Audrey Levy stands beside solar-powered fridge, showcasing sustainable cooling technology using bacterial cellulose.

Audrey Levy’s Solar-Powered ‘Xero Cool’ Fridge Transforms Bacterial Cellulose into Sustainable Cooling

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Written by Seth Sebastian

2026-07-27

Revolutionizing refrigeration with solar power

Designer Audrey Levy has taken a bold step in rethinking domestic refrigeration with her innovative project, Xero Cool. By leveraging bacterial cellulose xerogel alongside solar thermal technology, Levy proposes a system that significantly lowers greenhouse gas emissions. Her project challenges the status quo of energy-intensive refrigeration.

A fresh take on materials

The fridge showcases a soft, compact design constructed from bacterial cellulose xerogel—a highly insulating, light, and compostable alternative to the traditional plastic foams. Levy envisions a setup that uses solar energy, where heat from the sun drives the cooling process, eschewing the need for constant electrical power.

Xero Cool fridge structure made from bacterial cellulose xerogel.
The Xero Cool fridge is made from bacterial cellulose xerogel

Rethinking aesthetics for a new era

Levy critiques the conventional refrigerator’s aesthetic as stagnant, heavy, and sterile. Her design embraces the unique texture of xerogel and insulating felted wool, steering clear of the ubiquitous plastic whiteness of conventional fridges. Her approach aligns with the solarpunk ethos—imagining futures enriched by sustainable technologies.

Close-up of insulating xerogel, replacing standard expanded plastic foams.
The xerogel is highly insulating, replacing expanded plastic foams

A blend of nature and technology

Within the fridge, macrofluidic panels circulate cooled water, keeping the xerogel and wool from direct food contact. This setup aims to negate the need for electrically generated cooling, opting instead for a solar-thermal absorption refrigeration system triggered by solar heat.

Levy’s upcoming phase involves connecting this refrigerator to a solar collector, condenser, and evaporator coils, all using bio-based materials like activated carbon and ethanol as refrigerants.

Similar to Levy’s approach, Yufeng Tu’s Ocean Vortex creatively employs marine pollutants for environmental solutions.

Audrey Levy uses non-toxic ingredients to create sustainable xerogel.
Levy made the xerogel herself using non-toxic, largely food-safe ingredients

Environmental impact and future possibilities

Absorption refrigeration, Levy’s chosen method, prioritizes sustainable construction and operation. This approach bypasses solar panels and complex moving parts, offering silent operation.

Levy includes a lower fruit bowl, suggesting adjustments in our refrigeration habits. Foods like tomatoes and bread benefit from ambient temperatures rather than the cold, opening a dialogue about intentional consumption and kitchen dynamics.

Audrey Levy aims to redefine refrigeration through sustainable innovations.
She wants to challenge norms around wasteful refrigeration

The project reflects Levy’s graduate work in Biodesign at Central Saint Martins in 2026. Her work, alongside her peers’, explores a radical shift towards ecological responsibility in design and technology. Through Xero Cool, Levy invites us to reconsider efficiency and sustainability in everyday appliances.

Source: dezeen.com

Frequently asked questions

What is Audrey Levy’s Xero Cool fridge made of?

The Xero Cool fridge is constructed from bacterial cellulose xerogel, a highly insulating, light, and compostable alternative to traditional plastic foams.

How does the Xero Cool fridge use solar energy?

The fridge uses solar thermal technology, where heat from the sun drives the cooling process, eliminating the need for constant electrical power.

What aesthetic does the Xero Cool fridge aim for?

The design critiques the conventional refrigerator’s aesthetic, embracing the unique texture of xerogel and insulating felted wool instead of the ubiquitous plastic whiteness of traditional fridges.