Solar street lights and other street light solutions using advanced solar technology

Reasonable Capacity Setting For Solar Street Lights

Peak power of solar street lights is the maximum power output of solar cells under standard conditions, with the unit WP. Solar cell output power is decided by the solar radiation, sunlight and general distribution of solar cell operating temperature. A solar cell output power is different at different times and different places. In terms of area, per square meter of solar cell output power is about 120W, with the conversion efficiency, the output power also increases accordingly. Solar cell module output power should be set differently, according to the power source of solar lights, using time and local climate.

If there is a cell being always blocked by leaves, the cell being blocked will produce strong heat which will do harm to the solar power panel and even cause the entire solar cell module damage. This is called heat island effect. To prevent the heat island effect, solar cells should be inclined, so that the surface will not be blocked. For solar lighting systems, pros and cons of charging and discharging control circuit of the system will directly affect the performance of the product.

As the input of energy of solar street light photovoltaic system are unstable, photovoltaic power generation system in the control of the battery charger is more complex than ordinary complex controller. A good photovoltaic cell controller should have the battery charge and discharge control, temperature control, maximum power tracking and over-charge protection, over discharge protection, short circuit protection, reverse polarity protection and other protection features and automatic switching and time adjustment function. These will ensure reliable operation of the system with maximum output power efficiently, under different irradiation and different temperatures.

As the battery charging system of solar street lights is charged directly from the solar cells, so that the energy is very unstable. Reasonable and reliable batteries will ensure that the normal operation of photovoltaic power generation system. Solar street light solar photovoltaic lighting systems, usually chooses maintenance-free lead-acid batteries. Maintenance-free lead-acid battery is a new type of battery. With the whole sealing, high discharge rate, stability; no need of adding water; simple installation, small footprint, horizontal and vertical installation, life expectancy of this new battery is generally 5-7 years.

Common principles for choosing solar street lights: It should have the ability store the electricity produced during the daytime for lighting at and rainy days and it should have a reasonable capacity because Small battery capacity cannot meet the needs of night lighting and batteries with excessive capacity are not so durable because the under power status will shorten the battery life.

Solar street lighting according to the need, in the 12-volt DC energy saving lamps, low pressure sodium, high pressure sodium lamp, electrode less induction lamps and other light sources to choose. No matter what kind of light source used, the brightness and the light source directly to the power of Guangxi, but also directly affect the system configuration and investment costs. Lighting conditions at the same time, the light source power greater extent the higher the larger the system configuration, the higher the cost; power of the smaller, lower brightness, system configuration reduces the cost reduction.

Generally, solar street lights pole and solar street lamp should be selected carefully. If you install solar modules directly on the poles, this will require installation of solar modules frame according the size of solar modules. The choice of Lamps and Poles is wide with common requirement of usage and decoration.

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