| In the age of energy scarcity people are seeking | | | | appliances consume less energy than old ones. So, it |
| alternative sources of power generation. One of the | | | | might be a good idea to replace old appliances with |
| most popular methods used is solar power. The | | | | new ones when it is appropriate. |
| popularity of using solar power as an alternative | | | | The second factor in having sustainable energy is |
| source of energy is due to the abundance of solar | | | | alternative power sources. The developments of such |
| power systems and the solar power information to | | | | sources are advancing by the passage of time. Now |
| support these systems. | | | | scientists talk about three generations of alternative |
| The emphasis that has been placed lately on the | | | | power sources. |
| subject of alternative power generation rose when | | | | First generation was called hydro power. This entails |
| people were seeking a way to achieve sustainable | | | | the construction of dams. The power generation |
| energy. Sustainable energy by definition means the | | | | station is constructed near the dam and the power of |
| ability to meet current power requirements without | | | | water is used to generate electricity. |
| sacrificing the requirements of future generations. | | | | Although this kind of alternative power source is cost |
| Using solar power or another source of power | | | | efficient over the long run, it has a number of limitations, |
| generation is a step in the right direction. However, this | | | | most importantly the scarcity of natural resources in |
| factor is not the only factor to take into consideration | | | | many places. This led the scientists to research for |
| in case we want to optimize our use of sustainable | | | | another sources of alternative energy where natural |
| energy. | | | | sources are more abundant and where the cost of |
| Scientists have identified two factors when discussing | | | | constructing these systems are less expensive. |
| the sustainable energy issue. These two factors are: | | | | The second generation of alternative power sources |
| power consumption efficiency and alternative power | | | | saw the introduction of solar power systems and wind |
| generation. | | | | turbines. It was in this stage that people became |
| The first factor is the efficiency in power consumption. | | | | aware of the importance of using the power of the |
| In order to have sustainable energy we should change | | | | sun and the age of solar power information rose. |
| our consumption habits. There is no point to shift to | | | | The third generation introduced additional ways to |
| alternative sources of energy generation if the energy | | | | produce alternative energy such as solar thermal |
| that we have is not utilized efficiently. | | | | power stations, ocean power, and hot dry rock |
| Efficiency in power consumption should come as a | | | | geothermal energy. All these methods to generate |
| first step and after that it can be supplemented by the | | | | alternative power are considered relatively new and a |
| alternative source of power generation. | | | | lot of research and development are being done in |
| To achieve consumption efficiency, first we should | | | | these fields. |
| identify which electric appliances consume most of the | | | | Using solar energy or any other kind of alternative |
| energy and then a plan should be made to control their | | | | power source is becoming more and more necessary. |
| consumption, mainly by limiting the waste of usage that | | | | Combined with more reasonable consumption habits |
| occurs when running the appliances when not needed. | | | | we will be on our way to having sustainable energy. |
| Moreover, with the advancement of technology newer | | | | |