Solar power is the result of converting sunlight into either electricity (photovoltaic) or heat (thermal).

Photovoltaic systems are required for operating electrical appliances.

Thermal systems are required for heating purposes.

On Gird or Grid Tie solar photo-voltaic system is ideal for establishments where power is required mostly during day. This system is designed specifically to make solar power as the primary source of power. There is no power backup in this system (i.e. no battery).

In this system, the solar panel generates DC power which goes into an inverter / power conditioning unit. The inverter senses the frequency and voltage of the connected grid and releases solar AC power to the main electrical panel. When the load is switched on, power from the solar system is consumed first. If extra power is required or there is no solar power (during non sunny periods), the power is taken from the electricity grid.

PROs

- Reduction of Expensive Grid Power Cost

- Low Capital Investment

- Nil / Minimum Operating Cost

- Generation of Passive Income for 25 Years

- Reduction of Carbon Footprint

- Improves Brand Image

CONs

- No Physical Storage of Solar Power

- Solar Power Plant shuts down during Grid Power Outage

Stand Alone Off Grid Solar Power Plant is ideal for locations with nil / disturbed Grid Power.

In this system, when sun light/ sun rays fall on the solar panel, Direct Current power is generated. This DC power flows from the solar panel, through the charge controller (electronics), and gets stored in the battery bank. When the consumer switches on the DC Load, the DC power flows from the battery bank, through the charge controller, and powers the DC load. If the consumer requires to run AC Load, an inverter is attached to the system, in place of charge controller. When the AC Load is switched on, the DC power flows from the battery bank to the inverter, which converts it to Alternating Current Power. This AC power then powers the AC Load.

PROs

- No Dependence on Grid Power

- No Dependence on Fossil Fuel for Backup Power

- Physical Storage of Self Generated Solar Power

- Reduction of Carbon Footprint

- Improves Brand Image

CONs

- Replacement of Battery Bank at Periodic Intervals

- Solar Power Plant shuts down during Over Load or Deep Discharge of Battery Bank

Hybrid solar photo-voltaic system is a combination of on-grid and off-grid solar power systems.

In this system, the solar panel generates power which is first stored in the battery bank. If the battery bank is fully charged, the extra solar power is either diverted to load or is exported to the grid. When the load is switched on, and if the battery bank is fully charged, power from the solar system is consumed first (not from the battery bank). If extra power is required or there is no solar power (during non sunny periods), the power is taken from the electricity grid.

When there is no solar power: Power is taken from the Grid to power the load and charge the battery bank.

When there is no grid: Power for the load is taken from the battery bank

PROs

- Pros of On Grid and Off Grid systems

- Solar Power Plant is operational during Grid Power Outage

- No Dependence on Grid Power

- No Dependence on Fossil Fuel for Backup Power

- Physical Storage of Self Generated Solar Power

- Reduction of Carbon Footprint

- Improves Brand Image

CONs

- Replacement of Battery Bank at Periodic Intervals