>> That's per can is only about 0.7 Watt
and not like the previous speaker claiming 4 Watt!
so does a box about 6.1 kWh / year - ie about 1.50 EUR (0.25 EUR / kWh).
I hope I could help it, as I also said to the high Srtomverbrauch unsettled.
VG Jens