ADVANTAGES AND DISADVANTAGES OF SOLAR POWER
1. Solar energy
is free although there is a cost in the building of ‘collectors’ and
other equipment required to convert solar energy into electricity or hot
2. Solar energy does not cause
pollution. However, solar collectors and other associated equipment /
machines are manufactured in factories that in turn cause some
3. Solar energy can be used in
remote areas where it is too expensive to extend the electricity power
4. Many everyday items such as
calculators and other low power consuming devices can be powered by
solar energy effectively.
5. It is estimated that the worlds
oil reserves will last for 30 to 40 years. On the other hand, solar
energy is infinite (forever).
1. Solar energy can only be
harnessed when it is daytime and sunny.
2. Solar collectors, panels and
cells are relatively expensive to manufacture although prices are
3. Solar power stations can be built
but they do not match the power output of similar sized conventional
power stations. They are also very expensive.
4. In countries such as the UK, the
unreliable climate means that solar energy is also unreliable as a
source of energy. Cloudy skies reduce its effectiveness.
5. Large areas of land are required
to capture the suns energy. Collectors are usually arranged together
especially when electricity is to be produced and used in the same
6. Solar power is used to charge
batteries so that solar powered devices can be used at night. However,
the batteries are large and heavy and need storage space. They also need
replacing from time to time.