This document discusses active solar energy. It explains that active solar energy uses mechanical equipment like pumps and blowers to collect, store, and convert solar energy, including storing it for later use. The most common example of active solar energy is a solar water heating system, which can save the equivalent emissions of two medium coal power plants annually. Other examples discussed include concentrating solar power plants, photovoltaic solar panels, and India's Jawaharlal Nehru National Solar Mission plan to significantly increase solar power capacity by 2022.

1. ACTIVE SOLAR ENERGY
Submitted To- Submitted By-
Dr. Richa K. Tyagi Anupam Kumar Das
Asst. professor M.Tech 1st Sem.
BBAU Energy & Environment
Lucknow BBAU Lucknow

2. Solar energy
Radiation energy produced
by sun
Clean, renewable source of
energy.
Converted into usable
energy such as electricity

3. Solar energy used in two ways:-
1.Passive solar energy:-
Direct use for
heating/lighting/drying/ventilation purposes.(in
natural manner)
Example-lighting in homes through windows or
green buildings concept.
2. Active solar energy:-
Conversion to electricity with the aid of special
instruments like uses of the mechanical
elements to provide either heating or cooling.
Example- solar water heating system, solar
thermal power plant.

4. Active solar energy
 In active solar energy the system uses
mechanical equipment such as pumps and
blower and other type of equipment to collect,
store and convert solar energy also use when
solar energy is not enough.
 In this type of energy: once the energy from the
sun is absorbed, it is stored for later use.
 Active solar techniques increase the supply of
energy.

5. Example of active solar energy system
 Most common example of
active solar energy is-solar
water heating system.
 Solar water heating saves
approx. 1000 megawatts of
energy a year, equivalent to
eliminating the emission from
two medium sizes coal
burning power plants.
 By using solar water heating
over gas water heating, a
family will save 1200 pounds
of pollution each year.

6. Solar collector
Glass on outside
Absorbent on inside
Circulating fluid

7. Others
examples of
active solar
energy –
Solar energy
power plants.
Concentrating
solar power
And
photovoltaic

8. Concentrating solar
power(CSP)
oConverted sun energy into
high temp. heat energy
oThe heat energy used to
generate electricity in a
steam generator.

9. largest CSP plant
California, United States
• Ivanpah Solar Power Facility
• Location: California, United
States
• Commission date: Feb, 2014
• Capacity: 354 megawatts
(MWh)
• Generates power for 140,000
homes
The Ivanpah installation reduces
carbon dioxide emissions by over
400,000 tons annually.

10. CSP plant in India
Neemuch, India
Welspun solar MP project
Capacity: 150 MWh

11. Photovoltaic
Tracking solar panels rotate as
the sun moves through the sky
to maximize the amount of
electricity then can produce.

12. Canal Power Project in India

13. Advantage of active solar energy:-
 Long term cost effectiveness in colder climates-
It is very effective in colder climates, where interior heating is
necessary during most of the year.
 Free sunlight can save thousand of dollars a years in utility bills in
areas with long winters.
 Low maintenance- Generally , maintenance with solar heating
system will involve keeping the solar panel clean and unobstructed
from snow, bird dropping , tree branches and other debris.
 On average solar heating system require a mere 8 to 16 hours of
routine maintenance per year.
 It is also worth nothing that many grid- tie solar heating systems
come with warranties at least 10 years.

14. Silent operation
 The silent operation of solar heating
systems is due to minimum presence of
moving parts.
 There is absolutely no noise resulting
from the some of solar heating systems.

15. Environment & health issue
Cadmium – Cadmium is used in cadmium telluride solar cells
as a semiconductor to convert solar cells energy into electricity.
 Though used in very small amounts, it is extremely toxic and
can build up in a given ecosystem if it isn't monitored.
 Electromagnetic Radiation From Solar Panels
Modern solar systems use components that radiate high
levels of radio frequency electromagnetic radiation, which
poses health risks to those with electromagnetic
hypersensitivity (EHS).
 some of the symptoms of this health risk are common and non-specific,
such as headaches and restlessness.

16. Disadvantage of active solar energy
Space requirement-
Active solar systems rely on
the sun to heat liquid. weather the liquid is water or
an antifreeze mixture.
To generate enough hot liquid to be useful, a large
space is required.

17. Cost problem

18. Indian energy scenario of renewable
energy sources

19. JNNSM- Jawaharlal Nehru National Solar
Energy Mission
 National solar mission is a major initiative of the governments to
promote ecologically sustainable growth while addressing India's
energy security challenges.
 In first phase mission aims to commission 1000 MW of grid-connected
solar power projects by 2013.
 20,000 MW of grid connected solar power by 2022.
 The mission has several purpose-
1) long term energy security.
2) ecological security.
3) to deploy 20 million solar lightening systems for rural areas by
2022.
4) to achieve 15 million square meters solar thermal collector area
by 2017 and 20 million by 2022.

20.  In the solar energy sector, some large projects
have been proposed and a 35,000 square km area
of the Thar Desert has been set aside for solar
power projects sufficient to generate 700 to 2100
GW.
 India is planning to install the world’s largest solar
power plants with 4000 MW capacity near sambhar
lake in Rajasthan.

21. T H A N K Y O U !