Solar power technologies, the harnessing of the renewable energy of the sun for our electrical power, include the use of either photovoltaics or implementation of passive solar heating. Lets take a look at each.

Photovoltaics PV for solar power are solar cells whose purpose is to convert the light from the sun directly into electricity. These Photovoltaic cells are made of materials that have semi conductive properties. In their simplest forms these solar power cells energize calculators and watches. The more complex photovoltaics can provide the lighting for entire homes and provide solar power to the local electric grid for a large portion of the local community.

Photovoltaics works at any time that the sun shines, although you’ll get more solar power when it is a bright sunny day and when the rays of the sun are shining perpendicularly on the solar power panels. Unlike a solar power system that is used to heat water, the technology of Photovoltaics doesn’t use the rays of the sun to make the electricity. What it does instead is produce the electricity right from the electrons that are freed by the sunlights interaction with the PV cells semi conductive materials.

Its not necessary for you to be a whiz at physics, however, for you to implement this solar power and take advantage of all its benefits. Investing in PV gives you the chance to produce your own power noiselessly, pollution-free and without any moving parts to worry about. Solar power is a renewable energy resource that is entirely clean. Not only that, your solar power system wont run out of fuel unless we run out of sun in which case youd run out of life as would everyone and everything else on the planet.

Solar power will also help the United States or whichever country you are in reduce its dependence on foreign countries for its energy supplies. Many manufacturers of solar power panels and other products might be right in your home town, or at least a nearby community. You can generally support local firms for the batteries, glass and other parts that make up your photovoltaic solar power supply.

The second source of solar power, passive solar power, can heat or your home and light it as well. Residences and commercial buildings that have implemented this passive solar power use simple methods such as windows that face south and building materials that absorb the heat of the sun and then release it slowly. Passive solar power is not about mechanical implementations.

With these simple passive processes and implementations residences can realize a reduction of up to half of their home heating bill. Natural ventilation to cool that home is also part of passive solar power as well.

The basic and most important premise of new home solar power implementation is that the longest wall of your newly constructed home should be built to face true south within 15 degrees. This will provide the most gain in winter solar heating power and the best advantage for summer solar power cooling.
About the Author

James Copper is a writer for www.newcareerskills.co.uk

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This article contains some interesting global warming information.

Humanity is sitting on a ticking time bomb. why? Well, Al Gore answers in a very intelligent way in his movie called ‘An Inconvenient Truth.’ To start with, if the vast majority of the world’s scientists are right, we have just ten years to avert a major catastrophe that could send our entire planet into a tail-spin of epic destruction involving extreme weather, floods, droughts, epidemics and killer heat waves beyond anything we have ever experienced.

Carbon dioxide and other gases warm the surface of the planet naturally by trapping solar heat in the atmosphere. This is a good thing because it keeps our planet habitable. However, by burning fossil fuels such as coal, gas, and oil, and clearing forests we have dramatically increased the amount of carbon dioxide in the Earth’s atmosphere and temperatures are rising. The vast majority of scientists agree that global warming is real, it’s already happening, and that it is the result of our activities and not a natural occurrence.

President Bush has rejected Kyoto, the United States Senate rejected Kyoto 95 to 0, the United States Senate rejected the McCain-Lieberman bill 55 to 43, and there is little hope that Congress will pass mandatory greenhouse gas reductions, at least not in the near future. Paula Dobriansky, under secretary of state for global affairs, and the leader of the U.S. delegation, made the following statement during the 10th round of international climate change negotiations held in Buenos Aires:

“Science tells us that we cannot say with any certainty what constitutes a dangerous level of warming, and therefore what level must be avoided.” Those are very shocking statements, especially considering who made them. But as Upton Sinclair, author of “The Jungle”, puts it- “You can’t make somebody understand something if their salary depends upon them not understanding it.”

That’s why petrol companies will spend millions of dollars to keep the masses in the dark about global warming. At the same time, the evidence is overwhelming and undeniable. We’re already seeing changes. Glaciers are melting, plants and animals are being forced from their habitats, and the number of severe storms and droughts is increasing. The number of Category 4 and 5 hurricanes has almost doubled in the last 30 years.

The most effective way to prevent global warming is to use alternative, clean sources of energy, more efficient use of the existing resources and by regulating the population growth.
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You can find plenty of information on Global Warming and < a href=”http://www.globalwarming-effects.com”> Global Warming Effects at www.globalwarming-effects.com

Solar power is simply the conversion of light energy into electrical energy using devices attached with special materials like silicon.

Man has been late in harnessing the light energy from the radiant sun, a repository of unfathomable power. But nature has been using it for millions of years. Each of leaf of shrub, herb, or tree is a form of solar cell, producing energy for them to grow. This energy production is completed through a chemical process known as photosynthesis. This is the best example of free solar energy.

Then there are real solar panels that one can get almost free. One can get such free solar panels just for asking, for many institutions want to get rid of slightly degraded ones that can be used in households for free. Even though the panels are slightly degraded, these would work fine. Moreover, photovoltaic (PV) panels are not the only type of solar energy.

Solar heating can be set up with glass, cardboard, or wood and insulation. Free glass is available everywhere in the U.S. These can be used to make solar ovens, solar hot water heaters, and hot air heaters.

To build a solar oven costs only $9, which includes $5 for clamps and $4 for the black paint. This is a rugged way of enjoying free solar panel power. One can enjoy rebates and discounts being offered by companies selling solar products. Ordering items in bulk and allying with friends and partners would further reduce costs.

One has to tap all ideas to get the best use at cheapest price. The very idea of solar energy is to utilize the sun

On Day One the President needs to consider the impact of global warming and its connection to the war in Iraq. We need alternative fuel sources to oil and other fossil fuel sources.