[Ron350]

Whirlpool energyguide efficiency?

I need to buy a new top freezer refrigerator and was wondering what has changed in the last 8 years.
My 8 year old 21 cu ft Whirlpool has a rating of 750kWh/year.
The new 21 cu ft Whirlpool has a rating of 442kWj/year so what changed?
The box looks the same so don’t think they added insulation.

[woodchuck]

For one thing compressors are much more efficient now. They may have changed the way the figure the usage.

[Ron350]

Woodchuck thanks for the replies.

Now I just have to decide where to buy the new refrigerator.