Hi everyone,
This might be a very stupid question for some, but this just isn’t my cup of tea…so bare with me.
I have a freezer which I suspects eats alot of power. I have the freezer plugged in to a Xiaomi Smart socket which can collect ‘Power (Watt)’ data. The graph it generates is below:
I just want to know how much kwh it uses so I can calculate how much kwh it consumes over a year… I just don’t know how 
This might get you in the right direction:
https://www.saveonenergy.com/energy-consumption/
If your socket is not capable to supply the kWh information, then you need a socket that can do that.
This is anAEOTEC Smart switch 6
You could export the data as CSV using this app, import it into Excel, average the wattage over a time period and calculate a kWh amount from that.
From the original screenshot I inferred OP is still using 1.5 
