Solar power electricity is only one of several methods that are used to generate electrical energy. Experts are convinced that solar power can potentially supply many, many times the total world energy demands.
Most of us take the supply of electricity for granted. We are contented to merely connect our heaters, cookers, fridges, computers and televisions in to the power sockets that are situated conveniently in the walls of our homes.
Many people assume that their electric power comes through the electrical power grid from a power plant which is located somewhere not too far from where we live and then pay the utility provider for their monthly usage. And that is the end of it.
However there are several types of energy plants producing the electricity that is contributing to the grid for our use. You will find hydroelectric power plants that generate electricity by harnessing the power of water, nuclear energy plants that control the energy of the atom, coal electrical power plants that use our ever dwindling non-renewable fuels and wind farm power plants harnessing the power of the wind to create electricity.
All of these have the drawback of being expensive to build, have high maintenance costs and also their fuel costs are exorbitant.
Solar energy plants are cropping up worldwide as various techniques are discovered for harnessing the power of the sun to create electricity. Governments are pumping millions of dollars into photovoltaic plants testing devices and components to enable them to add storage for the electrical power that they produce.
solar power electricity falls into the two general categories of terrestrial solar energy and space-based solar energy.
Solar power panels utilize a photovoltaic cell that will convert light into an electric current. This is probably the method that we are most familiar with as it is these solar power panels that are used for creating electrical power in the home. This technique has also been widely used in power plants all over the world. There are different types of photovoltaic cells that are being tested and produced including thin film, monocrystalline as well as polychrystalline silicon.
Concentrating solar power is a technique of using the suns heat to generate steam which drives an electricity turbine. Mirrors that trail the sun are used to focus a large area of sunlight into a small beam that is then aimed at a tower which then heats up a liquid in the conventional way. Again various methods and types of mirrors are being tested in this area.
Space-based solar power would use a satellite to gather energy, transform it into electrical power and transmit it to earth. This is still in the experimental phase but in the not too distant future we will be using electricity which has been beamed down to earth simply by wireless power transmission with a microwave beam. There are numerous arguments for using a space based solar system instead of a terrestrial not least because they would be not dependent on weather conditions.
Governments are putting money heavily in solar energy plants as an alternate means of generating electricity. They are pumping massive sums of money into the development of finding improved ways for holding the electrical energy.
This might all appear to be taking place on a rather grand scale when we see a solar power plant with many acres of mirrors and solar panels collecting and directing the suns heat to create energy. But simultaneously governments around the world are offering an assortment of grants, tax rebates and other incentives to homeowners who want to construct their own small scale solar power electricity systems. In many instances it can be quite possible to sell the excess electricity that you generate back to the utility company.
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