Moderately pleased to read this in the annual report of #tennet the huge Dutch/German electricity transport operator. "No cloud implementation for mission critical systems or applications". The report is on AWS tho: https://tennet-drupal.s3.eu-central-1.amazonaws.com/default/2026-03/Integrated%20Annual%20Report%20TenneT%20Holding%20B.V.%202025.pdf