Potential of integrating power generation with solar thermal cooling to improve the energy efficiency in a university campus in Saudi Arabia

2018 ◽  
Vol 31 (1) ◽  
pp. 130-154 ◽  
Author(s):  
Mohannad Bayoumi
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Energy Generation ◽  
Total System ◽  
Master Plan ◽  
University Campus ◽  
King Abdulaziz University ◽  
Micro Level ◽  
Solar Thermal Cooling ◽  
Thermal Cooling

Along with the rapid ongoing developments and expansions of the King Abdulaziz University campus, it is sensible to rethink the way electrical and cooling energy is generated and to explore methods to increase energy efficiency in the academic facilities. A conceptual energy master plan for the entire campus has been developed to achieve feasible results which require a substantial reduction in energy demand in the first place. It combines strategies at the master plan level and the micro level (case study: a single building). Establishing a correlating link between the macro and the micro level is imperative to improve the efficiency of the total system. Therefore, possibilities for centralized and decentralized (building related) energy generation have also been investigated to improve the efficiency of the total system. After outlining the general strategies for renewable energy generation on the master plan level in the university campus of King Abdulaziz University, this study explores the potential of increasing the energy efficiency of an individual building. Key energy saving actions have been simulated using IDA-ICE to assess the possibility to release the load on the shared existing and future energy infrastructure. Besides roof-integrated solar panels, the capacity of carport incorporated energy generation has also been analyzed. The results of the study indicate possible substantial savings on the current consumption of non-renewable energy resources and a combined generation of electrical energy and solar thermal cooling can lead to high coverage fraction.

scholarly journals Potential Analysis of Hybrid Renewable Energy Systems for Self-Sufficient Residential Use in Germany and the Czech Republic

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4185 ◽  
Author(s):  
Luis Ramirez Camargo ◽  
Felix Nitsch ◽  
Katharina Gruber ◽  
Javier Valdes ◽  
Jane Wuth ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Czech Republic ◽  
Rural Areas ◽  
Energy Generation ◽  
Research Area ◽  
Total System ◽  
Single Family ◽  
Large Area ◽  
The Czech Republic ◽  
Hybrid Renewable Energy

Independence from the power grid can be pursued by achieving total self-sufficient electricity supply. Such an energy supply model might be particularly interesting for settlements located in rural areas where enough space is available for energy generation installations. This article evaluates how and at what cost electricity demand of residential users across Germany and the Czech Republic could be covered by hybrid renewable energy generation systems consisting of photovoltaics, micro-generation wind turbines and batteries. High-resolution reanalysis data are used to calculate necessary system sizes over a large area by simultaneously accounting for the temporal variability of renewable energy. For every potential location in the research area, the hybrid system requirements for clusters of 50 self-sufficient single-family houses are calculated. The results indicate no general trend regarding the size of the respective technologies, although larger areas where PV-wind power complementarity enables lowering the total system costs and required storage capacities were determined. Assuming that the cluster of households could be constituted and depending on the location, the total installation and operation costs for the proposed systems for a lifetime of 20 years range between EUR 1.8 Million and EUR 5 Million without considering costs of financing. Regions with the lowest costs were identified mainly in the south of Germany.

scholarly journals PV Energy Performance in a Sustainable Campus

Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1874
Author(s):  
Rosaura Castrillón-Mendoza ◽  
Paul Andrés Manrique-Castillo ◽  
Javier M. Rey-Hernández ◽  
Francisco J. Rey-Martínez ◽  
Gabriel González-Palomino
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Energy Performance ◽  
International Standards ◽  
Photovoltaic System ◽  
Environmental Research ◽  
Dynamic Monitoring ◽  
Energy Integration ◽  
University Campus ◽  
The University

The challenge of photovoltaic integration as the basis of an energy generation system has been achieved and carried out by the University Autónoma de Cali, Colombia, using an avant-garde energy technology model. This innovative sustainable campus not only fulfills its purpose as an advanced model of a renewable energy integration system, it also aims at environmental research, e-mobility, and energy efficiency. This paper describes how the university implements the technological innovation of integrating the photovoltaic system installation in a university campus, showing its relevant contribution to the electricity generation in the campus buildings by analyzing the different electrical parameters together with the system performance indicators. The implementation of technological solutions has allowed the generation of a quantity of renewable energy within the campus, supplying a sustainable energy response based on energy efficiency and carbon emissions savings. This innovation has been applied following the international standards for the evaluation of the energy performance of photovoltaic systems (IEC 61724), reaching very optimal values for this type of renewable solution. In this paper, the dynamic monitoring of several parameters has been carried out in order to analyze the energy performance, and an energy simulation has been used to achieve optimal solutions and to obtain the perfect modeling of the system. This study shows how to evaluate the performance of an integration of a photovoltaic system in a smart university campus, according to international standards. It achieves complete viability due to its economic savings, energy efficiency and reduction of carbon emission.

scholarly journals Renewable Energy Generation in the Energy Balance: the Forecast until 2035

2021 ◽  
Vol 2021 (2) ◽  
pp. 23-32
Author(s):  
Tetyana V. Pimonenko ◽  
Oleksii V. Lyulyov ◽  
Yana O. Us ◽  
Aleksy S. Kwilinski ◽  
Anastasiya P. Nazarenko ◽  
...  
Keyword(s):  
Climate Change ◽  
Energy Efficiency ◽  
Renewable Energy ◽  
Energy Policy ◽  
Bibliometric Analysis ◽  
Energy Generation ◽  
Primary Energy ◽  
Energy Conditions ◽  
Renewable Sources ◽  
Renewable Energy Generation

This paper summarizes the arguments and counterarguments within the scientific discussion on developing national economic energy efficiency under optimizing renewable energy generations. This study aims to forecast renewable energy generation until 2035 under the current Ukrainian conditions. The relevance of this scientific issue is the urgency to combat the climate change consequences under economic development. A bibliometric analysis was conducted in the study frameworks to systemize the scientific treatises and indicate main research directions in energy investigation. The source of publications was the Scopus database. The VOSviewer software tools were applied to visualize the obtained results. In turn, to gain the research goal, the authors forecasted the primary energy generations from renewable sources using Autoregressive Integrated Moving Average (ARIMA) model. The study sample was the shares of primary energy from renewable sources in Ukraine. The data covers 1985-2019. The results of bibliometric analysis allowed identifying main directions in investigating the energy policy such as renewable energy development under climate change; bioenergy; reducing carbon emissions towards economic growth; energy security and policy; management in the energy sector; satisfaction of the energy demand and improving the energy conditions for consumers. In the empirical part of this study, the forecast findings showed the growing tendency in primary energy generation from renewable sources. However, the share of primary energy from renewable sources would increase by 1.16 times (3,62 %). Therefore, the authors concluded that the target of the Energy Strategy of Ukraine of 25 % the share of primary energy from renewable sources would not be gained until 2035. This study highlights the necessity to develop renewable energy in Ukraine. The obtained results could be the base for further investigations devoted to elaborating the energy policy towards developing energy efficiency and green development.

Overcoming stereotypes of renewable energy

2019 ◽  
pp. 124-136
Author(s):  
Victor D. Gazman
Keyword(s):  
Renewable Energy ◽  
Empirical Analysis ◽  
Energy Generation ◽  
New Paradigm ◽  
Financial Instrument ◽  
Promising Direction ◽  
Investment Projects ◽  
Power Stations ◽  
New Generation ◽  
The Impact

The article considers prerequisites for the formation of a new paradigm in the energy sector. The factors that may affect the imminent change of leadership among the energy generation are analyzed. The variability of the projects of creation and functioning of power stations is examined. The focus is made on problematic aspects of the new generation, especially, storage and supply of energy, achieving a system of parity that ensures balance in pricing generations. The author substantiates the principles of forming system of parities arising when comparing traditional and new generations. The article presents the results of an empirical analysis of the 215 projects for the construction of facilities for renewable energy. The significance and direction of the impact of these factors on the growth in investment volumes of transactions are determined. The author considers leasing as an effective financial instrument for overcoming stereotypes of renewable energy and as a promising direction for accelerated implementation of investment projects.

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