Thanks for the VPN link. >They might be relatively harmless in isolation, but it could be really harmful if an attacker could compromise a dozen of these small

Thanks for the VPN link. >They might be relatively harmless in isolation, but it could be really harmful if an attacker could compromise a dozen of these small plants and disable or destroy them at the same time so there's less reserve capacity in the grid to pick up the slack when you launch your main attack. I suppose it depends on what is considered a small power plant. I would say anything less than 20MW is small, greater than 30 MW is medium, and greater than 100 MW is large. Simultaneously tripping a dozen 20 MW power plants would result in a loss of 240 MW of generation, about the same as 2 large units. There is 258,000 MW of nameplate generation on the western north american grid and a peak load of about 150,000 MW. The link below [0] shows that transmission level operators are looking at 1000's of MW of lost generation to have a measurable impact on the grid but losing that amount of generation causes operational headaches and not automatically an outage. [0]: https://www.wecc.org/Reliability/2013-10%20WECC%20JSIS%20-%20Frequency%20Response%20in%20Western%20Interconnection.pdf https://www.wecc.org/Reliability/2013-10%20WECC%20JSIS%20-%2...