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 three-stage warning system, and UCSD will relay any warnings to the campus community.

Please note that 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:

• 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.)
• What you should do: Save and secure all sensitive work immediately. (You may not receive sufficient notice between Stage 2 and Stage 3 alerts.)

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

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.

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Other energy conservation information:

• How You Can Help Promote Sustainability
• What to Do During a Rolling Blackout

If you have any questions or concerns, contact John Dilliott, campus energy manager, (858) 822-2807.