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- Izquierdo-Perez et al.
Offshore floating hybrid wind and wave energy is a young technology yet to be scaled up. A way to reduce the total costs of the energy production process in order to ensure competitiveness in the sustainable energy market is to maximize the farm’s efficiency. To do so, an energy generation and costs calculation model was developed with the objective of minimizing the technology’s Levelized…
- Allahdadi et al.
An Ultra high-resolution unstructured wave model with 200 meters coastal resolution and more than 5.7 million mesh grid points is developed to quantify wave energy resources along the U.S Coasts in the Gulf of Mexico, Puerto Rico, and U.S Virgin Islands. The modeling, based on SWAN, follows the International Electrotechnical Committee (IEC) technical specifications for setup, verification, and…
- Kilcher et al.
Theoretical resource assessments provide an estimate of the total energy available for conversion to perform useful work, and are a critical first step in understanding the value proposition of a type of renewable energy. Theoretical wave energy resource assessment at regional and national scales has traditionally involved a line-integral of the wave energy flux that arrives at the coastline…
- Insaf et al.
An attempt is made for the first time to assess tidal energy resources at Miani Hor tidal lagoon of Baluchistan province of Pakistan by applying an innovative approach using Geographical Information System (GIS) tools/techniques to develop different geo-statistical models. Baluchistan is the largest province of Pakistan and fortunate to have a natural tidal lagoon called Miani Hor. The…
- Gross and Magar
Tidal renewable energy is a promising alternative energy resource, and marginal seas are known as excellent sites for tidal energy exploitation. In-stream and tidal energy devices are less exposed to extreme weather events than wind energy. Nevertheless, during tropical storms, the currents may intensify to levels that threaten the integrity of the devices. This paper presents Hurricane Odile…
- Finnegan et al.
As the world moves to a greater reliance on renewable energy, a vital component will be the predictability and dependability of the energy source; tidal energy provides such a solution. Horizontal axis tidal turbines are the most mature technology of all the marine renewable energy devices currently under development, as full-scale porotypes are already being tested and operated. As the…
- Germain et al.
The development of marine current turbine arrays depends on the understanding of the interaction effects that exist between turbines in close proximity. Moreover, the ambient turbulence intensity also plays a major role in the behaviour of tidal turbines. Thus it is necessary to take ambient turbulence into account when studying interaction effects between several turbines. In…
- Hasan and Dincer
One of the main solutions to climate change is to harness energy from renewable and clean resources. A novel ocean thermal energy conversion (OTEC) system is proposed for the production of methanol; cooling and power is developed and energetically analyzed. In this proposed trigeneration system, a two-stage Rankine cycle that operates on the inherent temperature difference along the depth of…
- Vennell et al.
Much of the global tidal current energy resource lies in the accelerated flows along narrow channels. These channels have the potential to produce 10–1000 s of MW of electricity. However, realizing 100 MW of a channel׳s potential is much more complex than installing 100 1-MW turbines because large scale power extraction reduces tidal currents throughout the channel, changing the resource. This…
- Fairley et al.
Better understanding of the global wave climate is required to inform wave energy device design and large-scale deployment. Spatial variability in the global wave climate is analysed here to provide a range of characteristic design wave climates. K-means clustering was used to split the global wave resource into 6 classes in a device agnostic, data-driven method using data from the ECMWF ERA5…
- Phoenix
Tidal current turbines have the potential to provide a proportion of global energy requirements. Installations to date have been singular test devices but commercial application will involve multiple devices deployed in farms. The viability of large-scale tidal turbine arrays will depend on the expected energy yield of the farm and the associated hydro-environmental impacts. The effects are,…
- Owen
The costs of installing tidal energy technology are high, requiring expensive vessels to drill sockets in the sea bed or to handle gravity based structures of substantial mass, and this impacts on the commercial viability of any proposed marine renewables development. This thesis offers a viable alternative to socketed or gravity based installations by proposing that the downwards lift force…
- Goh et al.
Headland is identified as potential tidal current energy extraction sites. The complex flow circulation at headland initiated a high-resolution Tg Tuan Headland numerical model in this research. Assessment on potential and impact of tidal energy exploitation was conducted through detail assessment for different zones and depths around the headland. The simulated results show that tip of the…
- Schaeffer et al.
Ocean currents are an energy resource that could be harnessed to increase renewable energy yields and reduce humanity's dependence on fossil fuels. The first challenge is to identify regions of significant kinetic energy flux that are a viable distance from the shore for the extraction and transport of energy. Western boundary currents (WBCs) have been identified as the most promising resource…
- Castro-Santos and Filgueira-Vizoso
The aim of this work is to develop a software to calculate the economic parameters so as to determine the feasibility of a floating offshore renewable farm in a selected location. The software can calculate the economic parameters of several types of offshore renewable energies, as follows: one renewable energy (floating offshore wind—WindFloat, tension leg platform (TLP), and spar; floating…
- Goncalves et al.
A wave energy assessment is performed in the Canary Islands, based on a 33-year hindcast, between 1979 and 2011. The third-generation wave models WAVEWATCH III and SWAN are used to study the generation of the waves in the North Atlantic basin and the transformation of the waves in the Canary Islands, respectively. The hindcast system was validated in a prior study, showing a relevant wave…
- Copping et al.
- Vennell
The Betz limit sets a theoretical upper limit for the power production by turbines expressed as a maximum power coefficient of 16/27. While power production by wind turbines falls short of the Betz limit, tidal turbines in a channel can theoretically have a power coefficient several times larger than 16/27. However, power extraction by turbines in large tidal farms also reduces the flow along…
- Coe et al.
This report outlines the “MASK3” wave tank test within the Advanced WEC Dynamics and Controls (AWDC) project. This test represents the final test in the AWDC project. The focus of the MASK3 test was to consider coordinated 3-degree-of-freedom (3DOF) control of a WEC in a realistic ocean environment. A key aspect of this test was the inclusion of a “self-tuning” mechanism which uses an…
- Smart and Noonan
GVA and Jobs Supported
- With UK deployment of 100MW per year from 2021/22, and a realistic share of a growing global market, the tidal stream industry could generate a net cumulative benefit to the UK by 2030 of £1,400m, consisting of £1,600m GVA from the domestic market and £1,100m GVA from exports, offset by £1,300m of revenue support. This would also support a total of almost 4,…
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