Killowatts are normally delivered as a rate - meaning that they are usually in the form of killowatt hours.
Assuming that the measurements are kw/h, you’re more likely to want…
SELECT avg(kWatts) FROM Status WHERE time > now() - 1h
This should give you something like 2.7 kilowatts per hour. If 2.7 is an instantanious measurement, you’re consuming truly incredible amounts of power (and it doesn’t make a great deal of sense given your voltage and current - unless I’m not understanding your raw data).