The Natural Resources Defense Council (NRDC) defines a renewable resource as a resource that continues to exist or replenishes itself over time despite being consumed, a source of energy that does not run out, and a source of energy that provides a continuous supply of clean sustainable energy, such as the sun, wind, water, geothermal and biomass.
What are the renewable resources?
(1) Solar Energy. Solar energy is almost considered the simplest, universal energy source, but also the only renewable resource that can be used by the public, the cost is the smallest of all renewable resources, simple solar panels, inverters can be the ubiquitous sun into electricity used in ordinary homes, the large-scale expansion of which can become known as solar power systems.
(2) Wind energy. The most popular method of obtaining wind energy is wind turbines, they are huge, when the wind blowing through the huge fan blades driven to provide kinetic energy for the generator, it realizes the conversion of wind energy to electricity. Wind turbines are usually set up in windy areas and require careful planning and specific areas to maximize the benefits.
(3) Hydropower. Hydroelectric plants are often accompanied by the construction of dams, which on the one hand can control flooding and on the other hand, the energy generated by the difference in water potential is huge, and the power generated by a huge dam is enough to supply a city with a day’s worth of electricity.
(4) Geothermal energy. Similar to traditional thermal power generation, geothermal energy is also the use of thermal power generation, the difference is that geothermal energy from the earth, in the long years of the earth this energy can be said to be endless, this energy itself from the core of the earth’s plate movement, this energy is huge, if you increase the use of the prospect will be unlimited.
(5) Biomass energy. Essentially biomass energy is the synthesis of all plant energy, plants can grow repeatedly, from the source of biological quality can also be sustainable, but the low utilization rate of human beings cause the use of gradually greater than the production of this energy will become unsustainable.
What are the advantages of renewable resources?
(1) The energy cost of renewable resources is low, light, wind and other ubiquitous is the real meaning of free resources.
(2) almost no pollution of the environment, the source of energy are from the environment itself, do not need to be burned like the discharge of pollution in exchange for energy
(3) the source of energy is almost unlimited, any kind of energy can be effectively utilized to a great extent to meet the current stage of mankind’s energy needs.
The shortcomings of renewable energy
(1) The source of energy is intermittent, renewable resources will be affected by environmental factors, the moment energy conversion is not stable.
(2) The conversion efficiency is low, due to technical constraints, the actual loss of energy is far greater than the collected energy
(3) The conversion cost is extremely high. In addition to solar energy, other renewable resources can not be utilized by individuals, which is also a large cost at the national level, especially water energy and geothermal energy.
Summarize
The renewable energy is the prospect of future development and trends, the existence of solar panels makes renewable energy deep into the public, with the technological breakthroughs in the use of energy efficiency will be greatly increased.
