In the underdeveloped world, the major constraint today is capital resource needed for upliftment of rural life.

Electricity is the basic human need. The cost of carrying a transmission line to the remote village is the social responsibility of any civilised government, but it is not prudent economics, because the no of households and their consumption will not justify the investment in economic terms.

It is in this situation, the solar rural electrification is an economically viable option and practical solutions. For rural application, there are three segments to be considered, namely :-

• Solar lanterns for small household and street hawkers
• Solar home lighting
• Solar Street Lighting

These are social projects to uplift the quality of rural life, enable the children to study at night and for rural folks to do local trading at community markets in the night.

We propose a model project limited to one village as experimental project for benefit assessment for the society. We propose a small quantity of each three applications to be installed, put to use in local environment to help the decision makers to arrive at long term plan for rural upliftmen.

 

Sun light will be converted into DC Electricity when it falls on the top surface of the solar cells inside the SPV module by means of direct photovoltaic conversion process. The generated electricity can either be directly used during the sunshine hours or may be stored in storage batteries to be used later. Solar Street Lighting System essentially comprises solar PV modules, a battery, electronic luminaire with built in high frequency inverter, charge controller and automatic dusk dawn switching etc.

We offer a wide range of Solar PV Street Lighting Systems with standard and custom built versions. The Standard model generally conforms to MNES specifications.

 

 

General Specification                                                      Electrical Specification

                                                                                           Charge Controller In Street Light Luminaire

Inverter
Wave shape of inverter : Quasi sine wave/Near sine wave
Frequency of inverter : 20 to 35 KHz
Overall efficiency : 80%
(Including charge controller)

Light Output
900 lumens(Nominal) for CFL 11 Lamp.

Variants

SPV Street Lighting Systems

 

PV Modules	30Wp, 35Wp, 37Wp, or 2x35Wp, 2x37Wp depending upon hours of lighting and type of lamp required.
Lamps Options	CFL 9 / 11 Watts, or TLD 18 / 20 Watts or SOX 18 / 35 Watt
Hours of Lighting Option	3 / 5 / 7 / 9 / 12 Hours, or dusk to dawn only or dusk to dawn or 12 hours which ever is earlier or as per customer's requirements.
Switching Options	Module switching or LDR switching or Manual
Battery Options	Positive tubular plates battery of 12V 75/80 Ah at C/10 rate or pasted plates type battery of 12V 120 Ah at C/20 rate or sealed Maintenance Free Lead Acid battery of 12V65 Ah at C/20 rate or any other type of battery and rating as required by the customer.
Electronic Options	Inverter  :
	Push pull type / Blocking oscillator type
	Protection options  :
	-   Reverse polarity
	-   Battery deep discharge
	-   Battery Overcharge
	Indication options  :
	-   Reverse Polarity
	-   Battery Low
	-   Battery High
Luminaire Housing Options	Glass fiber / Aluminium / M.S / ABS
Structure Options	Galvanised/Painted and mechanical requirement as per customers specification.