Sea Technology

AUG 2017

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36 st / August 2017 The total conversion efficiency is about 30 percent. Ocean Energy Test Site Some technologies have been vali- dated, such as the Eagle converter and ZJU turbines. However, more technol- ogies only underwent short-term trial, for reasons such as lack of trained per- sonnel, increasing uncertainties and costs. Thus, professional test sites for MRE are necessary. Under the support of SFPMRE, NOTC is preparing to build a Chinese small-scale ocean energy device test site for wave and tidal energy in Shan- dong Province. The first berth for tidal energy is 20 m deep and about 300 m offshore, and the designed capacity is 300 kW. The pilot project was initiated in August 2012. The test site selection was changed from Chenshantou to Chu Island and authorized November 2014. A full-scale tidal energy test site will be built in Zhejiang Province. The 1-MW tidal test site will be located in the Zhoushan Islands and includes three test berths. The application for the channel between Putuo Island and Hulu Island is waiting for a local li- cense to allow it to become an official test site. A full-scale wave energy test site will be built in Guangdong Province. The 300-kW wave energy test site will be located in Dawanshan and include three test berths. The feasibility study near Wanshan Island has been com- pleted. Conclusion Due to the limit of coastal wave resources in China, wave energy con- verters no more than 100 kW would be suitable to improve the stability and survivability of devices, as well as decrease their cost. Wave energy converters more than 100 kW will be deployed in remote areas in the next five years. For the tidal technology, the modular 300-kW turbines are suitable for installation in shallow waters and will increase engineering experience. The Plan of Marine Renewable En- ergy Development 2016 to 2020 was released to support the application of MRE technologies in remote islands. With more and more MRE technolo- gies entering large-scale prototype sea trials, work is well underway with the goal of forming a competitive MRE in- dustry. Acknowledgments This work has been performed in support of National Marine Renew- able Energy Platform Program of China (GHME2017ZC01), Evaluation and Planning of Marine Renewable Energy Technology (GHME2016ZC03). References For a list of references, con- tact Changlei Ma at notc ST Changlei Ma received his B.S. degree in ma- rine management from Ocean University of China in 2003 and his M.S. degree in marine monitoring technology at National Ocean Tech- nology Center (NOTC), State Oceanic Administration (SOA) in 2010. His research interests include MRE technology devel- opment strategy and integration of oceanographic sensor platforms. Dengwen Xia is a senior researcher at NOTC, SOA. His areas of exper- tise include assessment of ocean energy resources, wave energy conversion technology and marine functional zoning. Jianjun Shi is an engineer at NOTC, SOA. He re- ceived his B.S. degree in 2005 and M.S. degree in mechanical engineering from Tianjin University in 2007. His research in- terests include marine environmental monitor- ing systems. ZJU 60/120-kW turbines in demonstration.

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