Home lighting System are powered by solar energy using solar cells that convert solar energy (sunlight) directly to electricity. The electricity is stored in batteries and used for the purpose of lighting whenever required. These systems are useful in non-electrified rural areas and as reliable emergency lighting system for important domestic, commercial and industrial applications. The SPV systems have found important application in the dairy industry for lighting milk collection/ chilling centres mostly located in rural areas.
The Solar Home Lighting system is a fixed installation designed for domestic application. The system comprises of Solar PV Module (Solar Cells), charge controller, battery and lighting system (lamps & fans). The schematic of the HLS is given below. The solar module is installed in the open on roof/terrace - exposed to sunlight and the charge controller and battery are kept inside a protected place in the house. The solar module requires periodic dusting for effective performance.
Operation Time
The above systems are designed to give a daily working time of 3-4 hours with a fully charged battery. The system provides for buffer storage for 1-2 non-sunny /cloudy days.
Showing posts with label APPLICATIONS OF SOLAR POWER. Show all posts
Showing posts with label APPLICATIONS OF SOLAR POWER. Show all posts
Thursday, April 1, 2010
Applications of solar technology
Solar energy refers primarily to the use of solar radiation for practical ends. However, all renewable energies, other than geothermal and tidal, derive their energy from the sun.
Solar technologies are broadly characterized as either passive or active depending on the way they capture, convert and distribute sunlight. Active solar techniques use photovoltaic panels, pumps, and fans to convert sunlight into useful outputs. Passive solar techniques include selecting materials with favorable thermal properties, designing spaces that naturally circulate air, and referencing the position of a building to the Sun. Active solar technologies increase the supply of energy and are considered supply side technologies, while passive solar technologies reduce the need for alternate resources and are generally considered demand side technologies.
In many ways Sunlight can be converted to use, namely
Architecture and urban planning
Agriculture and horticulture
Solar lighting
Solar thermal
Water heating
Heating, cooling and ventilation
Water treatment
Cooking
Process heat
Electrical generation
Solar chemical and
Solar vehicles
Solar technologies are broadly characterized as either passive or active depending on the way they capture, convert and distribute sunlight. Active solar techniques use photovoltaic panels, pumps, and fans to convert sunlight into useful outputs. Passive solar techniques include selecting materials with favorable thermal properties, designing spaces that naturally circulate air, and referencing the position of a building to the Sun. Active solar technologies increase the supply of energy and are considered supply side technologies, while passive solar technologies reduce the need for alternate resources and are generally considered demand side technologies.
In many ways Sunlight can be converted to use, namely
Architecture and urban planning
Agriculture and horticulture
Solar lighting
Solar thermal
Water heating
Heating, cooling and ventilation
Water treatment
Cooking
Process heat
Electrical generation
Solar chemical and
Solar vehicles
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