May 17, 2020

Power Restored after Massive Blackout in Southwest

Energy
Digital
news
blackout
Admin
2 min
694,000 customers were left without power in the American southwest after a massive blackout Thursday.  Apparently one man to blame.
Energy Digitals corporate headquarters and about 694,000 other energy customers lost power yesterday as San Diego, California, Yuma, Arizona and parts...

Energy Digital’s corporate headquarters and about 694,000 other energy customers lost power yesterday as San Diego, California, Yuma, Arizona and parts of Mexico experienced a massive blackout.  While it was certainly an unexpected surprise to leave work early, questions loomed in everyone’s minds as to the cause of the blackout.  They are not uncommon in the hot southwest, especially as energy-sucking air conditioners blast during the scorching summer heat.  However, with power resumed relatively quickly, it has come to light that the outage may have been caused by a single man, leading this writer to question the security of the entire grid system.

According to San Diego Gas & Electric (SDG&E), power was restored throughout most of the blackout area by 2:45 a.m., just 11 hours after the outage had occurred.  The San Diego Police Department reported no major disturbances during the blackout.

When word had spread via still functioning cell phones that the blackout wasn’t just isolated to San Diego, but stretched as far north as Orange County and as far east as Arizona, speculation as to its cause ran wild.  Was this the grid-frying X-class solar flare astronomers have been warning us about?  Was it just another rolling blackout caused by excessive energy use during a heat wave?  No… it was a single man and his coworkers that are reportedly responsible for the blackout.

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According to Arizona Public Service Co., the outage occurred when an electrical worker removed a piece of monitoring equipment at a power substation in southwest Arizona.  Apparently, as workers tried to rectify the isolated problem, it only exacerbated the issue. 

This raises the question of why this vast grid system, which reaches across state and international borders, is capable of being shut down from a single point.  Considering America’s heightened security level as the 10th anniversary of 9/11 approaches, one would assume that the electrical grid of all things would be more robust.  Regardless of the fact that power companies were able to restore power relatively quickly, the blackout was still enough to bring businesses to a screeching halt.  It seems to me that a little more investment needs to be made in upgrading the grid so an isolated incident remains just that… isolated, instead of spreading and affecting hundreds of thousands of people. 

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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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