Household solar light power supply system

The term solar home system, and its acronym SHS, refers to a stand-alone system, suitable for residential applications, such as home appliances, lighting, computers and water pumps. Normally, the SHS is low power, less than 100 W . The SHS is generally designed and sized to supply DC and/or AC electrical appliances.

Solar home systems consist of a solar panel, battery, inverter, charge controller, and usually two to three lamps and an extension cord that can power a small radio or television. They offer a meaningful way to displace fossil fuels or more polluting kerosene lamps for lighting.

Solar home system (SHS) is a decentralized photovoltaic array module connected with a rechargeable battery that can produce 20–100 Wp. Generally, SHS is applicable to low power consuming devices like television, radio, light bulbs, and others. The efficiency of SHS depends on its dimension of array and the sunlight availability .

SHSs are basically composed of PV modules, electrochemical storage systems (batteries), charge controllers and inverters. Fig. 2 presents a schematic of the described system. The PV modules generate the energy which is stored in the batteries or used by the loads. When the primary resource is not available, the batteries supply the load. Fig. 2.

Solar energy systems are solar home system, solar photovoltaic (SPV) systems, solar water heating (SWH) systems, solar dryers, and solar cookers. These systems are installed and managed by a household or a small community. A solar home system is a PV system with a maximum capacity of 40 W.

RLOOK AT SOLAR HOME SYSTEMSNormally, the SHS has a low pow r ouput of up to 250 Wp . Small solar systems with an output between 1 Wp and 11 Wp are called Pico Solar Systems, ofering a promising solution to access reliable energy for rural popu