Solar Installation Question

describe the following conditions that affect a lead acid battery i. stratification ii. sulphation

describe how solar controller is tested due to the following failure symptoms i. battery voltage above 15V and solar still connected to the battery via controller ii. battery volage above 12V but load has been disconnected

state four tests carried out on a completed solar electric installation

explain the term ”sizing” as relation to solar systems

Define the following terms as used in solar PV systems i. solar cell ii. irradiance

list three documentation or information that be availed and referred to during services and maintenance of a solar electric system

in a solar installation a wire with a resistance of 0.4ohms connects a 36watt stereo amplifier to a 12v battery. determine the voltage drop between the amplifier and the battery

explain the maintenance procedure for cleaning a solar module which is in use

outline three factors which affect the power output from a solar cell module

state two forms of energy which are derived from the sun