scholarly journals Analysis of Building Archetypes for Optimising New Photovoltaic Energy Facilities: A Case Study

2021 ◽  
Vol 13 (21) ◽  
pp. 12249
Author(s):  
Jesica Fernández-Agüera ◽  
Samuel Domínguez-Amarillo ◽  
Nerea García-Cortés ◽  
Miguel Ángel Campano
Keyword(s):  
Energy Demand ◽  
Energy Production ◽  
Lower Income ◽  
Production Potential ◽  
Photovoltaic Energy ◽  
Self Sufficiency ◽  
Consumption Rates ◽  
Disadvantaged Neighbourhoods

Fuel poverty rates are high in southern Europe, particularly in social housing, despite the enormous potential for capturing solar power inherent in the roofs of apartment buildings. The in situ generation, distribution and consumption of photovoltaic energy carry obvious advantages including vastly improved efficiency attendant upon the reduction in distribution-related losses and costs, and the energy empowerment afforded lower income communities. The primary drawback is the imbalance between photovoltaic production patterns and users’ actual needs (peak consumption vs. peak generation). That mismatch is difficult to reconcile without resorting to energy storage or net metering, both of which entail grid involvement and greater management complexity. The present study introduces a methodology for analysing residential archetypes to determine the values of the parameters essential to optimising photovoltaic energy production and use. The aim is to determine where excess generation can be shared with other users in the vicinity and optimally pool residential rooftop facilities to meet community-scale energy demand, ultimately enhancing such disadvantaged neighbourhoods’ self-sufficiency. The case study discussed defines archetypes for just such a neighbourhood in Madrid, Spain. The solar energy production potential of the example is promising for its application in large southern European cities, with self-sufficiency rates obtained ranging from 15% to 25% and self-consumption rates from 61% to 80%.

scholarly journals Production potential of biodiesel, methane and electricity in the largest steamed rice industry in Rio Grande do Sul, Brazil: case study

2021 ◽  
Vol 27 (2) ◽  
pp. 130-136
Author(s):  
Willian Nadaleti ◽  
Vitor Lourenço ◽  
Grzegorz Przybyła ◽  
Piotr Kardasz ◽  
Radosław Wróbel ◽  
...  
Keyword(s):  
Energy Production ◽  
Rice Bran Oil ◽  
Electric Energy ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Production Potential ◽  
Grain Processing ◽  
Self Sufficiency ◽  
General Studies

Abstract The potential for energy production from effluents and husks generated in grain processing in the rice parboiling industries in Brazil is capable of promoting energy self-sufficiency in the sector, through the production and use of syngas and biogas. However, the production of methane from residues of the rice parboiling industries is still little explored by academic studies, in general studies on the potential of methane production by this same type of effluent are found in the south of the country, however, the same is not true for the production of biodiesel from rice bran oil. The objective of this study was to determine the production potential of biodiesel, methane and electric energy of the largest parboiled rice industry in Rio Grande do Sul, located in the southern region of the country. According to this study, the rice parboiling industry located in Rio Grande do Sul, Brazil, has a production potential of 1.2∙102 m3/day of biodiesel, 2.93∙104 Nm3/day of methane and 1.89∙105 kWh/day of electricity. Despite being a significant and high potential, which may reduce the financial expenses of the industry regarding the purchase of energy from concessionaires, it is not able to promote its energy self-sufficiency. At the same time, it would be necessary to add the energy production potential of the rice husk gasification syngas highlighted in other studies

Extreme Depopulation in the Spanish Rural Mountain Areas: A Case Study of Aragon in the Nineteenth and Twentieth Centuries

Rural History ◽  
2004 ◽  
Vol 15 (2) ◽  
pp. 149-166 ◽  
Author(s):  
FERNANDO COLLANTES ◽  
VICENTE PINILLA
Keyword(s):  
Small Proportion ◽  
Agricultural Production ◽  
Textile Industry ◽  
Energy Production ◽  
Mountain Areas ◽  
Second Homes ◽  
Self Sufficiency ◽  
Nineteenth And Twentieth Centuries ◽  
Rural Depopulation

The phenomenon of rural depopulation has been an intense and centuries-long process in the mountain areas of Aragon in Spain. Throughout the nineteenth century, the traditional economic model of these territories broke down due to the crisis suffered by seasonal sheep migration, the non-viability of the old forms of agricultural production based on self-sufficiency and the destruction of the scattered textile industry. The new scenario offered some possible alternatives in sectors such as livestock, timber, mining and energy production or the activities associated with tourism and second homes. However, it is only these latter activities that have demonstrated some capacity to alter significantly the demographic tendencies, and even then they have done so in a somewhat delayed fashion and in a way limited to a small proportion of the geographical areas under study.

scholarly journals Prospective Climate Change Impacts upon Energy Prices in the 21ST Century: A Case Study in Italy

Climate ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. 121 ◽  
Author(s):  
Bombelli ◽  
Soncini ◽  
Bianchi ◽  
Bocchiola
Keyword(s):  
Climate Change ◽  
21St Century ◽  
Energy Demand ◽  
Energy Production ◽  
Energy Systems ◽  
Global Climate Models ◽  
Electricity Price ◽  
Climate Projections ◽  
Price Fluctuations

The assessment of the effect of the electricity price on energy production is important when studying the profitability and benefits of energy systems. The demand and price of electricity depends upon societal and economic development, but it is subject to a seasonal, weather-dependent variability, and possibly to long-term variation under climate change. Here, we developed a methodology to model the energy demand and electricity price in response to gross domestic product (GDP), temperatures, and random factors, usable for the purpose of cost/benefit analysis of production systems. The method was applied to the case study of the Italian electricity market, showing acceptable capacity of modelling recently observed price fluctuations. Then, we gathered climate projections until 2100 from three global climate models of the IPCC AR5, under RCP2.6, RCP4.5, and RCP8.5, and we produced future scenarios of price fluctuations for two reference decades, half-century 2040–2049, and end-of-century 2090–2099. Our scenarios displayed a potential for the reduction of energy demand in winter, and an increase in summer and spring, and for the similarly-changing electricity price throughout the 21st century. We discuss the application of our model with the specific aim of the projection of future hydropower production, as controlled by climate, hydrology, demand, and price constraints, with examples from recent studies. Our results provide a tool for modelling the behaviour of energy systems based upon knowledge of external factors, usable for further investigation of energy systems, such as hydropower, and others, taking into account the key variables affecting energy production and energy price.

scholarly journals Application of pilot technologies for energy utilization of agricultural residues in Northern Greece

2007 ◽  
Vol 11 (3) ◽  
pp. 125-134 ◽  
Author(s):  
Anastasia Zabaniotou ◽  
Vicky Skoulou
Keyword(s):  
Energy Production ◽  
Alternative Fuels ◽  
Energy Utilization ◽  
Northern Greece ◽  
Agricultural Industry ◽  
Mediterranean Countries ◽  
Production Technologies ◽  
Land Filling

The enormous potential of agro biomass can be exploited to produce sustainable bioenergy. Proper management and further exploitation of this potential could lead to economically profitable approximations and solutions for the agricultural industry and even energy production industry. Gasification in-situ with energy production or pyrolysis of the above mentioned residues, under a non-oxidizing atmosphere for alternative fuels production could be a solution to the environmental problems that land filling or conventional combustion could create. The present work focuses on combustion and pyrolysis of cotton gin residues in Greece, as an alternative way of energy production. The purpose of presentation of a case study of the two alternatives methods (combustion and gasification or pyrolysis), by using cotton ginning waste as biofuel, is to show the appropriateness of new bioenergy sources by coupling them with energy production technologies. These technologies can be applied in northern Greece as well as in other Balkan or Mediterranean countries. .

scholarly journals Autonomous photovoltaic observatory station integrated with UAV - a case study

2018 ◽  
Vol 49 ◽  
pp. 00043 ◽  
Author(s):  
Slawomir Gulkowski ◽  
Agnieszka Skomorowska
Keyword(s):  
Energy Demand ◽  
Energy Production ◽  
Energy Usage ◽  
Large Area ◽  
Pv System ◽  
Power Stations ◽  
Wide Range ◽  
The World ◽  
Aerial Vehicle

Over the past few decades the World has experienced a revolution in Energy production from solar technology, mostly from photovoltaics. On the other hand, an increasing number of unmanned aerial vehicle (UAV) applications are also noticed. Combining photovoltaics and UAVs reveals many opportunities for researchers and renewable energy industry. Responding to the challenge of large area observations at remote locations, the conception of an autonomous photovoltaic station integrated with UAV has been proposed. The essential advantage of the station is its energetic autonomy. The station is movable and can be installed in various locations all over the World. It can be implemented for a wide range of applications, i.e. examining hydroelectric, solar or wind power stations. The simulation results of energy production from PV system mounted on the station have been shown in this work. Several issues were taken into account for the calculations: tilt and azimuth of PV modules, irradiation at case study location and energy demand of the station’s equipment. The energy usage of five and eight hours daily of UAV flights was estimated. Energy balance was calculated.

SenCity – Evaluating Users’ Experiences of Intelligent Lighting for Well-Being in Smart Cities

2018 ◽  
pp. 60-67
Author(s):  
Henrika Pihlajaniemi ◽  
Anna Luusua ◽  
Eveliina Juntunen
Keyword(s):  
Case Studies ◽  
Smart City ◽  
Smart Cities ◽  
Well Being ◽  
Evaluation Methods ◽  
Data Analyses ◽  
Sense Of Security ◽  
System Data

This paper presents the evaluation of usersХ experiences in three intelligent lighting pilots in Finland. Two of the case studies are related to the use of intelligent lighting in different kinds of traffic areas, having emphasis on aspects of visibility, traffic and movement safety, and sense of security. The last case study presents a more complex view to the experience of intelligent lighting in smart city contexts. The evaluation methods, tailored to each pilot context, include questionnaires, an urban dashboard, in-situ interviews and observations, evaluation probes, and system data analyses. The applicability of the selected and tested methods is discussed reflecting the process and achieved results.

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