scholarly journals Solar Energy Data Analytics: PV Deployment and Land Use

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 417 ◽  
Author(s):  
Francesco Mancini ◽  
Benedetto Nastasi
Keyword(s):  
Solar Energy ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Electricity Production ◽  
Renewable Electricity ◽  
Building Integrated Photovoltaics ◽  
Electricity Mix ◽  
Final Energy Consumption ◽  
Policy Scenarios

EU targets for sustainable development call for strong changes in the current energy systems as well as committed protection of environmental resources. This target conflicts if a policy is not going to promote the compatible solutions to both the issues. This is the case of the additional renewable energy sources to be exploited for increasing the share in the electricity mix and in the gross final energy consumption. Solar energy is, currently, the cheapest solution in Southern European Countries, like Italy. In this paper, thanks to the availability of three open databases provided by National Institutions, the authors compared the historic trends and policy scenarios for soil consumption, electricity consumption, and renewable electricity production to check correlations. The provincial scale was chosen as resolution of the analysis. The deviations from the policy scenarios was then addressed to identify the demand for policy recommendations and pathways to promote in order to achieve the target for renewable electricity share as well as the reduction in soli consumption trend in 2030. The role of renewables integrated in the existing contexts, such as building integrated photovoltaics, is considered a key driver for solving this issue.

scholarly journals Is a 100% Renewable Energy Economy Possible in the Light of Wind Silence Occurrences?

2018 ◽  
Vol 24 (2) ◽  
pp. 47-65
Author(s):  
Jakub Edward Zaleski
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Energy Production ◽  
Consumer Behaviour ◽  
Renewable Energy Sources ◽  
Electricity Production ◽  
Renewable Electricity ◽  
Production And Consumption ◽  
Hourly Data ◽  
Energy Economy

Abstract This article is focused on analysing the present state of renewable electricity production and consumption coverage in Germany, concentrating on the intermittence of wind and solar energy production and considering the significance of the wind silence phenomenon. The development and promotion of renewable energy is a major goal set out by politicians of which one example is the German plan “Energiewende”. The author examines wind and solar energy complementarity and attempts assessing the possibility of basing Germanys’ electricity production on renewable energy sources, without significant advancements in technology and changes in consumer behaviour. Using the analysis based on hourly data of consumption and production by source of electricity in Germany in 2016, the research addresses the issues of renewable energy source effectiveness, intermittence and points to the critical matter of periodical unavailability of wind and solar energy.

scholarly journals Solar Energy in Cuba: Current Situation and Future Development

2019 ◽  
Vol 6 ◽  
Author(s):  
Jorge Morales Pedraza
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Energy System ◽  
Electricity Production ◽  
Small Island ◽  
Energy Sources ◽  
Energy Capacity ◽  
Energy Mix

Cuba, a small island in the Caribbean Sea with a total land area of 109.884 km2 and a population of around 11.423 million, has no significant proved oil, gas and coal reserves. Also use, in a very limited manner, some of the four main renewable energy sources available in the country for electricity production, generating just 50,1 GW/h or 4,04% of the total electricity consumed in 2015 (20.288 GW/h). In 2016, electricity consumption fell to 15.182 GW/h; this means a reduction of 25% in comparison to 2015. In 2016, the participation of renewable energy sources in the energy mix of the country reached 4,65%. The different renewable energy sources available in the country are hydropower, wind power, solar photovoltaic, and bioenergy. In 2015, out of Cuba’s total 566 MW of renewable energy capacity installed, 83% of the total was in the bioenergy sector. In 2016, the renewable energy capacity installed in the country reached 642 MW. According to the decision adopted by the Cuban government, the participation of renewable energy sources in the energy mix of the country should reach 24% in 2030, an increase of almost 20% compared to the level reported in 2016. Among the different renewable energy sources available in the country, solar energy is one of the main contributors to the national energy system, and also one of the leading supplier of energy to independent users all over the country.

scholarly journals Produkcja energii elektrycznej ze źródeł odnawialnych w krajach Unii Europejskiej i w Polsce w kontekście koncepcji zrównoważonego rozwoju

2017 ◽  
Vol 17(32) (2) ◽  
pp. 126-135
Author(s):  
Łukasz Kozar
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Data Bank ◽  
Electricity Production ◽  
Energy Sources ◽  
Local Data ◽  
Renewable Sources ◽  
Regional Aspect ◽  
The Eu

The article presents changes that occurred in the production of electricity from renewable energy sources in the EU-28 and in Poland in the years of 2010-2015. The analysis of the changes was based on the data from Eurostat and the Local Data Bank. Based on the indicator of the share of electricity generated from renewable sources in gross electricity consumption, Poland in the period under discussion, was characterized as one of the highest dynamics of change among all EU countries. In addition, the article analyzes the situation concerning the production of electricity in Poland in the regional aspect. From the taken analyzes, it is clear that in all voivodeships, apart from Małopolskie voivodeship, in 2015, more electricity was produced from renewable sources compared to 2010. In the period under discussion, the share of electricity production from renewable sources in total electricity production also increased by 99% in Poland.

scholarly journals Barriers and Solutions for Increasing the Integration of Solar Photovoltaic in Kenya’s Electricity Mix

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5502
Author(s):  
Dominic Samoita ◽  
Charles Nzila ◽  
Poul Alberg Østergaard ◽  
Arne Remmen
Keyword(s):  
Geothermal Energy ◽  
Trade Balance ◽  
Electricity Generation ◽  
Renewable Energy Sources ◽  
Electricity Production ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Storage Solutions ◽  
Electricity Mix ◽  
National Trade

Currently, Kenya depends mainly on oil, geothermal energy and hydro resources for electricity production, however all three have associated issues. Oil-based electricity generation is environmentally harmful, expensive and a burden to the national trade balance. The rivers for hydropower and their tributaries are found in arid and semi-arid areas with erratic rainfall leading to problems of supply security, and geothermal exploitation has cost and risk issues amongst others. Given these problems and the fact that Kenya has a significant yet underexploited potential for photo voltaic (PV)-based power generation, the limited—although growing—exploitation of solar PV in Kenya is explored in this paper as a means of diversifying and stabilising electricity supply. The potential for integration of PV into the Kenyan electricity generation mix is analysed together with the sociotechnical, economic, political, and institutional and policy barriers, which limit PV integration. We argue that these barriers can be overcome with improved and more robust policy regulations, additional investments in research and development, and improved coordination of the use of different renewable energy sources. Most noticeably, storage solutions and other elements of flexibility need to be incorporated to balance the intermittent character of electricity generation based on solar PV.

scholarly journals Legal Pathways to Coal Phase-Out in Italy in 2025

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5605 ◽  
Author(s):  
Matteo Fermeglia ◽  
Paolo Bevilacqua ◽  
Claudia Cafaro ◽  
Paolo Ceci ◽  
Antonio Fardelli
Keyword(s):  
Power Plants ◽  
State Of The Art ◽  
Renewable Energy Sources ◽  
Energy Generation ◽  
Electricity Production ◽  
Coal Power Plants ◽  
Coal Power ◽  
Phase Out ◽  
Existing Data

This contribution aims to provide an in-depth outlook of the phase-out of coal-fired energy generation in Italy. In particular, this article analyzes the state-of-the-art with regard to both the current role of coal generation and the performance of the main legal and regulatory tools as implemented in Italy thus far to ensure the closure of all coal power plants by 2025 as announced in the Italian National Climate and Energy Plan. Based on existing data and scenarios on both electricity production and demand trends, this article unfolds the marginal role played by coal-fired generation in the Italian energy mix. In addition, this paper aims to highlight the outstanding technical uncertainties and regulatory hurdles in the way towards de-carbonization of energy generation in Italy. This paper argues that several remarkable improvements are needed in order to avoid over-generation (especially through natural gas), to upscale the penetration of renewable energy sources, and develop the necessary infrastructures to adequately deliver on the full phasing-out of coal within the expected timeframes.

scholarly journals Legal nature of the Power Purchase Agreement at the feed-in-tariff

1970 ◽  
pp. 169-174
Author(s):  
Nataliia Nykytchenko ◽  
Katerina Gordienko
Keyword(s):  
Electricity Market ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
State Regulation ◽  
Operating Conditions ◽  
Electricity Production ◽  
Energy Sources ◽  
National Commission ◽  
Renewable Electricity ◽  
Feed In Tariff

The article analyzes the procedure of buying the electricity according to the feed-in-tariff (FIT) and the model («Typovyi») Power Purchase Agreement, in connection with the introduction of a new electricity market and the order of Renewable producers` business. Specific features of the model Power Purchase Agreement conclusion between Renewable producers and the Guaranteed Buyer are defined. It also analyzed the differences between the model Power Purchase Agreement and the oriental agreement as well as researched a mechanism of investors protection who would invest in the Renewable projects. The authors of the article have made a comparative analysis of the different Power Purchase Agreement`s editions, in particular: actual model agreement form and oriental agreement according to which the Renewable producers are no longer work but the provisions contained therein make it possible to analyze the process and the reasons for adoption of the new one form. Effectiveness of a new electricity market introduction from July 1, 2019 depends on the regulation of the activities for all the market participants. Special operating conditions have been provided for the Renewable electricity producers. In particular, with the introduction of a new market, Renewable electricity producers began to sell electricity to the Guaranteed Buyer, the successor of the SE «Energorynok». However, in order to implement the new procedure of work for the Renewable producers, the Regulator needed to approve certain regulatory acts. With this purpose, in September 2018, the National Commission for State Regulation in the Fields of Energy and Utilities published a draft resolution «On approval of regulatory acts regulating the activity of a guaranteed buyer and purchase of electricity at feed-in-tariff», which contained the form a new model contract for the sale of electricity at feed-in-tariff between a Guaranteed buyer and an entity that produces electricity using alternative energy sources as well as the order of purchase and sale of electricity at FIT. As rightly expected, the approval of these regulations is an important element not only for functioning of the new electricity market, but also for the continued growth of electricity production from renewable energy sources and attracting international investments.

scholarly journals Cost-Benefit Analysis of Small-Scale Rooftop PV Systems: The Case of Dragotin, Croatia

2021 ◽  
Vol 11 (19) ◽  
pp. 9318
Author(s):  
Mladen Bošnjaković ◽  
Ante Čikić ◽  
Boris Zlatunić
Keyword(s):  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Electricity Production ◽  
Small Scale ◽  
Optimal Size ◽  
Pv System ◽  
Load Curve ◽  
Pv Systems ◽  
Hourly Data ◽  
Daily Load

A large drop in prices of photovoltaic (PV) equipment, an increase in electricity prices, and increasing environmental pressure to use renewable energy sources that pollute the environment significantly less than the use of fossil fuels have led to a large increase in installed roof PV capacity in many parts of the world. In this context, this paper aims to analyze the cost-effectiveness of installing PV systems in the rural continental part of Croatia on existing family houses. A typical example is a house in Dragotin, Croatia with an annual consumption of 4211.70 kWh of electricity on which PV panels are placed facing south under the optimal slope. The calculation of the optimal size of a PV power plant with a capacity of 3.6 kW, without battery energy storage, was performed by the Homer program. The daily load curve was obtained by measuring the electricity consumption at the facility every hour during a characteristic day in the month of June. As most of the activities are related to electricity consumption, repeating during most days of the year, and taking into account seasonal activities, daily load curves were made for a characteristic day in each month of the year. Taking into account the insolation for the specified location, using the Internet platform Solargis Prospect, hourly data on the electricity production of selected PV modules for a characteristic day in each month were obtained. Based on the previous data, the electricity injected into the grid and taken from the grid was calculated. Taking into account the current tariffs for the sale and purchase of electricity, investment prices, and maintenance of equipment, the analysis shows that such a PV system can pay off in 10.5 years without government incentives.

Effect of Load Growth on PLTH Baron Techno Park Performance

2018 ◽  
Vol 1 (4) ◽  
Author(s):  
Mychael Gatriser Pae ◽  
Tegar Prasetyo ◽  
Suharyanto Suharyanto ◽  
T. Haryono ◽  
Ridwan Budi Prasetyo
Keyword(s):  
Power Plant ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Electricity Production ◽  
Electrical Load ◽  
Plant System ◽  
Hybrid Power ◽  
Load Growth ◽  
Hybrid Power Plant

The reliability of stand-alone and hybrid power plant systems was dependent on electrical loads that the system must supply. For example, on renewable energy sources (RES), Reviews of those systems needs to be calculated well before the development process. One of the most important processes in the initial calculation is the electrical load that must be supplied by the system. The electrical load has a major influence on the amount of power generating capacity. A power plant that has higher electricity production than the load to be fulfilled was considered capable of meeting the system electrical load requirements. However, in terms of the reliability, it is considered as a loss because it will affect the life of the components and the high cost of operating from the system. Therefore, this research discusses the effect of load growth on hybrid power plant system performance of Baron Techno Park. The result of the research shows that the total electricity production of Baron Techno Park hybrid power plant system is 319.695 kWh/year with Net Present Cost (NPC) is $560.077 and the cost of energy (COE) is $0.64/kWh. Total electricity consumption of the PLTH Baron Techno Park is 67.413 kWh/year with total excess electrical energy is 245,547 kWh/year. Load growth of 5%, 10%, 15%, and 20% of the total current load affect the consumption of electric energy, excess electrical energy, and COE. The higher the load growth will affect the total electricity consumption that is increasingly higher so that the total excess electrical energy is lower. This research found that the performance of the system is not influenced by load growth. The highest performance of the system is resulted by the wind turbine of 72.62%, followed by solar panels of 18.82%, and biodiesel of 8.56%.

scholarly journals The Effect of Plants on the Energy Output of Green Roof Photovoltaic Systems in Tropical Climates

2021 ◽  
Vol 13 (8) ◽  
pp. 4505
Author(s):  
Chila Kaewpraek ◽  
Liaqat Ali ◽  
Md. Arfeen Rahman ◽  
Mohammad Shakeri ◽  
M. S. Chowdhury ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Production Efficiency ◽  
Renewable Energy Sources ◽  
Green Roof ◽  
Electricity Production ◽  
Energy Output ◽  
Pv System ◽  
Pv Systems ◽  
The Future

The rapid rise in the number of fossil fuel uses over the last few decades has increased carbon dioxide (CO2) emissions. The purpose of implementing renewable energy solutions, such as solar, hydro, wind, biomass, and other renewable energy sources, is to mitigate global climate change worldwide. Solar energy has received more attention over the last few decades as an alternative source of energy, and it can play an essential role in the future of the energy industry. This is especially true of energy solutions that reduce land use, such as off-grid and on-grid solar rooftop technologies. This study aims to evaluate the energy conversion efficiency of photovoltaic (PV) systems in tropical environments. It also explores the effect of growing plants beneath PV panels. Two identical grid-connected PV systems—each containing five solar panels—were installed. The overall power production of each PV system was about 1.4 kWp. All the collected data were processed and analysed in the same way and by the same method. The PV systems were installed in two different environments—one with the possibility of growing the plants beneath the PV panels (PViGR module) and one with no possibility of growing the plants beneath the PV panels (PViSR module). The experiments were conducted in the Bo Yang District of Songkhla, Thailand over a 12-month period. Our findings indicate that green roof photovoltaic (GRPV) systems can produce around 2100 kWh of electricity in comparison to the 2000 kWh produced by other solar energy systems. Thereby, growing plants beneath PV panels increases electricity production efficiency by around 2%. This difference comes from the growing of plants underneath GRPV systems. Plants do not only help to trap humidity underneath GRPV systems but also help to cool the PV panels by absorbing the temperature beneath GRPV systems. Thus, in the production of electrical energy; the system was clearly showing significant differences in the mentioned results of both PV solar systems, which are evident for great energy efficiency performances in the future.

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