Solar home systems (SHS) are stand-alone photovoltaic systems that offer a cost-effective mode of supplying amenity power for lighting and appliances to remote off-grid households. In rural areas, that are not connected to the grid, SHS can be used to meet a household's energy demand fulfilling basic electric needs. Globally SHS provide power to hundreds of thousands of households in remote locations where electrification by the grid is not feasible. SHS usually operate at a rated voltage of 12 V direct current (DC) and provide power for low power DC appliances such as lights, radios and small TVs for about three to five hours a day. Furthermore they use appliances such as cables, switches, mounts, and structural parts and power conditioners / inverters, which change 12/ 24 V power to 240VAC power for larger appliances. SHS are best used with efficient appliances so as to limit the size of the array.
Solar Home Lighting System
Reducing indoor air pollution and therefore improving health as they replace kerosene lamps,
Providing lighting for home study,
Giving the possibility of working at night and facilitating the access to information and communication (radio, TV, mobile phone charging).
Home lighting solar systems are the fixed installations designed for domestic application. The components of the solar lighting system includes solar pv module (solar cells), charge controller, solar battery and lighting system (lamps & fans).
System consists of III Solar module 12v 8 watt
Battery 12v 7 Ah
5, 7, 9 and 15 watt led luminary with dc to dc constant current circuitry more than 85% efficiency constant light output
Mobile charger with fan optional
Operation 3-4 hours
Autonomy 2 days
Low battery cut
Electronic Blocking (To protect against the reverse polarity connection of PV panel and prevent current from battery to panel at night time)
Temperature compensation for better battery charging for various climate and terrain
Battery reverses polarity protection with fuse
3/4 LED indication systems for system and battery status
Efficient Over charge and deep discharge protection
Electronic overload protection avoiding blowing of fuse except in reverse battery