Systems and methods for monitoring, managing, and testing power systems are disclosed. In various embodiments, a site server collects data from one or more generators, automatic transfer switches, sensors, and cameras at a site. The site server stores captured data and triggers alarm events when preselected limits are exceeded. The site server also enables users to configure, initiate, pause, resume, monitor, and abort scripted tests of the monitored entities. In some of these and other embodiments, an enterprise-wide server collects data from multiple site servers, makes the data available via a web-based or other client interface, and provides consolidated monitoring, alarm, test management, and management resources.