how to calculate solar street light system | Queneng Guide
How to Calculate Solar Street Light System Requirements - Queneng
1. Determining the Load
This is the first and most crucial step. You need to determine the total wattage required by your street lights. This involves:
* Number of lights: Count the number of streetlights needed for the area.
* Wattage per light: Check the specification plate of your chosen LED street light to determine its wattage consumption.
* Total wattage: Multiply the number of lights by the wattage per light. Example: 10 lights x 50W/light = 500W.
2. Calculating Energy Consumption
Next, determine the daily energy consumption:
* Operating hours: Determine the number of hours the lights will operate daily. This often depends on the location and local regulations (e.g., sunset to sunrise).
* Daily energy consumption (Wh): Multiply the total wattage by the operating hours. Example: 500W x 8 hours = 4000 Wh (4 kWh).
3. Sizing the Battery Bank
The battery bank must store enough energy to power the lights during periods of low or no sunlight. Consider:
* Battery capacity (Ah): This is crucial and depends on several factors including the daily energy consumption and the desired autonomy (number of days the system can operate without sunlight). Choose a battery system with sufficient capacity. Remember to account for battery efficiency (typically 80-90%).
* Battery voltage: Select the appropriate voltage (e.g., 12V, 24V, 48V) based on your chosen lights and charge controller.
4. Selecting Solar Panels
The solar panel array needs to generate enough energy to meet daily consumption and recharge the batteries.
* Panel wattage: Consider panel size, efficiency, and available sunlight. Consult solar panel datasheets for power output under specific conditions (STC).
* Number of panels: Divide the daily energy consumption by the individual panel wattage (considering sunlight hours and system losses) to determine the required number of panels.
5. Choosing a Charge Controller
The charge controller regulates the flow of electricity from the solar panels to the battery bank, preventing overcharging and damage.
* Controller amperage: Select a controller with an amperage rating that exceeds the maximum current output of the solar panels.
* Controller voltage: This should match the battery bank voltage.
6. Considering System Losses
Always factor in system losses (wiring, battery efficiency, temperature effects). A 10-20% loss is a reasonable estimate.
7. Professional Assistance
While this guide provides a basic understanding, consulting with a qualified solar lighting professional is always recommended for complex projects or to ensure optimal system design and compliance with local regulations. Queneng offers comprehensive solar street lighting solutions and expert guidance. Contact us today for your project.
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FAQ
Battery Performance and Testing
What is the IEC standard cycle life test?
After the battery is discharged to 1.0V/support at 0.2C
1. Charge at 0.1C for 16 hours, then discharge at 0.2C for 2 hours and 30 minutes (one cycle)
2. Charge at 0.25C for 3 hours and 10 minutes, discharge at 0.25C for 2 hours and 20 minutes (2-48 cycles)
3. Charge at 0.25C for 3 hours and 10 minutes, then discharge to 1.0V at 0.25C (49th cycle)
4. Charge at 0.1C for 16 hours, leave for 1 hour, discharge at 0.2C to 1.0V (50th cycle). For nickel-metal hydride batteries, after repeating 1-4 for a total of 400 cycles, the 0.2C discharge time should be greater than 3 hours; for nickel-cadmium batteries, repeating 1-4 for a total of 500 cycles, the 0.2C discharge time should be greater than 3 hours.
What is self-discharge of secondary batteries?
APMS system
Does the APMS system support extremely cold environments?
Yes, APMS has ultra-low temperature control capability, allowing it to operate normally at temperatures as low as -50°C, ideal for high-latitude regions and extreme climates.
Battery and Analysis
What are the advantages of lithium polymer batteries? What are the advantages?
2) Can be made into a thin battery: with a capacity of 3.6V and 400mAh, its thickness can be as thin as 0.5mm;
3) Batteries can be designed in various shapes;
4) The battery can be bent and deformed: the polymer battery can be bent up to about 900 degrees;
5) Can be made into a single high-voltage battery: a battery with liquid electrolyte can only produce a high-voltage polymer battery by connecting several batteries in series;
6) Since it is liquid-free, it can be combined into multiple layers within a single chip to achieve high voltage;
7) The capacity will be twice that of a lithium-ion battery of the same size.
Solar Street Light Luqing
What are the main benefits of using Luqing solar street lights in urban areas?
In urban areas, Luqing solar street lights reduce dependency on the grid, cut down on electricity costs, and minimize environmental impact. They also offer easy installation, which reduces the need for extensive wiring and infrastructure changes.
Solar Street Light Luxian
What makes Luxian solar street lights more cost-effective than traditional street lights?
Luxian solar street lights are cost-effective because they require no external electrical connections, reducing installation costs. Their operation is entirely solar-powered, which eliminates ongoing electricity bills. The long lifespan of the LED bulbs and solar panels, combined with minimal maintenance needs, further reduces the total cost of ownership.
Queneng's Luzhou Solar Street Light provides sustainable, energy-efficient outdoor LED lighting. Powered by solar energy, it's a cost-effective and eco-friendly solution for illuminating streets and pathways. A reliable and durable LED solar street light.
Introducing the Luqing Solar Street Light by Queneng, Efficient LED lighting powered by solar energy is perfect for illuminating outdoor areas. Harness the power of solar energy for sustainable, reliable street lighting. Ideal for eco-friendly, cost-effective outdoor illumination solutions.
Queneng's Lufa high-efficiency solar LED street lights illuminate urban and commercial spaces brilliantly. These commercial solar LED street lights offer superior energy savings and reliable performance, making them an ideal sustainable lighting solution.
Queneng Lufeng Wind Energy LED Outdoor Solar Street Lights offer high-performance, eco-friendly illumination. These energy-efficient LED street lights harness solar power and wind energy for sustainable, cost-effective outdoor lighting solutions.
Queneng's Lufei Solar Street Light offers durable, energy-efficient outdoor lighting solutions. This solar-powered street light provides reliable illumination, reducing energy costs and environmental impact. Ideal for outdoor spaces, Lufei ensures safety and security.
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