Public Service Company of Colorado

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1) Report of events that led to controlled outages: date of occurrence February 18, 2006

Author

Pub. Date

2006.

Description

On February 18, 2006 Xcel Energy initiated rolling blackouts due to a power supply shortfall of nearly 400 megawatts on its electric power system. More than 371,000 Colorado electric service customers lost power for an average of more than 41 minutes. The Public Utilities Commission (PUC) asked Xcel Energy for a report on the cause of the outages, the length of time of the outages, and the poor communications the company provided to the people who...

2) Commitment log report to the Colorado Public Utilities Commission regarding the February 18, 2006 controlled outage event: docket no. 06I-118EG

Author

Public Service Company of Colorado

Pub. Date

2006.

Description

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On February 18, 2006 Xcel Energy initiated rolling blackouts due to a power supply shortfall of nearly 400 megawatts on its electric power system. More than 371,000 Colorado electric service customers lost power for an average of more than 41 minutes during subzero temperatures. This document contains the steps Public Service Company of Colorado plans to take to reduce the possibility of such an event happening again.