Solar power electricity is only one of several methods that are used to produce electrical power. Scientists state that solar energy could easily supply many, many times the entire world energy demands.
Most of us take the supply of electricity for granted. We are quite contented to simply plug our heaters, cookers, fridges, computers and televisions into the electrical sockets that are located conveniently in the walls in our homes.
Many people assume that their electric power arrives through the electric grid from a power plant that is situated somewhere not far from where we live and then just pay the utility provider for their monthly usage. And this is the end of it.
But there are different types of power plants generating the electrical power that is contributing to the power grid for our use. You will find hydroelectric power plants that generate electricity by utilizing the power of water, nuclear power plants that harness the power of the atom, coal power plants which use our ever diminishing non-renewable fuels and wind farm power plants harnessing the strength of the wind to generate electricity.
These all have the disadvantage of being costly to construct, they have high maintenance costs and also their fuel costs are exorbitant.
Solar power plants are springing up all over the world as different methods are found for harnessing the power of the sunlight to create electricity. Governments are pumping countless dollars into solar plants to test equipment and materials to make it possible for them to create storage for the electrical power that they produce.
solar power electricity falls into the two common categories of terrestrial solar power and space-based solar power.
Solar power panels use a photovoltaic cell to convert light in to an electrical current. This is probably the method that we are most familiar with since it is these solar panels that are used for generating electricity in the home. This method has also been broadly used in electrical power plants all over the world. There are different types of photovoltaic cells that are being tested and manufactured including thin film, monocrystalline and polychrystalline silicon.
Concentrating solar power is a method of using the suns heat to create steam that drives an electrical power turbine. Mirrors which trail the sun are used to focus a large area of sunlight into a compact beam which is then directed at a tower which in turn heats a liquid in the traditional way. Once again various methods and types of mirrors are being tested in this area.
Space-based solar power will use a satellite to collect energy, convert it into electrical energy and then transmit it to earth. This really is still very much in the experimental phase but in the not too distant future we are going to be using electricity that has been beamed down to earth by wireless power transmission using a microwave beam. There are many justifications for using a space based solar power system instead of a terrestrial not least because they would be not dependent on varying weather conditions.
Governments are investing heavily in solar power plants as an alternative method of generating electrical power. They are putting massive sums of money into the development of finding improved techniques for storing the electricity.
This may all seem to be happening on somewhat grand scale when we see a solar power plant with many acres of mirrors and solar panels gathering and directing the suns heat to generate power. Yet at the same time governments all over the world are providing a choice of grants, tax rebates and other incentives to homeowners who would like to build their own small scale solar power electricity systems. In many situations it is quite possible to sell any extra electrical power that you generate back to the utility company.
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