Hello matt2me
The C6100 does not have a load balancing feature. The only mode for the PSUs is redundant. This server is operating normally. When the power supply is not being used it should not have a large amount of power output. I would suggest making sure your other C6100s have current BMC and PSU firmware. If both PSUs in those units are outputting the same amount of power then they are unnecessarily increasing your electric bill.
Thanks