What Is Photovoltaic Solar Panel Energy And How Does It Work? - PowerPoint PPT Presentation

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What Is Photovoltaic Solar Panel Energy And How Does It Work?

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Photovoltaic energy is referred to as PV. Using photovoltaic technology, solar energy converts sunlight directly into electricity. A solar panel is made up of many photoelectric cells, each of which has a face that receives sunlight. When sunlight hits one of these faces, it creates an electric voltage difference between the two faces, which causes electrons to move from one to the other and produce an electric current. For more information visit: – PowerPoint PPT presentation

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Title: What Is Photovoltaic Solar Panel Energy And How Does It Work?


1
What Is Photovoltaic Solar Panel Energy And How
Does It Work?
2
What Is photovoltaic solar panels?
  • yy
  • PV stands for photovoltaic energy. Solar energy
    converts sunlight directly into electricity
    through the use of photovoltaic technology.
  • When sunlight strikes one of the faces of a
    photoelectric cell (many of which make up a solar
    panel), it creates an electric voltage
    differential between the two faces, causing
    electrons to flow from one to the other,
    generating an electric current.
  • When photovoltaic technology first emerged, it
    was used to power satellites. According to APPA
    (the Spanish Association of Renewable Energy
    Producers), photovoltaic panel development
    accelerated in the 1950s and has now become a
    viable alternative to the use of fossil fuels.

3
Photovoltaic Solar Panel How Does It Work?
  • yy
  • Solar PV cells generate electricity by absorbing
    sunlight and converting it into electrical
    current. A single solar panel contains many
    photovoltaic cells, and the current generated by
    all of the cells adds up to enough electricity to
    power your home. A typical rooftop residential
    array panel will have 60 cells linked together.
    Larger panels with 72 or more photovoltaic cells
    are frequently used in commercial solar
    installations.
  • The photovoltaic effect is a complicated process,
    but these three steps are the fundamental way
    that solar cells in solar panels convert energy
    from the sun into usable electricity. A
    photovoltaic cell (PV cell) is made of materials
    that can absorb photons from the sun and generate
    an electron flow. When electrons are excited by
    photons, they produce a flow of electricity known
    as direct current.

4
Function of a photovoltaic solar panels?
  • yy
  • PV cells are essential in the generation of
    electricity. A PV cell, on the other hand, cannot
    produce enough renewable energy to power an
    entire home. While the primary function of a PV
    cell is to generate electricity, we must connect
    several solar cells to form a functional solar
    panel. To produce enough energy for a residential
    house, an entire solar panel array must be
    installed.
  • PV panels are used to generate electricity
    directly from sunlight. photovoltaic solar panels
    are made up of a number of individual cells that
    are linked together to produce electricity at the
    desired voltage. Photovoltaic panels are
    inherently direct current (DC) devices. They must
    be used in conjunction with an inverter to
    generate AC.
  • Solar cells are constructed from silicon
    semiconductors that can absorb sunlight and
    convert it to electricity. They are arranged in a
    large frame that serves as the solar panel.

5
CONCLUSION
  • The majority of the Earth's surface receives
    enough solar energy to allow for low-grade
    heating of water and buildings, though this
    varies greatly depending on latitude and season.
    Simple mirror devices at low latitudes can
    concentrate solar energy sufficiently for cooking
    and even driving steam turbines.
  • In some semiconducting materials, the energy of
    light causes electrons to shift. This
    photovoltaic effect has the potential to generate
    large amounts of electricity. However, due to the
    current low efficiency of solar PV cells, very
    large areas are required to supply electricity
    demands.
  • Direct solar energy use is the only renewable
    energy source capable of eventually replacing
    current global energy supply from non-renewable
    sources, but at the cost of at least 500,000 km2
    of land area.
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