SDE Sea Wave

Last updated

SDE Sea Wave is a type of renewable energy power plant technology utilizing sea wave energy for the production of electricity.

Renewable energy energy that is collected from renewable resources

Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat. Renewable energy often provides energy in four important areas: electricity generation, air and water heating/cooling, transportation, and rural (off-grid) energy services.

Electricity Physical phenomena associated with the presence and flow of electric charge

Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. In early days, electricity was considered as being unrelated to magnetism. Later on, many experimental results and the development of Maxwell's equations indicated that both electricity and magnetism are from a single phenomenon: electromagnetism. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others.

Contents

Description

The device is made of horizontal buoys, one end of which is attached to a breakwater, or on some other sea-based structure, which create a vertical motion, according to the frequency of the sea wave. The buoys' movement presses on a hydraulic liquid, which is regulated by systems that convert the energy into circular systems. These systems operate an electricity generator and the process culminates in electricity production. The system's innovation is based on its self-correcting mechanism whereby, should a large wave overwhelm the buoy, it would flip over and then "wait" for a lower tide to flip back. The system's high survivability capability is based on the fact that only 10% of its components are submerged in sea water. [1]

Breakwater (structure) Structure constructed on coasts as part of coastal management or to protect an anchorage

Breakwaters are structures constructed near the coasts as part of coastal management or to protect an anchorage from the effects of both weather and longshore drift.

Tide The daily, twice daily or similar rise and fall of the sea.

Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun, and the rotation of the Earth.

Developer

The device is developed by Israeli company S.D.E. Energy LTD. S.D.E. has built and tested twelve different models of its system, culminating with a full-scale model that operated and tested in Jaffa Port near Tel Aviv in Israel and produced 40 kW for a period of a year. [2]

Israel country in the Middle East

Israel, also known as the State of Israel, is a country in Western Asia, located on the southeastern shore of the Mediterranean Sea and the northern shore of the Red Sea. It has land borders with Lebanon to the north, Syria to the northeast, Jordan on the east, the Palestinian territories of the West Bank and Gaza Strip to the east and west, respectively, and Egypt to the southwest. The country contains geographically diverse features within its relatively small area. Israel's economic and technological center is Tel Aviv, while its seat of government and proclaimed capital is Jerusalem, although the state's sovereignty over Jerusalem has only partial recognition.

Jaffa Old part of the city of Tel Aviv-Yafo

Jaffa, in Hebrew Yafo and in Arabic Yaffa and also called Japho or Joppa, the southern and oldest part of Tel Aviv-Yafo, is an ancient port city in Israel. Jaffa is famous for its association with the biblical stories of Jonah, Solomon and Saint Peter as well as the mythological story of Andromeda and Perseus, and later for its oranges.

In March, 2010, S.D.E. is looking at building a 250 kW model also in the port of Jaffa near Tel Aviv, and planning to construct a 100 MW power plant as one of its projects in the islands of Kosrae, Micronesia and Zanzibar.

Kosrae State in Federated States of Micronesia

Kosrae, formerly known as Kusaie or Strong's Island, is an island in Federated States of Micronesia. The State of Kosrae is one of the four states of the Federated States of Micronesia, and includes the main island of Kosrae and a few nearby islands and islets, the most significant of which is inhabited Lelu Island.

Micronesia Subregion of Oceania

Micronesia is a subregion of Oceania, composed of thousands of small islands in the western Pacific Ocean. It has a close shared cultural history with two other island regions: Polynesia to the east and Island Melanesia to the south; as well as the wider Austronesian peoples.

Zanzibar Semi-autonomous part of Tanzania

Zanzibar is a semi-autonomous region of Tanzania. It is composed of the Zanzibar Archipelago in the Indian Ocean, 25–50 kilometres (16–31 mi) off the coast of the mainland, and consists of many small islands and two large ones: Unguja and Pemba Island. The capital is Zanzibar City, located on the island of Unguja. Its historic centre is Stone Town, which is a World Heritage Site.

Related Research Articles

Tel Aviv City in Israel

Tel Aviv-Yafo, often referred to as just Tel Aviv, is the most populous city in the largest metropolitan area of Israel. Located on the country's Mediterranean coastline and with a population of 451,523, it is the economic and technological center of the country. If East Jerusalem is considered part of Israel, Tel Aviv is the country's second most populous city after Jerusalem; if not, Tel Aviv is the most populous city before West Jerusalem.

Wave power Transport of energy by wind waves, and the capture of that energy to do useful work

Wave power is the capture of energy of wind waves to do useful work – for example, electricity generation, water desalination, or pumping water. A machine that exploits wave power is a wave energy converter (WEC).

Sde Dov Airport Airport within Tel-Aviv, Israel

Sde Dov Airport, also known as Dov Hoz Airport was an airport in Tel Aviv, Israel that mainly handled scheduled domestic flights to Eilat, northern Israel, and the Golan Heights, as well as having served as a base for the Israeli Air Force (IAF). It was the largest airport in Tel Aviv proper, and the second largest in the area, after Ben Gurion Airport on the outskirts of Lod. The airport opened in 1938 and was named after Dov Hoz, one of the pioneers of Jewish aviation. It ceased operations on 30 June 2019 after a controversial, long-delayed plan came into effect to close the airport in order to build high-end residential apartments on its valuable beachfront property. Commercial flights were moved to Ben Gurion Airport and military flights were moved to other IAF bases. The airport was a focus city for Arkia Israel Airlines and Israir Airlines.

Israel Electric Corporation

Israel Electric Corporation is the largest supplier of electrical power in Israel. The IEC builds, maintains, and operates power generation stations, sub-stations, as well as transmission and distribution networks.

Wave farm installment of one or several wave power devices in one place

A wave farm – or wave power farm or wave energy park – is a collection of machines in the same location and used for the generation of wave power electricity. Wave farms can be either offshore or nearshore, with the former the most promising for the production of large quantities of electricity for the grid. The first wave farm was constructed in Portugal, the Aguçadoura Wave Farm, consisting of three Pelamis machines. The world's largest is planned for Scotland.

CETO

CETO is a wave-energy technology that converts kinetic energy from ocean swell into electrical power and directly desalinates freshwater through reverse osmosis. The technology was developed and tested onshore and offshore in Fremantle, Western Australia. In early 2015 a CETO 5 production installation was commissioned and connected to the grid. As of January 2016 all the electricity generated is being purchased to contribute towards the power requirements of HMAS Stirling naval base at Garden Island, Western Australia. Some of the energy will also be used directly to desalinate water.

The European Marine Energy Centre (EMEC) Ltd is a UKAS accredited test and research centre focusing on wave and tidal power development based in the Orkney Islands, UK. The Centre provides developers with the opportunity to test full-scale grid-connected prototype devices in unrivalled wave and tidal conditions. The operations are spread over five sites:

Transport in Tel Aviv

The Tel Aviv transportation system is seen as the hub of the Israeli transport network in terms of road, rail, and air transport. The Israeli road network partly centers on the city, with some of the country's largest highways passing through or running to the city. The city forms a major part of the country's rail network, whilst Ben Gurion International Airport located near the city is the country's largest airport. There is also a strong public transport system within the city, based primarily on bus transportation.

Wave power in Australia is being developed as the country has a long and largely deep-water coastline. It is one of several regions of the world where wave power projects are being considered.

Tel Aviv Promenade

Tel Aviv Promenade runs along the Mediterranean seashore in Tel Aviv, Israel.

Ocean Power Technologies (O.P.T.) is a US-owned renewable energy company, providing power generation devices, services and related equipment for the extraction of energy from ocean waves. The company's PowerBuoy technology is theoretically scalable to hundreds of megawatts and the generated energy from Wave Power can be supplied to the grid via submarine cables. Several projects were undertaken around the world, but the economic viability of the theoretical concept has been problematic.

Evopod

Evopod is a unique tidal energy device being developed by a UK-based company Oceanflow Energy Ltd for generating electricity from tidal streams and ocean currents. It can operate in exposed deep water sites where severe wind and waves also make up the environment.

Marine energy or marine power refers to the energy carried by ocean waves, tides, salinity, and ocean temperature differences. The movement of water in the world’s oceans creates a vast store of kinetic energy, or energy in motion. Some of this energy can be harnessed to generate electricity to power homes, transport and industries.

Old Jaffa Historical part of the Israeli city of Jaffa

The Old City of Jaffa is the historical part of the Israeli city of Jaffa. A neighborhood with art galleries, restaurants, theaters, museums, and nightclubs, it is one of Tel Aviv's main tourist attractions. Jaffa is the southwest district of the Tel Aviv–Jaffa municipality. Old Jaffa is located in the northwest of Jaffa, on a hill along the Mediterranean Sea. Technically the hill of Old Jaffa is the continental north end of a kurkar ridge, further alleviated through fortifications with layers of rubble inside.

Reading Light lighthouse in Israel

Reading Light, also known as Tell Qudadi Light, HaYarkon Light, Auja Light and Tel Aviv Light, is an inactive lighthouse in Tel Aviv, Israel. It is located near the beach on the north side of the Yarkon River estuary, on the foot of the Tel Aviv south breakwater, next to the Tel Aviv Port and the Levant Fair buildings area. It takes its name from the Reading Power Station.

Ormat Technologies company

Ormat Technologies Inc. is a provider of alternative and renewable energy technology based in Reno, Nevada. The company built over 150 power plants and installed over 2,000 MW. As of February 2016 Ormat owns and operates 697 MW of geothermal and recovered energy based power plants. The company's shares have been listed on the Tel Aviv Stock Exchange since 1991, and the New York Stock Exchange since 2004. The company's main production facilities are based in Yavne, Israel.

Enlight Renewable Energy is a publicly traded company, headquartered in Israel, that builds and operates solar and wind power facilities. Its shares are traded on the Tel Aviv Stock Exchange.

Oscillating water columns (OWCs) are a type of Wave Energy Converter (WEC) that harness energy from the oscillation of the seawater inside a chamber or hollow caused by the action of waves. OWCs have shown promise as a renewable energy source with low environmental impact. Because of this, multiple companies have been working to design increasingly efficient OWC models. OWC are devices with a semi-submerged chamber or hollow open to the sea below, keeping a trapped air pocket above a water column. Waves force the column to act like a piston, moving up and down, forcing the air out of the chamber and back into it. This continuous movement force a bidirectional stream of high-velocity air, which is channelled through a Power-Take-Off (PTO). The PTO system converts the airflow into energy. In models that convert airflow to electricity, the PTO system consists of a bidirectional turbine. This means that the turbine always spins the same direction regardless of the direction of airflow, allowing for energy to be continuously generated. Both the collecting chamber and PTO systems will be explained further under "Basic OWC Components."

Located on the east side of Gibraltar, on a former World War II ammunition jetty, the Gibraltar Wave Farm is the first commercial, grid-connected wave energy power station in all of Europe. The project utilizes the devices of Eco Wave Power Ltd, an Israel-based wave energy company. The wave farm was initially launched with an estimated peak capacity of 100 kW in April 2016 and plans for expansion to 5 MW within the next years. The project is operating through a 25-year PPA between Eco Wave Power, the Government of Gibraltar, and the Gibraltar Electricity Authority. Upon completion, it is expected generate 15% of the total electricity consumption of Gibraltar. The project is funded, in part, by the 2014-2020 European Regional Development Fund, in order to put the country in line with the EU's renewable energy goal: 20% energy generated from renewable power by 2020. The project is also funded by private investment groups. As of February 2018, the Gibraltar Wave Farm accrued 15,000 grid connected hours, a new world record for wave energy plant.

References