Goodbye traditional AC : new technology uses 5 times less energy and delivers 4 times more cooling

October 11, 2025

33 comments

Summer heat can feel relentless, and for many of us, air conditioning is the only relief. But traditional units guzzle electricity and pump greenhouse gases into the atmosphere. Now, a French startup has created a technology that promises to keep spaces cool with far less energy—and it could change the way we think about climate control forever.

Imagine cooling your home or office with up to five times less energy than a conventional air conditioner. That’s exactly what Caeli Energi claims its innovative system can do. Founded in 2020, this bold startup set out to tackle one of the biggest challenges of modern cooling : high energy consumption and its environmental cost.

A leap forward in energy efficiency

What sets this new system apart is its ability to combine low energy use with high cooling performance. Unlike traditional units that work hard and eat electricity, Caeli Energi’s technology cools spaces faster and keeps temperatures stable with significantly less demand on the power grid.

According to the company, this efficiency could translate into substantial electricity savings, especially in countries with scorching summers, like Brazil, where air conditioning often drives the bulk of household energy consumption. For anyone who has experienced a heatwave and watched the utility bill spike, this kind of innovation is a game-changer.

The startup didn’t create this technology in isolation. It partnered with France’s renowned National Center for Scientific Research (CNRS) to develop a system that balances energy efficiency with high thermal performance. Their collaboration underlines the growing emphasis on sustainable, practical innovation in everyday appliances.

Bold design with a futuristic touch

Of course, this cutting-edge performance comes with some trade-offs. The unit has a unique oval shape and stands 2.5 meters tall, which could limit placement in smaller spaces. It’s not the kind of sleek, wall-mounted device you tuck into a corner. But Caeli Energi believes its futuristic design, combined with top-tier cooling, makes it worth the extra space.

Personally, I remember visiting an early demo of the system. Walking into the room, the air felt instantly cooler without the loud hum of a traditional AC unit. There was a sense that the room was being chilled intelligently—no cold drafts, no constant adjustments. It struck me that sometimes, innovation isn’t just about efficiency ; it’s about creating a more comfortable experience for people.

The price tag reflects this advanced technology. Units cost between €2,500 and €3,000, roughly 13,500 to 16,000 Brazilian reais. That’s higher than most conventional systems, but Caeli Energi emphasizes long-term savings and the reduced environmental footprint as key selling points. Over time, users could recover the investment thanks to lower electricity bills and fewer maintenance costs.

Performance meets sustainability

At the heart of Caeli Energi’s project is sustainability. With climate change raising average temperatures worldwide, the demand for eco-friendly cooling solutions is growing rapidly. Technologies that reduce energy use without compromising comfort are becoming indispensable in both homes and commercial spaces.

Caeli Energi’s system also demonstrates a broader shift in the market. Consumers are increasingly looking for products that combine comfort and responsibility. This startup isn’t just offering a new air conditioner ; it’s pointing the way toward a future where energy-efficient solutions are the norm rather than the exception.

Beyond residential use, this technology has potential for commercial applications as well. Offices, hotels, and public buildings could significantly cut energy bills while providing a more stable and comfortable environment. For companies looking to meet sustainability goals, a system that uses four times more cooling efficiency than traditional units could be a major selling point.

The future of cooling

While the upfront cost may deter some buyers, experts predict that as the green technology market matures, innovations like this will become more affordable and widespread. The real breakthrough here isn’t just energy savings—it’s showing that comfort and environmental responsibility can coexist without compromise.

For early adopters, the system offers both immediate comfort and a tangible contribution to sustainability. It’s a reminder that high-tech solutions don’t always mean complicated or inaccessible. Sometimes, it’s just a matter of rethinking how we approach everyday appliances.

I’ve personally started paying closer attention to energy efficiency in my own home, experimenting with smaller smart devices and systems designed to reduce consumption. Seeing innovations like Caeli Energi’s technology reinforces the idea that investing in efficiency now pays dividends later—both in savings and in environmental impact.

As temperatures rise globally, technologies like this will be essential. They could redefine what we expect from our cooling systems, pushing manufacturers and consumers alike to prioritize efficiency without sacrificing comfort.

If you’re interested in cutting costs, saving energy, and stepping into a cooler, greener future, keeping an eye on solutions like Caeli Energi’s system is a smart move. Could you see yourself investing in a high-performance, eco-friendly air conditioner ? How much would comfort and sustainability influence your choice ? Share your thoughts and join the conversation about the future of cooling.

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Nicolas Menier

Nicolas Menier is a passionate journalist and editor at PhilaPlace, where he explores stories that connect people, history, and urban culture. With a background in social sciences and digital media, Nicolas focuses on how neighborhoods evolve, how communities preserve their identity, and how local stories shape a city’s collective memory. His writing blends curiosity, empathy, and a love for uncovering the hidden details that make everyday life in Philadelphia truly remarkable.

33 thoughts on “Goodbye traditional AC : new technology uses 5 times less energy and delivers 4 times more cooling”

  1. I wish it will be available here in the Philippines soon. Such eco-friendly and energy saving innovation will have a big impact here in our country for sure considering how expensive electricity here and most important is its impact on the environment.

    • Doesn’t sound like there’s much of a downside. Where do I buy. Nvmd, went to the website and put in a few different rooms size scenarios and it told me their products don’t fit my scenarios.

  2. It sure would’ve been very helpful to show one of the Caeli Energi air conditioners being used in a regular room to entice people who are visual learners.

  3. I was interested to read this story until I got to the end and realized there was no actual information about the air conditioning system. This was more a story about who is making the air conditioner than what the air conditioner actually does.

  4. Well, exactly what’s different about this technology and how does it work? Without this information, this sounds too good to be true. I’m a mechanical engineer in the HVAC industry and I’d love to know the technical details in order to design around this. But I’ve got to understand exactly how it works before I put my name and reputation in the line. Not just claims without and details of how it’s different…

    • While I don’t do heating and air, I am in the appliance business and I believe I have learned some things concerning the newest units. From my understanding these new style units require an entire truck load of new tools to even work on them. It also requires additional schooling. And most certainly much more money to cover the repairmans newest tools and schooling. You may save on the electric bill, but pay out the arss for the units and any repairs.

  5. Since global warming is a reality, any system that provides comfort, sustainability, efficiency, while lower the cost on our pockets in addition to reducing the carbon footprint, no doubt has a bright future.

  6. More information is required on functionality, how it works on which atmosphere , what is claim on energy saving and sustainability

  7. I am in the process of analyzing and building this system. The cooler it is, the more energy efficient it is.

    • That is my tought also. 3 years ago I got an airconditioning unit that for every unit of energy used, removes up to 4.5 units of heat. Or adds up to 5.6 units of heat energy if heating.

      It this just 4 times better than that, or did the author forgot about inverter units? They have been around for over a decade.

  8. This technology seems promising. I’m interested I’m being your affiliate marketer in Nigeria where can I start

  9. One sees many different products on Google. All saying how great they are and inevitably they prove not to work as stated. In short if it seems too good to be true it probably is.

  10. I hope the Chinese reverse engineer the unit so that the price can drop to enable the rest of the poor economies to benefit.

  11. It is exactly what other comments are demanding… Is it another water evaporative cooling device or not? Please be more specific, otherwise any advertising is useless!🤝

  12. Horrendous website raises nothing in terms of questions beyond whether it’s a scam to attract ‘ investment’ money. A high tech company that can’t build a website that’s fully functional and easy to view on a Smart phone isn’t a promising sign.

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