CaSil Tech means business with all the world's geothermal stations

A CaSil Tech pilot plant. (Image: Supplied)

Fri, 18 Jul 2025

Startup CaSil Technology is ready to commercialise technology that promises to solve the silica scale problem that clogs up geothermal power stations worldwide.After several pilot projects, the Victoria University spinout is about to embark on a pre-Series A capital raise in the low millions of dollars. The raise will be used to secure its first commercial contracts, with Indonesia the most likely candidate.Its founders say the add-on technology allows geothermal plants to produce more electricity and greatly reduce maintenance. Just as importa...

Subscribe to BusinessDesk

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

You can cancel anytime with two clicks, an email or a phone call.
Find out more.

We are serious about journalism.

Already a Subscriber ? Sign in here.

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].name) | capitalize }} {{ plans[index].attributes.old_price | currency }} {{ plans[index].price | currency }}

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 }}