Photovoltaics - Different types of photovoltaic systems

Photovoltaics - Different types of photovoltaic systems

Photovoltaics - Different types of solar photovoltaic systems

Photovoltaics - Different types of solar photovoltaic systems: As fossil fuel prices continue to rise and global emission standards continue to tighten, demand for renewable energy sources such as solar, wind and energy storage solutions will continue to grow.

The term "solar" refers to the sun. The solar cells are those used to store energy that is converted by solar radiation or light energy into electricity through the photovoltaic effect, using solar cells (also known as solar photovoltaic cells or photovoltaic cells). They do not involve chemical reactions in the battery. Photovoltaic cells are made of semiconductor materials that combine certain properties of metals with those of insulators, which allow it to convert light into electricity.

When light is absorbed by a semiconductor, photons can transfer their energy to electrons, creating a stream of electrons. What is the current? It is the flow of electrons. This current flows out of the semiconductor, out of the wires. These cables are connected to the battery or mains via certain electronic circuits and inverters to control and generate AC power.

 

Photovoltaics - Different types of photovoltaic systems

Photovoltaics - Different types of photovoltaic systems

How to use the power of the solar photovoltaic system

 

Autonomously (or offline) SPV systems:

Here, solar energy is used for individual homes or industrial units or small communities. The electricity generated by the solar panels is sent via an electronic controller to the batteries, which store the energy. The direct current of the batteries is reversed to AC; the electric charge draws power from these batteries. Typically, a 1 kW solar terrace system requires 10 square feet. non-shaded area of ​​measures. However, the actual size depends on local factors of sunlight and weather conditions, the performance of the solar cells, the shape of the roof, etc.

Solar photovoltaic system directly connected to the grid (or grid connected system)

In a system directly connected to the network (or system connected to the network), the SPV panels will be connected to the public distribution line via controllers and meters.
Not
batteries are used here. Electricity is initially used to supply the immediate electricity needs of the home. When these needs are met, additional electricity is sent to the grid through the meter. The solar system is connected to the grid and when the house needs more electricity than the solar panels can produce, the required electricity balance is provided by the utility grid.

So, for example, if the electric charge in the house is pumping 20 amps and the solar energy can only produce 12 amps, then 8 amps will be drawn from the grid. Obviously, at night, all your electricity needs are supplied by the grid, because with a grid-connected system, you do not store the electricity you generate during the day.

disadvantage is that when the power goes out, so does the system. This is for safety reasons, as line staff working on power cords should be aware that there is no power supply to the grid. The inverters connected to the grid must be disconnected automatically when they do not detect the grid. This means that you can not supply power in the event of a power outage or emergency, nor can you save energy for future use. Also, you have no control over when system power is used, such as during peak periods.

Solar PV systems without battery storage - interactive or mains connected (hybrid)

These SPV systems generate solar energy and internal power loads and the local power distribution system. The SPV system components of this type are (a) SPV panels and (b) converters. A grid-connected system is similar to a conventional power system, except that part or all of the power comes from the sun. The disadvantage of these systems without battery storage is that they do not have power during a power outage.

Conclusions:

The main disadvantage of this solar photovoltaic system is that it costs more than a basic grid-connected system and is less efficient. Accessories are also added. Adding batteries also requires a charge controller to protect them. There should also be a subpage with significant loads to back up. The system does not support all loads used by a home network. Critical load required during power failure. They are isolated in a backup sub-panel.

Photovoltaics - The conversion efficiency of a photovoltaic system.
Photovoltaic- Interactive or hybrid solar systems

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Photovoltaics - Different types of photovoltaic systems,

Photovoltaics - Different types of photovoltaic systems,

Photovoltaics - Different types of photovoltaic systems, interactive or connected, autonomous photovoltaics.

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