Question : Problem: How to calculate Server Power (in watt, BTU)

I am calculating BTU of air conditioner for our server room. There are 30+ servers in the server room. Most of them have redudant power supply. For example, if a Dell 2950 server has 2 x 700 W power supply (from server specifications), how much watt of this server need? Do I need to consider peek time or running time?

Thanks,

Answer : Problem: How to calculate Server Power (in watt, BTU)

If they are all dells (or you have the btu and power info from the non-dell devices) you can use dell's rack advisor program to calculate btus and max power usage.
http://support.us.dell.com/support/downloads/download.aspx?c=us&cs=04&l=en&s=bsd&releaseid=R91359&formatcnt=1&libid=0&fileid=119636