Shape Tomorrow with Cooling
Technology of Tomorrow

The eChiller models are the only chillers worldwide which use the natural safety refrigerant water (R718) as the refrigerant, offer outstanding energy efficiency, and are manufactured in mass production. The eChillers’ are a future-proof investment and provide best cooling capacities up to 120 kW with a modular scalability of up to 300 kW. The chilles are ideally suited to cooling data centres and server rooms, buildings, switching cabinets and industrial processes.

Our cooling technology is based on water: 100% water – 0% CO2 emissions.

Our innovative products are groundbreaking and unrivaled.

We are an international pioneer for climate-friendly cooling.

We develop and produce our products entirely in Germany.

Industries and Applications:

What makes the
eChiller so clean,
environmentally friendly
and future-proof?

kg CO2

The total carbon savings through the use of the eChiller.

Improve your carbon footprint too!

Efficient Energy is Sustainable Refrigeration Technology

Learn more about our company, implemented projects in various application areas, activity fields and career opportunities at efficient energy and achieved eChiller awards.

efficient energy - The company for sustainable refrigeration

Read more about our history, who we are today and what values we stand for

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Awards - The eChiller is a multiple awarded product

Find out more about the awards that the eChiller has been granted

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Jobs - Make a career with one of the most sustainable employers in the refrigeration industry

Revolutionize the refrigeration industry with us and explore the job opportunities at Efficient Energy GmbH

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Job reports - Successfully implemented projects

Click through a selection of job reports and read more about our clients, the project implementation and the outstanding results achieved with the eChiller

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Events & trade fairs


Tire Expo

Hanover, Feb, 25-27, 2020


360° dc-Lounge @AUTOMATIA

Zug, Switzerland, March, 4-5, 2020


Hanover Industry Trade Show

Hanover, April, 20-24, 2020


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