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1) Concentrated solar power also called concentrating solar power, concentrated solar thermal systems generate solar power by using mirrors or lenses to concentrate a large area of sunlight, or solar thermal energy, onto a small area. Electricity is generated when the concentrated light is converted to heat, which drives a heat engine (usually a steam turbine) connected to an electrical power generator or powers a thermochemical reaction.

2) StarUnion HGS power is the use of heating reactions that release Thermal energy to generate heat, which most frequently is then used in steam turbines to produce electricity. Electricity is generated when the heated water is converted to steam, which drives the steam turbine connected to an electrical power generator which generates power to be transferred to grid or for offgrid usage.

3) Photovoltaics are best known as a method for generating electric power by using solar cells to convert energy from the sun into a flow of electrons by the photovoltaic effect. Solar cells produce direct current electricity from sunlight which can be used to generate electricity.

**Find below comparison to understand the aspects of each system.**
	Concentrated solar power	StarUnion HGS power	Photovoltaics
TECHNOLOGY	Concentrated solar power systems concentrate the sun's energy using reflective devices such as mirror panels or troughs to produce heat to be generated into electricity.	HGS Power uses Photovoltaic energy to store electricity in batteries then to be used to generate Heat Energy to run Electro-Mechanical operation.	Photovoltaic (PV) solar technology converts sunlight directly into electricity using PV cells made of semiconductor materials.
INSTALLATION	Concentrated solar power technologies are only feasible at large-scale projects typically those with more than 20MW. CSP plants do not scale down well and the transmission grid is essential for CSP development.	HGS Power being combination of PV system and CSP can be accomdated for Commercial Building and PowerPlant Projects to generate units varying from 300 Units to 3,000,000 Units per day	PV Power systems can be installed almost everywhere covering both the residential and power plant sector. PV plants also provides opportunity for development of distributed and decentralized power.
UTILISATION	CSP System provides the ability to incorporate simple, efficient, and cost-effective thermal energy storage by virtue of converting sunlight to heat as an intermediate step to generating electricity during the peak time. Thermal energy storage for use in CSP systems is achievable by different technologies. It could be one of sensible heat storage, latent heat storage using phase change materials and thermochemical storage.	HGS Power being combination of PV system and CSP with storage facility of 24 hours gives it an broad edge over Both CSP & PV Technologies.	In PV Power systems electrical storage is not feasible, so they usually can only cover the daytime demand only.
LAND REQUIREMENT	CSP power plants also could be compared from the perspective of environmental impacts and natural resource requirements. It require a significant amount of land in comparison with HGS & PV plants for their operation. In average CSP plants occupy 10 acres/MW.	HGS Power being combination of PV system and CSP requires a significant amount less amount of land in comparison with CSP plants or PV plants for their operation. In average HGS plants require 1/2 acres to generate 5000+ Units per day .	PV power plants also could be compared from the perspective of environmental impacts and natural resource requirements. It require a significant amount of land in comparison with conventional fossil fuel plants for their operation. In average PV plants require 5 acres/MW.
WORKING	CSP system only works with direct irradiation	HGS systems uses PV system to store energy invariably using the diffuse radiation.	PV systems uses both direct Irradiation and diffuse radiation.
PRICE	CSP technologies currently cannot compete on price with photovoltaics solar panels or HGS Power which have experienced huge growth in recent years due to falling prices and much smaller operating, the cost of mirrors, vacuum receiver, lenses, support structure, high-efficiency heat transfer fluid,turbine and molten salt have affected the initial and operational costs of the CSP project significantly and a result uncompetitive in most scenarios	HGS Power technologies currently compete on price with photovoltaics solar panels in recent years due to variance in technology and much smaller operating costs.	Photovoltaics technologies currently is the the most competitive alternative source of energy which have experienced huge growth in recent years due to falling prices and much smaller operating costs. The mass-manufacture of PV system and government subsidy schemes have resulted in the development of low cost high-efficiency multifunction cells.

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