How Does Solar Lighting Work?
Solar LED lights are extremely efficient in the same way standard solar energy is efficient, solar LED lights are completely off-grid and incorporate battery technology.
The world is pushing for more renewable energy to avoid the adverse effects of climate change. According to World Energy, just the average global solar radiation per year can produce just as much energy needed as 140 m3 of natural gas, 200 kg of coal, or a barrel of oil. This means, under the right optimisation process, solar energy can indeed replace modern energy sources we have today.
If we’re to talk about the basics, it’s obvious that solar LED street lights work by utilising solar energy – however, it doesn’t stop there. These street lights are actually dependent on photovoltaic cells, which are the ones responsible for absorbing solar energy during daytime. These cells eventually convert this solar energy into usable electrical energy that can power the lamps during night-time. This process repeats everyday, and potentially even be a way for the street light to have a sustainable source of energy for as long as the sun is up.
Solar LED street lights rely on the photovoltaic process, which allows the solar cell to convert sunlight into usable electrical energy. This is done when negatively-charged electrons push solar energy into positively-charged spaces in the cells. This process allows solar energy to transfer into the electrons – becoming direct current electricity. Similar to how electricity-based gadgets work, wires from the solar cell are then connected to the battery in order to transfer the fresh direct current electricity from sunlight.
It’s when night arrives that the solar cell will stop the conversion process as sunlight disappears. Photoreceptors will help shut the solar cell down when there’s not enough sunlight to convert. This is when the battery will start supplying power to the LED lamp via other wiring.
Solar LED street lights work in all areas, especially in areas without much access to electricity. The portable and environment-friendly nature of a solar LED street light can make them an ample replacement for ordinary street lights, and a sound option for areas with no access or limited access to an electrical grid.
Solar street light benefits
- No cabling, trenching, or metering
- No power outages
- Battery backup for cloudy or rainy weather conditions
- Distributed light and power – no single point of failure for enhanced security
- Easy to install with quick connect plugs – less than 1 hour
- No scheduled maintenance for up to 5 years
- No cost of transformers or meters
- Qualify for savings from grants and interest free loans on technology
- No ongoing electric bills
- Controlled charging to prolong battery service life
- Long-life PV modules with more than 25 years of power generation capacity and 10 year warranty
- Environmentally-friendly – 100% powered by the sun, solar panels reduce fossil fuel consumption, eliminating pollution
- Self-contained solution – Light on/off controlled by automatic daylight sensing or hour preset, no running or maintenance cost
- Improved light source – LED lights feature cool white light without flickering and higher brightness than sodium lights
- Safe 12 volt/24 volt circuit, no risk of electric shock