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Solar power system
With about 300 clear sunny days in a year, The amount of solar energy produced in India is merely 0.4% compared to other energy resources. The Grid-interactive solar power as of June 2007 was merely 2.12 MW. Government-funded solar energy in India only accounted for approximately 6.4 megawatt-years of power as of 2005. However, as of October 2009, India is currently ranked number one along with the United States in terms of installed Solar Power generation capacity.
Number of solar street lighting systems: 55,795
Number of home lighting systems: 342,607
Solar lanterns: 560,295
Solar photovoltaic power plants: 1566 KW
Solar water heating systems: 140 km2 of collector area
Box-type solar cookers: 575,000
Solar photovoltaic pumps: 6,818
Power system
A Solar inverter is a type of electrical inverter that is made to change the direct current (DC) electricity from a photovoltaic array into alternating current (AC) in order use with home appliances and possibly a utility grid(load).
Stand-alone inverters
Stand-alone inverters that are designed to be used without the presence of the electrical utility grid - can be run from PV panels and batteries using a charge controller. The charge controller regulates the input from the PV and the batteries, regulates the battery output, and handles charging the batteries.
Battery backup inverters
These are special inverters which are designed to draw energy from a battery, manage the battery charge via an onboard charger, and export excess energy to the utility grid. These inverters are capable of supplying AC energy to selected loads during a utility outage, and are required to have anti-islanding protection
Anti-islanding protection
Normally, grid-tied inverters will shut off if they do not detect the presence of the utility grid. If, however, there are load circuits in the electrical system that happen to resonate at the frequency of the utility grid, the inverter may be fooled into thinking that the grid is still active even after it had been shut down. This is called islanding.
An inverter designed for grid-tie operation will have anti-islanding protection built in; it will inject small pulses that are slightly out of phase with the AC electrical system in order to cancel any stray resonances that may be present when the grid shuts down.
Solar inverters use special procedures to deal with the PV array, including maximum power point tracking and anti-islanding protection.
Technical specifications
Details required for customized system
1. Wattage of devices being used
2. Hours per day the devices are used
3. Availability of grid power
4. Availability of flat roof space for solar panels
Salient features
Designed to power lights, fans, TV etc.,
Specially designed for Indian operating condition
Modular design : option of adding on solar modules.
Works on both solar & AC mains power
Provides protection against overload, short circuit , battery deep discharge & over charge.
Collaborative sustainable solutions for institutions and resorts
Automatic operation
Low-maintenance & long-life
No more electricity bills
Charge controller: quality and specifically configured for long life and data recording
System autonomy for no-sunshine days
Applications
Remote area or area where power supply is insufficient
Areas where there is frequent power-cut
Custom designed power systems in retail showrooms for lighting, fans and DC air conditioners.