The Future Of Solar PV (Photovoltaic) Energy

1. The Problem
2.The Solution
3. The Results
4.The Benefits

An Investment in the Future

1. The Problem:
Traditional sources of electrical power generation are running out as production will peak in the next decade but demand will continue to rise. Energy prices will continue to rise at a higher rate as well as the number of outages during peak hours. There is the obvious problem of the pollution we are causing to our environment.
From my perspective, the world's energy needs vary greatly; there is no clear single solution to the problem of supplying the world's energy.
All forms of energy production have issues associated with them, i. e. -
1. Coal - Pollution/Strip Mining
2. Natural Gas - Cost and Lack of Infrastructure
3. Hydro - Limited Availability/Environmental Concerns
4. Wind - Limited Site and Resource Availability
5. Solar PV - Higher Cost
6. Nuclear – Waste disposal
2. The Solution:
Solar PV (Photovoltaic) systems effectively deliver three to five hours of peak power per day at roughly 10 Watts per square foot. Not one square inch of new land would be required to site PV. Theoretically, there are adequate residential, commercial, Government rooftops, and parking structures in California to power a substantial percentage of our State's electrical needs from solar.
In Southern California, solar produces a net energy gain in approximately three years. This means that within three years, PV systems begin producing more energy than the energy spent in producing the system and its raw materials. Best of all, the energy produced cost zero emissions.At today's prices, a typical solar system costs approximately $6.00/watt, installed and has an operating life in excess of 25 years. For all intents and purposes, maintenance and operating costs are minimal. Now there are systems available for rent. Companies such as Citizenre at www.jointhesolution.com/rethink-solar allow you to create solar power of a unit that is installed, maintained and monitored by them. You merely pay the monthly rental fee for you clean electricity which is the same price as you pay the electric company for you electricity. Also they allow you to lock in a rate now for up to 25 years so you are paying the same price throughout the entire contract.
3. The Results:
Solar energy increases the diversity of power and adds stability to a fossil fuel favored energy structure, while reducing greenhouse gas emissions.
4. The Benefits:-- Solar can be quickly deployed at the point of use, reducing the need for additional transmission and distribution infrastructure, and cost thereof.
-- Solar operates most efficiently at mid day, when grid demand is at its peak. By decreasing the strain during peak hours, the longevity of existing power plants and infrastructure is extended, lowering further the cost of energy production.
-- By deploying solar over time the cumulative effect of the installed base is impressive. Given its 25-year life, within 10 to 20 years, a respectable portion of California's energy could be supplied by solar.
-- Once installed, the cost is fixed. In comparison to traditional sources of energy, the fuel cost is nonexistent, and operational costs are limited. A solar system's cost is amortized over its life, there are no rate hikes due to fuel or operating cost increases.
5. An Investment in the Future:
Solar energy is part of the solution and is a key to America's long-term energy supply. After all, fossil fuels have a long history of issues with respect to stability of supply and cost. The Outlook of Solar Power is Bright!1. Solar will sustain its torrid growth, as costs continue to fall. The solar market has grown at ~40% per annum in recent years, and there are many reasons to think that it will sustain, if not exceed, that clip in 2009. Solar panel prices have followed a predictable experience curve since the 1970’s, with prices dropping by 30% with each doubling of manufacturing capacity. As the silicon-dominated industry moves to thinner and higher-efficiency wafers, increases manufacturing scale, improves wafer and cell processing technologies, sees polysilicon prices return to rational levels, and migrates production to lower-cost countries –- costs will continue to drive towards parity with grid rates, and solar will become increasingly more attractive. Indeed, a solar panel for your home, whether brand new, second hand or rented, is definitely a wise choice as it helps you in minimizing your electric bills, helps the worlds growing energy needs and is especially an environmentally healthy and helpful choice.
If you are interested in more information on solar energy go to
http://solarizeitnow.com/




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Solar Panels- Concept and History

A solar panel is basically a device that enables the collection of and conversion of solar energy into electrical energy or even heat.
The Concept of Solar Panels
Solar panels are also known as photovoltaic panels and the atoms that are present in these panels are excited by the action of the sun's energy. These atoms are present in a silicon layer that lies between two panels known as protector panels.
A formation of electric current takes place as a result of the action of the electrons from the aforementioned, excited atoms, and these are then used by a myriad of external devices. The history of solar panels dates back by hundreds of years, when their sole purpose was to heat the water for use in homes. Many-a-times specially shaped mirror is used for the concentration of light onto a tube of oil. Due to this action, there is a heating up of oil and as these heated oil travels through a vat of water, it instantly results in the boiling of this water. The steam that is a resultant of this process of boiling is used to turn a turbine for the generation of electricity.
The History of Solar Panels
It was in the year 1839 that the photovoltaic effect was discovered by Antoine – Cesar – Becquerel, a French physicist. His experiment in this regard involved the placement of an electrolyte cell in an electrolyte solution; two metal electrodes made up the electrolyte cell.
When this device was exposed to sunlight, Becquerel found that the generation of electricity saw a marked increase. It was in 1883 that Charles Fritts coated sheets of selenium with a thin layer of gold and built the first genuine solar cell. Over a period of time many experiment were conducted and discoveries were made when it came to solar cells. Albert Einstein also published his thesis on the photoelectric effect, during this time and also won the Nobel Prize for his research.
It was space satellites that made large scale use of solar electrical energy for the first time. By 1980, the United States of America, produced a solar cell which provided an efficiency of nearly twenty percent, this efficiency was increased to around twenty four percent in the next two decades and currently there are a few companies that are manufacturing solar cells that offer efficiency levels of nearly twenty eight percent
The Working of Solar Panels
Pure silicon forms the basic element of all solar panels as its makes for an ideal platform that aids transmission of electrons. This material is used on the plates that form a solar panel. Solar panels are also created by combining silicon panels with other elements, with negative or positive charges.
The Silicon atoms are exposed to the bombardment of photons when negative plates of solar cells are faced towards the sunlight. Once all free electrons are drawn away from the plates, enough electricity is generated to power various electronic appliances that do not require too much electricity to power them.
Features and Types of Solar Panels
Basically there are three types of solar panels, namely mono-crystalline solar panels, polycrystalline solar panels, and amorphous solar panels. The life expectancy of solar panels depends on the type of solar panels selected by you; generally it’s around twenty years or so.
Solar panels do not require sustained maintenance for their upkeep although; if lead acid batteries are used then they must be checked every six months and topped up with distilled water if required. If you are looking for a solar panel for your needs and do not know what size to go for, then the best way would be to calculate your average consumption of electricity on a daily basis. This would give you a fair idea of what kind of solar panel to go for. In the long run, solar panels will reduce your electricity bill by a long way, and hence the option of using solar energy must be explored in a positive manner.




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Solar: Will It Ever Power Our Vehicles?

As solar power has matured as a technology, companies have started applying it to more than just houses. Acting as an energy platform for our transport was an obvious application.
Solar: Will It Ever Power Our Vehicles
As an active technology, one of the first uses for solar power was on NASA spacecraft. Although not used for propelling the crafts, interested parties immediately started thinking about using solar power for getting us around in our daily lives. Alas, there were so many problems with the technology, including efficiency issues, that the idea never really gained much footing. With the massive popularity of hybrid vehicles, companies and research institutes are revisiting the idea.
Vehicles getting all of their energy from the sun are not a viable option at this time or for the near future. The problem is you simply can’t produce enough energy to meet the power needs. Until technology is developed to make the sunlight conversion process much more efficient, there really is not an answer to the problem. This technological advance, however, may not be far away.
Quantum dots are a form of nanotechnology that is being developed by numerous companies for solar power applications. This technology essentially tries to create tiny solar robots to convert the sunlight to energy. Millions fit within small areas and the hope is the efficiency conversion rate will go through the roof. The companies are looking to create a platform where the robots would exist in paint. Yep, the paint on your home and car may eventually produce all the energy needed.
In the meantime, solar power applications are being developed with a focus on hybrids. The basic idea is to use solar power to provide energy to the batteries powering the hybrid cars. Put another way, it is a step towards the ultimate goal. Honda does not discuss its research, but is believed to have built a facility solely for this purpose and is dumping money into it hand over foot.
The creation of viable solar vehicles is dependent on the advances of the underlying technology. Solar hybrids should be on the market relatively quickly. The big breakthrough, however, will be when viable commercial applications are developed using nanotechnology.



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