Keeping Tiwai open could increase renewable power

Common belief that closing down Tiwai aluminium smelter would boost renewable electricity turned on its head. (Image: Getty

Ian Llewellyn

Wed, 09 Mar 2022

Modelling shows that in the long-term greenhouse gas emissions in the electricity system could fall further if the Tiwai Point aluminium smelter stays open rather than closing in 2025.Most thinking in the electricity sector is that the quick closure of the smelter would drive out thermal generation more quickly and deeply as it would free up more supply from the southern hydro lakes.However, work by energy consultant firm Energy Link has come up with a seemingly counterintuitive conclusion that in the long term, the indefinite operation of the...

Unlock all stories free for 10 days

Stay informed on business, government and financial developments across New Zealand.

Deeply researched, twice-edited and fact-checked news
Annual subscribers also receive a complimentary subscription to The Wall Street Journal
Personalised email news alerts, plus gift up to 5 stories a month to non-subscribers

We won’t charge for 10 days. You can cancel anytime with two clicks, an email or a phone call. Find out more.

We are serious about journalism.

Name {{ registerForm.errors.get('name') }}

Email address {{ registerForm.errors.get('email') }}

Phone Number {{ registerForm.errors.get('phone') }}

Job Title {{ registerForm.errors.get('title') }}

Password Minimum password length of 8 characters.
Require at least one upper and lowercase, numeric, and special character. {{ registerForm.errors.get('password') }}

Repeat password {{ registerForm.errors.get('password_confirmation') }}

We had trouble validating your card. It's possible your card provider is preventing us from charging the card. Please contact your card provider or customer support.

Credit Card

Cardholder's name

{{ __(plans[index].interval) | capitalize }} {{ plans[index].attributes.old_price | currency }} {{ plans[index].price | currency }}

You will be charged in 10 days unless you cancel beforehand.
We will remind you three times before charging you.
All subscriptions auto renew but are easy to cancel.

I Accept The Terms Of Service

{{ registerForm.errors.get('terms') }}

Tax: {{ taxAmount(selectedPlan) | currency }}

Total Price Including Tax: {{ priceWithTax(selectedPlan) | currency }} {{ selectedPlan.type == 'user' && spark.chargesUsersPerSeat ? '/ '+ spark.seatName : '' }} {{ selectedPlan.type == 'user' && spark.chargesUsersPerTeam ? '/ '+ __('teams.team') : '' }} / {{ __(selectedPlan.interval) | capitalize }}