I was doing the same thing yesterday evening and summarised my clumsy findings in a couple of posts on here. Natalie's work is much helpful and thorough. Her tweeting also goes beyond the 2013 power surge issue and looks at KCTMO's general performance with regard to Grenfell Tower.
If digging for information on the power surge issue, a difficulty is that the KCTMO minutes on their website only go back to the November 2013 meeting which is covered in the minutes published in January 2014. The power surges took place in May 2013. In other words, there will be one or two KCTMO meetings which took place between May 2013 and October 2013 which aren't available on the KCTMO site but which will undoubtedly have more info on the then more current power surge issue.
Having said that, there is another half-buried source of useful information here:
RBKC Committees > Home > Housing and Property Scrutiny Committee.
These are the meeting minutes for the RBKCC Housing and Property Scrutiny Committee. They start in July 2013 and cover the power surge issue in more detail. That link was difficult to find, it has much more info on the power surge issue and Natalie hasn't referred to it in any of her posts so I doubt if she has seen it. I don't Twitter or Facebook so would be extremely grateful if you could try to make her aware of it.
If anyone is still reading this post then my summary of the power surge issue is as follows... several surges took place in May 2013, 45 residents were affected by damage to appliances within their flats, a fault with an incoming mains cable was discovered and fixed but the even one and a half months later (July 2013) the Housing and Property Scrutiny Committee admit they aren't sure if the primary source of the problem had been rectified, KCTMO advised the affected residents to make claims on their own contents insurance policies but also seemingly made a claim on the KCTMO policy [Casual Observer thinks that's illegal but never mind], 25 of the 45 residents did make a claim via the KCTMO policy with Zurich Insurance but Zurich Insurance refused to pay out claiming KCTMO had done what could be reasonably expected of them to maintain the electrics in good order. There is also mention of more electric work being scheduled for later that July.
In other words, we know that RBKC and KCTMO are cunts but we can add Zurich Insurance to the list as well.
Fun fact not really related to this post: Ian Bone used to live in Grenfell Tower