Renewable energy systems; solar energy system
Introduction
Renewable energy refers to sources of energy that are readily available for use by nature and occur in an existing circle that cannot be destroyed by nature. They are systems of energy provided by nature and recur, making them inexhaustible. With the gradual increase in the rate of pollution and the destruction of tee art’s surface in search of other sources of energy such as coal, the world is directing its shift towards the development of renewable energy sources. Renewable energy sources are relatively clean and effective for use, yet they are ecofriendly and less harmful to the surroundings and humankind. The aim of this paper is to establish a different system of renewable energy systems that are harnessed from the sun. Solar energy is among the most vibrant and most common natural renewable resources that are harnessed today. According to research, solar energy systems have consisted of two major parts, solar thermal systems and solar electric systems. The solar-powered heating systems rely on the capabilities of the heat produced by the sun to channels it to different uses. The most common use of the thermal system is the water heating systems that strictly rely on solar power. The electrical solar powered systems consider the conversion of solar energy mostly light to electricity, which has various uses.
Solar electricity relies on the output of the PV cells to generate energy. Research cites different crystalline silicon cells, which are photoreceptive. The chemical association between the cells relies on a particular wavelength’s solar energy to generate an electronic purse. A thin layer of the electro-voltaic materials is applied to the surfaces during the phase of processing. The effect generates electricity upon interaction with solar energy.
Solar electrical systems
They are also referred to as photovoltaic systems and convert the solar energy from the sun directly to electrical energy. The intensity of sunshine and the length of sunny hours vary differently depending on weather, location of the latitude, and the climatic conditions of the area. According to this, it is even possible to generate electricity during cold days, depending on the intensity of the atmosphere’s solar conditions; however, tropical and equatorial regions are the best places to set up solar energy voltaic systems.
Strength of using the PV systems
Reliability
The PV systems are advantageous systems of energy because of the different features that make them reliable and usable. Solar energy is reliable, especially in tropical regions. The technology used to develop solar panels is mature and ensures the panels’ durability to reduce the overproduction of the solar panels (Hossein et al., 2019). The reliability of the system ensures that the panels are reliable and attract little maintain ace costs. The cost of electricity is limited to a one-time purchase of the solar equipment; there are no other subsidiary costs of the systems, reducing the cost of power.
Cheap and ecofriendly solutions
The most important contribution of the electric systems of solar origin is that the solar panels are environmentally friendly and have limited negative implications to the environment compared to other conventional sources of energy. Marketing solar energy is an effective way of promoting sustainable living and developing an effective model of engineering that helps reduce the rate of pollution while providing energy solutions as needed by users. This encourages people to use simple, cheaper and yet green and friendly electricity sources to curtail the pollution rate of the planet. Solar energy sources are flexible and stable and are an exception to the fluctuation of electricity prices from conventional sources.
Viability
Electric systems that convert solar energy to electricity are effective because they are available almost in daily in the tropical l and desert regions. The users have the assurance of the availability of power every time there is effective solar intensity. It is easy to plan for shortages on cloudy or rainy days by constantly checking the sun’s availability. Users can store energy for use during rainy or sunny days, helping contain its availability.
Drawbacks of the PV system
Reliance on the sun’s availability limits the capacity of the exploration of solar energy in colder regions of the earth. For instance, Polar Regions have lowered solar intensity levels, making it almost impossible to develop it in such areas. Similarly, weather conditions in areas around the tropics and equatorial regions have an irregular cloud cover and favourable conditions for developing the solar electronic systems. These areas are the most productive when making use of the solar systems, reducing the system’s ability to deliver the power of large economic value in a steady process. This reduces the deliverability of the solar electric systems.
The high cost of investing in solar energy projects also slows down the growth rate of the industry. Expensive raw materials and the output of the process have raised the cost of owning solar panels in homes, which reduces the capacity of the expansion of the solar electricity model. In comparison, the development of solar energy reduces the recurring cost of electricity, high cost of associated equipment and the capacity to exploit solar energy in remote areas where the intensity of the sun is at its best limits its development. Few governments have integrated solar systems into their electronic grid because it is considered expensive.
Like any other energy source, photovoltaic systems may use materials that are not ecofriendly. For instance, the development of the solar industry improves the development of the cell industry, which is a major pollutant of the environment. This limits the sustainability of investing a lot in solar energy products to fear the level of pollution it might cost to the local community.
Solar Thermal systems
They are solar energy equipment that unutilized the sun’s heat to carry out different activities in homes. They utilize the heat of the sun in terms of evaporation, drying, and heating. This is the most advanced system of solar energy used across the globe. According to research, the heating systems are mostly local products designed to suit the needs of the locals rather than for external trade. The main principle utilized by the solar heating system is the trapping of the heat to utilize it in other essential times. The following are the different heating system that utilizes the capabilities of the sun.
Solar thermal power plants
Complex technology is used to trap heat to create a high volume of steam using solar energy. It is among the latest t technologies used to harness the viability of thermal energy from the sun to run a steam engine turbine to generate electricity. According to research, such types of power plants have been operating in California for several decades now and serve as the first system of the thermal power plants that have been effectively used to create electricity since the 1980s. According to Avenzoar et al. (2017), thermal power plants powered by the sun are the enormous developments of the solar system as a source of renewable energy. Solar-powered plants use the thermodynamic technique to convert water to steam to run turbines. This has been a tremendous production success of sustainable living with thermal driven power plants (Pitz-Paal, et al. 2013).
Solar water heaters
The development of solar energy techniques has helped develop solar energy use to create heated water using sustainable systems of water heaters. Water heaters are systems derived from the idea of trapping more solar heat that can generate clean and afford abele energy that is effective for the control of pupation and keeping the prices low and affordable to the locals. The real estate industry has demonstrated a proper way of an input in the system to use the technology to lower the costs of living for the company’s users. Among the technologies that are applied to heaters include the thermosiphon techniques. According to research, the thermosiphon techniques utilize warm water to rinse and war water to cool to collect heat from the sun.
Thermosiphon
As the war water gets heated, it expands and rises to the top allowing gravity to pull the cold water away from the top. The flow-out tube directs the water to the heating system until the water is uniformly heated.
Solar drying systems
The concept of solar drying has been mainly utilized in traditional civilizations as a method of preserving food. However, new technological designs have been applied to improve solar radiation by avoiding drying in open space sun. According to Hao et al. (2020), the processor improving solar drying using the hybrid solar drier improved the lemon pieces’ quality being dried in it. Similarly, Camas-Nafate et al. (2019) also indicated that improved solar drying systems such as the Novel Double Collector solar device improved the quality of agricultural products that were dried using the systems compared to drying on the open sun. Although the economic value of the commercial use of solar driers is still questionable, the system is majorly used when there is a need for the high quality of produce upon drying.
Novel Double Collector solar device
Solar cookers
Solar cockers apply the principle of heat collection to prepare food. According to Ademe and Hameer (2019), evaluating a solar cooer with a glazing wiper mechanism could increase the temperature inside the cooker to about 139 degrees, making it hot enough to prepare a meal. According to research, new cookers’ models as this one are important out just as energy severs and as a viable option for maintaining quality and clean air inside the homestead. According to the research, green methodologies of cooking play an important role in improving the wellbeing of the planet and are important concepts of sustainability that the world should encourage. In this case, the efficiency of the box type of the cookers is effective for preparing malls without leaving traces of toxins in the environment.
Solar distillation systems
They are advanced models of solar distillation systems used to create fresh portable drinking water from saline water, making it fit for drinking. These systems of solar equipment are used where water is not favourable for drinking. The variable designs out in the market are not good enough to create commercialized systems of water distillation, making it a less prominent and underdeveloped system. The system requires more research. It has proven to be successful in developing enough drinking water for small communities that live in areas with seawater or brackish water. Aldoori et al. (2019), with effective design and balancing of the different cost constraints, will soon be easier to distil seawater, making it available for drinking.
Solar cooling systems
Huang and Zheng (2018) indicate that the energy requirements for a cooling system’s operation is quite enormous and could be more costly in cold areas since they are integrated with the heating systems. The technology of solar cooling reduces the cost of electricity required to run the cooling system by providing an optional and sustainable and renewable source of energy. According to the research, solar cooling systems can save up to more than 30% of the energy used by another conventional cooling process when a solar cooling system replaces them. The energy efficiency and the clean systems adopted from solar-driven energy can effectively run cooling systems in hot areas at a lower fee than conventional methods.
Conclusion
Solar energy methods are found to be cheaper than all other forms of conventional energy processes. Similarly, the extent of solar energy is readily available by nature for free and in the right way, making it safe for consumption. Solar energy systems are efficient in environmental pollution as they have limited production of toxic substances into the environment making it more convenient for use in homes and offices. The quality of products dried through efficient solar drying systems makes the process cheap and better.