Device interactions in reducing the cost of tidal stream energy

2015 ◽  
Vol 97 ◽  
pp. 428-438 ◽  
Author(s):  
A. Vazquez ◽  
G. Iglesias
Keyword(s):  
Tidal Stream ◽  
Tidal Stream Energy ◽  
The Cost

Development of an Economic and Efficient Installation Vessel for Tidal Stream Energy Converter Arrays

2013 ◽  
Author(s):  
Rachel Nicholls-Lee ◽  
Simon Hindley ◽  
Richard Parkinson
Keyword(s):  
Oil And Gas ◽  
Cost Effective ◽  
Concept Design ◽  
Market Place ◽  
Operations And Maintenance ◽  
Tidal Turbine ◽  
Tidal Stream ◽  
Tidal Stream Energy ◽  
Time Required ◽  
The Cost

In order for tidal stream technology to develop into a viable and cost effective energy solution, the overall cost of tidal array installation, operations and maintenance must be driven down. The key issues which drive the cost are the time required to conduct operations and susceptibility to weather risk coupled with the expense of marine assets. Current vessels have limited operational windows due to weather and tidal constraints, which result in considerable cumulative costs due to high charges for such vessels. The marine renewable industry is currently reliant on vessels of opportunity from the offshore oil and gas sector; which, while sufficient for single device demonstration deployments, are not viable for array installations. De-coupling the tidal sector from this market place offers the opportunity to reduce the volatility of vessel day rates. This paper presents the concept design of an efficient and economic, fit for purpose installation vessel for tidal stream energy converters. The vessel has good dynamic positioning capabilities for operation in strong tidal currents thus broadening the operational window. The environmental impact of the vessel is reduced when compared to existing vessels. A key criterion throughout the design process is minimizing the cost of the vessel to tidal turbine site developers.

scholarly journals A Numerical Methodology for Simple Optimization of Marine Hydrokinetic Turbine Array

2020 ◽  
Author(s):  
Soheil Radfar ◽  
Roozbeh Panahi
Keyword(s):  
Tidal Power ◽  
Hydrokinetic Turbines ◽  
Hydrokinetic Turbine ◽  
Wide Range ◽  
Tidal Stream ◽  
Tidal Stream Energy ◽  
Marine Hydrokinetic ◽  
High Level ◽  
The Cost ◽  
Promising Type

Tidal stream energy, due to its high level of consistency and predictability, is one of the feasible and promising type of renewable energy for future development and investment. Applicability of Blade Element Momentum (BEM) method for modeling the interaction of turbines in tidal arrays has been proven in many studies. Apart from its well-known capabilities, yet there is scarcity of research using BEM for the modeling of tidal stream energy farms considering full scale rotors. In this paper, a real geographical site for developing a tidal farm in the southern coasts of Iran is selected. Then, a numerical methodology is validated and calibrated for the selected farm by analyzing array of turbines. A linear equation is proposed to calculate tidal power of marine hydrokinetic turbines. This methodology narrows down the wide range of turbine array configurations, reduces the cost of optimization and focuses on estimating best turbine arrangements in a limited number of positions.

Development of a 300 kW horizontal-axis tidal stream energy conversion system with adaptive variable-pitch turbine and direct-drive PMSG

Energy ◽  
2021 ◽  
Vol 226 ◽  
pp. 120361
Author(s):  
Yongjun Dong ◽  
Jingfu Guo ◽  
Jianmei Chen ◽  
Chao Sun ◽  
Wanqiang Zhu ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Horizontal Axis ◽  
Direct Drive ◽  
Variable Pitch ◽  
Conversion System ◽  
Tidal Stream ◽  
Tidal Stream Energy ◽  
Energy Conversion System

scholarly journals Comparative Effects of Climate Change and Tidal Stream Energy Extraction in a Shelf Sea

2018 ◽  
Vol 123 (7) ◽  
pp. 5041-5067 ◽  
Author(s):  
Michela De Dominicis ◽  
Judith Wolf ◽  
Rory O'Hara Murray
Keyword(s):  
Climate Change ◽  
Energy Extraction ◽  
Shelf Sea ◽  
Tidal Stream ◽  
Tidal Stream Energy
Sign in / Sign up

Export Citation Format

Share Document