This integrated Siemens fridge freezer is somewhat energy efficient. The freezer part of this fridge freezer holds 76 litres och you get, among other things, a frost-free system.
From Webbs
Siemens KI86NVSE0G iQ300 Integrated Frost Free Fridge Freezer
Applian Centre
Siemens iQ300 KI86NVSE0G Integrated 60/40 Fridge Freezer with Sliding Door Fixing Kit - White - E Rated
This product is also available at 3 unverified stores.