Abstract:This paper presents a study about an autonomous photovoltaic system making use of the novel Lithium Iron Phosphate as a battery pack for isolated rural houses. More particularly, this paper examines the behavior and efficiency of a low-cost isolated photovoltaic system for typical rural houses near Luena in Angola. The proposed system (solar panel, batteries, controller, and inverter) has been projected having in mind the required household daily load of 1,300 Wh and available solar irradiance. The initial bat… Show more
“…They noted that the risk aversion strategy should be introduced in the medium-to-long-term investment, which might lower the impact of uncertainty. The economic analysis aims to study the feasibility of strategy adjustment and upgrade in relevant energy industries, involving many fields, e.g., coal-fired efficiency [38], heat recovery and storage [39], battery storage [40], CO 2 capture [41], electricity supply with renewable energy promotion [42], drying process [43], HVAC (heating ventilation and air conditioning) [44], etc. Meanwhile, the process of energy production [45] and transmission [46] as well as the negative effects on the environment such as pollutant emission [47] and the greenhouse effect [48] should be considered.…”
Section: Energy Policy For Sustainable Developmentmentioning
The global COVID-19 pandemic has had strong impacts on national and international freight, construction and tourism industry, supply chains, and has resulted in a rapid decline in the demand for traditional energy sources. In fact, research has outlined that urban areas depend on global supply chains for their day-to-day basic functions, including energy supplies, food and safe access to potable water. The disruption of global supply chains can leave many urban areas in a very vulnerable position, in which their citizens may struggle to obtain their basic supplies, as the COVID-19 crisis has recently shown. Therefore, solutions aiming to enhance local food, water and energy production systems, even in urban environments, have to be pursued. The COVID-19 crisis has also highlighted in the scientific community the problem of people’s exposure to outdoor and indoor pollution, confirmed as a key element for the increase both in the transmission and severity of the contagion, on top of involving health risks on their own. In this context, most nations are going to adopt new preferential policies to stimulate the development of relevant sustainable energy industries, based on the electrification of the systems supplied by renewable energy sources as confirmed by the International Energy Agency (IEA). Thus, while there is ongoing research focusing on a COVID 19 vaccine, there is also a need for researchers to work cooperatively on novel strategies for world economic recovery incorporating renewable energy policy, technology and management. In this framework, the Sustainable Development of Energy, Water and Environment Systems (SDEWES) conference provides a good platform for researchers and other experts to exchange their academic thoughts, promoting the development and improvements on the renewable energy technologies as well as their role in systems and in the transition towards sustainable energy systems. The 14th SDEWES Conference was held in Dubrovnik, Croatia. It brought together around 570 researchers from 55 countries in the field of sustainable development. The present Special Issue of Energies, specifically dedicated to the 14th SDEWES Conference, focuses on four main fields: energy policy for sustainable development, biomass energy application, building energy saving, and power plant and electric systems.
“…They noted that the risk aversion strategy should be introduced in the medium-to-long-term investment, which might lower the impact of uncertainty. The economic analysis aims to study the feasibility of strategy adjustment and upgrade in relevant energy industries, involving many fields, e.g., coal-fired efficiency [38], heat recovery and storage [39], battery storage [40], CO 2 capture [41], electricity supply with renewable energy promotion [42], drying process [43], HVAC (heating ventilation and air conditioning) [44], etc. Meanwhile, the process of energy production [45] and transmission [46] as well as the negative effects on the environment such as pollutant emission [47] and the greenhouse effect [48] should be considered.…”
Section: Energy Policy For Sustainable Developmentmentioning
The global COVID-19 pandemic has had strong impacts on national and international freight, construction and tourism industry, supply chains, and has resulted in a rapid decline in the demand for traditional energy sources. In fact, research has outlined that urban areas depend on global supply chains for their day-to-day basic functions, including energy supplies, food and safe access to potable water. The disruption of global supply chains can leave many urban areas in a very vulnerable position, in which their citizens may struggle to obtain their basic supplies, as the COVID-19 crisis has recently shown. Therefore, solutions aiming to enhance local food, water and energy production systems, even in urban environments, have to be pursued. The COVID-19 crisis has also highlighted in the scientific community the problem of people’s exposure to outdoor and indoor pollution, confirmed as a key element for the increase both in the transmission and severity of the contagion, on top of involving health risks on their own. In this context, most nations are going to adopt new preferential policies to stimulate the development of relevant sustainable energy industries, based on the electrification of the systems supplied by renewable energy sources as confirmed by the International Energy Agency (IEA). Thus, while there is ongoing research focusing on a COVID 19 vaccine, there is also a need for researchers to work cooperatively on novel strategies for world economic recovery incorporating renewable energy policy, technology and management. In this framework, the Sustainable Development of Energy, Water and Environment Systems (SDEWES) conference provides a good platform for researchers and other experts to exchange their academic thoughts, promoting the development and improvements on the renewable energy technologies as well as their role in systems and in the transition towards sustainable energy systems. The 14th SDEWES Conference was held in Dubrovnik, Croatia. It brought together around 570 researchers from 55 countries in the field of sustainable development. The present Special Issue of Energies, specifically dedicated to the 14th SDEWES Conference, focuses on four main fields: energy policy for sustainable development, biomass energy application, building energy saving, and power plant and electric systems.
“…The solar regulator is a device that is positioned between the solar modules and the batteries, also known as a charge controller. It is the guarantor of the energy level stored in the batteries [12].…”
Section: Dimensioning Of the Solar Regulatormentioning
confidence: 99%
“…The battery capacity must be able to cover all the electrical needs (E c ). When we size the batteries' capacity, we apply the following dimensioning rule [12,14]:…”
Section: Battery Dimensioningmentioning
confidence: 99%
“…Off-grid inverter produces a voltage wave, with an independent frequency from the grid. Not only does the inverter convert DC to AC power, but it may also regulate the PV system if correctly dimensioned according to the battery voltage levels [12,14]. Table 5 summarizes the recommended international standards for inverters intended for photovoltaic applications.…”
Section: Autonomous or Off-grid Inverter Dimensioningmentioning
Renewable energy production has the potential to replace traditional fossil energy and reduce the consumption invoice. In this context, a client wants to realize an autonomous photovoltaic installation for his house that is under construction, located in the city of Msaken, Sousse (Tunisia), in an isolated area of the network of the Tunisian Company of Electricity and Gas (STEG) and will be inhabited by the end of the year 2019. The installation autonomy must be 72 hours in case of bad weather. Therefore, in this chapter, we will determine the technical characteristics of each component of the installation to meet the customer's energy needs and ultimately provide the total price.
The introduction of environmental impact targets around the world has highlighted the need to adopt alternative sources of energy, which can supply the demand and mitigate the damage caused to the environment. Solar energy is one of the main sources of alternative energy, and is considered an abundant source of clean energy. However, to facilitate and encourage investors interested in the installation of photovoltaic energy systems for electricity production, it is essential to evaluate the factors that impact the economic viability of the projects. Therefore, the objective of this research is to present a systematic analytical framework, in order to identify and analyze the main factors that impact the financial feasibility of projects for the installation of photovoltaic energy plants. For this purpose, a systematic literature review was carried out, analyzing the main studies related to the topic and identifying the main factors that may financially affect investments in photovoltaic energy systems. From this review, 29 influencing factors were identified and separated into five categories, namely, location, economic, political, climatic and environmental, and technical factors. The main factors highlighted are the investment cost, power generation, operation and maintenance costs, solar radiation, lifetime, energy tariff, efficiency, electricity consumption, and interest and taxes. The results may assist policy makers, investors, researchers, and other stakeholders to identify the key factors that are being examined in the literature, and to evaluate which ones should be considered in their study to ensure the sustainable development of power generation through the solar source.
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