The Nebraska Public Power District (NPPD) released the following statement on social media on Tuesday morning:
To maintain system reliability, we have just been informed by SPP that we need to do emergency coordinated interruptions of service.
These 30-minute interruptions of service occur in real-time, so we have very little, if any, notice as to where these interruptions will take place. This is done to prevent longer, uncontrolled outages.
If you experience a controlled outage, it should only last approximately 30 minutes.
NPPD is a member of the Southwest Power Pool (SPP), which is a regional transmission organization that ensures reliable supplies of electricity across its 14-state footprint.
SPP’s service area unexpectedly lost some generating units on Monday, which caused them to declare an energy emergency. SPP directed power utilities in 14 states to share in an effort to shed load (interrupt service to customers) due to lack of electricity to meet demand because of the cold temperatures.