This document summarizes a seminar on space-based solar power systems. It discusses how solar power could be collected in space via solar panels on satellites, transmitted to Earth via microwave beams, and received on Earth using large rectenna arrays that convert the microwaves to electricity. The concept was first described in 1968 and offers advantages like constant power generation and lack of transmission losses. However, the major disadvantage is the high cost of launching infrastructure to space.

1. A seminar on space based solar power
system
Submitted To
Mr. Santosh Singh Mourya
EC Department
Submitted By
Deepak Chouhan
EC 8th Sem
0823EC 101012

2. Space based solar power
system.

3.  Introduction.
 History.
 What is Satellite.
 Working of solar power system.
 rectenna.
 Advantages.
 Disadvantages.
 References.

4.  Space-based solar power (SBSP) is the
concept of collecting solar
power in space for use on Earth.
 SBSP would differ from
current solar collection methods in that
the means used to collect energy would
reside on an orbiting satellite instead of
on Earth's surface.

5.  The SBSP concept, originally known
as satellite solar-power system
(SSPS), was first described in
November 1968.

6.  A satellite is an artificial object which
has been intentionally placed into
orbit such object are some times
called artificial satellite.

7.  A means of collecting solar power in space,
for example via solar concentrators, solar
cells .
 A means of transmitting power to earth, for
example via microwave or laser
 A means of receiving power on earth, for
example via a microwave antenna (rectenna)

8. 1. Solar satellite
2. Energy transmitted to the earth.
3. Energy received and distributed to
the earth

9.  Large arrays of photovoltaic cells
mounted on a satellite.
 Sun light will be capture and converted
into electricity by photovoltaic panel.
 Panel will remain in sun light 24 hours a
day. Producing a constant source of
base load power.

11.  There is no transmission losses so
each satellite is able to deliver a
quantity of power similar to the
nuclear power plant.
 This energy will safely transmitted by
the radio waves.

13.  This energy is received on the earth
by large easy to assemble grids
called rectenna. and it convert from
microwave to electricity then
distribute it.

14.  A rectenna is a rectifying antenna a
spatial types of antenna. That is used
to convert microwave energy into
electricity.
 They are used in wireless power
transmission that transmitted power
by radio waves.

15.  Eliminationof plant and wildlife interfer
ence.
 There is no air in space, so the collecting
surfaces could receive much more
intense sunlight.
 A satellite could be illuminated over 99%
of the time, and be in Earth's shadow on
only 75 minutes per night at the spring
and fall equinoxes.

16.  The large cost of launching a satellite
into space.
 The space environment is hostile ;
panels suffer about 8 times the
degradation they would on Earth.

17.  www.wikipedia.com
 www.google.com