www.euronews.com Like water from a faulty tap, power leaks from all electronic devices - whether in use or not. The fact is a portion of our energy bill goes down the drain because the existing microchips are not very efficient. As we find out in this programme, the electronics of tomorrow will use much less power. But first, let's see if we can already cut that energy bill with smarter air conditioning. At the Centre for Sustainable Building in Kassel, the internal climate is controlled by an energy-saving computer algorithm. The system analyses weather patterns to determine when to turn the air conditioning on or off. It also saves energy by relying on natural ventilation and solar power, whenever possible. Dimitrios Rovas, assistant professor of thermodynamics at the Technical University of Crete, explained: "Suppose that we have this building and there's high wind, so we know that certain rooms will be cooled quicker because there are more losses to the outside. So our system is able to predict that particular room or particular zone will have more energy needs in the foreseeable future, and can start to optimise by pre-cooling, or pre-heating that particular room, using, if available, energy from the photovoltaics [solar panels]." The system deals with each room individually using sensors that measure temperature, humidity, CO2 levels and the number of people present. It also reads work schedules, so it knows which rooms will be occupied and when. Based on that, it <b>...</b>
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