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Solar Technology

Solar Photovoltaic System
Solar Lantern
Solar Water Pump
Solar Street Light
Solar Power Plants

Solar photovoltaic System

Solar Photovoltaic System (SPV) Ayatems sunlight into electricity throughsolar cells.The genrated electricity can either be used directly during the day of week stored in a storage batteries.Through charged controller for use during night hours.The solar photovolatic street light system with electronic controls and batteries protection is fully automatic. SPV systems are now a days being used for various applications viz.

  1. Indor Lighting, Street Lighting.
  2. Water Pumping.
  3. Railway signalling and lighting systems.
  4. Power plants for community lighting.

The SPV power can be used as independent energy source for far flung areas where conventional electricity is yet to reach. These systems have no gestation period in commissioning and installation. These are also pollution and trouble free. These syste,ms are being provided by our agency at subsidised rates for areas which are unelectrified and are likely to remain unelectified. The subsides vary from year to year as well as state to state. The main SPV activites which are being promoted under socially oreintal programmers with financial assistance form state Government/MNES, Govt. of India are as follows.


Solar Lantern:

A solar Photovaltic Lantern is a lighting system consisting of a PV module of 10wp, CFL, battery and electronics, all placed in a sutiable housing, and is similar to the conventional 'laltain'. The battery will be charged by electrictiy generated through the solar Photovaltic module. The lantern is basically a portable lighting device suitable for either indoor or outdoor Lighting covering full range of 360 degrees. The daily mean opertaing of the lantern will be three hours per day for a CFL 7 watt lantern or four hour per day for a CFL 5 watt lantern, with an average daily solar isolation of 5 KWh/m^2 on a horizontal surface.

Special Features:

Presently, Government of India is providing a subside of Rs.1500 per unit and state Govt. is also considering additonal subside. The total cost of such a unit is usally around Rs 4000 and the beneficiaries may have to pay between Rs.2000 to Rs.2500.


Solar Photovoltaic Water Pumping Systems

Solar photovoltaic water pump is ideally sited for rural,remote &inaccessible region,where conventional grid power is not cost effective.The SPV water pumping system is desined dor both minor agriculture & community drinking water uses. The modules of capacity 900 Wp are mounted on a metal frame.The output power of the moudles is supplied to DC monoblock motor pump set via control switch & inner connected wiring.The system is operated during sunshine hours of the day.The system has provision for seasonal tracking and manual tracking three times a day for optimum utilisation of soar energy.A pump of above capacity cost about Rs.2,55,500 and after Govt. of india and state subsidy,a beneficiary can own such a unit under schemes.

  1. Out right puchase
  2. lease finance Agreement

In the first case,the beneficiary by paying about Rs.1,42,000-Rs.1,65,000 depending upon the the make becomes the owner immediately.

Features :

  1. System operational during sunshine hours.
  2. Simple enough for anyone to operate.
  3. No fuel,no noise no pollution.
  4. Easy installation and low maintenance.


Street Light System

These system can be a great source of lighting for street in rural areas especially where eletricity is not availble.Subsidy to the extent of 50% of the ex-workcost of the unit availble from MNES,GOI on the basis of cluster installastion of ten unit at a site.Similar facility is also extended by MNES,GOI for indoor lighting in un-electricity areas.


Solar Photovoltaic Power Plants

The SPV based power plants are centralised systems where PV moudles of 1.5 Kwp-5 Kwp capacity are intalled at one central location.A control room built at the site houses the battery bank of capacity 350 AH to 1000 AH at 48V D.c.The d.c electricity generated during the day by the PV array is stored in the battery bank.the periphery of the whole village or area is fitted with street light poles atop which 11w CFL high efficency luminaires are installed at suitable angle to illuminate the street.The power to these street lights is fed through a d.c. distribution network using insulated copper cables. These street lights are switched on aand off automatically at dusk and daswn respectively.These systems are installed and maintained for 5 years by PEDA.The MNES,Govt of india provides a subsidy of Rs.3.0 to 10.0 lacs on such systems.The balance cost has to be borne by the beneficiary.




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