This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 654.444
millions of euros
years of data
To collect, stream and publish 2 years of open-sea operating data of both a floating WEC and a shoreline wave power plant
To de-risk innovations that lower mooring cost over 50% and enhance survivability
To increase OWC power production 50% and improve reliability
To advance predictive and latching control to enable 30% increase in power production
To advance standards to reduce business risk and give access to lower cost capital
To reduce uncertainty, frequency, risk and cost of offshore operations
To improve risk management and cost estimation with real data
To maximise impact on the entire value chain and society for wave energy
Floating OWC Device: The buoy hull moves in the opposite direction to the water column inside the spar for the most typical wave periods. The oscillation in the column drives a low speed air turbine that is placed above the sea level. The rotor is the only moving part of the turbine resulting in higher reliability and more cost-effective production.
Novel bi-radial turbine: A novel radial self-rectifying impulse air turbine for use in Wave Energy Converters that is both mechanically simple and reliable. Exhibiting reduced pressure losses in comparison with current designs, this turbine is extremely compact axially, has the highest known efficiency amongst air turbines, over 70%, and a silent operation. The possibility of increasing the rotational inertia can easily be achieved to enable kinetic energy storage. The design includes a cylindrical axially-sliding stop valve in series with the turbine.
Advanced control algorithms: Several studies have shown the great potential of using advance information on incoming wave in controlling WECs. Predictive control uses incoming wave information for control, applicable to all WECs. Latching (valve control) is specific to OWC.
Shared mooring systems: Shared mooring systems have long been used in aquaculture farms, where they can reduce mooring costs by nearly 50% in large farms at deeper deployments. Similar cost reduction is expected in deployment of over five devices for wave energy.
Elastomeric mooring tether: Compared to conventional mooring ropes, elastomeric tethers have load-extension characteristics that permit very significant reduction in peak loads and fatigue loads within the mooring system and at the hull connections thus reducing the costs of these structures whilst improving reliability.
Project development services: These services involve open-sea testing and validation services, guidelines and standards for ocean energy, services related to the engineering and construction of wave energy farms and seakeeping, installation and O&M services.
Design of oscillating-water-column wave energy converters with an application to self-powered sensor buoys
J.C.C. Henriques*, J.C.C. Portillo, L.M.C. Gato, R.P.F. Gomes, D.N. Ferreira, A.F.O. Falc~ao
LAETA, IDMEC, Instituto Superior Tecnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
The quest for conquering the ocean and understanding its behaviour has been a challenge with increasing needs for innovation and technology investments in many areas of strategic value for the promotion, growth and competitiveness of the marine economy worldwide. Current oceanographic buoy systems are limited to low power levels and intermittency of data acquisition and transmission, among other aspects that need to be overcome to comply with new and more demanding applications. The development of marine activities requires more powerful and reliable data-acquisition systems to guarantee their future sustainability. This work presents a new systematic methodology for optimum design of wave energy converters. The methodology was applied to design two self-powered sensor buoys for long term monitoring based on the oscillating-water-column principle. The optimisation focussed on buoy hydrodynamic shape, sizing and selection of the turbine and the generator, as well as the control law of the generator electromagnetic torque. The performance was assessed through the use of the power matrix and a set of performance indicators. These performance indicators were defined to allow a simple comparison between different wave energy concepts. The results confirm the applicability of the designed buoys for a next generation of oceanographic monitoring systems.
The first industrial workshop of OPERA has taken place at the framework of The Bilbao Marine Energy Week (March 2017). Around 80 persons attended this workshop aimed at learning from the first practical experiences of open-sea operation, identifying common challenges, best practices and needs. The workshop brought together technology and project developers, marine contractors and test sites/pilot projects as catalysers of experience generation.read more
Testing of the OPERA project’s novel air turbine has already started at the Mutriku wave power plant: turbine operated at full power on the first day of testinMutriku, 22 May 2017 Following the successful completion of the laboratory tests at IST University in Lisbon, Kymaner’s biradial air turbine was shipped last week for further validation under real conditions. Actually, the novel air turbine will undergo thorough... read more
The University of Exeter has carried out performance and durability tests of a set of elastometric mooring tethers as part of the H2020-funded OPERA (http://opera-h2020.eu/) wave energy project.read more
Olatz Ajuria, project leader at the Basque Energy Board (EVE), introduces OPERA and its main objectives, along with the deployment activities of OCEANTEC’s MARMOK-A-5 device at BiMEP. Led by TECNALIA, the OPERA project will collect, analyse and share open-sea operating data and experience to validate and de-risk four industrial innovations for wave energy opening the way to reduce cost by 50% in the long term.read more
Air turbine innovation is considered as one of the most promising cost-reduction pathways for OWC wave energy devices and the OPERA project specifically aims at validating and de-risking a novel biradial turbine prototype. This prototype is already manufactured and in the final assembly stage prior to PTO dry-testing at the turbo-machinery laboratory in IST.
The biradial turbine is supplied by Kymaner and is based on a patented concept (European patent 11710901.7).read more
Further to the installation of a pressure sensor and data logger in front of the Mutriku wave power plant, a TRIAXYS Directional Wave Buoy from Canadian manufacturer AXYS Technologies was deployed at BiMEP open-sea test site, just in front of OCEANTEC’s MARMOK wave energy device, which is now injecting energy into the Spanish grid. Deployment was realised by Bilbao-based marine contractor Commercial Diving Activity (CDA).read more
2018 · June · International Conference on Ocean Energy (ICOE)
2017 · August, 27 - September, 2 · EWTEC2017 - 12th European Wave and Tidal Energy Conference
Place: Cork, Ireland
The latest in the foremost bi-annual scientific conference series on Wave and Tidal Energy will return to the historic city of Cork, Ireland:
- Scientists and experts in the fields of marine renewable energy will reveal their latest advances
- Exhibitors will present exciting new products and services
- Abstract submission open from October 2016
- A selection of the submitted papers will have the opportunity to be published in the International Journal of Marine Energy (IJoME)
2017 · March, 27-31 · III Marine Energy Week
Place: Bilbao, Spain
Involved Partners: TECNALIA, EVE
2017 · January 20 · 2017 Maynooth University Wave Energy Workshop
Place: Glenroyal Hotel, Maynooth
Involved Partners: TECNALIA, EVE
2016 · November, 8-9 · Ocean Energy Europe 2016 Conference & Exhibition (OEE2016)
will OEE2016 offer?
- A busy 1250m2 exhibition hall, showcasing the latest projects and products from the key players in ocean energy
- A topical, high-quality conference programme with a strong focus on finance, featuring high-level politicians and decision-makers, and the biggest names in the industry
- Unrivalled networking opportunities with 400+ professionals from across Europe and beyond, representing all parts of the value chain
- A broad range of side events, including the Ocean Energy Forum’s grand finale, taking place alongside the main event
The key players in the ocean energy sector will be there in force at OEE2016.
Visit OPERA at the stand 24 in the OEE2016
2016 · June, 1-2 · Seanergy
Place: Biarritz, Halle d’Iraty
Involved Partners: TECNALIA, EVE, OCEANTEC
2016 · May, 3 · From Seaenergies to Seanergy - Workshop #4
Place: Tecnalia, Parque Tecnológico de Zamudio
Involved Partners: TECNALIA, EVE
2016 · Febr, 23-25 · ICOE 2016 - Edinburgh