scholarly journals Factors Influencing Social Perception of Residential Solar Photovoltaic Systems in Saudi Arabia

2019 ◽  
Vol 11 (19) ◽  
pp. 5259 ◽  
Author(s):  
Khalid Alrashoud ◽  
Koji Tokimatsu
Keyword(s):  
Saudi Arabia ◽  
Solar Energy ◽  
Social Acceptance ◽  
Statistical Significance ◽  
Energy Transition ◽  
Relative Advantage ◽  
Small Scale ◽  
Photovoltaic Systems ◽  
Solar Photovoltaic ◽  
Cross Sectional

Saudi Arabia has taken major steps to shift from an oil-centered to more environmentally-focused economy. One approach made recently is to enable households to possess and generate electricity by using small-scale residential solar photovoltaic systems (RSPSs). However, the number of applications to install this technology in residences is significantly low. Social acceptance of solar energy is essential for a successful energy transition. Hence, the present study aims to examine factors that may potentially motivate or impede individuals from purchasing RSPSs based on the diffusion of innovations theory. A cross-sectional, web-based survey is conducted including 1498 participants from the five main regions of Saudi Arabia. Results revealed a good cognition level in relation to solar energy, where the majority (64–83%) of respondents are aware of the benefits. An overwhelming proportion of the respondents (97%) associate RSPSs with a significantly positive image, with no significant variation in the acceptance or rejection rates among the five areas covered by the survey (p = 0.1). The results also show high statistical significance for the differences between RSPS acceptors and rejecters in all innovation attributes (p < 0.001). However, the perception of relative advantage has a higher correlation with acceptance RSPSs. These perceived advantages were of rather long-term nonfinancial benefits, such as environmental protection against global warming and provision of unlimited power, rather than the revenue related to direct costs benefits. The study also revealed that the installation cost was the most significant barrier to adopting the RSPS, which can be a focus for RSPS dissemination policies.

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 A Questionnaire-Based Survey to Assess the Level of Knowledge and Awareness about Drug–Food Interactions among General Public in Western Saudi Arabia

Pharmacy ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 76
Author(s):  
Syed Faisal Zaidi ◽  
Rayan Mgarry ◽  
Abdullah Alsanea ◽  
Sakar Khalid Almutairi ◽  
Yaser Alsinnari ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Statistical Significance ◽  
Cross Sectional Study ◽  
Exclusion Criteria ◽  
Cross Sectional ◽  
Jeddah City ◽  
Fundamental Information ◽  
Inadequate Knowledge ◽  
Level Of Knowledge ◽  
Males And Females

Introduction: Various drug–food interactions exist that may hinder treatment and can sometimes be lethal. Our aim was to assess the level of public knowledge and awareness in Jeddah city, Western Saudi Arabia, about drug–food interactions, along with the effects of demographics on their knowledge. Methods: A survey questionnaire was administered in this cross-sectional study to participants spread across multiple locations in Jeddah, including in malls and public gatherings. Participants included both males and females. Sample size was calculated through Raosoft® software. Data analysis was executed using IBM Statistic SPSS and the level of statistical significance was set at p < 0.05. Results: A total of 410 people participated in the study and only 92.68% (380) of responses were enrolled in the study; 7.32% (30) were not enrolled due to the exclusion criteria. Surprisingly, only six out of eighteen questions regarding drug–food interactions in the administered questionnaire were correctly answered by 380 participants. Data indicated that the participants had a poor to intermediate level of both knowledge and awareness with respect to drug–food interactions. Furthermore, participants showed moderate to strong awareness of the effects of alcohol and tea generally, and their interaction with medication. Conclusion: Participants in our study showed inadequate knowledge of basic and fundamental information about drug–food interactions, which highlights the dire need to increase awareness.

scholarly journals Perception and Knowledge of Patients from Different Regions in the Kingdom of Saudi Arabia towards Oral Hygiene and Oral Hygiene Aids

Healthcare ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 592
Author(s):  
Shamoukh Alshahrani ◽  
Abrar Alshuaibi ◽  
Malak Alkhaldi ◽  
Pradeep Koppolu
Keyword(s):  
Saudi Arabia ◽  
Oral Hygiene ◽  
Educational Program ◽  
Response Rate ◽  
Statistical Significance ◽  
Kingdom Of Saudi Arabia ◽  
Cross Sectional ◽  
Dental Floss ◽  
Survey Response Rate ◽  
Structured Questionnaire

Aim: The present study aims to evaluate the perception and awareness of interdental aids in different regions of Saudi Arabia. Methods: A cross-sectional questionnaire-based study was conducted, in order to evaluate the perception and knowledge of patients towards oral hygiene products among the population of the Kingdom of Saudi Arabia. In total, 812 out of 1124 participants responded and completed the survey (response rate 72.2%). The data were collected using a self-administered structured questionnaire in English and Arabic. All statistical analyses were carried out using the SPSS 20 software. p < 0.05 was used to indicate statistical significance. Results: A total of 812 participants responded, of which 486 participants (60%) declared using a toothpaste and toothbrush for cleaning their teeth. The cohort consisted of 274 (34%) females who brushed twice daily, while 96 (33%) males brushed their teeth once a day and 18% of the participants did not even brush once a day. The results indicated that 332 (64%) female participants and 174 (60%) male participants had perception and knowledge of the use of dental floss or any other device to clean between their teeth, while 174 (48.50%) male participants and 174 (49.10%) female participants cleaned their tongue with the same brush, rather than using a tongue scrubber or any other aids. Conclusion: The total awareness of interdental aids in Saudi Arabia is unsatisfactory, as demonstrated by the participants not being conscious or informed about the maintenance of their oral health. A majority of participants did not report adopting basic techniques, such as tongue brushing. This study reveals that no interdental aids were used by 16% of the participants. Thus, it is crucial to develop an effective educational program which emphasizes oral healthcare in this population.

scholarly journals Analysis of the requrements for installing photovoltaic systems in order to achieve improved performances: Case study of the City of Nis

2017 ◽  
Vol 15 (2) ◽  
pp. 145-152
Author(s):  
Marija Stamenkovic ◽  
Snezana Antolovic ◽  
Dragan Kostic ◽  
Mihailo Mitkovic
Keyword(s):  
Solar Energy ◽  
Energy Use ◽  
Pilot Project ◽  
Climatic Conditions ◽  
Renewable Energies ◽  
Small Scale ◽  
Photovoltaic Systems ◽  
Solar Plant ◽  
Sustainable Electricity ◽  
The City

The use of renewable energies is imperative nowadays. One of the ways to use clean technologies is installation of photovoltaic systems which convert solar energy into electricity, through solar plants. The country?s potential for usage of solar energy is determined by the analysis of climatic conditions. The research is conducted on the example of a small-scale solar plant - a pilot project installed in the city of Nis, concerning the analysis of the mounted system and giving the recommendations for their design with the aim of improving efficient energy use. Limitations in the installation of solar plants can occur in the case of an unfavorable position of the building where the installation is planned, and more often, the limitations are related to the investment costs and length of the repayment period of these kinds of technologies. This paper represents a promotion of sustainable electricity supply for our country and it is in correlation with the legal directives of using renewable energies.

Barriers to adopting solar photovoltaic systems in Hong Kong

2018 ◽  
Vol 29 (5) ◽  
pp. 649-663 ◽  
Author(s):  
Kevin Lo ◽  
Daphne Ngar-Yin Mah ◽  
Guihua Wang ◽  
Michael KH Leung ◽  
Alex Y Lo ◽  
...  
Keyword(s):  
Hong Kong ◽  
Energy Transition ◽  
Energy Output ◽  
Photovoltaic Systems ◽  
Policy Recommendations ◽  
Solar Photovoltaic ◽  
The Public ◽  
Economic Barriers ◽  
Regulatory Barriers ◽  
The Government

The adoption of solar photovoltaic systems is often constrained by various sociotechnical barriers. In this paper, we identify and differentiate barriers to photovoltaic among three groups of potential adopters in Hong Kong: individuals, businesses, and the public sector. A total of 55 interviews were conducted to collect the data for the study. The results indicate that the most important constraints were technical barriers such as space limitations and low energy output, followed by economic barriers such as high upfront costs and long payback periods. Furthermore, we found that individuals were the group most exposed to market, policy, and regulatory barriers and they had to contend with the highest number of barriers. Our analysis also illustrates that there was a close interrelationship between the barriers. For example, technical barriers, such as space limitations, could be overcome partially by addressing regulatory barriers. Based on the analysis, we formulate a number of policy recommendations. The results of this study could be useful to the government in its attempt to facilitate a sustainable energy transition in Hong Kong.

scholarly journals Developments in Wireless Power Transfer Using Solar Energy

2021 ◽  
Author(s):  
Himanshu Dehra
Keyword(s):  
Solar Energy ◽  
Parallel Plate ◽  
State Of The Art ◽  
Wireless Power Transfer ◽  
Small Scale ◽  
Solar Photovoltaic ◽  
Power Transfer ◽  
Wireless Power ◽  
Electro Magnetic ◽  
Rc Circuit

This chapter presents state-of-the-art and major developments in wireless power transfer using solar energy. The brief state-of-the-art is presented for solar photovoltaic technologies which can be combined with wireless power transfer (WPT) to interact with the ambient solar energy. The main purpose of the solar photovoltaic system is to distribute the collected electrical energy in various small-scale power applications wirelessly. These recent developments give technology based on how to transmit electrical power without any wires, with a small-scale by using solar energy. The power can also be transferred wirelessly through an inductive coupling as an antenna. With this wireless electricity we can charge and make wireless electricity as an input source to electronic equipment such as cellphone, MP3 Player etc. In harvesting energy, technologies of ambient solar radiation like solar photovoltaic, kinetic, thermal or electro-magnetic (EM) energy can be used to recharge the batteries. Radio frequency (RF) harvesting technologies are also popular as they are enormously available in the atmosphere. The energy converted to useful DC energy which can be used to charge electrical devices which need low power consumption. The chapter has also presented a parallel plate photovoltaic amplifier connected to a potentiometer as a Resistance-Capacitance (RC) circuit power amplifier. The effect of inductance and resulting power transfer has been theoretically determined in the RC amplifier circuit. The electrical and thermal properties and measurements from a parallel plate photovoltaic amplifier were collected to analyze the unbalanced power transfer and inductance in a nonlinear RC circuit amplifier using equivalent transfer functions. The concept of Wireless Information and Power Transfer using Electromagnetic and Radio Waves of Solar Energy Spectrum is also briefly outlined.

scholarly journals Association between Chronic Pain and Diabetes/Prediabetes: A Population-Based Cross-Sectional Survey in Saudi Arabia

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Khaled K. Aldossari ◽  
Mamdouh M. Shubair ◽  
Jamaan Al-Zahrani ◽  
Abdulrahman A. Alduraywish ◽  
Khalid AlAhmary ◽  
...  
Keyword(s):  
Chronic Pain ◽  
Saudi Arabia ◽  
Smoking Status ◽  
Statistical Significance ◽  
Population Based ◽  
Survey Study ◽  
Cluster Sampling ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Lower Limb Pain

Background. Diabetes is a debilitating chronic health condition that is associated with certain pain syndromes. The present study sought to evaluate chronic pain and its association with diabetes mellitus at a population level. Methods. A population-based cross-sectional questionnaire survey study was conducted in Al-Kharj, Saudi Arabia, from January 2016 to June 2016. Participants from both private and governmental institutions were selected following a multistage sampling technique and using a cluster sampling method. Anthropometric measurements were taken, including body weight, height, body mass index (BMI) and waist circumference. A blood sample was also drawn from each respondent for fasting blood sugar, HbA1c, and fasting lipid profile. A P value of less than 0.05 indicated statistical significance. Results. A total of 1003 subjects were included for final analysis. Compared to prediabetic and nondiabetic individuals, diabetic subjects had a higher prevalence of lower limb pain (11.1%), back pain (8.9%), abdominal pain (6.7%), and neck pain (4.4%) (X2 = 27.792, P=0.015). In a multiple logistic regression model, after adjusting for age, gender, education level, cholesterol, and smoking status, diabetic/prediabetic patients had a significantly higher prevalence of chronic pain ((OR) = 1.931 (95% CI = 1.536–2.362), P=0.037). Increased age was also significantly associated with chronic pain ((OR) = 1.032 (95% CI = 1.010–1.054, P=0.004). Conclusion. Results of this study found a significant association between diabetes and prediabetes and chronic pain symptoms. Prospective studies are needed to explore temporality of such association.

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