HalfmanHalfmac

In my quest to reduce power consumption I have hooked up a current cost meter to a RRD database and using RRDtools display the results below. This way I should be able to see what savings can be made, if any.
Power consumption last 10 minutes
Power consumption last 60 minutes
Power consumption last 6 hours
Power consumption last 24 hours
Power consumption last 7 days