Energy consumption – LONDINIUM I

One question that we’ve been asked more than once about the LONDINIUM I is energy consumption

Well today we bought one of these gizmos; a plug in power monitor:

We have a 236V supply at the time the image was taken

When the element is on the LONDINIUM I draws 12.15 amps of current (2850W element)

And thats a lousy image, but the display shows 2823W of energy being consumed when the element is on

When the element is not on LONDINIUM I draws 1.8W of energy

And the least surprising image of the lot, confirming that we have a 50Hz supply

KW/h consumed

Elapsed time since turning on

KW/h for the 30 minute interval

0.36

30

0.36 (500mL startup flush)

0.47

60

0.11 (no activity)

0.57

90

0.10 (no activity)

0.69

120

0.12 (2 espresso)

The ambient temperature was 18C at the time

In total the machine was on for 4 hours, 32 minutes and consumed 1.12KW/h