A majority of the world's current electricity supply is generated from fossil fuels such as coal, oil and natural gas, these traditional energy sources face a number of challenges including rising prices, security concerns over dependence on imports from a limited number of countries which have significant fossil fuel supplies, and growing environmental concerns over the climate change risks associated with power generation using fossil fuels. As a result of these and other challenges facing traditional energy sources, governments, businesses and consumers are increasingly supporting the development of alternative energy sources and new technologies for electricity generation. Renewable energy sources such as solar, biomass, geothermal, hydroelectric and wind power generation have emerged as potential alternatives which address some of these concerns.

Solar power generation has emerged as one of the most rapidly growing renewable sources of electricity. Solar power generation has several advantages over other forms of electricity generation:

Reduced Dependence on Fossil Fuels: Solar energy production does not require fossil fuels and is therefore less dependent on this limited and expensive natural resource. Although there is variability in the amount and timing of sunlight over the day, season and year, a properly sized and configured system can be designed to be highly reliable while providing long-term, fixed price electricity supply.

Environmental Advantages: Solar power production generates electricity with a limited impact on the environment as compared to other forms of electricity production.

Matching Peak Time Output with Peak Time Demand: Solar energy can effectively supplement electricity supply from an electricity transmission grid, such as when electricity demand peaks in the summer

Modularity and Scalability: As the size and generating capacity of a solar system are a function of the number of solar modules installed, applications of solar technology are readily scalable and versatile.

Flexible Locations: Solar power production facilities can be installed at the customer site which reduces required investments in production and transportation infrastructure.

Government Incentives: A growing number of countries have established incentive programs for the development of solar and other renewable energy sources. In India the central & the Gujarat state Government is providing the subsidy scheme for the installation of the solar rooftop system. The central government provides 30% subsidy of the total project cost &Gujarat state government provides Rs. 10,000/- (max. 20,000/-) per kW. The pay back period of the system installed, is approximately 5 years.

Despite the cost, an advantage of photo voltaic systems is that they can be used in remote areas. Anywhere a diesel generator is the technology of choice, many times a photo voltaic system is a much better life-cycle cost option.

The solar power market has grown significantly in the past decade. Solar power in India is a fast developing industry. Till now India has installed 69.02GW of renewable source of energy, of which 20GW is from solar power with the cumulative installation of On-Grid & OFF-Grid system, & it is looking forward to achieve the target of 100GW of solar power by the end of year 2022.

India has added 3GW of solar power in the year 2015-2016, which increased by 5GW in the year 2016-2017 & over 10GW of solar power in the year 2017-2018. India ranks second in the world in the generation of solar power.

Gujarat is one of India's most solar-developed states, with its total photo voltaic capacity reaching 1,262 MW by the end of July 2017, & by the end of 31st May 2018 Gujarat has commissioned 1671.04MW of solar power.