Wholesale: Products & Services

Collocation - Direct Current (DC) Power Reduction Overview – V2.0

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Direct Current (DC) Power Reduction will allow you to eliminate or reduce the value of multiple DC power feeds or reduce the value of a single feed to 20amps.

Terms and Conditions

You must have terms and conditions for DC power reduction in your Interconnection Agreement.  If terms and conditions for DC power reduction are not in your Interconnection Agreement, an amendment must be negotiated before an application for this service may be submitted.

If you want to reduce or restore the amount of power on any power feed associated with your Collocation, this work will be treated as a DC Power Reduction request. Further if you want to deactivate a non primary power feed, effectively reducing the power amount on that feed to zero and have no plan to use the power feed in the future, this work will be treated as a DC Power Reduction request.

CenturyLink™ will allow you to reserve a fuse or breaker position on the power board or Battery Distribution Fuse Board (BDFB) for a recurring maintenance charge when reducing a multiple feed to zero. The monthly maintenance charge does not reserve the excess amount of power but does hold the power cabling and fuse position in place for your future power augment requests.

You may only submit applications for DC Power Reduction for Collocation sites that have been previously accepted by you. DC Power reductions to sites under construction or for sites not previously accepted by you will follow standard change or augment procedures and rates.

Before submitting a DC power reduction application, your financial obligations must be current, with the exception of formally disputed charges.  Your financial obligations include your payment of 100% of all non-recurring quoted charges for the collocation site and all applicable monthly recurring charges that are more than 30 calendar days past due.

When eliminating a secondary feed, you may purchase the option to have the power cable and fuse position held for your future use.  You will be required to pay a monthly Power Maintenance Charge until such time as you notify CenturyLink that you wish to either reenergize the feed or to discontinue the option.

In instances where a shortage of fuse position is imminent, CenturyLink reserves the right to notify you of the need to exercise your option or relinquish the fuse position to CenturyLink.  Upon receipt of such notification, you will have the option of energizing the secondary feed to at least 20amps or returning the fuse position to CenturyLink within 30 calendar days of receipt of notification.   Recurring billing for the Power Maintenance Charge will be eliminated the day that you energize the feed or return the fuse position to CenturyLink.

You are responsible for outages and/or impacts to the service and equipment, you provided, due to the reduction in DC Power.

Restoration of the desired power is contingent on if desired power and fuse position are available.


Collocation charges will be based on the information you provided to CenturyLink on the Collocation Application form.  Below is an example of additional charges that are unique to a Power Reduction Request and will be provided to you via a quote.

The nonrecurring charges that could apply:

  • Quote Preparation Fee (QPF): The cost of performing a feasibility study and producing quote for the power reduction request. 
  • Power Reduction Charge: Costs associated with reducing the fuse/breaker size.Rates are categorized in this manner based on the work involved and power distribution point (e.g., BDFB or power board). Where additional work is required such as rewiring the power lead at the power source(or in some cases may require relocation of the feed) rates will be calculated on a Time and Materials basis. 
  • Power Restoration Charge (assessed if power is restored): Charge associated with restoring the power cable to the power source and is contingent on if desired power and fuse position is available.  CenturyLink will evaluate work required to perform power restoration request and provide you with a quote utilizing standard power element charges (DC power usage, labor, and cabling charges etc.) found in your Interconnection Agreement.  This charge will be on an individual case basis (ICB).
  • Power Off Charge (assessed when CLEC deactivates secondary feed): Charge associated with deactivating a secondary power feed and removing it from the power distribution point (e.g., BDFB or power board).
    • Note: a primary power feed with a minimum of 20 Amps, must be maintained in each collocation at all times, with the exception of Adjacent Collocation, Common Area Splitter Collocation, Facility Connected Collocation, and ICDF Collocation. Adjacent Collocation, Common Area Splitter Collocation, Facility Connected Collocation, and ICDF Collocation do not have a minimum DC power requirement.

The recurring charges that could apply:

  • Power Maintenance Charge: Monthly recurring charge associated with option to hold the power infrastructure from a secondary feed in place for your potential future needs.


Submit a Collocation Application form (New, Augment or Change).

On the application form indicate specific power feeds to be reduced (i.e., eliminate or reduce multiple feeds from 60 to 0 amps or reduce main feed from 60 to 20 amps). 

Under the type of request category you should indicate that this is an Augment - DC Power Reduction request.  This will indicate to the Collocation Project Management Center (CPMC) that this is a “reduce and hold” request for the power and not a standard removal.

A walkthrough will be performed prior to quote to determine the amount of work required to perform the power reduction and charges provided on the quote.  Based on this evaluation of work the following pricing strategy will apply. 

  • Only one QPF per application will be charged so if multiple feeds at the same collocation space are reduced or eliminated (i.e. main feed reduced to 20 amps and multiple feed totally reduced) you will only pay the associated power reduction charges, power maintenance fee if applicable, and one QPF.
The charge to reduce the power desired on a feed is based on the original amount of power ordered and the amount of work required to perform the reduction.


Billing from initial power value at the collocation site will be modified to reflect the reduced amount upon receipt of payment for the quoted charges and will be made effective back to the date of acceptance of the Power Reduction Application by the CPMC.


CenturyLink contact information is located in Wholesale Customer Contacts.

Frequently Asked Questions (FAQs)

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Last Update: August 8, 2011