solar street lights

how solar streer light works

solar street lights work on the principle of photovoltaic effect. When placed under direct sunlight, solar cells on the panels absorb sunlight and convert solar energy into usable electrical current.

This direct current is stored in solar batteries through a charge controller.

This energy is used to illuminate solar street lights from dusk till dawn. The current generated by a solar panel depends on the size of the solar cells and the amount of sunlight absorbed by the panel.

A solar cell consists of layers of negatively-charged electrons and positively charged spaces. When sunlight passes through these solar cells, the electrons are activated and pushed into the positive spaces. This forms an electrical circuit and when the electrons pass through this circuit, direct current electricity is generated. A solar cell is made of a semiconductor material called crystalline silicone and a solar panel is composed of multiple solar cells.

The solar panel is connected to the battery through a charge controller. The role of charge controllers is to protect the battery by regulating the voltage and preventing the backflow of current through the solar cell at night when the charging does not happen. The solar-to-current conversion process stops at night and solar cells stop producing power at nightfall. Photoreceptors on the solar lamp sense the lack of sunlight and start supplying power that is stored in the battery to the light source. Again, at daybreak, the photoreceptors shut off the light automatically.

Types of Solar Led Street Lights

  1. Solar Led Street Light consisting of  Solar PV module, LED light , Battery, Charge Controller and GI Pole 
  2. All in one Solar Led light or  Integrated LED Street Light which is inbuilt with Solar PV modules and Battery along with Charge controllers
  3. Solar Semi integrated LED street Light in which Battery inbuilt and Solar PV panel will be separate Mounting arrangement needed.

Advantages

  1. Solar street lights are independent of the utility grid. Hence, the operation costs are minimized.
  2. Solar street lights require much less maintenance compared to conventional street lights.
  3. Since external wires are eliminated, risk of accidents are minimized.
  4.  Electricity produced from solar panels is non-polluted.
  5. Separate parts of a solar panel system can easily be transported.
  6. Energy costs can be saved.

Benefits

  1. Positive Environmental Impact
  2.  Smarter Technology
  3. Cost-Effectiveness
  4. Increased Lifespan
  5. Higher Reliability
  6.  Fast & Simple Installation
  7.  Reduce Insect Swarming