Hello Jonn
The best I can do for you regarding this question is to send you the link for the power calculator
The Cisco® Power Calculator enables you to calculate the power supply requirements for a specific platform.
The calculator is an educational resource and a starting point in planning your power requirements; it does not provide a final power recommendation from Cisco. To determine the power requirements and software most appropriate for your company, we suggest you work with a Cisco representative, Cisco channel partner, or a solutions provider.
http://http://tools.cisco.com/cpc/
Regards.
Wilson B.
