Solar Captive Power Plant by Phadnis Engineering Services

We M/s Phadnis Engineering Services Provide Solar PV based Captive Power Generation Plant ranging from 1 KW to 100 KW. We also under take EPC Contract for Mega Watt Power Projects.

POWER GENERATION SCHEMESOLAR PV SYSTEM TYPES:Basically Solar PV Systems can be classified into two types. The first and the oldest is “Stand Alone” and the second which is rather new is “Grid Interactive”.
 SOLAR SYSTEM WITH BATTERY BACKUP
 Common examples of Stand Alone Systems are Solar lantern, Street Lighting System, Home Lighting System and Small Solar Power Plant with Back-up facility through Battery etc.
 SOLAR POWER PLANT WITHOUT BATTERY BACKUP
 Grid Interactive Solar Power Plant without Battery Backup This type of system only operates when the grid power is available. Since grid power outages are rare, this system will normally provide the greatest amount of bill savings to the customer against investment. However, in the event of an outage, the system is designed to shut down until utility power is restored. The inverter switches to “sleep mode” and awaits restoration of grid power. Once grid power restores the inverter synchronizes itself to grid and starts feeding power into the grid.GRID INTERACTIVE SOLAR POWER PLANT WITH BATTERY BACKUPThis type of system operates in grid connected mode when the power grid is available. However, in the eventof an outage, the system is designed to operate in standalone mode and starts powering dedicated loads, untilutility power is restored. The inverter switches to “standalone mode” and awaits restoration of grid power.Once grid power restores the inverter synchronizes itself to grid and starts feeding power into the grid.
 TYPICAL SYSTEM COMPONENTS
 PV ArrayA PV Array is made up of PV panel which in turn has several PV modules. These PV modules have environmentally-sealed collections of PV Cells which converts sunlight to electricity. The technical details of the solar modules proposed are attached in the form of catalogues.
 Balance of System Equipment (BOS)
 BOS includes module mounting structures and electrical harness systems used to integrate the solar modules into the structural and electrical systems. The electrical wiring systems include Junction Boxes for paralleling, fuses/switches, surge suppressors for the dc side.The major components of the BOS are the Inverter and the Controllers. These form the brain of the system which does multi operation. Some of the major operations are intelligent charging of the battery bank, managing the charge level, conversion of Direct Current to Alternating Current and Grid Synchronization.The other important BOS is the Battery Bank. For off grid usage this component provides the power storage option. The performance of an off grid system depends on how efficiently the Battery stores power and supports the load when called for. Different type of Secondary storage batteries are used all over the world but the commonly used is the Lead Acid type. 

Module mounting system:
 The module mounting structure is designed for holding suitable number of modules in series. The frames and leg assembles of the array structures is made of Mild Steel hot dip galvanized of suitable sections of Angle, Channel, Tubes or any other sections conforming to IS:2062 for steel structure to met the design criteria. All nuts & bolts considered forfastening modules with this structure are of very good quality of Stainless Steel. The array structure is designed in such a way that it will occupy minimum space without sacrificing the output from SPV panels at the same time.