Question About Energy Management SmartApp

If I go the market place then to smartapps select energy management and pick energy saver I am not clear on “Reports Above …” in either watts or kw. When I put a number in it never has me select watts or kw.
How do I know what I am selecting? For example when this power meter reads 5 turn off this switch, is it 5 watts or 5 kw.
Any help would be appreciated.