This file was moved to Wikimedia Commons from en.wikipedia using a bot script. All source information is still present. It requires review. Additionally, there may be errors in any or all of the information fields; information on this file should not be considered reliable and the file should not be used until it has been reviewed and any needed corrections have been made. Once the review has been completed, this template should be removed. For details about this file, see below. Check now!

An idealized representation of the four kinds of reserve power and the time intervals after an unexpected failure that they are in use. This image was created by Cedars using en:OmniGraffle. A PDF version of this image is available here. The diagram itself is based on Figure 2 from a March 2003 report by the Oak Ridge National Laboratory on Spinning Reserve From Responsive Loads.

I think the graph is wrong and different with the text. Non-spinning is the same meaing of Replacement reserve. Am I wrong ?

I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

This graph image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with {{vector version available|new image name}}. It is recommended to name the SVG file “Reservepower.svg”—then the template Vector version available (or Vva) does not need the new image name parameter.