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The original item was published from 7/18/2022 9:45:33 AM to 7/18/2022 10:31:34 AM.

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Latest City of Siloam Springs News

Posted on: July 18, 2022

[ARCHIVED] Excessive Heath Creates Impacts on the Grid and Southwest Power Pool

map of Southwest Power Pool customer area 14 states

From Southwest Power Pool: CURRENT ELECTRICAL GRID CONDITIONS; Current Grid Conditions (Last updated July 15, 2022, at 10:27 a.m. Central Time)

Southwest Power Pool (SPP) is issuing a new Conservative Operations Advisory for its entire 14-state balancing authority (BA) area effective Monday, July 18 from 12 p.m. through 10 p.m. central time (CT). The same region is currently under previously announced Resource and Conservative Operations Advisories that are expected to expire as scheduled tonight (Friday, July 15) at 10 p.m. CT. No advisories or alerts are currently in effect between July 15 at 10 p.m. and July 18 at noon.

Conservative Operations Advisories do not require the public to conserve energy. SPP issues Conservative Operations Advisories to signal to utilities that own and operate transmission and generation facilities that there is a need to operate the bulk power system more conservatively to mitigate risks associated with weather, environmental, operational, terrorist, cyber or other events. SPP has declared this advisory because of high demand for electricity across its region and the availability of generation resources.

Generation and transmission operators have been provided instructions on applicable procedures, including to report any limitations, fuel shortages or concerns. SPP will send additional information if necessary or as conditions change.

The following chart illustrates the relative severity of the Conservative Operations Advisory in effect Monday, July 18 from noon until 10 p.m. CT.

Descriptions of common reliability events are provided below in increasing order of severity:


Advisories raise awareness and do not require general audiences to take action. SPP member utilities should follow applicable procedures. Energy Emergency Alerts indicate all available generation has been committed to meet region-wide demand. As conditions worsen, voluntary conservation or service interruptions may be necessary to prevent uncontrolled outages.


Normal Operations: SPP has enough generation to meet demand and available reserves, and it foresees no extreme or abnormal threats to reliability.


Weather Advisory: Declared when extreme weather is expected in SPP’s reliability coordination service territory.


Resource Advisory:  Declared when severe weather conditions, significant outages, wind-forecast uncertainty and/or load-forecast uncertainty are expected in SPP’s balancing authority area.


Conservative Operations Advisory:  Declared when SPP determines there is a need to operate its system conservatively based on weather, environmental, operational, terrorist, cyber or other events.


Energy Emergency Alert Level 1:  Declared when all available resources have been committed to meet obligations, and SPP is at risk of not meeting required operating reserves.


Energy Emergency Alert Level 2:  Declared when SPP can no longer provide expected energy requirements, or when SPP foresees or has implemented procedures up to, but excluding, service interruptions to maintain regional reliability.


Energy Emergency Alert Level 3:  At this level, SPP is utilizing operating reserves such that it is carrying reserves below the required minimum and has initiated assistance through its Reserve Sharing Group. SPP foresees or has implemented firm load obligation interruption. Before requesting an EEA 3, SPP will have already provided the appropriate internal notifications to its Market Participants.


Restoration Event:  Defined as a major or catastrophic grid outage which could be a total or partial regional blackout, island situation or system separation.


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