What device(s) do you use for instant energy measuring? Like WallOutlets

[Draakje]

Hi all,

I would like to know what electronics you guys are using to measure energy around the house.

I am very interested in how to monitor the power consumption per wall outlet as I would like to know how my power consumption is divided in the house.
I would also like to monitor my room light. I have currently no idea how to put any hardware in these lines as these are all in the wall (or behind a wall switch)

Any help/information is very much appreciated

regards,

Ronald

[Sneezydevil]

I use Z-Wave wall plugs to monitor power usage, there are several that do this.

[paulvha]

These days : z-wave connection : greenwave 6 plus and AN158 wall sockets. Before zwave I used standalone energy meters per wall socket that display the usage. As I had high energy usage before, I spent a day with these standalone meters to connect them manually between each switch and utility in the house, room-by-room to make a complete inventory. Of course you have to be careful and know what you are doing exactly. I am sure there are better ways now, but it was the best I could do at that moment. I really helped me to understand reasons for my high usages and the actions to take to reduce it. With zwave I now monitor and control the high energy users and work to reduce the consumption even more.

[paulD]

Hi paulvha,

What standalone meters did you use ? (model, brand) and was it enough accurate to measure very small consumption ? Like the consumption of mobile charger connected to the Wall but not in use (around 0,x Wh). Was the instantaneous measure true ? Was this consumption taken into consideration into the sum of the day ?

thank you,

[paulvha]

I had bought mine at Kijkshop (nl) : Cresta. very accurate, indeed down to the 2w and 2 digits behind the digital comma. They don't seem to have them on the webstore. I saw others bought at stores like Gamma. Praxis etc. That said the AN138 I also accurate, goes down to the 2w and with Domoticz gives me the Wh.

[paulD]

Ok thanks.

So this isnt enough accurate to hunt the energy wastage of electrical equipment in standby mode.

[paulvha]

for sure it does. 1 or 2 watt can be measured. When I plug in my phone charger to the Cresta and see 0.09W... (just did that to test )