Renewable energy are being embraced readily all over the world thanks to sustained efforts by environmentalists who have been advocating for a reduction in carbon emissions for some years now. Wind and solar power are, without a doubt the most commonly used forms of renewable energy today. There are a number of things on solar energy Missouri residents need to know if they plan on utilizing it.
There are two main ways of getting electricity from the sun: a direct and an indirect approach. The direct approach involves the use of photovoltaics (solar cells). These are designed in a manner that enables them to convert sunlight to electric current directly. The alternative method us known as solar power concentration or SPC. In this approach, mirrors and lenses are used to traps sun rays and focus them into a single thermal beam that is in turn used in electricity generation.
The use of sunlight in electricity provision was initially restricted to small appliances such as calculators to make it possible for these devices to be used even in remote areas. As the technology continued to grow, it was installed to residential homes found in areas that may not be covered by the national grid or to act as a backup to hydroelectric power. Today, this source of electric power is now widely used both in commercial and residential settings.
A photovoltaic cell uses what is referred to as the photovoltaic effect. Direct current (DC) that is generated using these cells tends to fluctuate as the intensity of sunlight changes. In some cases, depending on the intended use, there may be a need for conversion of DC to alternating current, AC. Photovoltaic systems allow for production of electricity at the desired voltage. The AC current can be set to be at a certain frequency.
SPC requires the use of special collectors. One such collector is the parabolic trough. In the collectors are a number of mirrors and lenses. A series of mirrors and lenses produces a thermal beam that is used to heat fluid. Steam is produced from this process and used to turn turbines. Thermal energy may be stored for close to 24 hours hence electricity generation can occur around the clock.
Hybrid systems are another type that are becoming quite common. As the name suggests, these are made of different types of systems that may not necessarily be similar. For instance, they may comprise CSP, photovoltaic cells and a diesel engine. This means that they can run on sunlight both directly and indirectly and can still generate electricity when there is no sunshine. With such a system, interruptions in electricity generation are minimal.
The use of solar power has been exponential with some studies showing that an annual growth of 40% has been experienced. Regions in which most of this growth has been taking place include Europe, Asia and the United States. By 2050, it is projected that at least 27% of world electricity consumption will be contributed by solar (16% will be direct in the form of photovoltaics and 11% as CSP).
Increased demand for renewable energy is due to environmental sustainability and the economic benefits associated with these sources. The environmental benefits mainly result from the fact that renewable sources are cleaner and do not release carbon emissions as is the case with fossil-based fuels. The options are now widely used both in developing and developed countries.
There are two main ways of getting electricity from the sun: a direct and an indirect approach. The direct approach involves the use of photovoltaics (solar cells). These are designed in a manner that enables them to convert sunlight to electric current directly. The alternative method us known as solar power concentration or SPC. In this approach, mirrors and lenses are used to traps sun rays and focus them into a single thermal beam that is in turn used in electricity generation.
The use of sunlight in electricity provision was initially restricted to small appliances such as calculators to make it possible for these devices to be used even in remote areas. As the technology continued to grow, it was installed to residential homes found in areas that may not be covered by the national grid or to act as a backup to hydroelectric power. Today, this source of electric power is now widely used both in commercial and residential settings.
A photovoltaic cell uses what is referred to as the photovoltaic effect. Direct current (DC) that is generated using these cells tends to fluctuate as the intensity of sunlight changes. In some cases, depending on the intended use, there may be a need for conversion of DC to alternating current, AC. Photovoltaic systems allow for production of electricity at the desired voltage. The AC current can be set to be at a certain frequency.
SPC requires the use of special collectors. One such collector is the parabolic trough. In the collectors are a number of mirrors and lenses. A series of mirrors and lenses produces a thermal beam that is used to heat fluid. Steam is produced from this process and used to turn turbines. Thermal energy may be stored for close to 24 hours hence electricity generation can occur around the clock.
Hybrid systems are another type that are becoming quite common. As the name suggests, these are made of different types of systems that may not necessarily be similar. For instance, they may comprise CSP, photovoltaic cells and a diesel engine. This means that they can run on sunlight both directly and indirectly and can still generate electricity when there is no sunshine. With such a system, interruptions in electricity generation are minimal.
The use of solar power has been exponential with some studies showing that an annual growth of 40% has been experienced. Regions in which most of this growth has been taking place include Europe, Asia and the United States. By 2050, it is projected that at least 27% of world electricity consumption will be contributed by solar (16% will be direct in the form of photovoltaics and 11% as CSP).
Increased demand for renewable energy is due to environmental sustainability and the economic benefits associated with these sources. The environmental benefits mainly result from the fact that renewable sources are cleaner and do not release carbon emissions as is the case with fossil-based fuels. The options are now widely used both in developing and developed countries.
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