More Power – Same Water.

Intelligent Hydropower Through Artificial Intelligence

Discover IVAC (Intelligent Vane Actuation Control), a smarter way to optimize hydropower performance. By harnessing advanced learning algorithms, IVAC increases efficiency, expands the turbine’s operating range and enhances operational flexibility.

At the same time, IVAC reduces vibrations and mechanical wear, supporting more reliable and efficient operation.

Designed for seamless integration, IVAC is quick and easy to install on both existing hydro plants and new installations.

0
UN SDGs supported
0 year +
Lab-tested
Intelligent Vane Actuation Control
AI-optimized guide-vane positioning · IVAC
Validated byNTNU
1 year +Lab-tested
6UN SDGs supported
2021Founded
Why IVAC

Built to make every drop count

What makes IVAC the leading intelligent control solution for hydropower turbines.

Making Every Drop Count

IVAC - Intelligent Vane Control. Optimizing hydro plant operations by increasing power production without increasing water usage.

Lab-validated efficiency gains
✦

Patented control system

Weis has developed a patented control system that employs sophisticated AI algorithms to enhance the efficiency of Francis turbines. The system is engineered to individually control each blade's guide vane, optimizing performance and energy output.

Modern Interface

Dive into the details with our modern, intuitive dashboard. It provides real-time insights and detailed analytics at a glance.

Effortlessly Compatible

Seamless integration with your current hydro systems, ensuring a smooth transition without the need for extensive modifications and expensive investments.

Francis turbinesExisting plant controlStandard protocols
IVAC per-vane actuators mounted around the Francis turbine at the NTNU Hydroelectric Laboratory
About Weis

Unlocking wasted energy in hydropower

Weis was established in 2021 in response to exciting hydro turbine efficiency enhancing technology invented by Ståle Enger (CTO, Weis AS), an expert in hydroelectricity generation, to address an urgent unmet need in the hydro industry. Weis aims to improve the efficiency of hydropower plants through a unique approach to turbine control, improving efficiency, unlocking wasted energy and extending turbine lifespan. Our vision is to become the leading provider of intelligent control solutions for hydropower turbines, supporting both the energy industry and the environment

  • Patented AI-driven guide-vane control
  • Validated at NTNU Hydroelectric Laboratory
  • Measurable turbine efficiency gains
  • Reduces mechanical vibrations and wear
  • Compatible with existing Francis turbines
  • Quick retrofit — no full plant shutdown needed
  • Real-time monitoring dashboard included
  • Supports 6 UN Sustainable Development Goals
From lab to product

Concept

IVAC hardware and AI algorithm technology demonstrated in small scale turbine at NTNU Hydroelectric Laboratory

01

Norwegian University of Science and Technology

NTNU is the leading water research facility in Norway. The Hydroelectric Laboratory has a unique closed-loop system for testing of hydropower turbines. Weis has been granted access to the lab for testing of the system.

02

NTNU waterturbine

NTNU Hydroelectric Laboratory operates a highly optimised 1:5 scale turbine. This turbine is one of the most efficient turbines in the world.

03

Initial Prototype

The initial prototype was developed to work with the NTNU Francis turbine and was used to test the viability of the technology.

04

Results from testing

After 3 weeks of testing, the results were in. The prototype was able to increase the efficiency of the turbine in all scenarios.

05

Report from NTNU based on testing

The test results is confirmed by independent scientists at NTNU.

06

IVAC is born

Intelligent Vane Actuation Control - IVAC is born.

IVAC is born
Impact

Sustainability

By increasing the efficiency and performance of hydroelectric turbines IVAC will contribute to several United Nations Sustainable Development Goals (SDGs), emphasising environmental sustainability, clean energy, economic growth, and climate action. The specific SDGs impacted include:

SDG 7

Affordable and Clean Energy

By enhancing the efficiency of hydroelectric turbines, the product directly aligns with Goal 7, which aims to ensure access to affordable, reliable, sustainable, and modern energy for all.

SDG 9

Industry, Innovation, and Infrastructure

The product supports Goal 9 by promoting innovation in the infrastructure sector. Increased efficiency in hydroelectricity production contributes to sustainable industrialisation and infrastructure development.

SDG 13

Climate Action

Improving the efficiency of hydroelectric turbines helps reduce the carbon footprint of energy production, contributing to efforts to combat climate change and its impacts.

SDG 14

Life Below Water

Hydroelectric power is considered a renewable energy source that minimises the environmental impact associated with traditional fossil fuel-based energy. This contributes indirectly to Goal 14 by promoting the responsible use of resources and minimising water-related environmental impacts.

SDG 15

Life on Land

By providing a cleaner alternative to energy production, the product indirectly supports Goal 15 by reducing the environmental degradation associated with traditional energy sources and their impact on terrestrial ecosystems.

SDG 17

Partnerships for the Goals

Collaboration between technology providers, hydroelectric plant operators, and relevant stakeholders is essential for the successful implementation of products that enhance hydroelectric efficiency. This aligns with Goal 17, which emphasises the importance of partnerships for achieving sustainable development.

People

Team

Weis has a team of highly qualified and experienced staff, with the track record needed to commercialise and take to market the IVAC innovation

Jan Holm

Jan Holm

Managing Director

Ståle Enger

Ståle Enger

Co-Founder, Inventor & Board Member

Andreas Stangnes

Andreas Stangnes

CTO

Jørn Mejdell Jakobsen

Jørn Mejdell Jakobsen

Chairman of the Board

Markus Stangnes

Markus Stangnes

System Developer

Aleksander Larsen

Aleksander Larsen

System Developer

Stein Ole Larsen

Stein Ole Larsen

Board Member & Investor

Wiggo Carlsen

Wiggo Carlsen

Co-Founder & Board Member

Dag Omre

Dag Omre

Business Developer

Now accepting pilot partners

Ready to unlock more energy from your turbines?

Join the growing number of hydropower operators improving efficiency with IVAC. Reach out to schedule a technical discussion or request a demo.

Contact

Get In Touch

Interested in IVAC for your plant? We'd love to hear from you.

Get in Touch