News

The ability of electricity supply to meet demand over time is referred to as 'security of supply'. It's about the availability of enough generation capacity ea…

Aotearoa New Zealand’s electricity system is transforming. More renewable electricity generation, like wind and solar farms, are being built to meet increasing…

Electricity in New Zealand is supplied by hydro, geothermal, thermal and wind generation. Hydro and thermal generation have some capacity to store energy – in …

New Zealand’s electricity system is transforming. In 2019, the Government passed a law targeting net zero greenhouse gas emissions by 2050. To achieve this goa…

New Zealand produces over half of its electricity by hydro-electric dams. Upstream of these dams, lakes preserve water from rain and snow for later electricity…

In May 2023, the electricity spot market experienced extreme price volatility. Spot prices swung between $0.01 and $3,350/MWh. However, despite occasionally hi…

There is currently around 270 MW of installed solar generation in New Zealand. This adds up to about the same capacity of a coal or gas fired Rankine generatio…

The Electricity Authority implemented real-time pricing for the wholesale electricity market in November 2022 in collaboration with Transpower and the wider el…

Electricity demand and generation differ across New Zealand’s two main islands. The South Island has abundant hydro generation, while the North Island contains…

The Electricity Authority monitors how much gas is being used to generate electricity and how the short run marginal cost of gas is changing each month, with c…

The high-voltage direct current cables (HVDC) electrically link the North and South Islands of New Zealand and are a vital piece of national infrastructure. Th…

Over 50% of New Zealand’s electricity is produced by hydro power. New Zealand’s largest hydro schemes, the Waitaki and Manapōuri, are in the South Island. Whil…