Solar Energy is becoming an increasingly popular form of alternative energy. Solar energy systems/powers do not create greenhouse gases or air pollution. The use of solar power however can have either a positive, neutral or negative impact on the surrounding environment as solar power reduces or replaces other forms of energy usage that have greater impact on the surrounding environment. The use of solar energy has been limited to providing illumination in remote areas, but recent technological advances have given the potential to create a large amount of electricity by harnessing sunlight in a more efficient way. The availability of sunlight in areas where traditional energy generation methods are unsuitable has increased the popularity of solar energy systems and power generators.
Governments at both the national and state level have also recognised the importance of renewable energy and have provided funding for research and development projects in the field of sustainable power. One breakthrough in the field was the development of PV technology. PV stands for Photovoltaic Power – the technology which allows the conversion of light into electrical power. PV technology is based around the photovoltaic principle – which means that the energy conversion takes place when light is incident upon a PV cell, an array of PV cells are then arranged in a way which produces electricity.
Although PV technology is relatively expensive initially, the cost of solar energy installation on a large scale can be brought down over time. As the technology becomes more readily available to smaller and lower cost producers, the incentive for consumers to install solar energy increases. In the process, the demand for electric power decreases because there is added solar radiation being emitted into the Earth’s atmosphere. This process can potentially have a far reaching impact on climate change, and governments across the world are taking steps to mitigate the effects of the increased use of power generated from fossil fuels will have on climate change.
One very promising source of solar energy is passive solar energy. The basic idea behind passive solar energy is that it takes advantage of the natural process by which sunlight hits the earth’s surface. Through this process, we are able to make use of the inherent properties of the sun, and turn it into solar power. The sun shines out of the ocean and sends rays towards the earth, which are absorbed by the land, creating power. It is also possible to harness the power of the sun through the construction of solar panels.
Photovoltaics is one of the two most common forms of passive solar energy technologies in use today. It involves the conversion of sunlight into electrical energy, using photovoltaics technologies like that used in solar hot water systems. Another common photovoltaics technology used in solar energy is the conversion of visible light into thermal energy. The thermal process is often utilised in the manufacturing of photovoltaics mirrors. Thermal solar energy is particularly suited to developing countries, where energy requirements are high but fossil fuels are low.
https://www.crete-shop.com/
Other methods of solar energy production include the following: fossil fuel burning stoves; the use of wood in generating heat or electricity; and the manufacture of hydrogen peroxide out of ammonia. These methods all use one or more fossil fuels to convert solar energy into electric energy. One of the most modern approaches to converting sunlight into electric power is the use of photovoltaic cells. These cells actually take the light from the sun and change it directly into electricity. A variety of photovoltaic technologies are currently being developed to create a system that is capable of transforming solar energy into electricity in a way that is environmentally acceptable.
There is a lot of controversy around using solar energy for the purpose of heating greenhouses. Many greenhouse proponents argue against using it as an efficient means of heating greenhouses because the absorption of heat from the greenhouse gases causes global warming. This controversy is unfounded, as the evidence that has been accumulated over the years shows that greenhouse gases released from burning fossil fuels are causing the warming of the earth. Global warming may not be eliminated completely, but the evidence does show that it can be controlled and prevented. This evidence comes from measurements taken around the world at various times, which have shown a consistent trend of decreasing temperatures around the world.
One of the primary arguments against heating greenhouses with solar energy is that the temperature of the final product is greater than the initial input. This argument falls apart when one realizes that heat is neither being transferred from the warmed surface to the interior of the greenhouse nor escaping from it due to escaping gases. It is possible for a solar-to-gas heat exchanger to absorb heat, but such systems do not allow for any escape. Thermal mass is the substance needed to successfully transfer solar energy into thermal mass so that it can be used to heat living spaces. Therefore, the argument that “the transfer of heat from the solar thermal mass to the greenhouse atmosphere is impossible” is not at all valid.
μπαταριες φωτοβολταικων