Danish company AC Sun recently made news with the “invention” a new solar-powered air conditioning system.The new systems are pollution-free, low-noise, and use only 10% of the energy of conventional systems. The only problem is they’ve already been invented, several times over.
Lars Stigel, director of Østjysk Innovation, an investor in AC Sun, spoke with enthusiasm about AC Sun’s design. “It is a groundbreaking technology in relation to renewable energy and energy savings,” he says.
It’s true. There’s no question that solar air conditioning is a technology that deserves its day in the sun. Since central air conditioners are one of the most energy intensive home appliances, the solar-powered alternatives have significant potential for curbing climate change.
However, AC Sun is just the latest in a growing list of companies hoping to capitalize on more efficient and environmentally friendly home cooling technology. In fact, their model won’t actually be commercially available for another year. Who got to the table faster? SolCool (USA), Solar AC (USA), Greencore (USA), Broad (China), and Rotartica (Spain), to name a few.
It might seem counterintuitive that solar heat would cool a house. But the principles that allow the solar-powered AC systems to operate aren’t anything new. Essentially, the AC Sun unit uses the same Carnot cycle mechanics at work in traditional air conditioning and refrigeration systems. The main difference is that instead of drawing energy from the electric grid, the solar air conditioner uses steam from sun-heated water to drive an engine. A lengthier explanation is available at Solarserver.
Sources: The Official Website of Denmark, AC Sun, Treehugger (for alternate companies).
Photo credit: (top) jhritz via Flickr, under a Creative Commons license; (right) AC Sun.
The AC-Sun set up IS an invetion, parts of the solution is patentet so nobody else did it that way before. As to others beeing on the market, arheem I guess the opposite would be more surprising. As you seem to be bored with technicalities and details I will just tell you that these are the differences; technicalities and details. And of course performance which is the real reason why nobody actually bothers to buy the existing solar assisted AC’s. The lines between invention, re-invention and development are not clearly drawn: Steam engines existed before James Watts, but they were not usefull because of poor performance, so James Watt is an inventor.
This is needed technology. Please send me more information as it is developed.
Thank you,
Ray Beets
Efficiency will be the yardstick for true breakthrough in the solar power business. If this product is better than its predecessors, then I’ll like to know more about it, on a commercial level.
This technology shall be tested in high temperature like 50C with high humidity.
I love the fact that so many people still think solar power is science fiction, yet everyday another MW or 2 is being installed. So much activity in this industry that it’s expected to reach 1GW in the USA by the end of the year.