Mandate doors on new supermarket fridges to reduce electricity use and emissions

The food retail sector is responsible for approximately 3% of all electricity consumption and 1% of greenhouse gas emissions in the UK, and in-store refrigeration is responsible for around 50% of that consumption: https://www.imperial.ac.uk/news/197495/research-suggests-fridges-could-reducing-supermarket/

In-store refrigeration can be made 30%-50% more efficient by fitting fridge doors: https://eia-international.org/wp-content/uploads/Chilling-Facts-VI1.pdf

This means fridge doors could save us around 0.6% of our total UK electricity requirement, and reduce UK GHG emissions.