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When I read the papers, I sometimes see the phrases energy saving and energy savings. I don't understand how they are different. Compare these sentences:

1) However, the maximum energy saving obtained by the OTMR scheme depends on appropriate speed setting for the processing units, which in turn is determined by the system power characteristics.

2) As we discussed earlier, the processing speed for the first two processing units in OTMR systems is critical in energy savings.

3) However, if it is possible to reduce the voltage at all by running slower, then there will be a net energy savings per cycle.

How are they different?

  • I'm pretty sure about #1 (the act of saving) and #3 (the amount of energy saved). However, I'm not sure about #2, it seems to be about the acts of energy saving. Perhaps there are many kinds of "energy saving" (similar to sense #1). --Hmm, reading it once again, and I'm not sure if #1 refers to the act or the amount of saving now. – Damkerng T. Dec 18 '13 at 14:23
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    Similar to ell.stackexchange.com/questions/14573/… – Steve Melnikoff Dec 18 '13 at 14:52
  • @Steve: Duplicate, I'd say. Finder - since I don't really agree with the only answer on that earlier question, I'll post an answer there which will hopefully make things clearer for you. – FumbleFingers Reinstate Monica Dec 18 '13 at 16:08
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It's a subtle difference, but one that's there if you think about how they're used in these examples.

'Energy saving' is a concept or a trait. Example:

This refridgerater is an 'energy saving' appliance; it only uses half as much power!

'Energy savings' is the literal savings of said appliance. Example:

The extra cost of a new refridgerater was easily covered by the 'energy savings' of having a more efficient appliance.

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