# Compact Electricity-Free Refrigerators This Fridge Doesn't Need Electricity to Keep Food Cold By Katherine Pendrill | Published 2015-10-27 | Tech Source: Trend Hunter, https://www.trendhunter.com/trends/keep-food-cold References: [magazine.good.is](http://magazine.good.is/articles/refrigerator-without-electricity-wind-chill) & [challenge.biomimicry.org](http://challenge.biomimicry.org/en/custom/gallery/view/2576) A group of students from the [University of Calgary](https://www.trendhunter.com/trends/temperatureregulating-tents) recently designed an eco-friendly fridge that does not require electricity to keep food cold. Although refrigerators are great for preserving food, they require a great deal of energy to run. This sustainable fridge offers an alternative way of [keeping perishables fresh](https://www.trendhunter.com/trends/ultraviolet-food-storage) and unspoiled. The 'WindChill' is a sustainable fridge that draws inspiration from the standard root cellar. The eco-friendly fridge uses the natural cooling effect of the ground to keep food cold. The device actively draws in air and then uses the natural cooling effect of evaporating fluid to preserve the perfect temperature. The result is an [energy-free system](https://www.trendhunter.com/trends/easy-pull-food-processor) that helps preserve food. The system is not only energy efficient, but it is also inexpensive to produce. The advantages of the unit mean that it could dramatically change the way that rural communities store perishable food items. ## Trend Insights (Trend Hunter) - Score: 5.6/10 - Popularity: 75% | Activity: 84% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Tech](https://www.trendhunter.com/tech) > [Gadgets](https://www.trendhunter.com/gadgets) ## Key Themes ### Why This Trend Is Growing - **Electricity-free Refrigeration:** There is a growing trend towards developing refrigeration technologies that do not require electricity, creating a space for innovation in sustainable food preservation. - **Energy-efficient Cooling Systems:** As the demand for sustainable cooling systems increases, there is an opportunity for companies to create innovative, energy-efficient cooling solutions using natural resources. - **Low-cost Food Preservation:** The development of low-cost, sustainable food preservation technologies has the potential to revolutionize the way we store and distribute perishable food items. ### Industries Being Reshaped - **Green Technology:** Companies specializing in green technology can innovate and develop an electricity-free refrigeration system, lowering energy consumption and carbon emissions. - **Agriculture:** The agriculture industry can benefit from low-cost, sustainable food preservation technologies to reduce food waste and improve access to perishable food items in rural areas. - **Manufacturing:** The manufacturing industry can explore the production of WindChill refrigeration systems or other sustainable cooling solutions using natural resources, opening up new markets and opportunities for growth. ## Related on Trend Hunter - [Electricity-Free Portable Refrigerators](https://www.trendhunter.com/trends/tony-food-storage-container.md) - [Energy-Efficient Portable Fridges](https://www.trendhunter.com/trends/energyefficient-portable-fridges.md) - [Wheel-Base Smart Refrigerators](https://www.trendhunter.com/trends/fridze.md) - [Portable Ice Maker Refrigerators](https://www.trendhunter.com/trends/ecoflow-glacier.md) - [Backpack Car Fridges](https://www.trendhunter.com/trends/litheli-frozenpack.md) - [Food Preservation Fridges](https://www.trendhunter.com/trends/beko.md) - [Ice-Free Fridge Coolers](https://www.trendhunter.com/trends/fridge-cooler.md) - [Compartmentalized Smart Refrigerators](https://www.trendhunter.com/trends/aura-refrigerator.md) - [Evaporated Cooling System Concepts](https://www.trendhunter.com/trends/tony.md)