scholarly journals Possibility of Using Solar Energy for the Creation of Carbon Neutral Hotels in Mediterranean Countries

2019 ◽  
Vol 9 (1) ◽  
pp. 1 ◽  
Author(s):  
John Vourdoubas
Keyword(s):  
Solar Energy ◽  
Mediterranean Region ◽  
High Efficiency ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Heat Pumps ◽  
Energy Requirements ◽  
Solar Photovoltaic ◽  
Energy Technologies ◽  
The Mediterranean

Mitigation of climate change requires the increased use of renewable energy sources instead of fossil fuels in all sectors. Hotel buildings utilize large amounts of energy consuming mainly electricity while the use of renewable energy sources is rather limited. Solar energy is abundant in the Mediterranean basin and it is currently used for heat and electricity generation in many applications. Various solar energy technologies are mature, reliable and cost-effective. Use of solar thermal energy, and solar photovoltaic energy combined with the use of high efficiency heat pumps, can cover all the energy needs for domestic hot water, space cooling and electricity in summer-operating hotels in the Mediterranean region. A summer-operating hotel located in Crete, Greece with a covered surface of 3000 m2 has a specific annual energy consumption of 150 KWh/m2. The capital cost of the required sustainable energy systems for covering all the annual energy requirements in the hotel including a solar thermal system with flat plate collectors, a solar photovoltaic system with crystalline-Si modulus and high efficiency heat pumps has been estimated at 95.7 €/m2 while the annual CO2 savings due to the use of benign energy systems in the hotel have been calculated at 68 kgCO2/m2. It is concluded that the use of solar energy technologies in summer-operating hotels in the Mediterranean region could cover all their energy requirements, while it is technically feasible, economically profitable and environmentally desirable.

scholarly journals Solar Photovoltaic System in India: Challenges and Barriers

2021 ◽  
Vol 9 (VI) ◽  
pp. 1060-1063
Author(s):  
Pushpendra Arya
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Energy Systems ◽  
Clean Energy ◽  
Photovoltaic System ◽  
Energy Sources ◽  
Solar Photovoltaic ◽  
Indian Government ◽  
Solar Photovoltaic System ◽  
Main Component

In today’s world we are going towards the major share of renewable energy to reduce the effect Green House Gases (GHG) in the atmosphere. The limitation of energy sources which produces clean energy, the rise in the pollution in the environment, and programs initiated by the Indian Government have encouraged lots of open field researches on Solar Photovoltaic Systems or Solar Energy Systems. As producing the clean and renewable energy is main component of energy sector, solar photovoltaic could be considered as an alternative in various regions. Although Solar Photovoltaic does have different advantages and can be used for various purposes, but also there are several challenges for it. This paper took a whole overview of the advantages and uses of Solar Photovoltaic and barriers in their adaptation/opportunities.

scholarly journals Characterization of photovoltaic solar energy systems in a Colombian region

2021 ◽  
Vol 9 (2) ◽  
pp. 157-174
Author(s):  
Francy Nelly Jiménez García ◽  
Luisa Fernanda Echeverry Cardona ◽  
Olga Lucia Ocampo López ◽  
Alejandra Maria Restrepo Franco
Keyword(s):  
Solar Energy ◽  
Energy Systems ◽  
Small Scale ◽  
Photovoltaic Systems ◽  
Solar Photovoltaic ◽  
Evaluation Instrument ◽  
Sources Of Information ◽  
Photovoltaic Energy ◽  
Secondary Sources ◽  
Different Characteristics

Objective: To establish a baseline about the solar photovoltaic energy systems installed in the department of Caldas, Colombia. Methodology: The solar photovoltaic installations were identified from secondary sources of information, followed by field visits to collect information on the characteristics of these systems. An evaluation instrument was designed consisting of 6 categories which was subsequently evaluated by expert peers. It was applied accompanied by interviews with owners of the identified systems. Results: 41 solar photovoltaic systems were identified and installed in 11 municipalities of Caldas. Data was collected from 28 installations with different characteristics. 50% of the solar photovoltaic systems are in the Central-South region of Caldas. 71% of the systems are mainly installed in the urban area; 64% correspond to small-scale isolated solar photovoltaic energy generation systems, with a maximum power of less than 600W. These installations have become a viable energy alternative for the region and are being used especially for lighting and the operation of household appliances in residences, hotels, restaurants, and educational institutions. Conclusions: Although regulations on solar energy installations had not been established, these systems have already been implemented in the department in a successful, but moderate, manner.

scholarly journals Review of Operation and Maintenance Methodologies for Solar Photovoltaic Microgrids

2021 ◽  
Vol 9 ◽  
Author(s):  
Ketshephaone Keisang ◽  
Tobias Bader ◽  
Ravi Samikannu
Keyword(s):  
Solar Energy ◽  
Renewable Energy Sources ◽  
Third Party ◽  
Solar Photovoltaic ◽  
Maintenance Strategies ◽  
Operational Lifetime ◽  
Technology Applications ◽  
Operations And Maintenance ◽  
Alternative Solutions

Global concerns and growth in electricity demand, especially for rural and remote settlements, has forced governments, scientists, engineers, and researchers to look for alternative solutions in the form of renewable energy sources. High global growth in solar energy technology applications has added more weight in operations and maintenance (O&M) of solar-photovoltaic (SPV) systems. SPV reliability and optimized system performance are key to ensuring success and continual adaptation of SPV technology. O&M plays a central role in ensuring sustainability and long-term availability throughout the operational lifetime of the elements of SPV systems whilst boosting confidence of ultimate consumers in solar energy. While appreciating that SPV installations intrinsically require minimal maintenance actions, the objective of this manuscript is hence to reaffirm the significance of O&M scheduling in SPV systems by reviewing the O&M approaches in SPV microgrid systems. Further discussions focus on the various maintenance strategies employed in the field with special emphasis on corrective, preventive, and predictive maintenance strategies. Because of the variation in the design and development procedures of SPV systems, there is lack of clear steps followed in the development of an O&M program for SPV systems and the evaluation of its performance. This manuscript serves to address this through a model for developing an O&M program and portrays the key elements for its success, including a management and execution approach for improved risk-return balance and savings from the O&M expenditure. Eventually, the three models of executing an O&M program (i.e., in-house O&M team, third party contract, or installation company) are analyzed.

Autonomous Active Solar Energy Systems for Heat Supply in Housing and Communal Services

2021 ◽  
pp. 51-55
Author(s):  
Pavel A. Khavanov
Keyword(s):  
Solar Energy ◽  
Electric Power ◽  
Thermal Energy ◽  
Heat Supply ◽  
Alternative Energy ◽  
Energy Systems ◽  
Heat Pumps ◽  
Cold Climate ◽  
Small Scale ◽  
Water Heating

Energy saving in small-scale heat power engineering is directed to increasing the efficiency of using fossil energy carriers, electric power, and their wider replacement with alternative sources in housing and communal complex. The practical use of active solar energy systems, both photovoltaic and with direct water heating, has found widespread use. At the same time, the specificities of these systems deployment are caused by climatic and technical conditions of their application. For countries found in climatic zones with temperate and cold climate, water heating installations design is most rational when used seasonally. Low coolant potential, heat supply frequency in active solar energy systems, linked to seasonality of their operation, daytime and weather require several technical solutions. For example, solutions with the use of other equipment in form of thermal energy accumulators, heat pumps and other equipment, which in any case must be combined with a traditional source of thermal energy using fossil fuels or electric power, performing the functions of both other and emergency source of heat energy. Capacity reserving of alternative energy sources is most efficient and least energy-consuming when conducting with heat sources using gaseous or degasified fuel. The use of electric power for heat supply purpose, with few capital investments, requires from a developer significant installed capacities of heat source with a low efficiency for primary fuel. In the article one considers thermal schemes of autonomous heat supply installations for objects using modern condensing boilers of low power and along them various heat cumulating devices, supplying full year operation of equipment at heat supply facilities to get the highest efficiency of energy use.

Predicted Performance of an Integrated Solar Thermal and Photovoltaic System With Hybrid Turbine-Fuel Cell Cogeneration System With Cooling Loads

2008 ◽  
Author(s):  
Gregory J. Kowalski ◽  
Mansour Zenouzi
Keyword(s):  
Carbon Dioxide ◽  
Renewable Energy ◽  
Fuel Cell ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Utilization ◽  
Photovoltaic System ◽  
Energy Requirements ◽  
Cogeneration System ◽  
Cooling Loads

A general approach, the HLRP technique, for determining the performance of a hybrid turbine-fuel cell cogeneration system with a renewable energy sources is presented for a domestic residence for a summer day with cooling loads. The use of the ratio of the thermal load to required power parameter (HLRP), which scales the energy systems, allows the performance to be quickly determined and preliminary carbon dioxide production rates and cost effects to be estimated. The present paper includes solar energy systems, thermal and photovoltaic, as renewable energy to illustrate the development of this technique and its integration with the hybrid fuel cell cogeneration system. The analysis focused on matching the transient characteristics of the power and thermal loads with those of the renewable energy system. The results demonstrate that for a typical summer day in the location studied there are not large variations in the energy utilization factors for the four different systems investigated. Surprisingly, the photovoltaic system produces the lowest first law performance and the largest amounts of carbon dioxide. This observation points out the complexity of these systems. The explanation illustrates that saving power production while increasing the use of the most inefficient device (the furnace) decreases the system performance. The information provided by the performance graphs is used to estimate costs for each system and to easily determine which system is the most efficient for satisfying energy requirements and reducing green house gas emissions. The results provide site planners and physical plant operators with initial information that can be used to design new facilities or effectively integrate large plant expansion that include renewable energy systems in a manner that will minimize energy requirements and reduce pollution effects.

Guidelines for Integrating Solar Energy in Sicily’s Buildings

Green ◽  
2015 ◽  
Vol 5 (1-6) ◽  
Author(s):  
Rosaria Ciriminna ◽  
Francesco Meneguzzo ◽  
Lorenzo Albanese ◽  
Mario Pagliaro
Keyword(s):  
Solar Energy ◽  
Built Environment ◽  
Energy Conversion ◽  
Solar Energy Conversion ◽  
Building Design ◽  
Solar Thermal ◽  
Solar Photovoltaic ◽  
Aesthetic Value ◽  
Energy Technologies ◽  
Energy Companies

AbstractWise utilization of today’s new solar energy technologies provides buildings with new aesthetic value which is no longer in conflict with efficiency in solar energy conversion. We outline the criteria for incorporating solar photovoltaic (PV) and solar thermal (ST) technologies in the building design in Sicily’s built environment. Better education in solar energy and in solar architecture of architects and civil engineers, as well as better communication efforts of solar energy companies, will be instrumental to afford the long-awaited local and global boom in the adoption of building-integrated PVs.

Communicating about Solar Energy and Climate Change

2017 ◽  
Author(s):  
Tarla Rai Peterson ◽  
Cristi C. Horton
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Solar Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Political Influence ◽  
Energy Resources ◽  
Climate Change Communication ◽  
Change Communication

Transitioning to renewable energy systems requires changing the ways people interact with energy as well as technological change. This shift involves social changes that include modifications in norms, policies, and governance. Multiple sociopolitical factors shape the likelihood that solar energy will emerge as a significant component in energy systems around the world. This article describes ways climate change communication may be strategically employed to encourage substantial deployment of solar installations and other renewable energy resources as part of the innovations that contribute to transition and transformation of current energy systems. Understanding how communication may contribute to integration of more solar power into energy systems begins with examining current public awareness of and engagement with solar energy, as well as other low-carbon energy resources. With this foundation, climate change communication can contribute to research, development, and deployment of solar energy installations, by facilitating strategic alignment of solar energy with existing interests and preferences of its stakeholders. These stakeholders include elites who fear that shifting the energy system away from fossil fuels threatens their political influence and financial profits, energy workers who fear it will bring further reductions in already reduced wages, and those who perceive fossil fuels as the only alternative to opportunistic mixtures of animal waste and biofuel. Climate change communicators have the unenviable task of helping all of these groups imagine and participate in transitioning energy systems toward greater reliance on renewable energy sources, such as Sun. This article briefly describes the development and implementation solar energy technologies, and suggests how strategic communication may contribute to further implementation. It concludes with examples of differential deployment trajectories of solar energy in the Navajo Nation and Germany. These cases demonstrate that neither the endowment of natural resources nor the material energy needs of a location fully explain energy decisions. Indeed, social dimensions such as culture, economics, and governance play equally important roles. This provides numerous opportunities for climate change communicators to strategically highlight the ways that solar energy responds to immediate needs and desires, while simultaneously contributing to climate change mitigation.

Design Parameters for High-Efficiency Hybrid PV/Thermal Solar Energy Systems

2011 ◽  
Author(s):  
Jerry A. Dutreuil ◽  
Hamid A. Hadim
Keyword(s):  
Solar Energy ◽  
High Efficiency ◽  
Waste Heat ◽  
Energy Systems ◽  
Energy Performance ◽  
Hot Water ◽  
Maximum Efficiency ◽  
Design Parameters ◽  
Improved Design ◽  
T System

With recently increasing focus on solar energy, there has been increased interest in hybrid PV/thermal (PV/T) solar energy systems. In the PV/T system, a thermal energy recovery system is implemented to remove waste heat from the PV cells, thereby decreasing their operating temperature, leading to enhanced overall energy performance of the PV cells. The possibility of the utilization of waste heat recovered for hot water or space heating makes the PV/T system highly attractive for building integration. The main objective of this study is to conduct a state-of-the-art review and compare existing PV/T systems in terms of the factors limiting their electrical and thermal performance. Critical design parameters for maximum efficiency of PVT systems are identified and practical recommendations for improved design of PVT systems are provided.

scholarly journals Design and Sizing of Mobile Solar Photovoltaic Power Plant to Support Rapid Charging for Electric Vehicles

Energies ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3579 ◽  
Author(s):  
Kameswara Satya Prakash Oruganti ◽  
Chockalingam Aravind Vaithilingam ◽  
Gowthamraj Rajendran ◽  
Ramasamy A
Keyword(s):  
Power Plant ◽  
Solar Energy ◽  
Electric Vehicles ◽  
Renewable Energy Sources ◽  
Solar Photovoltaic ◽  
Distribution Grid ◽  
Plug And Play ◽  
Photovoltaic Power ◽  
Fast Charging ◽  
Charging Stations

Existing DC fast-charging stations are experiencing power quality issues such as high harmonics in the line current, poor power factor in the input supply, and overloading of distribution transformers, due to the dynamic behavior of charging patterns when it is connected to the power grid. Most of the recent works involve the usage of renewable energy sources to mitigate the issues on the distribution grid. In order to design a mobile plug and play DC fast charging station, solar energy is the best and viable solution to carry out. In this paper, plug and play solar photovoltaic power plant to charge electric vehicles (EVs) is proposed and modelled using MATLAB/Simulink software. The proposed system can act as a mobile power plant. The controller allows the system to charge the battery, whenever there is abundant solar energy. Incoming EVs will be charged directly from the system battery where the charger acts as a rapid charging system. The proposed system can meet the concept of Solar Photovoltaic Rapid Charging Stations (SPRCS), which shows that 80% of charge can be fed to an EV in 10.25 s.

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