What to Expect During a Power Outage at Headquarters


You can prepare your library to serve patrons during a power outage by reading and downloading/ printing the files located in Teams.

What to Expect During a Power Outage at Headquarters

Public Computers

Public computers will not be affected by a power outage at headquarters and will continue to have internet access throughout power interruptions.  This is because of two reasons:

  • Unlike the staff computers, our public computers are not on the domain - the functionality of which is dependent on our servers at headquarters having power. 
  • The public computer’s internet connection is routed to bypass headquarters and communicate directly with our internet services provider, meaning that a power outage at headquarters no longer results in an internet outage for public computers.  

If there are connectivity issues with public computers during a power outage, they are abnormal and the TSI Department will address them on a case-by-case basis. 

Staff Computers

The NLLS domain is the tool that holds all staff member’s login information and authenticates that information as staff log into their desktop profiles and Polaris.  This tool is hosted on our servers at headquarters, and when there is a power outage the computers at Member Libraries are no longer able to authenticate with it, as they can’t find it. 

This results in two scenarios, which explains why some libraries continue to have internet on their staff computers during at outage, and some do not:

  1. Staff members are logged into their desktop profiles before an outage have already passed through the authentication needed during log in.  Therefore, they are able to continue using their computers through the duration of the outage, and continue accessing the internet. 
  2. Staff members who are not logged into their desktop profiles before an outage are stopped during login as the computer is not able to authenticate with the domain, resulting in the computer and internet not functioning during the power outage. 

If you find that a different scenario occurs during a power outage at headquarters, please reach out so that the TSI Department can investigate further. 


The Polaris desktop client will not function during a power outage, even if a staff member is able to access their desktop profile on a staff computer.  This again is due to the authentication needed with the domain; however, Polaris authenticates at greater intervals than our desktop profiles leading it to be unusable during a power outage.

In light of this, it is our strong recommendation to use LEAP during a power outage at headquarters.  Be sure to use the External / Off-line link, found below:


What is NLLS doing to alleviate the effects of power outages on Member Libraries?

Power outages at headquarters are frustrating, especially as they often come without warning and often don’t coincide with power outages of Member Libraries themselves.  Through our pursuit of the Network Enhancement Plan and firewall migration project, we’ve made huge strides in alleviating the effects of power outages by ensuring public computers are no longer affected during at outage and by ensuring internet access is continued after authenticated desktop logins. 


If you have any questions, contact the TSI Department at ask@nlls.ab.ca

  • Last Updated Oct 19, 2023
  • Views 36
  • Answered By Tim Kuelker

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