[nancy] grvingt add 'metric: power' for pdu

...rid5000/sites/nancy/clusters/grvingt/nodes/grvingt-1.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-10.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-11.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-12.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-13.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-14.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-15.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-16.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-17.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-18.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-19.json

...rid5000/sites/nancy/clusters/grvingt/nodes/grvingt-2.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-20.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-21.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-22.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-23.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-24.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-25.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-26.json

...id5000/sites/nancy/clusters/grvingt/nodes/grvingt-27.json