July 5, 2022

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Technician’s basic mistake could have shut down Koeberg’s only operating unit



Eskom's Koeberg Power Station. Picture: Eskom


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Eskom’s Koeberg Power Station. Photograph: Eskom

It can be emerged that the only remaining operating device at Koeberg Nuclear Electric power Station virtually experienced to be shut down throughout the final round of load shedding.

A person who seems to be a technician unintentionally reduce a valve on Unit 1, in its place of the exact valve on Device 2.

Device 2 is the reactor now shut down for scheduled maintenance.

The incident was analysed in a report posted in the internal Koeberg e-newsletter “Shutdown Moments”.

Earlier this thirty day period, Eskom declared it was delaying some of the lifestyle-extending upkeep at Koeberg.

Connected: ‘Eskom doubles Koeberg shutdown period – posing large loadshedding risk’

What it did not clarify was the result in of repeated delays, writes Sasha Planting in Daily Maverick.

“These integrated just one contractor walking off-web site, and French lover Framatome, which is developing the six steam turbines that will switch the aged types, complaining about basic safety concerns on web-site.”

Bruce Whitfield receives reaction from electrical power analyst Chris Yelland, MD of EE Business Intelligence

We only know what we can browse in a relatively obscure publication termed the Shutdown Times. Funnily ample, I did a bit of digging… and identified out that this is in actuality an formal Eskom publication that is released everyday throughout the shutdown of nuclear reactors at Koeberg.

Chris Yelland, Vitality analyst and MD – EE Company Intelligence

I’m not absolutely sure what reducing a valve signifies… but as an alternative of cutting the valve on the era unit that was shut down, they slash the valve on the generation unit that was even now running!… And this seemingly nearly precipitated a shutdown of the working device at Koeberg… and is explained in this e-newsletter as a really critical incident.

Chris Yelland, Electrical power analyst and MD – EE Small business Intelligence

The “Shutdown Times” claims the mistake was finally determined and labeled as “sizeable”.

“… simply because it experienced the possible to amongst other threats, drain the accumulator of the Basic safety Injection Program tank 1 RIS 002 BA… It could have experienced devastating repercussions.”

Koeberg purchased a perform stoppage to consist of the circumstance.

It virtually shut down the total plant simply because fifty percent the plant is shut down… The other 50 percent could have been shut down as a consequence of this incident which could have taken 1,800MW in overall off the grid at a time when we had load shedding.

Chris Yelland, Vitality analyst and MD – EE Small business Intelligence

To insert to this, it was the 2nd these kinds of incident in the course of that specific electrical power outage according to the newsletter.

What also alarms Yelland is that this piece of information and facts will come out by means of the media, in its place of Eskom keeping the public knowledgeable.

Listen to the power expert’s reaction in the audio clip down below: