Solar LED road lighting systems have additional components that are not required for grid‐connected LED road lighting systems.
LED street lighting technology has progressed to include solar energy as an energy source. Solar LED road lighting systems have additional components that are not required for grid‐connected LED road lighting systems. In addition to the pole, luminaire, and cables that make up a conventional LED road lighting unit, the solar unit system collects, stores, and deploys solar energy. The light passes through the solar panel system in to the deep cell long life battery systems. Therefore minimising the excessive use of mains power that is currently being diluted from the national grid system to power existing sodium street light units.
Solar Photovoltaic (PV) Panel is the energy‐ generating component responsible for harvesting energy from the sun and converting it to a usable form of electricity.
Battery is the energy storage and supply component of the system; it converts stored chemical energy into electrical energy. The battery in a solar lighting system is typically rechargeable and designed to supply energy to the lighting system for up to 3‐5 consecutive rainy or non‐sunny days. There are called “autonomy days,” defined as the number of days the battery can support the lighting system without recharging.
Charge Controller is considered the “heart of the system.” It harvests the current to charge the battery during the daytime and discharges the battery during the night to power the LED module as efficiently as possible. It also regulates the flow of electric current to and from the battery and prevents over‐charging, over‐discharging, or over‐ voltage, all of which may reduce battery performance or lifespan, and may pose a safety risk.
Luminaries’ here is the same as in the grid‐connected LED lighting system. In a solar LED lighting system it is identified as the energy‐consuming component responsible for providing an adequate amount of light.
Mechanical Components (poles, internal cables) support the whole system by connecting the PV panel, battery, controller, and luminaries altogether. In a solar LED lighting system, this component plays an even more essential role in the overall reliability of the system. Having good quality components is not enough to ensure reliability of the system. In fact, precisely because the separate components need to be configured and integrated into a single system, solar LED lighting requires a system approach that looks at how the whole unit works optimally and not just the performance of each individual component. A solar LED lighting system is more than just the sum of its parts: it requires seamless system integration and configuration to deliver the required functionality and performance. The key to a reliable and robust solar LED lighting system is to guarantee the quality of each component and to ensure their proper configuration and integration.Get in touch
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