Technical and Economic Development of the Photovoltaic Electricity in Bulgaria (original) (raw)
Related papers
Renewable Energy Industry in Bulgaria
The article discusses the dynamic development of renewable energy sources (RES) in recent years in Bulgaria and analyzes various problems confronting its integration in the Bulgarian electrical grid system, including: the separation of the Electricity System Operator (ESO) from the National Electric company (NEc), which has been postponed for years, and which, if done, might put a priority on investments in the electrical grid; the failure to introduce the EU Third Liberalization Package, the aim of which is to set the system entirely on market principles; regulations that primarily favour the large and medium RES projects, while leaving a comparatively limited field for genuine local entrepreneurship; lack of possibilities for investments in household installations; political-economic interdependences and lack of transparency, which have characterized a large share of the investment projects. The article devotes attention to the question why environmental organizations, paradoxically and unlike their counterparts in Western Europe, are among the fiercest opponents of RES development in Bulgaria.
Opportunities for Using Renewable Energy Sources in Bulgaria
Contemporary Materials, 2011
Bulgaria has one of Europe's richest renewable energy resource bases. This paper presents an assessment of Bulgarian renewable sources of energy as a stage for increasing the share of these resources in the country's total energy balance, to the end of the improvement of the environment, stimulation of industrial development and creation of new jobs. It considers the theoretical (total) resource potential for solar, wind, both large and small hydro, geothermal, and biomass and waste sources. The paper presents the present status of renewable energy technologies and their installed capacities. The opportunities and constraints for development and use of renewable energy are considered.
Techno-Economic Analysis of a Grid-Connected Residential Photovoltaic System: A Romanian Case Study
2019
Solar energy represents one of the most important renewable sources which may help solving the challenge of decarbonizing the electricity system especially thanks to the development and evolution of technologies. A residential photovoltaic system deserves to be considered an alternative electricity source for households. The aim of this paper is to assess the technical and economic aspects of a grid-connected rooftop solar photovoltaic system used for supplying of household electricity needs in Romania. The results obtained showed the photovoltaic system was feasible when subsidies offered to encourage the adoption of solar energy were available.
Energy Dependence of the Solar Business of the European Union and Bulgaria
Canadian Institute for Knowledge Development (CIKD)
The energy dependence of the European Union (EU) is a huge concern for the Member States. It`s mostly connected to the increasing dependence on imported energy resources. The ability of the EU to meet the energy needs is very limited. Dependency on imported resources is expected to reach 70% in 2020 and dependence on oil - 90%. Europe`s dependence on imported oil will increase drastically. Almost 100% is the Bulgarian dependence on imports of Russian natural gas and oil. The solar business has a great importance for the future of the entire energy sector. Its investigations will allow us to find the potential opportunities and possible threats of its development and will help us to develop its potential. There are many challenges in front of its development connected with legal frameworks, corporate interests and public pressure. Therefore, a successful adaptation is required to the high requirements of regulators and competitive alternative energy source.
Cost-benefit Comparison of On-grid Photovoltaic Systems In Pannonian Parts of Croatia and Serbia
Tehnicki Vjesnik
Subject review The paper presents detailed comparison of solar energy potentials and cost-benefit analysis of installing photovoltaic power systems in Pannonian parts of Croatia and Serbia. Feed-in tariff systems for incitement of the electricity production from on-grid photovoltaic power systems and the resulting benefits on one side and the current investment and the projected lifetime operation and maintenance cost on the other side, have been compared. PVGIS-PhotoVoltaic Geographical Information System have been used for data on solar irradiation and calculation of expected electricity production from PV systems with rated power up to 10 kW, 30 kW, 300 kW and over 300 kW (according to the different feed-in tariffs in Croatia). The results indicate substantial differences in PV markets development in Croatia and Serbia and the necessity to improve feed-in tariffs and legislation in Serbia in order to make the installation of PV systems feasible.
Technical and Economic Aspects of Photovoltaic Conversion of Southern Poland
Ecological Chemistry and Engineering S, 2014
The article presents the results of a 13-year tests and analysis of performance and energy and electrical charge yield for typical photovoltaic modules made of different absorbers. Modules were installed on the south wall of Opole University building (at kard. B. Kominka Street). Registered in this period (2001-2013) values energy and charge of tested modules are presented in reference to 1 Wp their nominal power and to 1 m2 of PV modules. Their annual and monthly distributions, with particular emphasis on the seasonal changes of its parameters and phenomena of aging and degradation of the PV modules structure were shown. In the final part of the article was presented an economic analysis of the profitability of investment in 20 kWp grid connected PV system with and without implemented the program to support investment in renewable energy, which respect to the newly implemented in Poland Act on RES.
Renewable Energy, 2020
This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
Cost-Benefit Analysis of Different Photovoltaic Systems in Croatia, Hungary, Serbia and Slovenia
The aim of paper is evaluation of different categories and different solar cell technologies of photovoltaic systems. Therefore, two types of user categories are considered: solar home system users (i.e. small scale system) and energy producer investors (i.e. large-scale system) as well as five modules technologies, more specifically: monocrystalline, polycrystalline, CIS, amorphous and high-efficiency monocrystalline. In order to perform cost-effectiveness calculations for four countries in Danube region (Croatia, Hungary, Serbia and Slovenia) the technical data and relevant prices were based on measurements, regulations as well as available web-database.
Economic Analysis of Grid-Connected PV System Regulations: A Hungarian Case Study
Electronics
The energy demand of mankind is constantly growing, thus the utilization of various renewable energy sources, which also reduces negative environmental effects, is becoming more and more important. Because of the achievement of climate protection targets, photovoltaic (PV) energy has an increasing role in the global energy mix. This paper presents the technical and economic aspects of different photovoltaic system configurations designed to suit the Hungarian renewable energy regulations. In this study, five alternative PV configurations were examined for systems with a capacity from 50 kW to 500 kW, related to low- and medium-voltage installations. This article also introduces and explains the Hungarian economic PV and Feed-in-Tariff (FiT) regulations, where three different investment alternatives are analyzed with the help of economic indicators. This study could help stakeholders in the market (e.g., the Hungarian industry sector and local governments) understand the possible dir...
5624600d5a80fRenewable Energy Sources and Pricing of Electrical.pdf
2014
This report deals with some characteristics of the electric power system of Bulgaria. Emphasis is put on the benefits of joining the small photovoltaic plants in the tourist areas of the country. As an example of that the town of Pomorie is examined. Data on the quality of the consumed electric energy and the price per a four-member family are presented. The amount of the solar radiation for the town of Pomorie is audited through the PVGIS (Photovoltaic Geographical Information System). Discussed are the types of photovoltaic panels offered on the market by manufacturers in terms of the received power efficiency. Developed is a model of creating a photovoltaic system on the roof of a house, inhabited by several families. Calculations are made on the cost of the electricity generated by the proposed system. Compared is the cost of the electricity supplied by the electricity provider EVN (Energie Vernünftig Nutzen) in the town of Pomorie to the one that will be obtained using the proposed PV-system.