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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.
5. Talk about your favourite sport
I would like to talk about a sport that I particularly enjoy and have been practising for a few years. It is basketball. For me, this is not only a sport or a physical exercise but also an ideal way for me to relieve of stress and to make new friends.
I first knew about basketball when I was a little kid through a video game called NBA 2k8. However, at that time I did not play badminton at all, partly because I was not an active kid who was aware of the critical importance of physical exercises. When I went to high school, a lot of my friends were a big fan of basketball and my high school offered big playgrounds for sports activities, therefore I practised basketball much more often.
I usually play basketball in the weekends and watch NBA on the nights when my favorite team, the Los Angeles Lakers play. I often go to sports centres with a number of my classmates for basketball matches. Sometimes we even participate in local league, didn’t accomplish anything big but it was extremely fun.
For me, basketball is a good way to help me pursue a healthy lifestyle. It is also an affordable type of sport as you do not have to buy a lot of specialised sports materials. Finally, playing basketball enables me to develop a number of important and non-academic skills such as discipline, team-work, problem-solving and co-operation.
There are two kinds of energy in our life. They are renewable and non-renewable sources of energy. The non-renewable energy sources include oil,coal,natural gas,... The renewable energy sources include wind, solar, biogas, hydro,... Therefore, we should use more renewable energy than non-renewable ones in the future, because the non-renewable energy sources produce a lot of carbon dioxide. That's bad for the environment, and these energy sources are going to run out soon. The renewable energy sources are abundant, cheap, clean and they're eco-friendly. They will last forever.
Renewable energy comes from a source that will not deplete. Two common examples of this type of energy are solar power and wind power. Geothermal power, hydropower, biomass, and tidal power are additional forms of renewable energy that produce power for our planet right now.
The primary advantage of renewable energy is that fewer potentially harmful emissions are released into the atmosphere. Although fossil fuels are used to create the products that allow for this power to be produced, most forms of renewable energy can become carbon neutral in 5 years or less.
The disadvantage of renewable energy is that it can be costly. Although wind power and solar power have become cost-competitive with coal-fired power and nuclear power in some communities, some forms are not cost-competitive globally yet when the cost per kilowatt hour is compared. In 2015, the lifetime cost per kilowatt hour of conventional coal was 9.5 cents, while the cost of offshore wind was 15.8 cents.
There are additional advantages and disadvantages of renewable energy to consider as well.
Talk about the advantages and disadvantages of a type of energy
There are lots advantages as well as disadvantages entailed with coal energy and how it can produce electricity. About advantages: Coal energy is very affordable due to its stable price unlike any other forms of energy in the market. The abundance of coal energy is in a large number.It is also easy to burn. Coal energy is a renewable form of energy.Reliability is entailed and presented in this form of energy.Aside from its reliability, coal energy is also inexpensive unlike any other sources of energy.This form of energy is producing high energy upon its combustion process.The power generation scale of coal is great that makes it possible for building a range of sizes of generation plants. Coal is used to build power stations in different parts of the world since it is a fossil fuel as long as there are huge amounts of it. And disavantages: Coal energy is producing tremendous amount of carbon emissions that results in climate change and global warming.Coal burning is considered not environmental friendly due to the production of harmful by-products like nitrogen, carbon dioxide and sulfur dioxide.
3. Coal burning can cause pollution to the environment like acid rain. Coal energy is fast depleting because many people consume a large amount of it It is also ruining the ecosystem and environment and putting many people’s lives in danger especially miners. Underground mining is very hazardous because cave-ins and explosions are common.Unstoppable damages could occur when mining coals.