Mine idles around 85W, 100-105W when transmitting heavily. Basically all that heat goes into the flat surface of the dish, which is enough to melt off snow. But it's not a dedicated heating functionality, and I've not seen a teardown that demonstrates a dedicated heating device.
Though I imagine a cat attenuates the link a good bit and encourages heating.
Starlink could be a way out of this market, but alas is not yet (well, they're actually price competitive, if you exclude the cost of Dishy and the power consumption).
By baseline I mean nobody home, lights and appliances off but internet, WiFi, IoT stuff etc all running.
However my fridge is less than 50W.. I don't have a huge one like they do in the states (we call those "American refridgerators" here and they're a luxury). It's on about one third of the time (half the time in summer) so it adds about 25W of baseline load.
I actually find it a bit too much. I'd be happier if I could bring it down to 100W. But it's hard to do so. All those little wall warts add up and I just love my home automation. I have 5 1gbit switches alone (8-ports), 3 WiFi APs and then of course all the smart gizmos.
In the US, an idling desktop computer, an energy efficient refrigerator, and a fan for household air circulation would be enough to exceed that.
I just download usage details from my electric company for a bill from the middle of summer when my usage is lowest, which provides usage broken down by 15-minute intervals, and the lowest 15-minute interval I had was using electricity at a rate of 4.8 kWh/day.
(The highest was a rate of 193 kWh/day. Probably had a 15-minute interval where the water heater was on, at the same time as the electric clothes dryer, while I was cooking something using the electric oven/stove, and microwaving something, while the well pump was running, and the iMac was doing something CPU intensive, while the fridge happened to be running).
My household's _baseline_ power usage is 100W, which is probably mostly the refrigerator based on some energy meters.
So you're correct, my total power consumption would only go up by 50%, but one of these dishes would double my household's idling power use.
Still, 2.4kWh is very low. I think it, in the western world, even is hard to achieve for a single person household that doesn’t use any electricity for heating or cooking, has a gas-powered refrigerator and no, or a gas-powered, clothes drier.