Write a paragraph within 140 words about advantages and disadvantages of sources of energy Giúp mình với ạ !!
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Solar energy captured by solar panels is a limitless form of energy, as the earth is bombarded with extreme amounts of solar energy every day, according to the National Renewable Energy Laboratory. It's also clean, producing no carbon dioxide, and is very low-maintenance, since solar panels have no moving parts. Unfortunately, the National Renewable Energy Laboratory says its high installation cost makes it up to four times more expensive than the cost of electricity from a standard utility company. For optimal operation and maximum energy production, it requires year-round sunny weather and is very expensive if repair is necessary, according to the U.S. Environmental Protection Agency.
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As the world population is growing bigger and bigger, our energy demands are also growing. Governments and organisations have been trying to find new sources of energy to replace the fossil fuels which are running out. One of the solutions is to use green energy including solar, hydro, wind, geothermal, ocean and biomass. However, there are both advantages and disadvantages to this.
One major advantage is that they are renewable energy, which means they are quite available, cheap to use and can hardly be totally depleted. Thanks to its abundant supply, green energy can also reduce the cost of operation. What's more, as a source of clean energy, they release little or no harm to the environment. While it is easy to see the environmental advantages of using green energy, we must also recognise some of the disadvantages. First, despite the low cost of operation, the initial cost of building and installing these new technologies are considered to be high. Besides, green energy that comes from the sun, wind or water power seems to depend much on weather condition. That's why its supply seems unreliable and unstable. Another disadvantage of using green energy is that it cannot generate enough electricity to meet our demand.
In conclusion, there are both advantages and disadvantages to the use of green energy. Hopefully, many of the disadvantages of these renewable sources of energy will be successfully removed through technological development and research, and they will be exploited fully to replace the fossil fuels.
