Methods for notifying, in the event of a power outage, planned maintenance activity, a plurality of stakeholders of an enterprise infrastructure. The enterprise infrastructure may include components and relationships between components. The components may include data centers, data center components, applications, application components, and any other suitable components. The relationships may include relationships between data centers and data center components, relationships between data center components and applications, relationships between applications and application components, relationships between applications and stakeholders. Methods may receive power outage information at an impact notification center. Methods may determine the effect of the power outage on remaining components of the enterprise infrastructure and based on the determination, identify affected components. Methods may notify stakeholders of the power outage, identify service components which might get impacted and perform impact analysis and capacity planning in case of any disaster event where a data center and/or location is impacted.