Advantages And Disadvantages Of Photovoltaic Basics

One extremely popular source of alternate energy is solar. This energy has been around for a large sum of years and is quite well known as solar panels are being installed on buildings and houses every day. Solar power relies on the enormous amount of energy that comes from the sun in the form of heat and light. This energy arrives in packets called photons, which hit the atoms in solar cells placed on houses and open fields. These photons knock out the electrons which then flow through the cell’s circuit, this, in turn, creates electricity (Figure 1). An electrical panel attached to the circuit then transfers this energy into the house to power lights and appliances. The reason this method of creating power is so popular is due to its many evident advantages. One of which includes the environmental benefits solar panels have. These benefits

explains, “A solar panel works by allowing photons, or particles of light, to knock electrons free

“The photovoltaic effect is the basic physical process through which a photovoltaic cell converts sunlight into electricity.”(Seale E, 2003) Sunlight is composed of photons, the photons contain various amounts of energy corresponding to different wavelengths of light. When the light strikes the photovoltaic cell, it will be reflected, absorbed or pass through the two side photovoltaic cell. One side has a positive electric charge while the other side has a negative charge. Light striking crystals such as silicon or germanium, in which electrons are usually not free to move from atom to atom within the crystal,

The silicon and conductors in the solar panel converts the light energy into a current of electricity called Direct Current, which flows through to your inverter

There are two main forms of solar power: The use of photovoltaic, or PV, cells, and the use of thermal energy from the sun. Photovoltaic cells exploit the photoelectric effect, which converts the protons from the light of the sun into electrons, which can be converted into energy. Photovoltaic energy accounts for fifteen gigawatts of global energy, which is equivalent to fifteen large electric power plants. Also, the production of PV cells has increased by two thousand times over the past twenty years, and it is expected to continue to grow. Solar-thermal energy takes the thermal energy created by the sun and turns it into electricity. Although it only only produces as much energy as one large power plant, solar-thermal energy has many domestic uses. It can not only be used for electricity, but also for solar heating, which uses sunlight to heat up houses. Solar power has already proven to be a reliant source of energy, and it will only continue to improve in technology and

Commonly, renewable energy is defined as energy which is able to be captured from existing natural resources that are replenished rapidly, such as flowing water, sunshine, wind, geothermal heat flows and ocean [2]. Renewable energy technologies are required to provide technologies to use one or several renewable energy resources. There are some different types of renewable energy technologies, which include solar energy, bioenergy, hydropower, wind energy, geothermal energy and tidal energy. This thesis project will focus on the solar photovoltaic which is currently one of types of solar energy technologies, and this technology using photovoltaic cells to converts sunlight directly into electricity.Solar photovoltaic system can generate electricity from sunlight through using PV modules, and the system can be integrated into building designs, installed on rooftops, or large scale power plant. With the development of photovoltaic technologies, solar photovoltaic capacity has been increased from 3.7 GW (2004) to 177GW (2014) [3]. Figure 2 shows this change from 2004 to 2014, there is a big trend of increase in these years. The increase of PV capacity can reduce the carbon emission and provides more job opportunities. It also helps to reduce air pollution and make a friendly environment for living. One of the common PV system is

Photovoltaic systems use solar cells in the generation of electricity through conversion of solar optical energy into electrical energy directly. Solar cells are made out of semi-conductor materials such that they produce electricity when solar radiation is incident on them (Armentrout and Patricia Armentrout).

Solar panels use small photons packets of energy from rays of sun to generate electricity. Solar panels are made up of photovoltaic cells - (photo = light and voltaic = electricity).

For solar cells, a thin semiconductor wafer is especially treated to structure an electric field, positive on one side and negative on the other. At the point when light energy strikes the solar cell, electrons are knocked loose from the atom in the semiconductor material. In the event that electrical conductors are joined to the positive and negative sides, structuring an electrical circuit, the electrons can be caught as an electric current – that is, electricity. This electricity can then be utilized to power a load, for example, a light or a device.

Did you know that the sun is one of the most key sources of renewable energy today? Solar Energy could be the answer to the world’s problems if we use it right. Solar energy is a very clean renewable source of energy, that could stop global warming. Solar energy is created from the sun’s light and heat. It has many positive aspects of usage. One of the most positive aspect of solar energy is how clean it is, it’s one hundred times better than using fossil fuels.

A solar cell is a device which produces electricity through the conversion of light energy, through the photovoltaic effect. The photovoltaic effect is a chemical and physical phenomenon, and relates to the creation of electrical current within a material when it is exposed to light. Solar cells are considered to be photovoltaic, despite whether the source of light is produced artificially, or is from the sun.

Solar photovoltaic (PV): The transmutation of sunlight directly into electricity by using photovoltaic cells. Photovoltaic systems can be lodge on rooftops, integrated at the top of building designs and vehicles, or scaled up to megawatt scale power plants.

Solar cells or Photovoltaic cells capture the energy from the sun and convert it to electrical energy (Singh and Ravindra 2012). They come in all different sizes. They can be small like a phone or large like a house. Each has a different output and efficiency levels. Yet, what things increase or decrease such efficiency levels?

Therefore, the use of solar energy panels is environmentally friendly. Solar energy panels, also called photovoltaic panels, are made of materials that concentrate the sun's rays. When the sun's rays struck a PV panel, a number of the energy can be consumed by the panel.

A Silicon solar PV Cell is a device which is made up of semiconductor materials that produce electricity when exposed to light energy. [1] The doping process of a Silicon based PV Cell works by the photovoltaic material converting the light energy, photons, it absorbs into electrical energy. [1]