Image
Credit: Rebekah Parsons-King
Innovation Fund

Energy from tidal currents - Kick-starting a new marine industry with huge potential

We investigated whether generating electricity from the strong tidal currents within Cook Strait is viable for Aotearoa New Zealand.

Project LeaderDurationBudget
Brett Beamsley (MetOcean Solutions)November 2017 – June 2019$300,000

Overview

 

Cook Strait is potentially one of the best sites in the world for generating power from tidal currents.Tidal currents are a highly predictable renewable energy source. Our research explored how many tidal turbines would be enough to generate energy to power a major city like Auckland (about 1000 megawatts).  

One major barrier to industry investment in tidal current energy is lack of knowledge about the scale of investment required. We used computer models to estimate power output from tidal flows within Cook Strait and determined the best locations within the Strait and the size required for a tidal turbine farm that could generate 1000 megawatts of electricity. We have also developed novel tools and methods to make it possible to rapidly estimate the power output from tidal energy.  

Another potential barrier to development is whether tidal turbine farms will affect the natural tidal flows, so we also analysed their impact on tidal flows.  

Our research aimed to provide the tools and quantitative data to stimulate industry investment and kick-start a new sector of the marine economy. 

Related News

Project proposal

1 MB | pdf

Location

Tools & Resources

This project has produced or contributed to:

A step closer to a future powered by tidal current energy
Presentation
Webinar presentation by Ross Vennell, February 2021 (30 mins + Q&A)
View
Metadata catalogue: Energy from tidal currents project
Dataset
This project has produced a dataset. You can find out about it through our metadata catalogue. 
View
Rapid initial assessment of the number of turbines required for large-scale power generation by tidal currents
Academic publication
Vennell R, Major R, Zyngfogel R, Beamsley B, Smeaton M, Scheel M and Unwin H (2020) Renewable Energy
View
Kick-starting tidal current energy in the Cook Strait
Summary
This 1-page 'postcard' summarises research that investigated the viability of generating electricity from the strong tidal currents within Cook Strait.
View

Related projects & activities

Image
Frameworks for achieving and maintaining social licence
We investigated the use of the term ‘social licence’ in Aotearoa New Zealand and what factors influence social licence.
More
This project has produced or contributed to
Image
Creating value from a blue economy
We studied initiatives to create economic value from sustainable marine activities that are based on healthy ecosystems. We used the findings to map and model a blue economy.
More
This project has produced or contributed to
Image
Credit: Leigh Tait NIWA
Measuring ecosystem services and assessing impacts
We developed new ways to measure and map the ecosystem services provided by marine ecosystems.
More
This project has produced or contributed to
Image
Credit: Dave Allen NIWA
Development of valuation frameworks and principles
We identified frameworks and principles for recognising the multiple values of the marine environment to support EBM.
More
This project has produced or contributed to
Image
Stressor footprints and dynamics
We investigated how coastal waters and oceans mix and transport materials that can stress marine ecosystems.
More
This project has produced or contributed to