Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

The electricity produced by direct hitting of sunlight on photo – voltaic cells, is calledsolar electricity.Solar ElectricityWhen sunlight strikes on photo-voltaic solar cells, solar electricity is produced. That is why this is also referred to as Photo Voltaic Solar, or PV Solar.Principles of Solar ElectricityGeneration of electricity by using solar energy depends on the photo voltaic effect. In photo voltaic effect, semiconductor p n junction produces electric potentia when it is exposed to su

Conversion of light energy in electrical energy is based on a phenomenon called photovoltaic effect. When semiconductor materials are exposed to light, the some of the photons of light ray are absorbed by the semiconductor crystal which causes a significant number of free electrons in the crystal. This is the basic reason for producing electricity due to photovoltaic effect. Photovoltaic cell is the basic unit of the system where the photovoltaic effect is utilised to produce electricity from li

The effect due to which light energy is converted to electric energy in certain semiconductor materials is known as photovoltaic effect. This directly converts light energy to electricity without any intermediate process. For demonstrating the photovoltaic effect let us assume a block of silicon crystal.The upper portion of this block is doped with donor impurities and lower portion is doped with accept or impurities. Hence the concentration of free electrons is quite high in n-type region compa

A standalone solar PV system is a system that uses solar photovoltaic (PV) modules to generate electricity from sunlight and does not rely on the utility grid or any other source of electricity. A standalone solar PV system can provide power for various applications, such as lighting, water pumping, ventilation, communication, and entertainment, in remote or off-grid locations where grid electricity is unavailable or unreliable.A standalone solar PV system typically consists of four main compone

Solar power plants are systems that use solar energy to generate electricity. They can be classified into two main types: photovoltaic (PV) power plants and concentrated solar power (CSP) plants. Photovoltaic power plants convert sunlight directly into electricity using solar cells, while concentrated solar power plants use mirrors or lenses to concentrate sunlight and heat a fluid that drives a turbine or engine. In this article, we will explain the components, layout, and operation of both typ

There are three kinds of expenditures involved in generating electricity. These are fixed cost, semi-fixed cost, running or operating cost.Fixed Cost of ElectricityIn every manufacturing unit there is some hidden expenditure which fixed. This is same for manufacturing one unit or thousand units of the items. In electric generating station like manufacturing unit, there are some hidden costs which independent of the quantity of electricity produced. These fixed expenditures are mainly due to an a

Economics of Power GenerationIn all new engineering enterprises of this era, the question of cost is of utmost importance. It is the role played by an engineer to achieve the desired technical result, with minimum cost that distinguishes him from a non engineer who can also possibly attain the same result, but at what cost? In a power generation industry we are usually confronted with a situation where we have to make a choice between equipment of high cost with high efficiency and their low cos

The unit of electric power is watt, and hence unit of electrical energy is watt – second since energy is the product of power and time. The watt – seconds is referred as joules. One joule means the work required to be done for transferring one-ampere current in one second from one point to another point of potential difference one volt. So one-joule electrical energy equals to the product of one volt, one ampere and one second.Joule which equals to one watt – second is a very small unit of energ

When we generate electricity in steam power plant we have to burn fuel like coal, petroleum oil or flammable gases. The fuel can be considered as such a raw material for producing electricity in any kind of thermal power generating plants. So the quality of the fuel used in a thermal power generating plants plays a vital role in that sense. The calorific value of a fuel determines the quality of the fuel. We define the calorific value of a fuel as the amount of heat produced by complete combusti

What is Economic Dispatch?Economic dispatch (also known as economic load dispatch or merit order) is defined as an online process that allocates the generation among the available generators to fulfill the load demand that helps to minimize the total generation cost.The economic dispatch outlines efficient and dependable methods for operating generation facilities, considering operational constraints on production and transmission systems, to serve consumers.The economic dispatch determines the