Forgot my personal nuclear power plant shut down - Super power saving device

I've been through measured based on the current debate and the soaring electricity prices with an ammeter my fridge from 1997 and my freezer 1993 (all brand appliances) one week. The extrapolation to one year showed 499.2 kWh for both devices together. Although both devices are still in order, I then decided to buy a modern energy-saving cooling combination. The offer Bauknecht KG 332 A ++ at Amazone under 400 euros was just right. As for the noise I can only make a comparison with my old equipment and is located at Baukecht KG 332 A ++ significantly lower. And most importantly, come on now - one week current measurement after cooling down was in the same week rhythm at 5-7 degrees cooler compartment aand - 15 degrees freezer a a projected annual consumption of only 173 kWh, mind in the summer at a kitchen temperature of 21 to 23 degrees Celsius with a larger cooling - and the same frozen volume compared to the old equipment. Of interest is the relation, because the conditions of use and therefore the consumption values ​​may vary. The consumption is less than 30% or about 330 kWh / year less on both equipment. In approximately 4 years with rising Ernergiepreisen the freezer Bauknecht KG 332A ++ has refinanced 100% and then I spqare every year around 100 euros. More is now really no longer on the device price.