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Country

Per capita consumption
(kwh/year)

USA

13467

China

2986

India

714


Currently Installed Generation
Capacity

2,09,276.04 MW = 2x109X

Source of Power

Share in MW

Fossil Fuels



140206

Hydro-Large

39291

Renewable Sources

24998

Nuclear

4780

TOTAL

2,09,276

% share in Generation
12%

Fossil
Fuels

2%

HydroLarge

19%

67%

Renewable
Sources
Nuclear

India's power generation capacity will need to scale up Presently it is 209 GW
by 2030 it will be over 460 GW
at 6% growth rate
Source: CEA, Annual Report


Max Demand

140090 MW

Supply

125234 MW

Deficit

14856 MW

%age deficit

10.6

Reference= />



 Most parts of India receive good solar
radiation 5-7 kWh/sq. m/day
 Within 6 hours deserts receive more
energy from the sun than humankind
consumes within a year – Gerhard Knies
 I = 6 kwh/m2/day or 250w/m2
Efficiency = 15%
=> Power Produced = 37.5 W/m2
i.e. 37.5 MW/KM2
i.e. 1 GW/25 KM2
=>Thar desert area is 2.28 Lac KM2
(0.28 Million KM2)
So now you can imagine the potential!!!


 Mission aims to achieve grid tariff parity by 2022 through
 Cost reduction
 Research and development
 Local manufacturing and supporting infrastructure


Application Segment Target for Phase

Cumulative Target

Cumulative Target

for Phase II


for Phase III

(2013-17)

(2017-22)

1,100 MW

4,000 MW

20,000 MW

200 MW

1,000 MW

2,000 MW

7 million sq.m.

15 million sq. m.

20 million sq. m.

I (2010-13)

Grid Solar Power

incl. Roof Top


Off. Grid Solar
Applications
(inc. Rural Solar Lights)

Solar Collectors

/>

 Solar capital of India with Asia’s largest solar park
 More than 600 MW solar photovoltaic installations
 Government launched special solar energy educational

 Programs to full fill increasing demand of technical experts
 Creating employment of 45,000 People in renewable energy sector
 Ambitious plan of generating 100,000 Million units of clean green energy
annually




Best way to learn is looking at


 High Electric bills
 Increasing electricity tariff rates
 Frequent electricity cut off
 No contribution in environment saving


What if we used other sources of

energy to power our house !!!

Which are…
 Free of cost (just requires initial investment)
 Provides more reliability
 Helps in contributing for saving environment

Lets see how we can work it out….


Advantages of solar energy –
 Locally available
 Free source of unlimited energy


If we want to power your house / this lecture
hall by using solar power
Then,
1) How will we proceed ?
2) What will be the system size and cost?
3) What other systems we will have to integrate ?
4) What will be the methodology of sizing of each equipment ?
5) What precautions we will have to take and how much the
overall system will cost?


1. Solar radiation assessment

2. Site survey and estimating maximum available energy
3. Understanding Photovoltaic technology

4. Requirement analysis
5. Determine load, power and energy consumption
6. System concept development

7. PV array and battery selections
8. Charge controller and inverter selection


Install and Run Pvsyst on your laptops




energy received from sun on a unit area perpendicular
to the rays of sun
Radiation is inversely proportional to square of the distance

At the mean distance of sun and earth, rate at which energy is received
from sun on unit area perpendicular to rays of sun is solar constant

Its value is 1367 W/m2 = Isc


Beam radiations (Direct )
Diffused radiations (Diffuse from sky + Reflected from ground)
Global (Beam+Diffused)


Measuring solar radiations



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