How to install solar panel at roof top and stay off the grid life chapter-2

How to select the type, Quality and quantity of Solar Panel for living a Grid free life. What are the total daily Wattage requirement for average household.

By: Alok kumar

How to select the best solar panel for home to enjoy grid free life, is the most popular question asked by the guys all around the world. To understand how to choose the solar panel array one should be familiar with certain electrical terminology which are ( if you simply know this basic thongs skip this paragraph):

• Voltage
• Amperage
• wattage 

Voltage: The potential difference between two points. Is measured in Volts (V) and has the symbol                   ‘V’.

Current: The flow of electrons in a circuit. Is measured in Amps (A)and has the symbol ‘I’.

Resistance: A material’s opposition to an electrical current. Is measured in Ohms (Ω) and has the                          symbol ‘R’.

Power: The rate of doing work. Is measured in Watts and has thesymbol ‘P’.

Energy: The capacity for work, the product of power and time. Has the symbol ‘E’. The basic unit of              energy is the Joule, but electrical energy is normally expressed in Watt hours (Wh) or kilo                    Watt hours (kWh). One kWh is 1000 Wh.

The relationship between these units is: