This document discusses solar power satellites, which have been proposed to collect solar energy in space and beam it to Earth. A solar power satellite would consist of solar panels to collect energy, a reflecting thin mirror, and a rectenna on Earth to receive the transmitted power via microwave beams. Key advantages are an unlimited energy source, ability to deliver power anywhere in the world, and high efficiency since solar cells can collect energy without atmospheric interference in space. Technical challenges remain in constructing such a system, but solar power satellites could become an important future source of renewable electricity.

1. Solar power satellite
By
Bhagavath p
2451-14-734-079
Venkat sai.p
2451-14-734-040

3. SOLAR POWER SATELLITE
High intensity energy of sun can be captured
Transfer of stored SOLAR ENERGY from space
to the earth surface
Wire less micro wave transmission

4. HISTORY
Nikola tesla in late 1890 poineer of induction
techniques introduced world wireless system.
In 1940s ability to convert energy to microwave
was developed.
In 1964 willam c.brown demonstrated a rectenna
In 1999,NASA’S Space Solar Power Exploratory
Research and Technology was initiated.
On nov 2,2012 china proposed space
collaboration with india .

5. GROUND BASE : SOLAR ENERGY IS STORED AND UTILIZED ON THE GROUND
SPACE BASED: SOLAR ENERGY IS STORED ON THE SPACE AND UTILIZED ON THE
GROUND
TYPES OF WPS
GROUND
BASED POWER
TRANSMISSION
SPACE BASED
SOLAR
TRANSMISSION

6. WHY??????
GROUND BASED
• Costly storage devices
required
• Less intensity of light
• Low out put
• Waste heat is radiated it
cant be handled
SOLAR BASED
• No need of costly storage
devices
• High intensity of light
• 99% out put is obtained
• Waste heat is handled into
space

7. CONSTRUCTION
• It mainly consists of three parts
 For collecting solar power in space
solar cell
heat engine
 for transmitting power to earth
microwave
laser
 Receiving power on earth
microwave
antenna(rectenna)

8. SOLAR POWER SATELLITE
Have proposed to collect solar energy in space and
beam it down to the earth

9. Working parts
1)Photovoltaic cell
2)Reflecting thin mirror
3)rectena

10. PHOTO VOLTAIC CELL
IN SOLAR VOLTAIC CELL THE HIGH INTENSITY SOLAR LIGHT IS
CONVERTED IN TO ELECTRIC ENERGY
SIMILAR TO THE GROUND BASED TRANSMISSION

11. RECTENNA
• An antenna absorbing microwave energy from
a transmitter and converting it into electric
power.
• Micro waves of 2.4 GHz frequency are used to
transmit power
• Diameter around 5km.
• 95% of the beam is fall on the rectenna

12. ADVANTAGES
• Unlimited energy resource
• Energy can be delivered any where in the
world
• Zero fuel cost
• Zero carbon dioxide emission
• Most efficiently collected In space only
• High energy out put

13. Time to innovate
• Future generation of electricity
From LIGHTING and THUNDRING
From TIDAL ENERGY
From WATER ENERGY(BUOYANCY FORCE)

15. CONCLUSION
• Our resources are very limited and less
effective so we need to find latest and
alternative methods to generate power
in which this solar satellite can be an
evolution

16. Any Quires????