Stand Alone SPV Systems

Stand  alone  Solar  PV  Power Plants are those which are not connected to the utility grid.These power plants are   primarily   meant   to   cater   to  the needs of rural electrification in remote areas.

Systems   ranging   from  1KWp  onwards with suitable battery banks can be designed and supplied. 

Grid Interactive SPV Systems

Grid  Interactive  PV systems are connected to the utility grid.These   state  of  the  art system operate during day time   for   5-6  hours  and power the lods directly.These systems    provide    high    quality    power   ,   which   is synchronized   with  the  grid. During periods of low load usage by the connected load ,excess power is exported to the grid.These systems  are  functionally used for trail end  support , Demand  Side  Management (DSM)  and peak load shaving.These systems can be provided with short term battery  backup to feed power to citical loads during grid outage.

Application of the System 

These systems can be used in:

• Industries
• Farmhouses
• Schools
• Irrigation Pump Feeders

Available in Various capacities ranging from 26KWp onwards

SPV Hybrid Systems

The SPV -Hybrid  systems  are designed to operate with both grid and diesel generators in conjuction with battery system.The system can be  used to supplement the load &  can   be  configured   as   either   a  battery charger or inveter.

The   system  utilities  a bi-directional inverter  to regulate voltage  supply  to  the  load  and   functions   as   on  line UPS.The inveter operates  in  parallel with either the grid supply or the diesel  generator  with  active  power  to the load.Built in intelligent software ensures optimum loading of DG set leading  to  better   specific   fuel  consumption(SFC).Alternatively,these systems can  be  configured as Solar PV-mains Hybrid systems also.

Advantages

• Provides clean and reliable power to load inspite of variations in solar irradiation.
• Reduces   the   fuel   consumption   of   DG set by operating   at    optimum    efficiency    with    load management.
• Reduces pollution levels.
• Enables  trade-offs of  capital & operating costs -providing  more  optimal  solutions.
• The system  minimizes  the  capacity  requirement  of  PV  array & storage batteries.
• Provides fully automatic uninterrupted power output & full protection from power cuts.

System Components

The Components for all types of systems described are as follows:

Photovoltaic Array

• PV array consisting of 70 Wp/75Wp modules.
• PV modules conforming to National/International standards.
• System Voltage:300 V(Typical) or site specific.

Power Conditioning Unit(PCU)

• Single phase/Three phase PWM controlled inverter for grid interactive,Hybrid and stand alone operation.
• IGBT based power circuit.
• Protected against overload,short circuit & islanding conditions.
• Harmonic Distortion<5%
• Conversion Efficiency>92%
• Incorporates maximum power point tracking(MPPT) to maximize PV array output.
• SCADA for remote monitoring
• Remote start/stop control for diesel generator for optimum load management.
• Multiple operation of all energy sources.
• Inverters parameters monitoring like:

Batteries,Structures,Cables & Other Accessories  

• Suitable design to meet system requirements.
• Employs state of art technology to ensure reliability.