Wind-Solar Hybrid Street Light

The wind-solar hybrid street light is a new type of green lighting equipment that integrates wind energy and solar energy. Its core advantage lies in energy complementarity — when there is sufficient sunlight during the day, monocrystalline/polycrystalline silicon solar panels (conversion efficiency ≥14%, service life over 25 years) efficiently convert light energy into electricity; in windy weather, 200W-600W wind turbines (which can start at a low wind speed of 3m/s, service life ≥8 years) continuously generate electricity. Both charge the colloidal/lead-acid storage batteries (temperature resistance range -40℃ to 60℃) through an intelligent controller, ensuring stable power supply on rainy days and at night, and generally supporting off-grid lighting for 3-10 days.

It is suitable for a wide range of scenarios. For urban roads and squares, it can meet both lighting and landscape functions; for off-grid areas such as rural areas, mountainous regions and islands, it can quickly solve basic lighting needs; for construction sites and temporary camps, it can be flexibly deployed. It adopts LED light sources (service life over 100,000 hours, luminous efficiency up to 80LM/W) and hot-dip galvanized lamp poles (wind resistance up to 41.4m/s), with zero carbon emissions, no need for cable laying, and low long-term operation and maintenance costs. Although the initial investment is relatively high and energy supply is affected by weather, with the upgrading of energy storage technology, it is becoming the preferred solution for low-carbon urban construction and lighting in remote areas.

Detailed Introduction

Working Principle

During the day, solar panels convert light energy into electricity, and wind turbines convert wind energy into electricity when the wind speed meets the standard (usually ≥3m/s). Both charge the storage battery through the controller. On rainy days or at night, the storage battery releases electricity for power supply. Specific scenarios include: when there is wind but no light during the day, only wind power generation is used; when there is light but no wind during the day, only solar power generation is used; in extreme weather, it relies on the electricity stored in the storage battery, which can generally support continuous lighting for 3-10 days.

System Composition

Core Components: Including 200W-600W wind turbines that can start at low wind speeds (e.g., 3m/s) with a service life of ≥8 years; monocrystalline or polycrystalline silicon solar panels with a conversion efficiency of ≥14% and a service life of more than 25 years; colloidal or lead-acid storage batteries with a capacity of over 12V/100Ah, supporting a wide temperature environment (-40℃ to 60℃); and mostly LED or high-frequency induction light sources, with LED service life over 100,000 hours and luminous efficiency up to 80LM/W.

Auxiliary Structures: Lamp poles are usually 5-14 meters high, treated with hot-dip galvanizing for rust prevention; the controller integrates charge and discharge management functions, such as the SPV-DCRC series supporting pulse width modulation and temperature compensation.

Advantages and Features

• Environmental Protection and Energy Saving: Completely relying on renewable energy, with zero carbon emissions, it can save more than 90% of electricity bills compared with traditional street lights.
• Convenient Installation and Maintenance: No need for cable laying, the independent power supply system reduces construction complexity, and the failure of a single light does not affect the overall operation.
• High Adaptability: Suitable for areas with unstable power supply, such as mountainous regions and islands, with wind resistance up to 41.4m/s and wide temperature adaptability range.
• Economy: Although the initial investment is relatively high, it has no electricity bill expenditure in the long term and low maintenance costs. The service life of the storage battery is 5-8 years, so it has good economic benefits in the long run.

Application Scenarios

• Urban Roads and Squares: Can meet both lighting and landscape functions, and the lamp poles can also integrate advertising boxes.
• Remote Areas: Suitable for off-grid areas such as rural areas, mountainous regions and islands.
• Temporary Places: Can be applied to scenarios that require flexible deployment, such as construction sites and highways.