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Q. What are the different components of a solar photovoltaic (PV) System?
A.

Modules: The function of modules is to turn sunlight to DC electricity.

Inverters: The basic function of an inverter is to convert the DC electricity produced from solar modules to AC electricity

Charge controller: A charge controller limits the rate at which electric current is added to or drawn from electric batteries. It prevents overcharging and may prevent against overvoltage.

Circuit breaker: A circuit breaker in a solar photovoltaic system protects an electrical circuit from damage caused by overload or short circuit.

Battery system: If the current is not fed into the grid, a well-designed battery bank is required for storing the generated power.

Q. How does the system work?
A.

The solar panels will convert sunlight to direct current electricity. Installing the solar photovoltaic (PV) system will require the installation of an inverter to turn the DC electricity into alternating current for everyday use.

Q. How many photovoltaic (PV) panels and roof area is required?
A.

A typical 1kW solar PV system (4-5 panels) requires 100sq.ft roof area depending on panel efficiency.

Q. Maintenance?
A.

PV solar systems require minimal maintenance due to use of no moving parts.

Q. What is the average lifetime of the solar components?
A.

Solar PV panel performance is guaranteed for 20-25 years. Elcom’s solar panels are protected against defects for 10-12 years and have an expected lifetime of 40+ years.
Solar PV Inverters are known to have a life of more than 10 years and come with a 5 year warranty. We also provide our customers with an option of using an extended warranty for up to 20 years.

Q. What is the annual output of a PV system?
A.

A typical 1 kW system can generate 1250-1500 units (kWh) per year.

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