Jeremy Feakins en clean energy, Environment Chairman & CEO • Ocean Thermal Energy Corporation 11/4/2018 · 1 min de lectura · ~100

The Impact of OTEC

The Impact of OTEC

Ocean Thermal Energy Conversion (OTEC)
and Seawater Air Conditioning (SWAC) can sound like very confusing terms. While their processes may be complex, their efforts and potential achievements can have an enormous impact in the world of sustainable energy.

Ocean Thermal Energy Conversion

The very first example of OTEC first came in the late 19th century when Jules Verne introduced the idea in his novelTwenty Thousand Leagues Under the Sea. This supposedly inspired scientists around the world to begin working on the concept for real life implementation. However, physicist Jacques-Arsene d’Arsonval is generally seen as the originator of this technology that uses the ocean’s varying temperatures to produce power.

The first facility utilizing this technology would not come about for another century, though. The world’s first net power producing facility created is found in Hawaii at NELHA (Natural Energy Laboratory of Hawaii Authority), funded by the U.S. Department of Energy.

The Process

OTEC works by leveraging the temperature differentials in our world’s oceans between cold, deep water, and warmer surface found in tropical regions like the Caribbean. This difference can be used to generate unlimited amounts of energy without the use of damaging materials. This  form of alternative energy is turning a new page in terms of accessibility, affordability, and emissions.

Closed cycle OTEC systems consist of two large pipes and a heat exchanger. Warm surface water flows in through the first pipe and is used to heat a working fluid with a low boiling point, such as ammonia. The steam produced by the boiling ammonia turns a turbine generator, thus producing electricity. A second pipe pulls colder water from deeper parts of the ocean (1,000 meters down), which condenses that steam back into a liquid state. The pipes then take the cold water back to the deep ocean and the warm water back to the surface of the ocean, and the ammonia is recycled, creating a 24/7 process that is capable of running 365 days a year.

OTEC technology utilizes the nearly 80% of the sun’s rays that are absorbed into the surface of oceans and are replenished daily, unlike fossil fuels such as oil or coal.


This technology brings an array of economic, environmental, and social benefits to the table, increasing sustainability. In terms of the economy, OTEC reduces fuel imports and capital expenses, leading to reduced energy costs for our customers, and helps stimulate economic development.

Social benefits include (but are not limited to) affordable production of fresh water, flourishing agriculture, and sustainable aquaculture through desalination, a process that extracts mineral components from saline water. OTEC is able to contain some of the deep ocean water extracted and desalinate it. This can be done at night as well when power demand is lower. By siphoning off some of the colder ocean water in addition to some of the electricity produced, OTEC can produce fresh water at a consistent rate.

In turn, the environment benefits greatly. OTEC is a green technology that keeps our planet’s well-being in mind. It produces almost limitless renewable energy without using fossil fuels, and produces zero emissions. In fact, OTEC can save up to 7,000 tons of CO2 per year. More fresh water produced means more for human consumption, which translates to fewer people going thirsty and more people practicing better hygiene.

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Dinesh Sasane Hace 18 h · #37

No pollution comes from the development of energy through OTEC. It can function 24/7, every day, always producing energy – something that solar and wind energy cannot do. This would provide communities with a consistent source of power upon which they could always rely. We just need to find a lot of investment on building the plant...but ordinary people like me could only help disseminate information about its usefulness and it is up to big investor companies like Jeremy Feakins group to make it happen.

Fran Phillips Hace 1 d · #36

OTEC produced electricity would be significantly more expensive than fossil fuels are today.
It is very difficult to find suitable locations for OTEC systems, the plants must be located where a difference of about 40° Fahrenheit occurs year round and near enough to a shore based facility. Though plants aboard ships are a possibility, more research is needed on whether ships would be suitable to support a commercial industry. I highly support people like Mr. Jeremy Feakins in doing deep research about this technology.

Natalya Beckker Hace 1 d · #35

One of the ocean thermal energy benefits is that it does not emit any greenhouse gases into the atmosphere. It also does not rely on limited materials or waste. This method is energy efficient and an outside power source is not required for it. Perhaps one of the most important ocean thermal energy benefits is the fact that it can be used 24 hours a day, 365 days a year continuously. The sun is what warms the top water layers, and this is a constant daily event. So, as far thermal energy pros go, this is a very different one from other sources of alternative energy, which can only be used at certain specific times. This means that this method can provide a constant supply of electricity, regardless of the time and weather conditions.But very expensive to build it.

Lacresha Tinker Hace 4 d · #34

Jeremy P. Feakins OTE’s business model is to sell the water to desalination and aquaculture/agriculture companies. OTE has the potential to change and improve the lives of people worldwide. This kind of business should be supported since it is not monetary focus but with humanity benefits in mind.

Lanora Littlebear Hace 5 d · #33

Jeremy P.Feakins is the Founder of JPF Venture Group, Inc which provides the help to developing and managing business strategies and operations for start-up, early stage, and middle market companies. It also support Ocean Thermal Energy Conversion which is a viable solution to the many water crises that nations face across the globe. They have plans to harness the powers of this technology in the Caribbean, Coastal Africa, the Philippines, and South Pacific, many of which contain developing countries with severe water shortages.

Nadia Polk Hace 6 d · #32

OTE’s technology will especially benefit countries that rely on importing energy to power their communities. Jeremy Feakins hopes that OTE’s technology will help these countries become more self-sufficient and prosperous. Many social and environmental issues can be solved with the help of OTE’s technology. May this technology will be more improved.

Gwyneth Upshaw 10/9/2018 · #31

Mr. Jeremy P. Feakins team developed OTEC technology that generates electricity with no greenhouse emissions. Totally renewable energy. Works day and night with only routine pump maintenance and little ongoing costs. Open system version produces desalinated water as well. Unlimited source of free energy especially in tropical waters.

Dyan Norton 10/9/2018 · #30

The device that is used to harness the energy is known as Ocean thermal energy conversion power plants or OTEC power plants. In one type of power plants, the warmness at the surface water is used to boil a liquid like ammonia or a chlorofluorocarbon. The boiling of the liquids results in high pressure vapors which are used to turn turbines of a generator and produce electricity. The water at the deeper ocean is colder and is pumped to cool the used vapors and then to convert them again into a liquid. This process is repeated over and over again. The team already launch a pilot project Eco Village which is a success. Hoping for more similar project soon.