 38% the industrial sector, 34% to the Residential sector, and 23% to the commercial sector. In addition to this an estimated 780 GWh of electricity was generated onsite and consumed onsite by industrial consumers, giving New Zealand’s total consumption for 2010 as 38,818 GWh.

Figure 2: Observed Electricity Consumption by Sector

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