If you don't know ISO, it stands for Independent System Operator, a term which is often used interchangeably with another acronym: RTO, or Regional Transmission Organization. In North America, these organizations are like referees and traffic cops, trying to keep the peace among utilities and ensure the smooth and reliable flow of appropriately priced electricity across multi-state regions.
It's good to see Security get such a prominent platform at a high profile industry event like this. Certainly a sign of the times. Ernie's slides will take you through the past, 2013/present and future of grid security, and though some of the info would clearly benefit from his accompanying narration, a lot of this works quite well as is. And if you really want the audio, then I'm sure Ernie will agree to come to you and do it again, as long as you treat him right. URLs below.
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Ernie Hayden deck
http://www.isoenergyconference.com/pdf/Ernie-Hayden-Keynote.pdf
Conference home page
http://www.isoenergyconference.com