Welcome to Brainstuff from house Stuff Works dot com where smart happens. Hi Am Marshall Brain with today's question, what is the smart house? What makes it? Smart? Home construction is one of those things that really has not changed a whole lot for hundreds of years. For example, if you look at the houses in colonial Williamsburg, they all have pitched roofs with shingles, walls with sighting of brick or some kind of wood on the outside and plaster
on the inside, wooden floors, casement windows, and so on. Yes, a modern home has central heat and electrical wiring not found in the seventeen hundreds, but the structure and common features are remarkably similar to today's homes. Change is finally occurring in the twenty one century, however, and it's picking up speed. We hear more and more about smart houses, houses that are greener and more intelligent than ever before. Let's take a look at what a smart house looks
like today. There really are two sides to the smart label. One side is smart in terms of home's resource consumption, water, energy, construction materials, and so on. The other is smart in terms of intelligent systems that control the house. We can start on the resource side, because this is where a lot of the monetary benefit comes from. When you think about owning a home and the costs of owning it, there are two places where the money can really add
up fast. The first is energy, which has to be paid every month, and then the second is upkeep, which often comes in big expensive bursts, for example, replacing the roof. There's been a lot of advancement on the energy side because of improvements in solar energy technology. A smart house can use solar energy in several different ways. First, it can be designed to take advantage of passive heating and cooling.
This usually involves the placement of windows and heat absorbing materials to capture the sun's heat in the winter and to provide cooling ventilation in warmer months. Second, a smart house can actively collect solar energy with solar panels for heating, hot water, and electricity generation. There are even solar air conditioners available now. Instead of using electricity and a compressor to drive the refrigeration cycle, they use the sun's heat
to drive it. A smart house can lower its net energy consumption towards zero, or even create net positive energy that's sold back to the grid. By making intelligent use of the sun. Even if using more traditional technologies, it's possible to save lots of energy. For example, heat pumps can now use geothermal technology to radically improve their efficiency.
Instead of using outside coils exposed to the air, the outside coils are buried in the yard or in a well where temperatures are steady year round, Heating and cooling costs can in some cases be cut in half. Another place where houses can save on resources is in terms of water consumption. A good example of how far water technology has come can be seen in the smart house at Duke University. First, the house collects water off the roof and stores it in six three fifty gallon containers
in the basement. This water is filtered, purified with UV light, and then used for things like flushing toilets, washing dishes, and doing laundry. The house also collects water from the roof and stores it in two massive thousand gallon tanks outside. This water is used for landscape irrigation. It's like the world's biggest rain barrels. Some smart houses also reuse gray water,
defined as water produced by everything but toilets. Gray water can be treated and used for irrigation or flushing toilets. Many smart homes are also starting to incorporate green roofs rooftop landscapes that can provide significant and energy savings indoors, while also cutting runoff and heat pooling in urban areas. The intelligent side of smart houses comes through homes awareness
of the people living inside it. This awareness can come in the form of biometric locks, heating and lighting systems that recognize if rooms are empty, advanced security systems, and camera systems that record everything happening in a home. A smart house can also track energy consumption in real time and suggest ways to save energy. With intelligent systems like these, a smart house can detect when no one is home, it goes into hibernation mode, cutting its energy consumption to
the bare minimum. The house also secures itself against unwatted intruders. When people return, the house senses this through biometric locks, motion detectors, and cameras. It wakes back up to provide lighting, heating, and cooling in the areas where it's needed. Be sure to check out our new video podcast, Stuff from the Future Doing House to Work st up as we explore the most promising and perplexing possibilities of tomorrow. The Housdufforks
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