Method and System for Prioritizing a Plurality of Variable Speed Devices

A computer system, comprising:

• a controller;
• and
• memory for storing information of a plurality of variable speed devices;
• the controller being configured to:
• determine, for a first variable speed device, a cost dependent on an operating cost of the first variable speed device operating at part loads for a specified period of time,
• determine, for a second variable speed device, a second cost dependent on an operating cost of the second variable speed device operating at part loads for the specified period of time, and
• generate for display on a graphical interface screen a listing of the first variable speed device and the second variable speed device in a priority order based on the cost and the second cost.

A non-transitory computer readable medium having instructions stored thereon executable by a processor for prioritizing a plurality of variable speed devices, the instructions comprising:

• instructions for determining, for a first variable speed device, a cost dependent on an operating cost of the first variable speed device operating at part loads for a specified period of time;
• instructions for determining, for a second variable speed device, a second cost dependent on an operating cost of the second variable speed device operating at part loads for the specified period of time;
• and
• instructions for generating for display on a graphical interface screen a listing of the first variable speed device and the second variable speed device in a priority order based on the first cost and the second cost.