Unique Full Scale PTO System Bi-Direction Wind Tunnel Test Facility
Wave energy converters are generally placed in very harsh environment and are hard to access due to their location and/or unfavourable weather conditions. With this in mind a full scale wind tunnel test facility capable of simulating a variety of wave heights and wave periods has been built to fully test and validate Aquanet's full scale 1MW rated capacity Power Take-Off system (PTO). The unique 1st of its kind in the world test facility has enabled Aquanet to fully test and validate the systems performance and reliability in a variety of sea conditions, thereby de-risking the system before it is deployed at sea. Significant cost savings are achieved by commissioning and fine tuning the PTO on land prior to its deployment at sea. The full scale PTO is designed and equipped to demonstrate the system’s capability to generate real time electricity.
The power take-off of a wave energy converter is defined as the mechanism with which the absorbed energy by the primary converter is transformed into useable electricity. The PTO system is of great importance as it affects not only directly how efficiently the absorbed wave power is converted into electricity, but also contributes to the mass, the size and the structural dynamics of the wave energy converter (WEC).
By having this direct influence on the wave energy converter, the PTO system has a direct impact on the Levelised Cost of Energy (LCoE). The PTO system has a direct effect on the efficiency of power conversion; hence, it has a direct impact on the annual energy production. The reliability of the PTO system affects the availability (the energy production) and the operation and maintenance cost.
Our PTO system has undergone step changes and modifications from the experience learnt through rigorous modelling, tank testing and validation in real ocean environment, particularly over the past 3 years. We have now built a robust and reliable commercial PTO system that requires very little maintenance throughout the 30 years life design of the system. The PTO system, designed to operate in all sea conditions, is now ready for onshore demonstration at full scale. It is 100% environmentally friendly, with no negative impact on marine life, no contaminants and zero emissions.
To ensure the cost-effectiveness of the WEC system, a control strategy is carefully designed for the PTO system to respond to the irregularity of each incoming wave by adjusting the stiffness and the damping of the PTO system. With a simplified design and highly efficient air turbine, the efficiency of the system is thereby increased and hence its cost-effectiveness.
Aquanet has engaged a renowned European engineering entity to assist in validating and certifying its technology's performance capabilities.
The PTO system will be showcased until the full scale 1MW WEC is deployed for sea trial.
Send us an email, by clicking here to register your interest to visit our PTO system test facility.
Global Projects Under Development
1MW Wave Energy Converter Demonstration
Aquanet is installing the world's first 1MW single unit wave energy converter, 'aquaWAVE™', that is planned for sea deployment in 2020. The project CAPEX is fully funded by a Taiwanese power project developer with the intention of scaling up to a small array power plant in the next 2 years following the successful demonstration of the first unit at sea.
The project will demonstrate the technology's reliability in real ocean conditions, its performance in any part of the world, with attractive economics and compelling commercial potential. Follow-on projects will deploy arrays of multiple units, capitalising on economies of scale.
The Hybrid Project in Europe
Aquanet has commenced its integrated design activities for offshore hybrid (wind/wave and O&G) projects. Lead by Aquanet Power (UK) Limited and in collaboration with its partners, the first stage of this project will complete by Q2/3 of 2020 and will lead to the second stage of the project which includes a demonstration unit in 2021.
Europe has a substantial focus on investment in marine renewables, making it an attractive location for Aquanet to launch it’s hybrid project. The project aims to help reducing the LCOE to very competitive levels as predicted by a number of reports from world renowned resources.
Follow on projects will have an European focus, being the most developed region in the world in the renewable energy industry.