Solar Power In Nevada
Living in Nevada, the sun is an almost permanent companion
. This gives Nevadans a unique possibility to use solar radiation powers for better. In April, a tour of southern Nevada homes shed a few light on the subject of solar powered homes. It explored homes that used both passive and active solar power, thermal hot water systems, and other environmentally qualities. however, except you are a green technologies expert, or took the tour, you may not know the variance between passive and active solar, or how thermal hot water is different than average. permit me help you understand!
Active solar technology is the one that most people might be familiar. It includes having a solar panel that collects the sun's energy and converts it into electricity. These have a battery where energy is stored, so electricity can still be use at night, and to a particular extent, on cloudy days. Solar panels are an excellent alternative to make electricity, principally in remote areas. While they are moderately pricey to set up, and do require a few maintenance, they provide prestigious and free electricity, even in climates far less sunny than Nevada's.
Passive solar technologies are far older than active ones, and involve utilizing the natural heat and light the sun builds, without converting it in any other way. Have you ever realized that after a long, hot day, south-facing rocks, pavement or brick and adobe buildings will radiate warmth? They have spent the day passively collecting solar energy, and are releasing it. a few materials are better at absorbing and storing that heat energy than others are. For example, wood insulates, meaning it will block temperatures, whereas stone will absorb and release temperatures. Homes that are building to exploit passive solar are often create of brick, adobe or concrete.
Cob is another passive solar friendly and ancient building material that is going through a revival of sorts. It is produce of sand, clay and straw, similar ingredients as adobe, but adobe is bake into bricks and stack and cob structures are free-formed while the material is wet. Passive solar homes mostly have many windows lining their south walls, and less so their east and west walls, with little to no windows on the colder north sides. These windows do two things. First, they provide natural light inside the home, one aspect of passive solar. Second, they facilitate heat to come into the home. If the home has a stone tile floor and even walls, that tile will absorb the heat, releasing it later every time the outside temperature drops.
Passive solar homes may be design to be nice in summer while utilizing the sun to warm them in winter. For example, if shutters are close throughout summer months, the home will prevail much cooler. Additionally, the height and angle of overhang may be consider to maximize the windows exposure to low winter sun, but minimize exposure to the high summer sun. Alternatively, I saw an attractive example of somebody planting deciduous trees on the south side of their home. In the winter, the trees had no leaves and so permit in heaps of light and heat. In the summer, their thick greenery provided shade that kept the house nice.
Therefore, that is the drastic difference between active and passive solar technologies. Since passive solar is principally free, it would be clever for any architect or home designer to look over it every time building new homes. Well-designed passive solar homes can greatly decrease their electrical energy requires. Additionally, while active solar is brilliant technology, it still takes many resources to originate. It might be superfluous in a ground with an existing electrical source.
As for thermal water heating, it too is a very basic concept. Homemade thermal water heaters may be as easy as an outdoor water tank painted black, but that is slightly crude for most tastes. However, there is a diversity of styles out there. A few have panels that are painted black and enclosed with glass, with copper pipes filled with water running through them. This water will heat, and is then push by gravity into an insulated storage tank. Some solar water heaters use a similar set up but with tubes filled with anti freeze that are then hook up to a heat transfer loop, where water in a storage tank is heated. Whatever system you use, thermal water heating is extraordinarily affective.
by: Calvin Tan
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