How we plug in - Making Carbon-Free Electricity
12 important questions on How we plug in - Making Carbon-Free Electricity
What is the main advantage of nuclear power?
- It's the only carbon-free energy source that can reliably deliver power day and night, through every season, almost anywhere on the earth, that has been proven to work on a large scale.
- The U.S gets 20% and France 70% of its electricity from nuclear power.
The Massachusetts Institute of Technology analyzed in 2018 1,000 scenarios for getting to zero in the U.S, what did they found?
- They investigated the cheapest paths involved using a power source that's clean and always available - like nuclear power - but, without a source like that, it would cost a lot of money to get to zero.
It's not a secret that nuclear power isn't ideal, because it has problems. About what problems speaks Bill Gates?
- It's very expensive to build today
- Human error can cause accidents
- The fuel it uses, can be converted for use in weapons.
- The waste is dangerous and hard to store.
- Higher grades + faster learning
- Never study anything twice
- 100% sure, 100% understanding
For my 1st exam I got a C. Then, I started looking for ways to learn better and I came across Study Smart. Since then I have scored a A+, A, A- and another A. I highly recommend it to everyone who wants to hear it. I am so happy with it!!
I was struggling to finish all my first-year subjects for 3 years. Then I discovered Study Smart, which helped me to finish all of them within 3 months.
Because of StudySmart, things are going well in many ways. Before, I always had study stress and no time for anything. Now I feel calm and confident (because of the program). I used to score a B, now I usually score an A or A+.
Hey Chris, I really want to thank you very much for developing the platform, I usually got around C for my exams, now I scored an A+, an A and a A- !!
Since using Study Smart, my average has increased significantly. I even completed a statistics course with a A+ while I'm bad at statistics. I took on extra courses this year, because of Study Smart. Thanks so much!
Ever since I started studying with StudySmart I passed all my exams !!! No more re-sits!! At first, I was happy with a pass and now I only get good grades. Many thanks!
I aced all the courses I studied with Study Smart. For law, I first scored a D, and now an A! I’m 100% sure that I’ll pass all the courses I study with Study Smart.
I always thought I studied well. My grades were fine. I could never have imagined that applying these study skills would have such a huge and direct impact on my grades, my speed and the pleasure I have in learning.
For the first time, I finally feel totally confident about the way I learn. I have the perfect overview and make great progress in terms of speed and the grades I get. Thanks, Chris!
I immediately started to enjoy learning again, and my grades soared. All of a sudden, everything went better. I highly recommend Study Smart to all students..
Being able to create my materials online made the process of studying so much smoother and quicker. I no longer have to spend a huge amount of my time on creating my summaries.
At first, my notes were a mess. Now I use Study Smart to take my notes in a perfectly structured way. It helps me to save a lot of time and do other things I enjoy.
Students that study with Study Smart get better grades. The system applies all the learning methods in such a way that both well-performing students and students who struggle perform much better.
Hi Chris, I would like to thank you very much. Last year I scored C on a course, and this year I got an A+ thanks to your method! Thank you very much!
The largest effect is that my child is more enthusiastic about school! Every parent wants their children to be happy at school, Study Smart made it happen.
In high school, I failed several exams, and that has really changed now. I actually needed this tool very much back then. Since I started studying with StudySmart, I haven't had any D's. My average score is now an A and those are results I would have never had in the past
With my old method, I passed only 3 out of 8 courses. Since I started taking my notes digitally in Study Smart, I have passed all my courses on the first try. For me, StudySmart takes away the stress of wondering if I will pass or not.
Thanks to StudySmart, I passed all my exams, and with better grades than before! On top of that, I have mastered a very good study method now, which I am confident will help me earn my degree.
Another approach to nuclear power is nuclear fusion. What does this mean?
- Instead of getting energy by splitting atoms apart, as fission does, it involves pushing them together, or fusing them.
What is an advantage of using nuclear fusion?
- It would run on commonly available elements, making the fuel cheap and plentiful.
- Tot indicate this; the main type of hydrogen can be extracted from seawater and the fusion's waste products would be radioactive for hundreds of years.
Can you explain why nuclear fusion is very hard to use?
- It takes so much energy to kick off the fusion reaction that you often end up puttting more into the process than you get out if it.
- It's a huge engineering challenge to build a reactor, becuase none of the existing fusion reactors are designed to produce electricity that consumers could use.
One of the projects that are still under construction, a collaboration between six countries and the European Union (EU), is an experimental facility in southern France known as ITER. What expectations are there for this project?
- The project started in 2010, and by mid-2020s it's expected to generate its first plasma, and to generate excess power - 10 times more than it needs to operate - in the late 2030s.
What advantages does the installation of wind turbines in an ocean have?
- Many major cities are near the cost, so we can generate electricity much closer to the places where it'll be used and not run into as many transmission problems.
- Offshore winds generally blow more steadily, so intermittency is less of an issue too.
How much capacity for generating electricity has the offshore wind?
- 0.4% in 2019 and most of that is in Europe.
- The U.S has 30 megawatts installed and America uses around 11,000 gigatwatts.
How can geothermal generate carbon-free electricity?
- Deep underground, there are rocks than can be used to generate carbon-free electricity.
- We can pump water at high pressure down into the rocks, where it abosrbs the heat and then comes out another hole, where it turns a turbine or generates electricity some other way.
How much is the energy desity of geothermal - the amount of energy we get per square meter - according to David MacKay?
- This is quite low; according to David MacKay (2009) geothermal could meet less than 2% of the U.K energy needs.
What are two disadvantages of geothermal energy production?
- Only 40% of all wells dug for geothermal can't use for electricity, and it's hard to know ahead if the dug is going to produce the heat.
- Geothermal is only available in certain places; areas with aboveaverage volcanic activity.
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
