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1.
Solar Power Advantages
There are many solar power advantages worth noting. In no particular order (well, perhaps simply the order in which they come to mind), here are some of the top advantages:
Solar power helps to slow/stop global warming. Global warming threatens the survival of human society, as well as the survival of countless species. Luckily, decades (or even centuries) of research have led to efficient solar panel systems that create electricity without producing global warming pollution. Solar power is now very clearly one of the most important solutions to the global warming crisis.
Solar power saves society billions or trillions of dollars. Even long before society’s very existence is threatened by global warming, within the coming decades, global warming is projected to cost society trillions of dollars if left unabated. So, even ignoring the very long-term threat of societal suicide, fighting global warming with solar power will likely save society billions or even trillions of dollars.
Solar power saves you money. Putting solar PV panels on your roof is likely to save you tens of thousands of dollars. The average 20-year savings for Americans who went solar in 2011 were projected to be a little over $20,000. In the populous states of New York, California, and Florida, the projected savings were over $30,000. In the sunny but expensive paradise known as Hawaii, the projected savings were nearly $65,000!
Beyond solar PV panels, it’s worth noting that solar energy can actually save you moneyin about a dozen other ways as well — with proper planning and household design choices.
Solar power provides energy reliability. The rising and setting of the sun is extremely consistent. All across the world, we know exactly when it will rise and set every day of the year. While clouds may be a bit less predictable, we do also have fairly good seasonal and daily projections for the amount of sunlight that will be received in different locations. All in all, this makes solar power an extremely reliable source of energy.
Solar power provides energy security. On top of the above reliability benefit, no one can go and buy the sun or turn sunlight into a monopoly. Combined with the simplicity of solar panels, this also provides the notable solar power advantage of energy security, something the US military has pointed out for years, and a major reason why it is also putting a lot of its money into the development and installation of solar power systems.
Solar power provides energy independence. Similar to the energy security boost, solar power provides the great benefit of energy independence. Again, the “fuel” for solar panels cannot be bought or monopolized. It is free for all to use. Once you have solar panels on your roof, you have an essentially independent source of electricity that is all yours. This is important for individuals, but also for cities, counties, states, countries, and even companies. I was recently in Ukraine touring various cleantech initiatives and projects. While there, I discovered that Ukraine in recent years has saved approximately $3 billion in reduced oil and gas imports from Russia thanks to the solar power plants developed by a single developer. Impressive.
Solar power creates jobs. As a source of energy, solar power is a job-creating powerhouse. Money invested in solar power creates two to three times more jobs than money invested in coal or natural gas. Here’s a simple chart on that point:
So, there are 7 big solar power advantages that you should remember and share. There are actually several more, but I think we can leave it at that for today. Let’s move on to solar power disadvantages….
Solar Power Disadvantages
Solar power disadvantages are actually not so plentiful. In fact, there’s only one notable disadvantage to solar power that I can think of. That disadvantage is that the sun doesn’t shine 24 hours a day. When the sun goes down or is heavily shaded, solar PV panels stop producing electricity. If we need electricity at that time, we have to get it from some other source. In other words, we couldn’t be 100% powered by solar panels. At the very least, we need batteries to store electricity produced by solar panels for use sometime later.
However, there are a couple of key things to note regarding this solar power disadvantage. Firstly, the sun actually does shine when we need electricity most. As humans (not vampires), our days more or less follow the movement of the sun. Society more or less wakes up when the sun rises. At the time of the sun’s greatest height and visibility, humans tend to be most active. At this time, we are of course using much more electricity than in the middle of the night, so electricity is in greater demand. (This also makes electricity more expensive in the middle of the day, making electricity produced from solar panels more valuable.)
Another important point worth noting on this front is that, with storage, solar power could theoretically supply the world with all of its electricity needs. In fact, nothing on earth compares to the energy potential of sunshine:
Dear friends,
Today I want to tell you about the energy that can be restored and irreversible.
Fossil fuels are irreversible energies. They include oil, coal and natural gas. They can be used to generate energy, generate electricity, or drive heavy machinery. Unfortunately, they are harmful to the environment. Vietnam is still dependent on unrecoverable energy sources, but hydropower is increasingly used here.
Hydropower and nuclear energy can generate a lot of energy. They can recover and many. However, hydropower is limited because dams can not be built in some areas.
Nuclear power can provide enough electricity for worldwide needs, but it is dangerous.
Sun and wind are alternative sources of energy. Wind turbines rotate wind turbines to generate electricity. Solar power can be converted into electricity. It can be stopped for heating or cooling the house, although there are some disadvantages but these alternative sources of energy can bring a lot of safe and clean. They will be more and more important in Vietnam in the future.
Advantages:
When you move to different places in your lifetime, you gain more experience from living among different kinds of people, eating different food, and working different types of jobs for different companies. You learn how to talk to and befriend wit all kinds of people. You'll have an awesome resume because of the many jobs and experiences you gain from different companies. Life won't be bored to you, because everything is constantly changing for you.
Disadvantages:
When you move around often in your lifetime, you would have to pack and unpack everything you own in your house. This takes a lot of time. Moving around too often doesn’t let you develop a good and trustworthy relationship with others. You have to constantly adapt to the changes when you move to a different place. This might stress you out in the long run.
There are some tips to save power which I think are very easy to apply. Firstly, we should use energy saving light bulbs in our house. It will help us to reduce our electricity bill. Secondly, we should use public transport if we need to go long distance. We can use bicycles for short distances. I think it is good for our health and economical. And remember, before going to bed, we should turn off all lights and other unused electrical devices. It's an easy way to save our planet.
D. Complete the collocations. Use do , make and take . an application, a choice, a complaint, a decision, an effort, an excuse, an impression, a living, a profit, money, progress, someone redundant, up one 's mind, a chance, advantage ( of ), a risk, control ( of ), part ( in ), place, something for granted, something into account, an exam, a decision, a favor, a job , business, a course, an exam, good, harm, homework, one's best, research, revision.
DO: ..a favor, a jon, business, a course, an exam, good, harm, homework, one's best, research , revision..
TAKE:..advantage of, a risk, comtrol of, part in, place, something for granted, something into account, an exam, a decision.
MAKE:...an application, a choice, a complaint, a decision, an effort, an excuse, an impression, a living, a profit, money, progress, someone redundant, up one's mind,
1. How many types of energy sources mentioned in the text? What are they?
– Two. They are renewable and non-renewable.
2. What are the disadvantages of hydro and nuclear power?
– Hydro power is limited because dams can not be built in certain areas. Nuclear power is dangerous.
3. Why do you think the wind and the sun are called alternative sources of energy?
– Because they are natural sources of energy and we use them instead of non-renewable sources.
4. What types of energy does Viet Nam use most?
– We use non-renewable sources of energy the most but we are increasingly using hydro power.
.
5. What does the professor think Viet Nam will use more in the future?
– He thinks Vietnam will use the wind and the sun as alternative sources of energy in the future.
1. Solar
2. Biogas
3. Natural gas
4. Hydro
5. Coal
6. Oil
7. Nuclear
8. Wind
2. Fill in the blanks with the words in the box
1 . _____ solar_____ enery comes from the heat of the Sun .
2 . _____biogas_____ can be produced by dead plants and animals as they decay .
3 . ____natural______ is often found in the ground , consisting mainly of methane .
4 . _____hydro_____ enery is enery that comes from the force of moving water
5 . _____coal_____ is flammable black hard rock , used as a fossil fuel .
6 . ____oil______ commonly known as petroleum , is the largest sourceof energy in the US .
7 . To produce ___nuclear______ energy , atoms are split apart , which releases energy .
8 . _____wind_____ energy is produced from moving air with the help of large turbines
tự suy nghĩ cũng ra. mặt trời có ích lợi gì ( chiếu sáng, sưởi ấm,..) bất lợi (hạn hán, nắng nóng, dễ cháy nổ, cháy rừng,....)