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Electrical Stage Alerts

Learn how to prepare for the 3 possible stages of electrical alerts.

Stay informed

Electricity alerts are possible during warm summer weather. The California Independent Systems Operator (ISO) and San Diego Gas & Electric (SDG&E) issue alerts through a 3-stage warning system, and UCSD will relay any warnings to the campus community.

  • ISO System Conditions: See today's outlook.
  • To receive instant energy alert notifications, subscribe to the "electricalstagealerts-l" mailing list.

Note: UCSD and Facilities Management have no control over statewide electrical emergencies. These emergencies are defined and controlled by the ISO and SDG&E.

Learn about what each stage means and the appropriate actions to take:

Note: If the ISO issues a rolling blackout, UCSD will receive only a 15-minute or shorter warning from SDG&E. Therefore, your actions during Stage 1 and Stage 2 alerts are crucial.

Stage 1 — Voluntary load reduction:

A shortfall in the electricity operating reserve is unavoidable or will likely occur within 2 hours.

  • What you should do: Turn off all unnecessary lights and equipment (such as fans, coffee machines, microwaves). If possible, do not start sensitive work.

Stage 2 — Forced load reduction:

A serious shortfall in the operating reserve (bringing it to less than 5% of normal levels) is unavoidable or will likely occur within 2 hours. (UCSD will engage a global load-shedding program to reduce air-conditioning loads in non-critical areas.)

Stage 3 — Blackout is imminent:

A critical shortfall in the operating reserve (bringing it to less than 1½% of normal levels) is unavoidable or will likely occur within 2 hours. Without significant ISO intervention, the electric system could collapse. Rolling blackouts will occur as required to keep the operating reserve above 1½%. Again, if the ISO issues a rolling blackout, UCSD will receive only a 15-minute or shorter warning from SDG&E.

  • What you should do: Save and secure all sensitive work — this is your last chance to do so. Reduce electricity consumption wherever possible.

Other energy conservation information:

Note: This page has a friendly link that's easy to remember: http://blink.ucsd.edu/go/energy