Electricity usage - idle power usage - energy consumption
I've some things I would like to point out. I didn't know another place to do so. I hope I could start a discussion about this topic, maybe learn something in the process, but mainly raise awareness about the topic and with this encourage improve current and future products.
Short intro
I love it when devices work as intended and especially if they do not consume any (or much) power when doing nothing, i.e. idle power consumption or standby power consumption. I always thought that this limit was 0.5W, however I measured the Tapo RV30 at just above 2W continuesly after the robotvacuum was charged to 100% for an hour already. Recently I learned that there are a few categories in the EU rules. Each with it's own limits (see 1). I'm note sure in which category this appliance is, but I don't really like the amount of power the robotvacuum uses in standby compared to operating it twice a week.
Power consumption - Tapo RV30
I mainly want to talk about the standby power consumption (see 2). I measured this with a Shelly Plug S, on average 2.15W (or about 19kWh per year). This is not about cost (for me) but more about waist. This energy is used for nothing, except standby. In contrast. The robot itself cleans the house in about 30 minutes, the battery isn't completely empty, but lets assume it is. Then it will have used close to 40Wh (rounding up). Do this twice a week and in a year the robot vacuum will use about 4.2kWh. This means if I would run the robot vacuum this way a 'on the back of a paper' calculation shows that less than a quarter of the total yearly energie consumption is actually used for cleaning! This sounds ridiculues to me...
Just spreading my thoughts and opening the discussion
Potential (short term) solution
Make it possible in the app (and ideally Home Assistant integration) to be able to power-off the robot vacuum. I noticed that when the robotvacuum is off and connected to the dock (how to achieve, see 3) the robotvacuum will start back up automatically when receiving power from the dock. Being able to auto shutdown the robot when charged 100% I could wake it up with a smart power socket. This would drastically bring down the power consumption of the device when not doing anything.
Footnotes (see x):
1) https://energy-efficient-products.ec.europa.eu/product-list/standby-networked-standby-and-mode_en 2) in the specs is says the max power consumption during charging is 10W, however I also do measure it to be starting at 14W and gradually lowering to 13W during charging. I don't mind the values, However a maximum of 10W should imply a maximum in my opionion...