using the bidet to wipe your ass is little strange, you put this みず　up the hole, especially when using the technology in Japan, this washlet, where if you press the wrong bottom [i mean button] you get too much, and you feel little violated

in europe [not england though] i tried sometimes to wash it with bidet, but the fact that take too much time was always pushing me away, better spread it around the hole, like i do most of the time.

now I also use a liggle sponge, then clean the sponge too [like the romans did actually]

Anyway back to the techno bidet

the energy used by these robotic ass-istants is about 700W but they have also a computer that check when you went last time so in the period between poo it shut down or sleep like your computer you re using now

check video for some characteristics
http://www.faucetdirect.com/index.cfm/page/product:mediaGallery/uniqueId/226441/loadVideo/true

I have to make a calculation
but water use is less than regular even counting the spraying session
also no toilet paper 1.3KWh for each roll
it understand if you pee or poo
the hot air [the con air] is interesting but I prefer some towel [just don’t confuse yours from your mate] especially after a hangover night

Best would be if the shit will go then transported to the country fields used as manure

Anyway ++ for the total hygiene and energy