Before thinking about this question, we need to make clear what factors will impact the solar street lighting working. As we all know, the components of solar street lighting are solar power panels, solar power batteries, led street lamps, solar street light controllers, poles,s, and cables. Now let’s one by one to analyze each one design and performance parameters:
Solar Power Panel:
· Type and a number of solar power panels used: monocrystalline or polycrystalline solar power panel, single or more, to be 12V or 24V?
· Total solar array wattage
· How is the solar array mounted to the pole: Top of the pole, side of the pole, Angle, etc?
Solar Power Battery:
· Type of battery
· Total capacity of the battery
· The continuous rainy/cloudy days storage
LED Street Lamps:
· Type of Light fixture (sometimes even including model or part number)
· Salient characteristics of light fixture
· Type of lamping
· Light distribution pattern
· Light level requirements
· Fixture bracket arm
· Fixture mounting height
Solar Street Light controller
· Type/description of the street light controller, PWM charging or MPPT charging
· Detailed description of nightly system operation, which is critically important to ensure the solar lighting system meets needs, 12 hours, dusk to dawn, etc.
· Street light controller performance: if need to dim the led lamp at night, how to dim
Pole
· Type of pole: anchor base, direct burial, aluminum, steel, concrete, composite, etc.
· Light pole must support the total weight and EPA of the specified solar power street lighting system in AASHTO wind loads for your particular area
Cables:
· The type and size of cables
· The real length needed for a solar lighting system
