Photovoltaic Lighting Research Articles

Solar streetlights in post-earthquake Nepal: Place, identity and gender in a displaced village

Solar streetlights in post-earthquake Nepal: Place, identity and gender in a displaced village

First Principle Investigations of Cesium Based Cubic CsSiX3 (X = Cl and F) Perovskites for Solar Conversion Applications: A DFT Study

ABSTRACTThe use of solar water‐splitting technology is anticipated to reduce the disparity between demand and consumption of energy. Herein, CASTEP software is used to investigate the perovskite CsSiX3 (X = Cl and F) materials by applying GGA‐PBE exchange–correlation functional. According to structure properties, compounds possess a cubic structure of “pm3m” by using space group 221. The direct band gaps in the CsSiX3 (X = Cl and F) compounds are 1.04 and 1.07 eV, respectively. Measures of the density of states and the partial density of states (PDOS) are being utilized to determine the degree of electron localization in several bands. The compounds' optical characteristics are examined by altering their relation between the dielectric function (DF) scales and the pertinent peak. According to our results, the mechanical properties show that CsSiCl3 is brittle (0.13, 045) and CsSiF3 is ductile (0.32, 2.52) and stable with covalent bonds. Compounds CsSiCl3 and CsSiF3 modulus and elastic constants are {B (8.259, 52.375), E (8.110, 55.082), and G (18.331, 20.790)} and {C11 (13.766, 73.566), C12 (5.506, 41.780), and C44 (10.763, 24.052)} are found, according to mechanical properties. Therefore, such materials can be used for photovoltaic light absorption in the visible spectrum. These materials offer a wide range of possible uses in sensing and solar conversion because compounds combine effectively.

Sun Charge: Transforming Solar Streetlights into EV Power Hubs

Sun Charge: Transforming Solar Streetlights into EV Power Hubs

Making Solar PV Street Light – A New Convention

Today’s society is completely based on fossil fuels directly or indirectly for every aspect of its existence. The transformation from fossil fuels to green energy is essential for coming decade to mitigate sudden climate change and most importantly to ensure long term sustainability. Though this shifting works well in theory, but the reality is that shifting from fossil fuels is not so easy as it is considered to be most available convenient source of energy. Sustainable solution with modern creative ideas embedded with traditional practices, can reduce the dependency on fossil fuels on everything from energy to infrastructure. Today Light emitting diode (LED) lamps have replaced High intensity discharge (HID) lamps that were used at urban street light. Solar Street lights work on the principle of photovoltaic cell or solar cell. This paper presents an overview of the design and implementation of the solar PV street lights as a new convention in outdoor lighting technology. Solar PV Street lights eliminate the need of grid electricity, making it cost effective and environment friendly in urban and rural areas. The system’s components include solar panel, batteries, light sources, charge controllers and a pole structure. In short, this paper is based on the idea of maintaining the maximum utilization and minimum loss of available energy and also making an approach to increase the longevity of the system’s components with some common techniques and make a shift from conventional to non-conventional source of energy and thus a new convention is proposed.

Smart Cultivation System: Innovation Concept for Designing a Modern and Automatic Shrimp Farming Technology System Powered by Renewable Energy

The research presents a comprehensive exploration of energy calculations and pond design for smart cultivation systems, with a focus on shrimp ponds. Through interviews and analysis, the energy consumption of various components such as lights, waterwheels, and pumps was determined, leading to the calculation of total power consumption and the specification of necessary equipment like inverters, batteries, and solar panels. Furthermore, the study proposes the integration of renewable energy sources, such as solar and wind power, into the pond system, enhancing sustainability and reducing environmental impact. The incorporation of IoT technology facilitates real-time energy monitoring and optimization. Additionally, innovative solutions like water filtration systems and solar-powered automatic feeders are introduced to improve water quality and feeding efficiency, respectively. The application of microcontroller-based solar street lighting enhances energy efficiency and maintenance ease. A SWOT analysis underscores the strengths, weaknesses, opportunities, and threats of the proposed smart cultivation system, emphasizing its potential for energy efficiency, environmental friendliness, and long-term cost savings despite challenges such as weather dependence and technological limitations. Overall, the research underscores the feasibility and benefits of integrating renewable energy and modern technology in shrimp pond management for sustainable and efficient aquaculture practices.

Implementation of Solar Street Lighting for Empowering Rural Communities

The integration of renewable energy solutions in humanitarian projects addresses the challenges faced by underserved communities. This paper explores the design and implementation of solar street lighting systems for humanitarian efforts, aiming to enhance safety, extend productive hours, and improve quality of life. We analyze lighting needs in various contexts, such as refugee camps and rural villages, focusing on appropriate solar technologies, optimal placement, and environmental resilience. The implementation strategy includes community engagement, local maintenance training, and partnerships for sustainability. Case studies from Sub-Saharan Africa and Southeast Asia highlight practical challenges and innovative solutions, showing significant improvements in safety, economic activities, and social well-being. Recommendations for policymakers, engineers, and humanitarian workers emphasize best practices for deploying solar street lighting, underscoring renewable energy’s potential to boost sustainable development and humanitarian impact.

Solar Energy: A Key to the Decarbonization and Development Conundrum

India has planned to achieve net-zero energy by 2070, and decarbonizing the power sector is a critical goal. Currently, India is dependent on power from coal and other fossil fuels. However, India also has ambitious development goals and is parallelly fighting other challenges like poverty, unemployment, and economic growth. Among others, solar energy is available in abundance in India and rapid solarization has been identified as the best way to achieve India’s renewable energy targets at a mass scale. However, this also goes hand in hand with India’s development goals. India is attempting to build local capacity to manufacture solar energy products and incentivizing local manufacturers to expand their production. At a tariff level, solar energy is cheaper than energy from fossil fuels, enabling access to renewable energy to the lower strata of society. Offgrid solar has been used as a solution to address local problems like power cuts at households with solar torchlights and safety at night with solar streetlights. Furthermore, India is an active player in the trade of solar Photovoltaics (PV) panels, with growing exports not only improving its trade bills but also creating economic opportunities for local manufacturers. Solar energy could be India’s holy grail to achieve decarbonization as well as economic growth. This paper is a review of how India’s decarbonization ef-forts through solar energy is also contributing to economic growth.

Understanding Purchase Intentions for Solar Street Lighting in Thailand: The Impact of Regulatory and Political Factors

Understanding Purchase Intentions for Solar Street Lighting in Thailand: The Impact of Regulatory and Political Factors

Principles, development, and utilization of silicon-based solar cell

Photovoltaic technology is a technology that uses the photoelectric conversion properties of semiconductor materials to convert solar energy into electricity. Photovoltaic technology is a kind of renewable energy technology that does not produce pollution and greenhouse gas emissions and has many application prospects. According to data, from 1985 to 2017, the cumulative total installed photovoltaic capacity globally exceeded 400 GW and is expected to grow in the next few years. Photovoltaic technology has become an essential part of renewable energy worldwide. Photovoltaic cells are the core equipment of photovoltaic technology. There are mainly monocrystalline silicon, polysilicon, amorphous silicon, organic solar cells, and other types. Among them, monocrystalline silicon photovoltaic cells have high photoelectric conversion efficiency, but high cost, mainly used in high-end applications; Polysilicon photovoltaic cells are cost-effective and used primarily in large-scale photovoltaic power station construction; Photovoltaic technology can also be used in mobile chargers, solar streetlights, solar pumps, and other aspects. In addition, photovoltaic technology also has a wide range of application prospects in urban rail transit, automobiles, robots, and other fields also appear. Although photovoltaic technology has many advantages, there are still some problems, such as panel cost, reliability, stability, and storage of photovoltaic power generation. Solving these problems requires continuous upgrading and development of technology. With the progress of technology and the support of policies, it is believed that photovoltaic technology will continue to develop and make more significant contributions to global energy transformation and sustainable development.

Solar Street Light Model

Abstract: Our solar street light model consists of many advanced features. We have been working on not just using the solar energy but also using it for other local purposes rather than selling it to centralized electricity suppliers. We have decided to use that energy to solve local issues and address them locally. We will be using 3-4 street lights to connect to a common power storage rather than having separate power storage for separate street light which will reduce the cost of the entire model considerably, rotating solar panel will be mounted on the top of the street light and also it will be having automatic on/off aspect. The main motive behind this idea is to reduce the use of non-renewable source of energy and use solar energy which is non exhaustible and sustainable source of energy. This also helps in reducing the pollution as it is harmless to environment.

Towards Efficient Energy Usage at Ain Shams University Campus

In the light of global energy transition to renewable resources and energy efficiency usage, Ain Shams University (ASU) developed an ambitious plan to transform its campus into Green Campus. From an energy perspective, energy consumption data were continuously collected and audited to calculate the university campus carbon footprint. An energy usage strategy was established to tackle various pillars such as electrifying the campuses’ transportation system, improving energy efficiency usage, generating Renewable Energy (RE) for self-consumption, etc. Extensive research has been initiated on electric vehicles, wind and solar Photovoltaic (PV) energy generation with students’ activities/competitions. Thus, electric cars and buses were manufactured at the Faculty of Engineering (FoE) for elderly people and staff movement in ASU campus. Solar PV lighting poles with batteries were installed in the main campus. A small-scale Wind Turbine (WT) is manufactured and installed at the FoE and a pilot solar PV system is installed as well. Currently, an energy efficiency project is under implementation in various buildings/faculties and a parking lot that targets energy efficiency and solar PV energy generation. An energy efficiency measure is under implementation through replacing lamps with LED lamps, installing motion sensors, setting up a control center for monitoring and operation that is supported by Artificial Intelligence decision making algorithms. Rooftop solar PV energy systems are under design with smart meters. The project is targeting energy saving and bill reduction by at least 30% and as a result a reduction of carbon footprint will be achieved following the COP27 recommendations.

Computational analysis of melting radiative heat transfer for solar Riga trough collectors of Jeffrey hybrid-nanofluid flow: A new stochastic approach

Current investigation deals with the melting heat transfer for the Jeffrey hybrid-nanofluid flow in parabolic trough solar collectors through Darcy Forchheimer porous media over a variable thick vertical elongation Riga surface under the effect of solar radiation. The impacts of viscous dissipation and Joule heating are also investigated. Equations governing the Jeffrey’s hybrid nanofluid flow are higher-order non-linear partial differential equations (PDEs). These governing PDEs are transformed into the non-linear ordinary differential equations (ODEs) by introducing appropriate similarity transformations and dimensionless parameters. Runga Kutta’s fourth-order numerical scheme is implemented with the shooting technique to solve coupled higher-order ODEs. Results for velocity profile, temperature profile, drag coefficient and Nusselt number are discussed for various influential parameters. Artificial neural networking is also performed to predict Nusselt numbers in different cases and scenarios. The Artificial Neural Network gives the desired outputs with the highest possible accuracy. It is observed that the temperature profile rises with increase in Hartmann number, porosity parameter, and Forchheimer number. However thermal profile worsens with escalates in the exponential index. Radiant energy of the Sun is a renewable energy source available in considerable amounts in our living environment. A parabolic trough solar collector is an efficient solar collector that stores the concentrated incoming radiant energy from the Sun to fulfill the requirement of high temperatures in thermal energy storage systems. It has various applications in solar-powered appliances for cooking and air conditioning, solar-powered systems for treating wastewater, photovoltaic lighting, solar-powered cars, aircraft, etc.

Study on accurate regulation of power consumption in self-supporting time of off-grid system in Haikou

In practical engineering, Off-grid PV systems have failed to meet user requirements due to the absence of precise local weather parameters and unverified battery charging times. In this study, off-grid solar street lights in a village in Haikou were taken as an example. A three-year monitoring period was conducted using a local PV station. It was observed that in this area, the lowest solar radiation is typically recorded from December to January. Over three years, there were four instances of continuous overcast and rainy weather, with the longest period lasting up to 9 days. During these 9 days, the daily average power generation per kilowatt of PV module fluctuated between 0.46 and 0.92 kW. Based on this data, a theoretical formula for the optimal daily power consumption was derived, and it was determined that 180W and 240W were the optimal power consumption levels for continuous overcast and rainy weather. The charging time for the batteries was verified to be 4 days. Finally, practical validation was conducted using the village's solar street lights, confirming that the optimal power consumption during continuous overcast and rainy days was 180W, and during continuous overcast days, it was 230W. These research findings hold significant importance. Highlights Through theory and demonstration, it is concluded that: Based on years of meteorological monitoring, it has been determined that the maximum self-sufficient duration for the off-grid power station system in the Haikou area is 9 days. Under the condition of satisfying SST, the formula of optimal daily power consumption of off-grid PV system load and optimal days of battery full charge is derived through theoretical analysis. The actual engineering demonstration shows that the optimal daily consumption power of the street light off-grid system is about 180W when the load is in continuous rainy days. Under continuous overcast conditions, the optimal daily consumption power of the load is about 240 W. The best time for a fully charged battery is four days.

Technical, economic and social feasibility of using solar street lighting on campus

<span lang="EN-US">A good and proper street lighting system on campus indirectly supports teaching and learning activities. However, these conditions still need to be developed at the Marine and Fisheries Polytechnic of Kupang due to the lack of these facilities. Therefore, a solar street lighting system was designed considering the good potential of solar energy in this region. The design of this system is carried out by measuring for a year, analyzing the energy potential, economics of the system, and the social impact of installing the system. The installation of solar street lighting on campus based on the results of an analysis of technical, economic, and social aspects gives good and feasible results. The results from the technical aspect provide that the utilization of this system provides a PR value of 85%, and can make savings of 15.99 MWh per year, and provide energy of 177.8 kWh per year. The results from the economic aspect of using this system provide an IRR value of 6%, SPBP for 8.93 years, and a net present value (NPV) of IDR 85,247,500.56. The results of the social aspects obtained from the respondents’ answers showed different and meaningful results (p<0.05) from all categories given to respondents.</span>

ENERGY BALANCE ANALYSIS; CASE STUDY OF RURAL ELECTRIFICATION AGENCY (REA) PROJECT IN UNIVERSITY OF MAIDUGURI

University of Maiduguri has been faced with power supply challenges due to insurgency that negatively affects the north eastern part of Nigeria. Being a research institution, increases in the costs of power and instability of on-grid power supply have jetlagged almost comatose research and academic activates. Government through the Rural Electrification Agency (REA) has provided the University with solar powered streetlights to curb energy consumption and to improve security. This study performed comparative energy cost analysis between solar photovoltaics streetlights executed by REA and public powered streetlights to evaluate energy costs. The objective of this study is to analyse the cost benefits of using solar photovoltaics streetlights, against public powered streetlight. The analyses showed 58% savings in energy costs as against 7.99% rise for public powered streetlights in 2019. The usage of solar photovoltaic streetlights has saved the University of Maiduguri close to 14.8 million Naira from year 2017 to 2019 using 134 solar streetlights poles with 77.22% fil factor.

Perancangan PLTS Untuk Sumber Daya Lampu Penerangan Jalan Desa Iringmulyo Metro

The increasing activity of the people at night makes the need for lighting sources also increase, especially in public places. One part that requires lighting is the Iringmulyo Metro village road. Roads are the main infrastructure that must be considered for their condition and use, if the road conditions are good for passage it will certainly reduce the level of accidents and crime, so village roads also need lighting. Public street lighting using solar energy is a cheap and economical alternative to use as a source of lighting electricity because it uses a free and unlimited source of energy from nature, namely solar energy. The Iringmulyo Metro village road lighting system uses a solar cell of 200 wp and a lamp load of 40 watts. When the weather is clear the battery can charge up to 720wh and can run a light load for up to 18 hours. If the solar panel is unable to receive light, the battery still has a power reserve of 240wh/6 hours. Lighting a solar street light using a 40 watt LED lamp produces an illumination of 4.58 lux. The power efficiency of the solar cell module panel is 14.5% determined by the tilt position of the solar cell panel and the intensity of sunlight. The higher the sunlight intensity, the higher the output efficiency of the solar cell module

The Influence of Photovoltaic Light and Heat Environment of Ceramic Studio on Making Technology and Human Health

To study the influence of the Photovoltaic light and heat environment of the ceramic studio on human health and ceramic production technology, we take the ceramic studio of a university in Wuhan as the research object. And we use data processing and fitting algorithm to build the model. This paper provides a basis for improving the photothermal environment of ceramic studios in Wuhan. The results show that the indoor illumination of a one-sided window studio in the daytime is significantly lower than that of a two-sided window studio. The studio with one side window had about 80 Lx (unit of illuminance) less daytime interior illumination than the studio with two sides. In terms of illumination, the illumination of the studio with single-side Windows is about 100 Lx in the daytime, and that of the studio with double-side Windows is about 180 Lx.

Impact of Entry Point Activities (EPAs) on Changes of Socio-economic Conditions of Watershed Community in the Devipatnam Mandal of East Godavari District, Andhra Pradesh

The Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) watershed development program was implemented in the Devipatnam mandal of the west Godavari district of Andhra Pradesh. Introducing watershed development programs to the community through Entry Point Activities (EPAs) has always been recognized as an important activity. The Entry Point Activities (EPAs) were implemented to establish togetherness with the community, strengthening and sustaining it throughout the program and beyond. The present study focused on the assessment of outcomes from Entry Point Activities and their impact on changes inthe socio-economic conditions of the watershed community. The study covered two PMKSY Projects covering four micro watersheds of Batch-V sanctioned in Devipatnam mandal of East Godavari district in Andhra Pradesh. Stratified random sampling was adopted for this study covering 5% of households out of the total households in the study area. Three types of EPAs (RO Plant, Tent houses and Solar street lights) were executed in PMKSY project areas which bring changes in the socio-economic conditions of the watershed community.

Tata Letak dan Penerangan Lampu Tenaga Surya pada Akses Jalan menuju Curug Ponggang

Ponggang Village is located in Serangpanjang District, Subang Regency, West Java. There is a natural beauty in Ponggang Village that is not yet known by many people, namely Curug Ponggang with its natural beauty and soothing atmosphere. To get to Curug Ponggang, there is only one main road access. However, the problem is that there are no lighting facilities on the road access with a road length of 700 meters and a road width of 1.2 meters so that with slippery and steep road access conditions, high vigilance is needed when crossing this road, especially at night or at night. foggy. Therefore, this study aims to examine the planning for the construction of Solar Street Lighting (PJUTS) on the Ponggang Curug access road to improve the comfort and safety of road users. There are 4 alternative concepts, where one selected alternative provides a total PJUTS budget plan for 15 years. The chosen alternative concept uses a PJU lamp post with one arm using a 50W LED Solar Light Model GW8833 lamp. Based on the research that has been done, it takes as many as 22 light points with each lamp post 33 meters apart and the pole height is 3 meters. It is hoped that the construction of these lamps can improve the quality of effective and efficient lighting in Curug Ponggang

IoT based solar energy monitoring system

Abstract The Internet of Things has a vision of the internet permeating every aspect of our daily lives, with internet-enabled items playing a prominent role. The IoT makes it possible for things to be sensed or controlled remotely, using existing network infrastructure, resulting in increased efficiency, accuracy, and economic gain in addition to decreased human involvement. There are a wide variety of possible uses for this technology, including Solar cities, Smart villages, Microgrids, and Solar street lighting. As This time period was the most successful in history for renewable energy, with the growth rate being much higher than before. The method mentioned here talks about displaying the energy consumption of solar power on the internet as a renewable energy. The surveillance of this location is performed using a raspberry pi utilising Flask framework. Daily use of renewable energy is tracked via Smart Monitoring This makes it easier for the user to understand how much energy they are using. Renewable energy use and power problems are both affected by analysis.