E3C - Cyber Security Task Group The UK Energy Emergencies Executive (E3) is a UK government committee run by the department of Business Energy and Industrial Strategy (BEIS). The E3 provides assurance to Ministers on energy resilience and preparedness and sponsors a key forum sub-committee (E3C) to assess risk and promote delivery on security and resilience improvement programmes. The committee operates through seven Task Groups of which one is the Cyber Security Task Group (E3CC).