For street lighting, road lighting, residential and industrial areas, etc. used mainly with mercury lamps (DRL) and halogen (CG) lamps with capacity of 400-500 Tues Exterior (outdoor) coverage of existing fixtures is a significant article of consumption of electric power.

 In addition, to ensure the work of these luminaries have to run power cables to each lamp, thus producing a large amount of excavation or construction works, and also spend a significant amount of cable.

 In recent years, powerful lighting LEDs, which are at comparable with lamps and DRL KG luminous flux consume significantly less power - 50 -100 Tues Due to such a low consumption of an opportunity to create a street lighting fixtures with a self-powered solar cells. At present, appeared on the market offer these lamps. However, their widespread use prevents the high price.

 The main reason - the high cost of spare parts.

 For an example, the cost of components for stand-alone street lighting capacity of 50 Tues:

 1. Light Panel (LED) - 8000 rubles.

 2. Solar Panel 150 Watt - 27 000 rubles.

 3. Battery 12Vh200Ach - 14 000 rubles.

 4. Controller 20A - 8,000 rubles.

 Total: 57 000 rub.

 The total cost of the proposed stand-alone devices on the market street lighting power of 50 W is 80 000 rubles. and above.

 The existing lighting Lama type DRL-500 power 500 watts. annual energy consumption by the amount of 4,380 rubles. Thus, replacement of existing lamps on offer, stand-alone pays for more than 18 years, and constrains their mass application.

 2.Tehnicheskoe proposal.

 To create an effective stand-alone street lighting is proposed to use the following new technical solutions:

 2.1. The technology allows to increase the light output of a solar cell.

 2.2. While charging the battery from the solar cell using known specific impulse charging mode, which allows you to spend a battery into a lower energy and hence to apply the solar panel is a smaller area and therefore cost.

 2.3. When a low battery use a pulsed mode with a known effect of self-healing. This allows the use of smaller capacity batteries.

 The proposed solutions allow to create highly autonomous street lamp, which would provide guaranteed coverage in the night, even when the day overcast weather and short daylight (winter).

 3. Description of the proposed device.

 3.1. The device consists of:

 Z.1.1 solar cell small area of approximately 300h150mm. (And possibly less), which is mounted directly on the upper surface of the body.

 3.1.2. Accumulator (battery) optimum capacity.

 3.1.3. Controller charge-discharge (CDR). Provides the necessary modes of charge / discharge the battery through a specific algorithm works ..

 3.1.4.Osvetitelnye devices (lighting LEDs).

 3.1.5.Sistema automatic inclusion.

 3.1.6.Korpus. (All design elements are placed in one case).

 3.2.Opisanie of the device -

 3.2.1. In the light period of the day a solar cell generates electric. energy that a device is sent to the CDR battery for charging it.

 3.2.2. With decreasing daylight luminosity below a certain threshold (evening), a solar cell is automatically disconnected from the system. At the same time to a charged battery connected through the unit CDR, lighting. The device goes into lighting.

 3.3.3. With increasing luminosity above a certain threshold (morning), the lighting system automatically switches off and goes into the accumulation of energy from the solar cell, etc.

 To operate this device an external energy source is not required.

 

 4.Ekonomicheskaya efficiency.

 Proposed technical solutions can significantly reduce the need for the area of solar panels, battery capacity, etc. Accordingly, the price of components:

 1. Light Panel (LED) - 8000 rubles.

 2. Solar Panel 10 W - 1800 rub.

 3. Battery 12Vh20Ach - 1100 rub.

 4. The controller 2A - 1100 rub.

 Total: 12 000 rub.

 The total cost of the proposed set of independent coverage will be approximately 15,000 rubles.

 A comparison of the total cost will decrease by more than 4 times, respectively, and the payback period is reduced to 4 years old, which makes use of stand-alone lighting devices economically viable, both for municipal, corporate and private customers.

 5. Benefits

 Using the proposed stand-alone street lighting device achieves the following advantages:

 - Cost-effective and reliable source of lighting in different regions and for different purposes.

 - Significantly reduce or eliminate the cost of coverage.

 - Avoid situations of intermittent electricity supply.

 - Delete the installation of cables, as well as execution of associated earthworks and

 installation work for new construction.

 - Reduce the burden on the existing e-mail. network.

 - All construction is located in a single package that allows a minimal cost to install on existing lighting columns (with the dismantling of previous devices and lighting lines).

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