Solar Powered Lighting System Research Articles

PENGEMBANGAN DUSUN TULAUN MINAHASA SEBAGAI DESA WISATA

The background issue of the Student Community Service Creativity Program (PKM-PM) activity in the village of Tulaun is the underdevelopment of this village as a tourist destination despite its abundant tourism potential. The objective of this community service activities is to provide a solution to the challenges faced by partners in developing the tourist village through the construction of supporting facilities, namely independent energy gazebos. The following are the approach strategies implemented in various stages, including: (1) Survey stage (2) Design planning stage (3) Gazebo material procurement stage (4) Gazebo construction stage (5) Independent energy gazebo facility installation stage. The result of the PKM activity is the introduction and installation of a solar-powered lighting system developed using a 50 WP solar panel capacity. A battery with a total capacity of 10 AH is used to store the generated electrical energy and as a source of energy for supplying power to the independent energy gazebo lighting. The implementation result of the PKM activity includes the enhancement of the Tulaun tourist village facilities in Minahasa and the promotion of renewable energy usage in the village

Sosialisasi dan Pemasangan Sistem Penerangan Berbasis Tenaga Surya Di Panti Asuhan Mekar Sari

Solar energy is one of the sustainable and environmentally friendly energy sources. However, this renewable energy is still not widely utilized by the people of Indonesia even though Indonesia, as a tropical country, has vast solar energy potential. Hence, It is essential to introduce and socialize solar energy potential to the general public. The partner of this community outreach program is Mekar Lestari Orphanage in South Tangerang. The orphanage care for children aged 3-16 years from various backgrounds. As a younger generation, it is hopeful that they can develop a mindset of solar energy as one of the renewable energy sources that can replace fossil fuels. In addition, the Mekar Lestari Orphanage in its social role requires a facility with adequate lighting. However, there was a lack of lighting in the front yard of the orphanage, making access to the facility difficult, especially at night. Therefore, a solar energy-based lighting system has been built and installed on the front gate of the orphanage. After installing the lighting system, socialization about the basic theory of solar energy and how the solar-powered lighting system works was conducted. The evaluation of the event, attended by representatives of staff and children living in the orphanage, showed that all participants gained new knowledge and a deeper understanding of solar energy. In addition, they learned new skills to operate and maintain solar lighting systems. From the positive feedback during the socialization, it is hopeful that this activity can provide education on the actual application of solar energy and help to improve lighting conditions in the orphanage.

Solar Powered Lighting System with New Technologies and Devices

Solar Powered Lighting System with New Technologies and Devices

Smart Solar-Powered Lighting System for Smart Cities

Smart Solar-Powered Lighting System for Smart Cities

Performance Evaluation of a PID-Controlled Synchronous Buck Converter Based Battery Charging Controller for Solar-Powered Lighting System in a Fishing Trawler

A Proportional-Integral-Derivative (PID)-controlled synchronous buck converter (SBC)-based battery charging system was designed to charge a lead-acid cell battery using commercially available Photovoltaic (PV) panel. The proposed system was installed aboard a fishing trawler to power its electrical system replacing the conventional system, which uses a diesel generator and a few kerosene lamps for lighting purposes. A PID algorithm instead of traditional Maximum power point tracker (MPPT) is used in the proposed system since the charging process of the battery requires a maximum current instead of maximum power. The proposed control algorithm is compared with the popular MPPT technique Perturb and Observation (P&O) to validate its dynamic performance at different solar irradiance levels using MATLAB/Simulink®. The simulation and the experimental results have demonstrated that the dynamic response of the proposed algorithm is significantly improved by considering higher charging current, the capability to charge the battery at low irradiance, high stability, and lower cost. Finally, a successful 15-day field trial was conducted at sea using the proposed system, and a maximum charging current output of 6.5 A was achieved by the SBC during noon time; it was sufficient to charge a 12 V, 100 Ah battery, with a state of charge (SoC) of 33%, at a voltage charging rate of +0.3 V/h.

The benefits of the transition from fossil fuel to solar energy in Libya: A street lighting system case study

The Libyan economy is dominated by the oil and the gas industry which are considered as the primary energy sources for the generating power plants. With the increased energy demands in the near future, Libya will be forced to burn more oil and gas. This, in turn will result in reducing the country revenue, threatening the economy and increasing the CO2 emission. This triggers the alarm for Libya to an urgent plan to diversify the energy sources through using sustainable energy. The sun showers Libya every day by a huge amount of sunshine, especially during the peaks in the summer days. Recently, the country has been struggling to satisfy its escalating energy demands. The residential and street lighting loads constitute more than 50% of the electricity demands in Libya. Street lighting consumes more than 3.996 TW h, which is around one fifth of the energy demands in Libya. Energy conservation and transition from fossil fuel to renewable energy could have significant profit on the energy sector in Libya. For example, Libya is still relying on the old-fashioned, inefficient and unsustainable street lighting systems. Replacing the old technology lighting systems with up-to-date solar powered lighting system can achieve energy saving and sustainability. In this paper, improving the energy situation in Libya through replacing the high pressure sodium street lighting systems with solar powered LED street lighting systems is investigated. A four km road is chosen as a case study. Four alternatives are analyzed; grid-powered high pressure sodium lamp street lighting system, grid-powered LED lamp street lighting system, stand-alone solar powered LED street lighting system and grid-connected solar powered LED street lighting system. The four options are compared in terms of the capital cost, maintenance cost, total cost, fuel cost and the CO2 emission. Replacing the high pressure sodium lamp system with LED lamp system saves 75% of energy and reduces the CO2 emission by 75%. The stand-alone solar powered LED lighting system cuts the CO2 emission, saves the fuel and is economically feasible. Furthermore, improvement is attained if the solar powered lighting system is connected to the grid where the excess energy is fed to the grid. The two solar powered options are economically feasible and sustainable.

Sustainable feasibility of solar photovoltaic powered street lighting systems

In the last few years, due to soaring fuel prices and gas emissions, renewable energy technologies have been suggested as the power source for infrastructures. The interest in solar photovoltaic (PV) assisted street lighting systems stems from the fact that they are sustainable and environmentally friendly compared to conventional energy powered systems. The present paper investigates and compares the economic feasibility of two types of systems: islanded and grid-connected system, for the street lighting systems in Hunan Province, China. Based on two options of solar panel materials, a simulation model of the system is developed for economic, technical and environmental feasibility. The comprehensively sustainability feasibility of these systems is conducted taking into account the cost, energy generation, CO2 emissions and renewable fraction. Radar plot is employed to integrate all the sustainability indicators into a general indicator, which presents system’s sustainability as a real number in the interval [0,2]. Results show that for street lighting systems of all the cities, single crystal panel has a larger number of annual electricity generation, less emissions and higher environmental performance, but is more expansive than polycrystalline. It is also found that when the feed-in tariff higher than 1.27CNY/kWh, the cost of energy (COE) of the solar powered lighting systems is less than a pure grid powered system. This will incite the use of solar PV in infrastructures. Through comparing the scores of sustainability, it is found that the Loudi system has the highest feasibility while the Yongzhou system has the lowest in the province.

Hybrid Green Technologies for Retrofitting Heritage Buildings in North African Medinas: Combining Vernacular and High-tech Solutions for an Innovative Solar Powered Lighting System for Hammam Buildings

This paper details a newly developed prototype which combines three functions: day-lighting, solar powered LED lighting and natural ventilation for the public bathhouses (known as hammams) of the heritage cities of North Africa. The prototype was developed as a result of an extensive architectural survey of 67 surviving historic baths in North African cities, during which a common problem of poor natural lighting and ventilation as well as inadequate electric lighting was identified. Combining the vernacular element of hammam day-lighting with solar powered night-lighting, the prototype was developed between August 2012 and March 2013 as part of a research project funded by Manchester University. Tests have been carried out on the roof of two hammams located in Fez, Morocco: hammams Seffarine (currently being rehabilitated) and Moulay Idriss (functioning). Results show that the prototype dramatically improves the day-lighting qualities in the bathing spaces and provides for up to 8hours of continuous night solar powered electric lighting. Positive feedback has been received from the users and the manager of hammam Moulay Idriss on demonstrating the prototype.The paper argues that the combination of a vernacular element with an affordable high-tech solution results in an innovative hybrid system that is user friendly, and sensitive to heritage buildings. Such a solution can act as a “green catalyst” by its adoption in the 4000 traditional Moroccan hammams. As these hammams continue to provide a facility for the population living inside the medinas, the adoption of this design will not only contribute to reducing energy consumption and using renewable sources of energy but will also help to sustain a traditional social and cultural practice which has supported the health and well-being of the population for many centuries.

A Battery Powered Highly Efficient Exterior Lighting System Using Low Pressure Sodium Vapour Lamp for Use in Non-electrified Areas

Innumerous attempts to solve the problems of exterior lighting in non-electrified areas of India e.g. highways, hilly areas, rural areas of delta regions have been made in the last two decades. A solar powered lighting system with 11 watt or 18 watt Compact Fluorescent Lamps (CFL) have been mounted in street light fixtures at some places but insufficient amount of light do not always serve the required need of the users specially in foggy weather. This paper reports the development of a battery powered lighting system fitted with a 35 Watt Low Pressure Sodium Vapour (SOX) lamp. It is extremely beneficial in remote non-electrified areas for its far higher light output when fitted in street light or flood light fixtures. The battery may be charged from any non-conventional energy source and is connected to the electronic circuit, which operates at high frequency. The light output of this system fitted with a solar photovoltaic array (SPVA) and the corresponding battery power have been measured and the results have been reported in this paper. This high intensity lighting system has a wide application potential in developing countries throughout the world.

The Design of a New Energy-conservation Type Solar-powered Lighting System Using a High‐pressure Sodium Lamp

This study designs and applies a new energy-conservation type solar-powered lighting system using a high-pressure sodium lamp to areas not having any utility company's electricity. The proposed system uses a zero-voltage-switching (ZVS) DC/DC converter in the batteries’ charge circuit to reduce the switching loss for a higher charging efficiency. Said system also adopts the maximum power point tracking (MPPT) technique to maximize the solar panels’ photovoltaic conversion capability. When dark, the batteries in the proposed system will discharge, with a raised voltage, through a push-pull DC/DC converter; said voltage, as the input voltage of the series-parallel resonant inverter, will be regulated to dim the lamp. To enable the efficient usage of the batteries’ stored energy capacity, this control scheme of the proposed system may adjust the night-time discharge time lengths, according to season difference, and compute the usable capacity for the load, according to the batteries’ charged voltage, so as to select a suitable pre-scheduled light-dimming curve for the lamp to achieve energy conservation for the batteries and continuity in lighting when dark.

Design and testing of a separate-type lighting system using solar energy and cold-cathode fluorescent lamps

This paper presents a solar-powered lighting system, using cold-cathode fluorescent-lamps (CCFLs), with its battery-charging circuit and lamp-ignition circuit being separated so that its solar panels can be installed at any distance deemed necessary away from the lighting site in order to receive the maximum solar energy available. This system adopts the maximum-power point tracking (MPPT) method to control the power output of the solar panels and uses the zero-voltage switching (ZVS) DC–DC converter, as the charging circuit, to increase the panels’ power generation efficiency and the charging circuit’s conversion efficiency. The electronic ballast circuit for the CCFL is constructed with a half-bridge inverter, a resonant inductor, and a Rosen-type piezoelectric transformer, which forms a piezoelectric resonant-type inverter: to simplify the circuitry and to improve the power conversion efficiency, the ballast circuit is designed to directly step up the battery voltage in igniting the lamp. We also establish the transmission-parameter model for the piezoelectric resonant-type inverter to provide the base for the electric-power circuit design. Our experimental results indicate that the proposed system possesses some advantages, such as greater energy efficiency, circuitry simplicity, and so on, and is suitable for night lighting in house yards, parks and advertising panels.

05/02200 Technical feasibility study on polycarbonate solar panels

In the last few years, due to soaring fuel prices and gas emissions, renewable energy technologies have been suggested as the power source for infrastructures. The interest in solar photovoltaic (PV) assisted street lighting systems stems from the fact that they are sustainable and environmentally friendly compared to conventional energy powered systems. The present paper investigates and compares the economic feasibility of two types of systems: islanded and grid-connected system, for the street lighting systems in Hunan Province, China. Based on two options of solar panel materials, a simulation model of the system is developed for economic, technical and environmental feasibility. The comprehensively sustainability feasibility of these systems is conducted taking into account the cost, energy generation, CO2 emissions and renewable fraction. Radar plot is employed to integrate all the sustainability indicators into a general indicator, which presents system’s sustainability as a real number in the interval [0, 2]. Results show that for street lighting systems of all the cities, single crystal panel has a larger number of annual electricity generation, less emissions and higher environmental performance, but is more expansive than polycrystalline. It is also found that when the feed-in tariff higher than 1.27 CNY/kW h, the cost of energy (COE) of the solar powered lighting systems is less than a pure grid powered system. This will incite the use of solar PV in infrastructures. Through comparing the scores of sustainability, it is found that the Loudi system has the highest feasibility while the Yongzhou system has the lowest in the province.