The title of the article lead me to expect a Fridge that doesn't use electricity. Instead it should have been something more akin to "A Fridge that can keep food cool for up to 35 days after a power outage".

I wonder how many days of cool you loose each time you open the fridge to pour a glass of milk.

The design is rather novel though and I'd love to see it in my home one day if they shrink it a bit.