Where is tidal energy used?

Where is tidal energy used?
Credit: Dmytro Bosnak

Tidal energy, a form of renewable energy harnessed from the natural movement of tides, is an increasingly important and sustainable method for generating electricity. This green technology relies on the gravitational pull of the moon and the sun, resulting in the rise and fall of sea levels. As tidal energy gains traction around the world, it is essential to understand where it is used and how countries are developing their infrastructure to support this clean energy source.

The United Kingdom: Leading the Way in Tidal Energy


The United Kingdom (UK) is at the forefront of tidal energy development, with several operational and planned tidal energy projects. The UK’s extensive coastline and favorable tidal conditions make it an ideal location for harnessing tidal power. Some of the most significant projects include:

The MeyGen Project, Scotland: This project, located in the Pentland Firth, is currently the largest tidal stream energy project in the world. It began operations in 2016 and, once fully completed, is expected to have a capacity of 398 MW, generating enough electricity to power approximately 175,000 homes.

The Swansea Bay Tidal Lagoon, Wales: This ambitious project, which is currently in the planning phase, aims to generate electricity through a 320 MW tidal lagoon. Once completed, the lagoon is expected to provide electricity to more than 150,000 homes.

France: Pioneering Tidal Energy in Europe


France has a long history of embracing tidal energy, with the Rance Tidal Power Station located in Brittany being the first tidal power plant in the world. Operational since 1966, it has a capacity of 240 MW, making it one of the largest tidal power stations globally. In recent years, France has continued to advance its tidal energy sector, with notable projects such as:

The Normandie Hydro Project: A collaboration between Naval Energies and EDF Energies Nouvelles, this project plans to install seven tidal turbines off the coast of Normandy. Once completed, the project is expected to have a capacity of 14 MW.

The Paimpol-Bréhat Tidal Farm: Located in the English Channel, this pilot project includes two 1 MW tidal turbines, generating electricity for around 1,000 households.

Canada: Harnessing the Bay of Fundy


Canada is another country heavily invested in tidal energy, with the Bay of Fundy being a prime location for harnessing tidal power. The Bay is known for having the world’s highest tides, with water levels rising and falling up to 16 meters daily. Some notable projects in the area include:

The Fundy Ocean Research Center for Energy (FORCE): FORCE is a non-profit organization that operates a test site for tidal energy technology in the Bay of Fundy. It supports the development and testing of new tidal energy solutions, providing essential research and data to the industry.

The Cape Sharp Tidal Venture: A joint initiative between Emera and OpenHydro, the Cape Sharp Tidal Venture installed two 2 MW turbines in the Bay of Fundy in 2016. Unfortunately, the project faced technical issues and was put on hold in 2018.

China: Rapid Growth and Potential


China is an emerging leader in the tidal energy sector, with several projects underway. China’s long coastline and significant tidal resources provide ample opportunities for tidal energy development. Some noteworthy projects include:

The Jiangxia Tidal Power Station: Operational since 1980, the Jiangxia Tidal Power Station is located in Zhejiang Province and has a capacity of 3.9 MW. It was the first tidal power station in

China and has paved the way for further development in the country.

The Dalian Zhangzidao Fishery Group Tidal Power Station: Located in Liaoning Province, this project was completed in 2015 with a total installed capacity of 1.5 MW. The power station serves as an essential demonstration project for further tidal energy development in China.

The Dynamic Tidal Power (DTP) Project: DTP is an innovative concept in which a long T-shaped dam is built perpendicular to the coast. The dam captures the energy generated by the water’s natural movement along the coast. Although not yet in operation, China is actively exploring the potential of DTP technology and has conducted feasibility studies for several coastal locations.

South Korea: A Promising Future for Tidal Energy


South Korea is another Asian country investing in tidal energy, with several projects in development. With a coastline of over 2,400 km and suitable tidal conditions, South Korea has the potential to become a significant player in the tidal energy market. Some notable projects include:

The Sihwa Lake Tidal Power Station: Operational since 2011, this power station has a capacity of 254 MW, making it the largest tidal power station in the world. The Sihwa Lake project is a prime example of how tidal energy can be integrated into existing infrastructure, as it utilizes an existing seawall for power generation.

The Uldolmok Tidal Power Station: This smaller-scale tidal energy project was completed in 2009 and has a capacity of 1 MW. The power station was built as a pilot project to test and demonstrate the feasibility of tidal energy in South Korea.

The United States: Tidal Energy in Development


While the United States (US) has not yet built any large-scale tidal energy projects, it is actively exploring the potential of this renewable energy source. The US has a vast coastline with significant tidal resources, particularly in areas such as Alaska and Maine. Some key projects and initiatives include:

The Maine Tidal Energy Project: Led by the Ocean Renewable Power Company (ORPC), this project aims to develop tidal energy technology in the waters of Cobscook Bay, Maine. In 2012, the project’s first phase, the Cobscook Bay Tidal Energy Project, became the first grid-connected tidal energy project in the US.

The Cook Inlet Tidal Energy Project: Located in Alaska, this project is in the research and development phase, with the aim to harness the strong tidal currents in the Cook Inlet region.

Conclusion


Tidal energy is a promising renewable energy source with various projects in operation and development worldwide. The United Kingdom, France, Canada, China, and South Korea are some of the key players in the tidal energy sector. The United States, while not yet home to any large-scale projects, is actively exploring the potential of tidal energy.

As the world continues to face the challenges of climate change and depleting fossil fuel reserves, the development of renewable energy sources such as tidal energy becomes increasingly critical. By understanding where tidal energy is being used and how countries are investing in this technology, we can gain insights into the future of sustainable energy and work towards a cleaner, greener planet.

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