Power (watts) utilization data from nodes

Are there known ways to get the power utilization off of a node? I would like to get this data to compare the “cost” of two apps that I use. Preferably I would like to be able to run this at the user level and spit out the data to a file during a run of the app, but if there are admin tools out there that can run as a daemon or something similar that I can just get approximate times to correspond to my app runs, that would be useful as well.

I’ve seen this type of data in the management controller on nodes. If you have an iDRAC(Dell) or iLO (HP), you might be able to query this data.