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Solar power is the change of sunlight energy to electrical energy using concentrated solar power or by the use of photovoltaic cells. Concentrated solar systems use mirrors or lenses to focus sunlight into a thin beam.<\/p>\nSolar power is the change of sunlight energy to electrical energy using concentrated solar power or by the use of photovoltaic cells. Concentrated solar systems use mirrors or lenses to focus sunlight into a thin beam.<\/p>\n
Photovoltaic method uses the photoelectric effect.
\nThe world is in need of cost effective, clean and renewable energy. The reasons range from cost effective nature of solar power to reducing the impact to climate offered by fossil fuels. The prize of other conventional electrical energy source continues to rise while that of solar energy falls. The advancement made by solar technology has made the production of solar power cheap.<\/p>\n
Why solar energy\u00a0<\/strong> Solar energy is the most growing renewable source. Solar power has the following advantages:<\/strong><\/p>\n Matching peak time demand with the output Environmental advantages Flexible locations Scalability and modularity Government incentives Solar energy is sustainable and renewable energy source.<\/p>\n Demerits of low power factor
\nThere are many reasons as to use solar energy in large scale. Majority of the world’s electrical energy comes from fossil fuels such as oil, coal and natural gas. These sources have a number of challenges including security concerns, rising prices and over dependence on importing the fuels from a few countries that have a significant supply of fossil fuel. Most governments are advocating for alternative energy sources. Such sources include solar, geothermal, hydroelectric, biomass and wind power.<\/p>\n![\"\"](\"http:\/\/www.electricsaver1200.com\/blog\/wp-content\/uploads\/2013\/03\/save-electricity.jpg\")
Reduces reliance on fossil fuels
\nThis form of energy does not depend on the expensive and limited fossil fuel. Although the sun varies during the day, a properly designed and configured system can be so reliable.<\/p>\n
\nThe sun gives light energy during the day when the demand of electricity is at its peak, and when the sun sets, demand for electricity goes down.<\/p>\n
\nSolar power generates electricity with a small negative impact on the environment as compared to other forms.<\/p>\n
\nSolar power installations can be at the customers location reducing the cost required in the transmission of electricity.<\/p>\n
\nThe generating capacity and size of a solar system is dependent on the modules installed. Solar power technology is thus versatile and scalable.<\/p>\n
\nVery many countries give incentives for the development solar power and other renewable sources. This includes a low interest rate on loans to finance solar energy systems and subsidies to users.<\/p>\n![\"\"](\"http:\/\/www.electricsaver1200.com\/blog\/wp-content\/uploads\/2013\/02\/Electric-Saver-1200-Power-Save2.jpg\")
<\/a>Power factor Correction
\nTransmission and distribution of electrical energy brings in the question of power factor improvement<\/a>. Most of the loads are inductive hence giving a lagging power factor. A lagging power factor causes an increase in current. The increased current causes more power losses of active power. It is essential to have a power factor close to unity.<\/p>\n
\nIncrease in the kVA rating of an equipment. A small power factor will mean a larger kVA rating of the equipment. This makes the equipment expensive and larger.
\nLow power factor means greater conductor size of the equipment
\nIt causes larger copper losses. This causes low efficiency
\nIt causes more voltage drop in transmission lines, transformers and alternators. This results in poor voltage regulation.
\nLow power factor results in a low handling capacity of the system.<\/p>\n