Never Stop Shining SUN The

Green energy is a special type of renewable energy generated from natural resources taking into consideration, no production of pollution in the environment, a naturally renewed source, and avoiding any operations which could damage the ecosystem. So basically, any energy source that combines the three different terms clean green, and renewable.

The positive impact of green energy is spread to reach all aspects of life environmental, economic and social. it will replace the negative effect on the environment by replacing the traditional energy resources with alternative environmentally friendly energy, the use of green energy will reflect the results on human and animal health. leads to stable energy prices and less effect of the Geo-political crisis. creates new job opportunities for people. More flexible and less dependent on a core centralized energy Source. present better low-cost solutions for human needs so it will be equally available in all parts of the world for all human beings.

Solar power is one of the most common types of renewable, clean, and green energy because it comes from environmentally friendly self renewed, and non-polluting sources. It spreads to a huge scale in the world, since it is the most affordable energy to be used on daily basis.

Solar radiation (electromagnetic radiation) produced by the sun, strikes the earths surface and varies to each spot in the form of sunlight to the naked eye.

Solar technologies, capture sunlight and convert it to a useful form of energy, either electrical or thermal energy for immediate use and storage.

The amount of sunlight that strikes the earths surface in one and a half hours can handle the whole world›s consumption for a full year Since the sun is a powerful source, and the light generated by the sun is the largest source earth receives. taking into consideration that only %50 of the sunlight that reaches the ground is light, and %45 is infrared radiation, plus smaller amounts of other substances.

1973 oil embargo crisis was the first trigger that led the human race to positive permanent solutions saving the environment and ecosystem.

Started in October 1973, when the organization of Arab petroleum exporting countries, plus, Egypt, Syria, and Tunisia started the oil embargo as a response against the United States of America, decisions to resupply the Israeli military. Accompanied by a surprise attack against Israel and the interference of the Russian, and American government.

Negatively, the oil embargo affected the oil price in the USA to jump from $3 a barrel to reach $12. Besides the price increase, different results occur such as the long wait in stations. shortage of gasoline across all the United States gas stations almost %20 were empty.

And one of the most important results of this pressure cart was the political results in 1974 which show the weakness of the consuming community that has been built on some of the biggest countries against the fossil fuels needs. And the other hand, the positive understanding that resulted after the oil embargo, was public awareness of the dependence on fossil fuels, new laws taking the place to avoid what happened in the future, new inventions and research for technologies to find different alternatives to replace fossil fuel and the dependence on middle eastern oil, besides that the biggest impact of the oil embargo showed the negative effect of fossil fuels in the ecosystem and environment.

Jimmy Carter:“Today by directly harnessing the power of the sun, we are taking the energy that God gave us, the most renewable energy that we will ever see, and using it to replace our decreasing supplies of fossil fuels. Solar energy will not pollute our air or water, we will not run short of it, no one can ever embargo the sun or interrupt its delivery to us”.

Solar architecture is an approach to designing buildings of all different types using a variety of strategies and techniques that harness solar energy to improve the way of living reaching energy efficiency and zero-sources consumption buildings.

For a long time ago one of the main concerns of architects is how to reduce the energy that any building requires to create a comfortable atmosphere. The creation of energy-efficient buildings had become an increasing need to create balance which lead architects and designers around the world to take steps to minimize the amount of consumption of energy that new building use. And the emphasis on solar energy and sustainable practices extended globally.

The relationship between architectural design and solar energy is related to both passive solar systems, and the recent innovations in active solar technologies. Throughout, these two different types of solar design are re-creating new thinking for cities and architecture around the world.

Solar Architecture Development: Has been in existence since centuries ago. ancient Greeks, build several solar cities throughout using their knowledge (Olynthus). And in the 11th and 12th centuries, pueblo Indians of North America build several solar communities.

However, these times the development of solar energy merged with architecture without specific knowledge of the qualities and benefits of sunlight energy. In the late 1940s to 1970s due to the cheap price of fossil fuels energy solar energy, materials, and architecture seem expensive, and the awareness of the community for reaching the level of energy. Comfort came to the last end of that.

After 1994 solar energy programs and technologies started to have a potential respective to compete with any other energy source after the promotion and research that come up with the gnu inventions that were carried out by various architects and builder specialists.

Since solar power and architecture are combined, so the passive form of solar design should be modified in building design to create a mixed system between passive and active solar technologies. Therefore, it is important through the design stage in the building to predict how this structure will behave. Through different strategies such as orientation, sunlight accessibility, And insulation.

nowadays, and after the new direction that architecture is looking towards clean renewable, and green energy in their designs. There’s still a problem with that facing this revolution of independence from fossil fuels ruling. the green project construction and whole different stages are still consuming fossil fuels and around %80 of the used energy in any new building is dependent on fossil fuels to reach the zero consumption design at the end.

In conclusion, green energy, in general, is the future of the world by offering a true alternative source to replace fossil fuels, the benefits of green energy resources, are not only limited by the impact on the environment and human beings but also economically by creating thousands of jobs. By developing different green energy systems, we can give the next generations a better sustainable future, without damaging the world we all live in Solar energy is an important option to consider for being economical and environmentally friendly, to save the earth from extinction.

Passive solar systems refer to the solar energy usage in buildings by direct exposure to the sunlight using design elements, strategies, and materials without the evolving of any mechanical or electrical components. Therefore, the design elements and materials can reflect transmit or absorb solar radiation. This system is simple and more efficient in comparison to active solar technologies.

The complete passive solar design contains five main elements:

1- Collector: the element or material responsible for the accessibility of sunlight to the building, should face the true South within °30 and not be shaded by any other building or trees.

2- absorber: act like a storage element for solar energy, must face the direct path of the sunlight.

3- thermal mass: basically, and materials below, and behind the absorber element with an unexposed surface, retain and store the solar energy.

4- distribution: strategic methods to circulate the solar energy from collectors and storage points to different areas of the building. Mainly the three natural solar energy transfer modes are conduction, convection, and radiation.

5- control: the element responsible for controlling solar energy flow to the building, including sensing devices that help open and close the vents, dampers, or shafts.

Active solar technologies refers to a required set up of mechanical and electrical equipment to capture and store, solar energy for future use. Active solar systems use sunlight energy to heat fluid in two different shapes either liquid or air transfer it to a storage system for later use it works on the principles of thermodynamics.

The main three essential components of an active solar system are:

1-solar energy collection: commonly a flat plate collector, simply cover the glass insulated box containing black absorber plates to absorb solar energy and convert it into heat.

2-solar energy storage: it could be a water tank or thermal mass for liquid systems or rock binds to hold air for air systems.

3-solar energy distribution: different equipment for different systems, for example, pumps for liquid systems, or fans for air systems. Helps to circulate the energy around the whole building.

One of the important applications for active solar energy technologies is converting solar radiation into electricity, using photovoltaic cells. The generating of a small electric voltage happens when light strikes the junction between the metal plates. single photovoltaic cell generate around 2 watts. Therefore, by connecting a larger number of individual cells as in solar panels, the generated watts of electrical power will become enormous. So basically large number and dense assembly of cells is required To produce the needed amount of power.