Scenario

PRESENT SCENARIO OF SOLAR ENERGY IN INDIA

Presented ByDurgesh Choudhary Pritish PradhanBappi KumarAvinash Pataila

M Tech 1st Year (2015)Power system

Sources of energy

SOLAR ENERGY

The ultimate source of Solar energy is the SUN. Large magnitude of solar energy available makes it a highly

appealing source of electricity Sun gives 1000 times more power than what we need. Just this tiny fraction of the sun’s energy that hits the earth is

enough to meet all our power needs. Using present solar techniques some of the solar energy

reaching the earth is utilized for generating electricity etc…. India is very fortunate that it has abundant amount of SUN

throughout the year Currently, the world’s population consumes 15 terawatts of

power from a combination of these energy sources 

POWER DEMAND IN INDIA

•India is the 3rd largest electricity producing country in the world.•The utility electricity sector in India had an installed capacity of 258.701 GW as of end March 2015•Renewable Power plants constituted 28% of total installed capacity and Non-Renewable Power Plants constituted the remaining 72%•Solar only 1%

•In June, the Union Cabinet approved a plan to increase India's solar power capacity target five-fold to 100,000 megawatts by 2022•Current intalled capacity is 4,060 MW•The goal can be reached if an average of about 15,000 MW of solar power is added every year•Madhya Pradesh will house the world's largest solar power station - 750 megawatts (MW) -  in Rewa district

Initiatives by Government of INDIA

PRESENT SCENARIO

• The fossil fuels are non renewable sources so we can not depend on them forever.

• Though nuclear energy is a clean and green energy ,as said by Dr.A.P.J Abdul Kalam, there are always some problems associated with it.

• So the only option we have is solar energy because it is a nonpolluting and silent source of electricity and also low maintainence and long lasting energy.

USES OF SOLAR ENERGY

• Heaters Green houses • Cars water pumps• Lights Desalination • Satellites Chilling• Dryers Solar ponds• Calculators Thermal• Commercial use On an office building , roof areas can be covered with solar panels .• Remote buildings such as schools , communities can make use

of solar energy.• In developing countries , this solar panels are very much useful.• Even on the highways , for every five kilometres ,solar

telephones are used.

• We can use solar energy by converting it to electrical energy . So we must use a device called solar panels which can convert the light energy into electrical energy.

• Solar panel is a group of solar cells.• Solar cells works on the principle of photoelectric effect.

• PHOTOELECTRIC EFFECT

• When a light of certain frequency falls on the surface of a metal , electrons will absorb the energy . If incident light energy is greater than the work function(minimum energy required to remove the loosely bound valence electrons)of the metal ,then the photo electrons will be emitted and the excess energy is converted to the kinetic energy of electron.

How solar energy is used

Working of solar cells

• When solar panels are placed in the sunlight , photons will strike the surface and emits electrons.

• As a result electron hole pair is created in the solar cell.• When external circuit is connected to the solar cell , electrons

flow in the circuit and the current is generated.

Photovoltaic Cells

Parabolic Trough

• Sunlight focused on heat transfer fluid (HTF), which then runs steam turbine

Advantages

Traditional model of distributionNo fuel costsFlexibilityAlmost no maintenanceNegligible environmental impactPower can be either centralized in individual homes or

distributed by electrical companies.

DisadvantagesNon-Constant PowerVulnerabilityInefficient and costly equipmentReliability Depends On Location

Future Plan of solar energy in India

Thank You