The concept of renewable energy is an important one. With the various energy shortage crises looming up ahead, more and more individuals are converting their energy needs to renewable energy sources. This is important as it may be too late in 50 years to reverse the damages to the environment caused by fossil fuels and other types of non-renewable forms of energy. However, although renewable sources of energy are all “environment friendly”, some sources of renewable energy may be more useful and more efficient. This is due to the fact that the efficiency ratio of each renewable energy source are different (some are better than others). In addition, some forms of renewable energy are best for heating, while some types of renewable energy is best for generating electricity.
The most common type of renewable energy is definitely solar energy. Solar power is used mainly for two purposes. The first and the most common purpose is heating. This can be done by generating hot water which can be used by the household or solar heated air and water can be circulated around the house to provide overall heating. This is pretty common in areas that receive good amount of sunlight in summer and winter. The second purpose of solar power is to generate electricity. However, the overall efficiency of conversion to electricity from solar power is around % 15 and this may be way too low for most domestic households.
The second useful type of renewable energy is definitely wind power. With wind power, you can’t use it for heating and it is mainly used for electric generation. However in order to use wind power, you will need to locate your energy production system in a place that is suitable. Unfortunately, it is hard to find locations that have wind 365 days a year. But if the geographical conditions are right, you can have electric energy production with high efficiency.
Geothermal energy is used by the way of geothermal pumps. With this method the natural temperature of the Earth is exchanged with the temperature of your home by the use of geothermal pumps. Although, you still have to use electricity with this method, it does provide you with considerable savings in electricity.