Production of Electricity in Photovoltaic Systems for Administrative Buildings in Romania, Technical and Economic Analysis

2014 ◽  
Vol 659 ◽  
pp. 431-434
Author(s):  
Cătălin George Popovici ◽  
Marius Costel Balan ◽  
Marina Verdeș ◽  
Vasilică Ciocan ◽  
Andrei Burlacu ◽  
...  
Keyword(s):  
Technological Development ◽  
Classical System ◽  
Electrical Energy ◽  
Point Of View ◽  
Past Century ◽  
Photovoltaic Systems ◽  
Pronounced Increase ◽  
Economic Point ◽  
Electricity Grid ◽  
Solar Radiation Intensity

One of the effects of technological development of all human societies over the past century is more pronounced increase in energy consumption, but more pronounced dependence on fossil fuel consumption, especially as oil, natural gas and coal.The paper presents a comparative analysis of technical and economic point of view of two systems, the first using the classical system (national electricity grid) and the second using the new unconventional technology with photovoltaic systems for administrative building in rural areas.For correct evaluation of the performance of this systems providing electrical energy requires some assumptions about the consumption of electricity, the solar radiation intensity, the energy cost and the climate zones of the location.

THE POTENTIAL ECONOMIC ANALYSIS OF SOLAR HOME SYSTEM WITH SWITCHING METHOD ON HOUSEHOLD ELECTRICITY SCALE

2020 ◽  
Vol 9 (2) ◽  
pp. 125-134
Author(s):  
Kurnia Paranita Kartika ◽  
Riska Dhenabayu
Keyword(s):  
Electrical Power ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Point Of View ◽  
Solar Panels ◽  
Economic Point ◽  
Household Appliances ◽  
Cost Of Energy ◽  
Solar Home System ◽  
Switching Method

This study aims to design a Solar Home System with an Arduino-based Smart Switching system so that the use of electrical energy generated by solar panels can be adjusted without adding power from other electricity sources, such as PLN. Calculation of Leveled Cost of Energy (LCOE) is used as the basis for the switching process that will be carried out to regulate the use of household appliances that are routinely used, regulate electricity consumption automatically, minimize usage, and calculate the effectiveness of electric power usage. The way SHS works is to collect electrical energy from sunlight, then convert DC voltage to AC so that it can be used to run household electronic equipment. To accommodate the adequacy of electrical power, an automatic adjustment is made for household appliances that are routinely used, namely house lights, which includes setting the lights on and off and the number of lights that can be activated. The advantage of this research is that the SHS system is integrated with the automatic setting of the lights installed in the house so that the number of lights on will adjust the availability of electrical energy in the battery. In addition, with the LCOE method, the level of usage can be calculated so that users can save electricity. From the results of usage testing, it is found that the application of this switching technology provides benefits for users because it is no longer dependent on PLN supply. From an economic point of view, based on the calculation of Leveled Cost of Energy (LCOE), there is a kWh value savings of Rp. 77, - for each kWh price or about 4.53% compared to purchasing electricity with prepaid mode.

scholarly journals Techno-Economic Analysis of Power-to-Heat Systems

2021 ◽  
Vol 238 ◽  
pp. 03003
Author(s):  
Alberto Vannoni ◽  
Alessandro Sorce ◽  
Alberto Traverso ◽  
Aristide Fausto Massardo
Keyword(s):  
Large Scale ◽  
Renewable Energy Sources ◽  
Large Fraction ◽  
District Heating ◽  
Electrical Energy ◽  
Energy System ◽  
Heat Pumps ◽  
Point Of View ◽  
Thermal Source ◽  
Economic Point

The heating and cooling sector, responsible for a large fraction of greenhouse emissions, may have a large scale impact on the energy system evolution contributing to smart industrial and domestic electrification; at the same time the recent increase of renewable energy sources installation, posing a threat in terms of grid stability, makes available a considerable amount of clean and cheap electrical energy during peak hours production. Power to heat technologies constitute a promising solution to face both these issues reducing the electric demand variability and decarbonizing the heat production. Large vapor compression heat pumps are a reliable technology able to compete, under the economic point of view, with the heat-only-boilers in order to serve district heating networks. Performance and economic profitability of a compression cycle is strongly dependent on available thermal source and the temperature of water delivered to the network. The present work explores and compares performance and economic indicators under different installation conditions, considering compression heat pumps employing four different fluids: a traditional HCF (R134a) and three natural fluids, ammonia (R717), butane (R600), and propane (R290), often preferred nowadays to HCFs due to the lower global warming potential.

scholarly journals Energy interpretation of solar radiation affects for Artemisa province

2018 ◽  
Vol 2 (2) ◽  
pp. 39-49
Author(s):  
Alixandra Perez Noa ◽  
Antonio Vazquez Perez ◽  
Javier Moreno Hechavarria ◽  
Raynel Diaz Santos
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Theoretical Analysis ◽  
Thermal Energy ◽  
Electrical Energy ◽  
Viable Alternative ◽  
Climatic Variables ◽  
Photovoltaic Systems ◽  
Electricity Grid ◽  
Energy Impact

Solar energy is one of the renewable sources with the best prospects for the future, which can have used directly in two fundamental ways: thermal energy and photovoltaic solar energy. Photovoltaic systems are a viable alternative to diversify the energy base worldwide, being able to inject electrical energy into the grid. The work shows the study of the energy interpretation of solar radiation that affects the province of Artemisa, for its possible use in the generation of electricity, based on the introduction of photovoltaic systems connected to the electricity grid. A theoretical analysis is made about the solar potential and the influence of the climatic variables in the use of it, the territory of the Artemisa province is characterized, where the solar radiation for the generation of electricity is valued, the energy impact is evaluated. Derives from the use of solar radiation that affects the territory to generate electrical energy.

scholarly journals Studi Perencanaan Penerangan Jalan Umum Panel Surya di Kelurahan Gading Kasri Kecamatan Klojen

2021 ◽  
Vol 8 (1) ◽  
pp. 16-21
Author(s):  
Asfari Hariz Santoso ◽  
Ahmad Hermawan ◽  
Muhammad Azam Wian Panantuan
Keyword(s):  
Electric Energy ◽  
Electrical Energy ◽  
Point Of View ◽  
Solar Panels ◽  
Economic Point ◽  
Electric Energy Consumption ◽  
Regional Budget ◽  
Heavy Burden ◽  
The Difference ◽  
Solar Powered

Malang City is a city that has an increasing need for electrical energy in the technological era, which today is very much needed in fulfilling daily life, both for household, social and industrial needs. One of them is the supply of electrical energy for Public Street Lighting (PJU). If you only rely on the supply of electrical energy from grid, this is a heavy burden that must be borne by the Malang City Regional Budget to pay the electric energy consumption bill for the PJU. This study aims to determine the comparison of the use of conventional PJU with solar powered PJU (PJUTS) in the area of ​​Gading Kasri Village, Klojen District, Malang City both in terms of technical installations which include solar panels, batteries, and charger controllers as well as from an economic point of view. That shines for 5 hours every day, the solar panel power specifications are 240 Wp with 37 points of light. Budget calculations using the ACS (Annual cost system) which is obtained in the 16th year the difference from the initial investment costs and revenue from sales met at BEP (break event point) amounting to Rp. 256,761,376.00.

scholarly journals Some Economic Characteristics of Internet Platforms

2020 ◽  
Vol 11 (2) ◽  
pp. 156-167
Author(s):  
Peter Plavčan ◽  
Rastislav Funta
Keyword(s):  
Everyday Life ◽  
Technological Development ◽  
Point Of View ◽  
Economic Point ◽  
Abuse Of Power ◽  
Technology And Innovation ◽  
Internet Markets ◽  
Innovation Economy ◽  
Research Recommendations

Abstract Various internet platforms have rapidly developed into central points of everyday life, for private individuals as well as for companies (often dominated by a single or a few companies). At the same time these internet platforms are advancing into more and more areas of business. This creates the risk of dependency, abuse of power, manipulation, concentration of power, centralization of data and information with corresponding effects on technological development, innovation, economy, society and politics. From an economic point of view, this article examines how the strong market positions of internet platforms arise and can be maintained. The dynamics of these technology and innovation-driven markets and the differences from conventional markets are also discussed. These internet markets have emerged from a series of innovations and are characterized by rapid technological development. Taking into account the economic peculiarities as well as knowledge from innovation and governance research, recommendations are drawn up on how these problems can be dealt with.

scholarly journals Small-Scale Desalination Plant Driven by Solar Energy for Isolated Communities

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3864 ◽  
Author(s):  
Angelica Liponi ◽  
Claretta Tempesti ◽  
Andrea Baccioli ◽  
Lorenzo Ferrari
Keyword(s):  
Solar Energy ◽  
Heat Exchangers ◽  
Electrical Power ◽  
Electrical Energy ◽  
Water Shortage ◽  
Point Of View ◽  
Small Scale ◽  
Solar Panels ◽  
Diesel Generator ◽  
Economic Point

In the last years, an increasing number of countries has been affected by water shortage. Seawater desalination driven by solar energy, which is usually available in arid regions, might be a solution to satisfy the freshwater demand. In this study, the feasibility of a stand-alone multi-effect desalination (MED) plant driven by solar energy for an isolated community was studied. The system was made up of a solar field, a MED unit, and a thermal storage that mitigated solar energy fluctuations. Simulations with different top brine temperature and inclination and number of the solar panels were carried out in Matlab and Aspen Plus on an hourly basis by considering one typical meteorological year for ambient temperature and solar radiation. Two different sources of electrical energy were considered: A photovoltaic (PV) field and a diesel generator. The results were compared from an energetic and economic point of view, by considering the adoption of plastic as a material for MED heat exchangers. The maximum water production was obtained with December as the design month. Polytetrafluoroethylene heat exchangers allowed the cost of water to be reduced up to 9.5% compared to conventional exchangers. The lowest cost of water (7.09 $/m3) was obtained with September as the design month and a tilt angle of 45° with the PV field as the electrical power source.

Sophie Laws, with Caroline Harper and Rachel Marcus. Research for Development: A Practical Guide. New Delhi: Vistaar Publications. 2003. xiii+475 pages. Paperback. Indian Rupees 450.00.

2003 ◽  
Vol 42 (2) ◽  
pp. 170-172
Author(s):  
Mir Annice Mahmood
Keyword(s):  
Policy Research ◽  
Point Of View ◽  
Basic Question ◽  
New Delhi ◽  
Economic Point ◽  
Scarce Resources ◽  
Is Research ◽  
The Subject ◽  
Development Workers

To implement any successful policy, research about the subject-matter is essential. Lack of knowledge would result in failure and, from an economic point of view, it would lead to a waste of scarce resources. The book under review is essentially a manual which highlights the use of research for development. The book is divided into two parts. Part One informs the reader about concepts and some theory, and Part Two deals with the issue of undertaking research for development. Both parts have 11 chapters each. Chapter 1 asks the basic question: Is research important in development work? The answer is that it is. Research has many dimensions: from the basic asking of questions to the more sophisticated broad-based analysis of policy issues. The chapter, in short, stresses the usefulness of research which development workers ignore at their own peril.

Reduction of the Low Voltage Substation Constraints by Inserting Photovoltaic Systems in Underserved Areas

2019 ◽  
Vol 12 (2) ◽  
pp. 105-112
Author(s):  
Benbouza Naima ◽  
Benfarhi Louiza ◽  
Azoui Boubekeur
Keyword(s):  
Low Voltage ◽  
Voltage Drop ◽  
Electrical Energy ◽  
Utilization Rate ◽  
Photovoltaic Systems ◽  
Voltage Distribution ◽  
Medium Voltage ◽  
Pv Systems ◽  
Transformer Substation ◽  
Load Pattern

Background: The improvement of the voltage in power lines and the respect of the low voltage distribution transformer substations constraints (Transformer utilization rate and Voltage drop) are possible by several means: reinforcement of conductor sections, installation of new MV / LV substations (Medium Voltage (MV), Low Voltage (LV)), etc. Methods: Connection of mini-photovoltaic systems (PV) to the network, or to consumers in underserved areas, is a well-adopted solution to solve the problem of voltage drop and lighten the substation transformer, and at the same time provide clean electrical energy. PV systems can therefore contribute to this solution since they produce energy at the deficit site. Results: This paper presents the improvement of transformer substation constraints, supplying an end of low voltage electrical line, by inserting photovoltaic systems at underserved subscribers. Conclusion: This study is applied to a typical load pattern, specified to the consumers region.

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