PWP's power system is part of the statewide grid operated by the California Independent System Operator (CAISO). As part of our agreement with the CAISO, PWP's power resources are pooled with those from all other CAISO participants. This arrangement provides PWP with reliable backup power when our power sources have an outage. It also requires PWP to participate in rotating outages (AKA "rolling blackouts") when they are necessary to maintain the reliability of regional grid, even if all of PWP's generation resources are available and operating.
While PWP strives to keep customers informed about the possibility of rolling blackouts, system conditions can change quickly and unpredictably. Furthermore, we do not publicly announce the specific location or boundaries of current or expected outages for your safety and security purposes.
The following infomration is updated frequently by the CAISO, and you may subscribe to CAISO notifications if you wish.
For energy conservation tips, visit PWP's "Save Energy" page
Visit the CAISO web site for more informatiohn on CAISO Alerts, Warnings, and Emergencies.