Where does our electricity come from?
Renewable share since 2010
Share of electricity generated from hydro, geothermal, wind, solar, wood and biogas, over each 12 months.
By fuel
| Fuel | GWh | Share | On the year before |
|---|
November 2025 to October 2026. Batteries store electricity rather than generate it, so they aren't counted as renewable.
Wholesale prices
Monthly average of final half-hourly prices, $ per megawatt-hour.
Wholesale and household prices
% change on a year earlier.
About these numbers
Generation is metered output of power stations, from the Electricity Authority's EMI datasets. Coverage of small solar and other embedded plants has grown over time, so part of their growth reflects coverage rather than new plant. MBIE's official renewable share is calculated differently (it includes some generation not metered here), so the two can differ.
Wholesale prices are final prices at two reference points: Otahuhu, where most North Island demand is, and Benmore, near the big South Island hydro lakes. Prices rise when hydro lakes are low and gas or coal sets the price.
Household prices are the electricity part of the CPI. Wholesale energy is only part of a household bill; lines charges, retail costs and GST make up the rest, so household prices move much less.
Sources: Electricity Authority, EMI wholesale datasets; Stats NZ consumers price index.