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Re:What Happened in the UK Blackouts? by DanBC on Sunday September 01, 2019 @05:19AM (#20851310)
How many 9s do you want from the grid?

There are lots of reasons why hospitals lose power, which is why they all have backup generators.

Ipswich's backup generator had a faulty battery. This is nothing to do with the grid. This is entirely the fault of the hospital trust. Most of the hospital's backups worked.

https://www.ipswichstar.co.uk/news/ipswich-hospital-blackout...

> A spokeswoman said: "Our initial investigation has shown that at 4.52pm on Friday, August 9, we lost our electricity supply until 5pm. We have 11 generators at Ipswich Hospital and all of them worked immediately.

> "What we have found is that the battery which automatically operates one of the switch over systems from mains power to generator power was faulty despite being within its recommended life.

Here's the trust document talking about the new installation when it was put in.

http://www.ipswichhospital.nhs.uk/aboutourhospital/Documents...

> Electrical High Voltage Infrastructure was a critically important project to the Trust in providing a resilient high voltage electrical network to the hospital. Through a range of electrical projects, including the replacement and upgrading of outpatients generator ‘C’, the maternity generator project and the upgrading of the high voltage switchgear for the forthcoming biofuels project, this represented a total overall investment in excess of £2m. Virtually all the Trust’s electrical switchgear has now been improved and modernised. Along with the new backup generators the hospital is protected for years to come and a major significant risk to hospital has been dealt with.

Re:What Happened in the UK Blackouts? by mytailorisrich on Sunday September 01, 2019 @05:32AM (#20851351)
It's clear that there were issues at hospitals (as expected cynical me thinks, knowing British healthcare...) but the fact that key infrastructure lost power does points to issues at the grid level as well (because sites that lost power did so based on grid procedures).
Re:What Happened in the UK Blackouts? by Zenst on Sunday September 01, 2019 @05:46AM (#20851398)
When they cut the power to an area, they can't selectively keep isolated locations active unless they are isolated in that they operate upon their own spur. That is why Hospitals would be deemed critical and important not to cut out, they are handled by onsight failover power supply in the form of backup generators.

In this case, it was like asking somebody to be able to catch a ball, they say they are ready and yet fail to catch that ball when you thru it to them. Is that the fault of the person who throws the ball or the person that was not prepared to catch the ball when they said they could.

In this instance it falls into the infortunate situation, and from what I can tell, you can't lay blame onto anybody or party for the failure and it is just one of those things. Sure leasons will be learned, but from the grid procedure in this hospital case, there will be no change I can see that would be learned. However the Hospital will be learning from this and may have more frequent testing and checks of their failover, may make changes. So if blame is to be leveraged upon anybody - you could say it would be from the party that had to make changes. But in this instance, would that be fair. Hence I would call this unfortunate and whilst lessons will be learned, you can not lay blame out of those lessons all the time. However - if it happens again and those same mistakes transpire - then, maybe you have some grounds to lay some blame.

Re:What Happened in the UK Blackouts? by trebligdivad on Sunday September 01, 2019 @08:01AM (#20851816)
The actual report says that Ipswich hospital wasn't part of the load shedding; so it's not clear why the generators had to cut in in the first place yet.
Re:What Happened in the UK Blackouts? by generatorguy on Sunday September 01, 2019 @12:13PM (#20853027)
When the frequency is nosediving and below some threshold it is a good sign that you want to switch to your back up power immediately. Even if there isn’t ultimately a cut, it is bad quality power and a sign of system instability
Re:What Happened in the UK Blackouts? by mytailorisrich on Sunday September 01, 2019 @06:03AM (#20851443)
I'm sure that they will learn lessons that railways, hospitals, airports should perhaps not be the first to lose power, that trains should be able to restart quickly, and that generators should be comprehensively tested to respond to real situations, and it will be no-one's fault.

I fully agree with you that this is the likely outcome.