Alert rules defined by indicator, measurement point and limit, and the notification log they produce when measurements move out of range.
The Alert Rules module defines what is watched: for each measurement point and indicator you set a condition type and a limit, and assign the user who needs to know.
When a measurement crosses that limit, the rule creates an entry in Notifications, with the date, the load center and the measurement point where it happened. The main dashboard reflects those alerts too.
Each rule combines a measurement point, an indicator, a limit type and a value. The notifications it produces are listed with their context, marked as read, and exported to CSV.