May 17, 2020

Japan Nuclear Plant to Build Anti-Tsunami Seawall

chubu electric
Hamaoka
nuclear power plant
Fukushima
Admin
2 min
Chubu Electric is to build a giant anti-tsunami seawall around its Hamaoka nuclear plant
In an attempt to protect its assets from a Fukushima-style meltdown, Chubu Electric Power Co. is constructing an 18-meter (60 foot) anti-tsunami seawa...

 

In an attempt to protect its assets from a Fukushima-style meltdown, Chubu Electric Power Co. is constructing an 18-meter (60 foot) anti-tsunami seawall around its Hamaoka nuclear plant.  The plant is reportedly near a fault line that may be vulnerable to future earthquakes and tsunamis.

The decision to build the wall came following the Japanese government’s forced shutdown of the plant in order to implement disaster mitigation measures. 

Representatives from Chubu Electric say the seawall and other safety measures should protect the plant from a tsunami of the same magnitude as that which crippled the Fukushima nuclear plant.

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The plant sits on the Pacific coast in the Tokai region.  Seismologists claim that a major earthquake is overdue in the area.  Anti-nuclear protestors claim that the area, where two major continental plates meet, is the most disaster prone area in all of Japan, and having an operating nuclear facility is extremely dangerous, seawall or no seawall.

Chubu Electric plans to spend approximately 100 billion yen ($1.3 billion) on the wall, flooding prevention measures, and cooling system safeguards.  The wall will stretch an entire mile (1.6 kilometers).

The Hamaoka plant accounts for 12 percent of Chubu Electric’s energy portfolio and serves as the energy provider for much of Japan’s industrial sector, including numerous Toyota manufacturing facilities. 

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Jul 30, 2021

Major move forward for UK’s nascent marine energy sector

marineenergy
renewableenergy
tidalturbine
Sustainability
3 min
The UK’s nascent marine energy sector starts exporting electricity to the grid as the most powerful tidal turbine in the world begins to generate power

Although the industry is small and the technologies are limited, marine-based energy systems look to be taking off as “the world’s most powerful tidal turbine” begins grid-connected power generation at the European Marine Energy Centre

At around 74 metres long, the turbine single-handedly holds the potential to supply the annual electricity demand to approximately 2,000 homes within the UK and offset 2,200 tonnes of CO2 per year.

Orbital Marine Power, a privately held Scottish-based company, announced the turbine is set to operate for around 15 years in the waters surrounding Orkney, Scotland, where the 2-megawatt O2 turbine weighing around 680 metric tons will be linked to a local on-land electricity network via a subsea cable. 

How optimistic is the outlook for the UK’s turbine bid?

Described as a “major milestone for O2” by CEO of Orbital Marine Power Andrew Scott, the turbine will also supply additional power to generate ‘green hydrogen’ through the use of a land-based electrolyser in the hopes it will demonstrate the “decarbonisation of wider energy requirements.” 

“Our vision is that this project is the trigger to the harnessing of tidal stream resources around the world to play a role in tackling climate change whilst creating a new, low-carbon industrial sector,” says Scott in a statement. 

The Scottish Government has awarded £3.4 million through the Saltire Tidal Energy Challenge Fund to support the project’s construction, while public lenders also contributed to the financial requirements of the tidal turbine through the ethical investment platform Abundance Investment.

“The deployment of Orbital Marine Power’s O2, the world’s most powerful tidal turbine, is a proud moment for Scotland and a significant milestone in our journey to net zero,” says Michael Matheson, the Cabinet Secretary for Net-Zero, Energy and Transport for the Scottish Government. 

“With our abundant natural resources, expertise and ambition, Scotland is ideally placed to harness the enormous global market for marine energy whilst helping deliver a net-zero economy.

“That’s why the Scottish Government has consistently supported the marine energy sector for over 10 years.”

However, Orbital Marine CEO Scott believes there’s potential to commercialise the technology being used in the project with the prospect of working towards more efficient and advanced marine energy projects in the future. 

We believe pioneering our vision in the UK can deliver on a broad spectrum of political initiatives across net-zero, levelling up and building back better at the same time as demonstrating global leadership in the area of low carbon innovation that is essential to creating a more sustainable future for the generations to come.” 

The UK’s growing marine energy endeavours

This latest tidal turbine project isn’t a first for marine energy in the UK. The Port of London Authority permitted the River Thames to become a temporary home for trials into tidal energy technology and, more recently, a research project spanning the course of a year is set to focus on the potential tidal, wave, and floating wind technology holds for the future efficiency of renewable energy. The research is due to take place off of the Southwest coast of England on the Isles of Scilly

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