Sagot :
Advantages of Solar Power
Solar energy remains popular because it is both a renewable and clean source of energy. These advantages along with the hope that eventually nations can use solar power to decrease global warming ensure its popularity.
- Renewable
Solar energy is a true renewable resource. All areas of the world have the ability to collect some amount of solar power and solar power is available for collection each day.
- Clean
Solar energy is non-polluting. It does not create greenhouse gases, such as oil based energy does, nor does it create waste that must be stored, such as nuclear energy. It is also far more quiet to create and harness, drastically reducing the noise pollution required to convert energy to a useful form. Residential size solar energy systems also have very little impact on the surrounding environment, in contrast with other renewable energy sources such as wind and hydro electric power.
- Low Maintenance
Solar panels have no moving parts and require very little maintenance beyond regular cleaning. Without moving parts to break and replace, after the initial costs of installing the panels, maintenance and repair costs are very reasonable.
Disadvantages of Solar Power
Solar power remains rare in many countries due to some fairly significant drawbacks:
- Cost
The largest problem of using primarily solar energy is the cost involved. Despite advances in technology, solar panels remain almost prohibitively expensive. Even when the cost of the panels is ignored, the system required to store the energy for use can also be quite costly.
- Weather Dependent
Although some solar energy can be collected during even the cloudiest of days, efficient solar energy collection is dependent on sunshine. Even a few cloudy days can have a large affect on an energy system, particularly once that fact that solar energy cannot be collected at night is taken into account.
- Geographic Limitations
While some areas would benefit from adapting solar power, other parts of the world would receive little benefit from current solar systems. Solar panels still require direct sunlight to collect large amounts of power, and in many areas of the world there are few days that would efficiently power a system.