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10th Okinawa Hawaii Ocean Energy and Economic Development Symposium and Workshop

Since 2010, Ocean Energy Workshops have been held alternately in Kona and Kumejima under the Okinawa Hawaii Clean Energy Partnership. This partnership was formed by a Memorandum of Cooperation signed by the Japanese Ministry of Economy Trade and Industry, the United States Department of Energy, Okinawa Prefecture, and the State of Hawai’i, to develop and deploy clean and renewable energies.

Expert meeting as part of the Hawaii Okinawa Clean Energy Partnership

Expert meeting as part of the Hawaii Okinawa Clean Energy Partnership

This year, the 10… Continue reading

India’s policy developments are opening doors for OTEC

The ministry of new and renewable energy (MNRE) in India has declared that ocean energy is officially a renewable energy source and now falls under Renewable Purchase Obligations (RPO). This recent Policy change offers new opportunities for OTEC in India.

The RPO states power suppliers are required to procure a part of their power from renewable sources. By including Ocean Power as a renewable source, investing in OTEC is made more attractive. This… Continue reading

Ocean thermal energy ‘ideal’ to power Maldives

Ocean thermal energy conversion (OTEC) is the ideal renewable energy solution for the Maldives, according to Global OTEC Resources, an advocate for commercial OTEC systems to provide electricity and desalination to small island states. Global OTEC Resources has co-produced a paper with University of Exeter that assesses the feasibility of OTEC in the Maldives.

The paper titled ‘Assessment of extreme and metocean conditions in the Maldives for OTEC applications’ is to be… Continue reading

Flow visualization of downward condensing ammonia in a gasketed plate heat exchanger 

Recently, Maaike Leichsenring graduated from the TU Delft in Engineering Thermodynamics on flow visualization of the ammonia condensing process in a plate type heat exchanger. Generally, two-phase flow in plate heat exchangers is yet not fully understood which leads to inaccurate performance calculations. The uniqueness of the experiment is described by the fact that condensing flow of pure ammonia in a corrugated plate heat exchanger was successfully captured for the first time. These results… Continue reading

Potential effects of deep seawater discharge by an OTEC plant on the marine microorganisms in oligotrophic waters

In relation to the for 2020 scheduled 10 MW OTEC plant offshore the Martinique Island, this project called ‘IMPALA’ (Impacts of artificial upwelling on microplankton) aims to study the potential environmental impacts of releasing, below the surface, deep seawater flowing out of OTEC plant. This OTEC plant will pump approximately 100,000 m3.h−1 of deep seawater at 1100 m depth. In order to optimize the energy efficiency, the deep seawater should be rejected close… Continue reading

Allseas targets renewables with acquisition of OTEC specialist Bluerise

Allseas has acquired Bluerise, a specialist developer of Ocean Thermal Energy Conversion (OTEC) technology that delivers renewable energy solutions.

Based in Delft, the Netherlands, Bluerise has been researching and developing OTEC technology for 9 years, designing systems that utilise the natural temperature difference in the ocean between cold deep water (5°C) and warm surface water (25°C) to generate clean electricity.

Allseas will use its offshore expertise and record of deep-water technologies to advance Bluerise concepts… Continue reading

7th International OTEC Symposium

7thOTECSymposiumOn September 26-28, the 7th International OTEC Symposium will be held in Busan, Republic of Korea. Busan is a beautiful maritime city, and is the second largest metropolitan city in Korea. Bridging between Asian continent and Pacific Ocean, it has been a hub port for fisheries and other maritime industries in North East Asia.

The symposium is hosted by Korea Research Institute of Ships and Ocean Engineering (KRISO) and Korea Society for Power System Engineering… Continue reading

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