Ngawha Expansion Project2021-01-19T15:12:29+13:00

The Ngāwhā Power Station Expansion

Constructing the new power stations.

How geothermal power generation works.

Protecting the local environment.

Keeping people informed and contacting us.

The expansion of the Ngāwhā Geothermal Power Station creates a more affordable, reliable and secure electricity supply for the Far North. Once complete, generation capacity will more than double to 57 Megawatts.

Top Energy recently commissioned the new OEC4 power station after an intensive three-year construction, well drilling and plant assembly programme. Despite delays due to COVID-19 the power station was completed six months earlier than planned.

Good news for Northlanders

Ultimately, expansion of the Ngāwhā Geothermal Power Station provides a renewable and lower cost source of electricity generation with clear benefits for local consumers:

  • Security of supply and reliability will be improved
  • The region will become less reliant on generation from the south and associated transmission through Auckland

Safe, reliable and renewable

Geothermal energy is a safe and reliable energy source. It’s not dependent on rainfall like hydro-power or other fluctuations in supply, and is considered renewable and sustainable energy source.

The generation model sees the geothermal fluids extracted injected back into the underground reservoir, minimising environmental impacts and maintaining the reservoir fluid mass.

Good for the whole country

The expansion of the power station contributes towards the Government’s target of greater than 90% renewable electricity generation by the early 2030’s and supports its climate change objectives. It also improves national electricity security of supply, by contributing 0.6% of total national electricity production from a steady and renewable source.

Latest news

Our new power station is live!

Our new geothermal power station is live! The electricity coursing through power lines and cables, heating kettles and turning on lights is now generated in the Far North. To read the story in full please click here. [...]

October 2020 newsletter

Project remains on target Weather conditions at the site have been excellent for construction activities these past few weeks as we transition out of construction and into the commissioning phase of the project. To read the full Ngawha update please click here. [...]

August 2020 newsletter

High Rain Fall The expansion project experienced over 630mm of rain fall from early June to late July, with 208mm falling on 17 July alone. The good news is the site held up well, with very little damage occurring to the construction area.. [...]