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ENAGY

Type of power generation




About thermal power generation
＜Power generation method＞

① Converts water to steam using natural gas, coal or oil as fuel.（Click here to learn more.）
② The steam produced hits the turbine.
③ Electricity is generated by the rotation of the turbine.
（The impinging steam returns to water and is reused.）


　　   ＜Merit＞

・High energy conversion efficiency
・Less land required for power generation


＜Demerit＞

・Uses limited resources as fuel
・Emit carbon dioxide

 
Thermal power generation is a power generation method that has developed to the extent that it accounts for 70% of the amount of power generated in Japan. The energy conversion efficiency is high, so you can make a lot of electricity.
There is also a big disadvantage that it emits carbon dioxide, which is the cause of global warming.
From the perspective of global warming, which has a major impact on the survival of humankind, we believe that the number of thermal power plants will need to decrease over time.
　



About nuclear power generation


＜Power generation method＞
① Nuclear fission occurs in a nuclear reactor using uranium as fuel.（Click here to learn more.）
② It produces heat and converts water into steam.
③ The steam produced collides with the turbine, and electricity is generated by the rotation of the turbine.
（The impinging steam returns to water and is reused.）


　　　   ＜Merit＞

・High energy conversion efficiency
・Less land required for power generation


＜Demerit＞

・Uses limited resources as fuel
・Emit carbon dioxide

 
When you hear the word nuclear power, do you think of nuclear accidents? Even now, when reconstruction from the Great East Japan Earthquake has progressed, we still have problems such as treated water from nuclear power plants.
nuclear power generation is a power generation method that has great merits but also has great demerits.
In order for nuclear power generation to develop in the future, how to reduce the danger of radioactive materials will become an important issue.


　



About solar power generation


＜Power generation method＞
① Sunlight hits the solar panel.
② Electricity is generated by converting light energy directly into electrical energy.


　　　   ＜Merit＞

・save money on electricity
・Electricity can be used even if there is a power outage


＜Demerit＞

・expensive installation cost
・Generating capacity is affected by weather

 
Solar power generation is a method of generating electricity using solar panels, and isn't it the most common type of power generation that many people have seen?
The number of houses that incorporate the mechanism of solar power generation is increasing recently. However, there are many homes that do not install it, probably because the installation cost is high or it may be damaged.
However, a self-sufficient power generation method may be necessary for power generation in the future.


　



About hydroelectric power generation


＜Power generation method＞
① Water stored in a dam is dropped from a high place into a low water wheel.
② A rotating water wheel generates electricity.


　　　   ＜Merit＞

・Low expense of power generation and management
・High energy conversion efficiency


＜Demerit＞

・Generating capacity is affected by weather
・Environmental destruction when building dams

 
I feel that the process and prerequisites for hydroelectric power generation seem to be strict.
Precipitation is essential to generate electricity, and building a power plant itself is difficult from the perspective of deforestation.
The amount of power generated by hydroelectric power is not stable, so we believe that there are many points that are insufficient for future power generation.


　



About wind power generation


＜Power generation method＞
① The blowing wind hits the windmill.
② Electricity is generated using the rotation of windmills.


　　　   ＜Merit＞

・Low environmental impact
・High energy conversion efficiency


＜Demerit＞

・Generating capacity is affected by weather
・limited installation space

 
When people hear the word “power generation,” they probably think of the use of wind power propellers.
The biggest disadvantage of wind power generation is that it is easily affected by the weather.


　



About geothermal power generation


＜Power generation method＞
① Steam is produced from the thermal energy of underground magma.
② The steam produced hits the turbine. Electricity is generated by the rotation of the turbine.
③ The impinging steam returns to water and is reused.


　　　   ＜Merit＞

・Low environmental impact
・Stable power generation


＜Demerit＞

・May destroy the cityscape
・Expensive to develop power generation facilities

 
Geothermal power generation is one of the power generation methods that we want to develop in the future. Since there are few fatal disadvantages, we believe that stable power generation can be achieved.
There is a possibility that the problem of landscape can be solved by thinking about the location well, and I think that the government can solve it by paying a reasonable cost for the development of power generation facilities.
I would like to see geothermal power generation become more widespread.


　



About biomass power generation


＜Power generation method＞
① It converts water into steam using biomass fuel as fuel.
② The steam produced hits the turbine.
③ Electricity is generated by the rotation of the turbine
（The impinging steam returns to water and is reused.）


　　　   ＜Merit＞

・Carbon neutral（Equal balance of greenhouse gas emissions and absorption）
・Fuel can be supplied by domestic forestry


＜Demerit＞

・Fuel and transportation of fuel is costly
・Poor power generation efficiency

 
Since biomass power generation is carbon neutral, it is attracting attention as a future power generation method.
It is a pity that it cannot be said that it is a completely perfect power generation because it costs the transportation cost of fuel such as wood.
However, if there is a location where fuel is available, such as a logging site, and the power generation facility is nearby, transportation costs can be reduced, so it can be said to be a very good power source.


　



About tidal power generation


＜Power generation method＞
① Delimit areas with high tides with breakwaters.
② The seawater that flows using the height difference collides with the turbine.Electricity is generated by the rotation of the turbine.
③ Electricity is generated by the rotation of the turbine.


　　　   ＜Merit＞

・Power generated is not affected by the weather
・Stable power generation


＜Demerit＞

・Early deterioration of equipment
・Destruction of marine ecosystems

 
Few people have heard the term tidal power generation.
The mechanism itself is as the name suggests, and it is a method of generating electricity using the ebb and flow of the tide.
However, I don't think we can expect much from it, as it has the major disadvantage of destroying the marine ecosystem.


　



About wave power generation


＜Power generation method＞
There are three types of wave power generation.①The up-and-down motion of the sea surface vibrates the air.
② The up-and-down motion of the waves causes the turbine to turn, generating electricity.
③ It stores seawater and turns a water wheel to generate electricity.


　　　   ＜Merit＞

・Power generation can be predicted

＜Demerit＞

・Installation of equipment that can withstand the environment


 
In 1965, Japan became the first country in the world to commercialize a floating vibrating water column device. Thousands of units are still in operation at home and abroad.
Currently, the Japanese government has not set a target for the introduction of wave power generation, but the Ocean Energy and Resources Promotion Organization has set a target for introduction toward 2050.


　



About solar thermal power generation


＜Power generation method＞
① Sunlight is collected by a lens and converted into thermal energy.
② The generated heat energy converts water into steam.
③ The steam produced hits the turbine.
④ Electricity is generated by the rotation of the turbine.
（The impinging steam returns to water and is reused.）


　　　   ＜Merit＞

・Can generate electricity at night
・Lower cost than solar power


＜Demerit＞

・Require a large area of land
・No power generation when it rains

 
Solar thermal power generation is often mistaken for solar power generation, but the mechanism of power generation is completely different.
Photovoltaic power generation converts light energy directly into electrical energy, while solar thermal power generation uses the rotation of a turbine to convert light energy into thermal energy.
It is the same as thermal power generation in terms of hitting steam against a turbine, but it can be said to be a good power generation method because it does not emit carbon dioxide or use fuel.
Solar thermal power generation is one of the power generation that is expected to grow in the future and is actively invested in.


　



About Snow and ice thermal power generation


＜Power generation method＞
It is used to store snow and ice and to send cold breezes in summer. For this reason, it is done in Hokkaido and Tohoku.　　　　　　　 　　　　　　　


　　　   ＜Merit＞

・Environmentally friendly with no carbon dioxide emissions.
・Low cost


＜Demerit＞

・Limited areas available for power generation
・Power cannot be generated in winter.
・The amount of snowfall is unstable.

 
The resource is abundant and is attracting a lot of attention.
Use of snow and ice thermal power makes a good impression on the company.


　







What I thought

We have learned that there are many different types of power generation.We created this page in the hope that you will learn about power generation and become interested in it.


参考文献
・関西電力株式会社
(URL:https://www.kepco.co.jp/)(参照:2023.1.8)

・電気・ガス見直しサイト「エネチェンジ」
(URL:https://enechange.jp/)(参照:2023.1.8)

・中国電力
(URL:https://www.energia.co.jp/)(参照:2023.1.8)

・株式会社エコスタイル～子供たちの未来にエコ電力～
(URL:https://www.eco-st.co.jp/)(参照:2023.1.8)

・エバーグリーン・マーケティング
(URL:https://www.egmkt.co.jp/)(参照:2023.1.8)

・SBエナジー
(URL:https://www.sbenergy.jp/)(参照:2023.1.8)

・資源エネルギー庁 - 経済産業省
(URL:https://www.enecho.meti.go.jp/)(参照:2023.1.8)

・脱炭素ポータル - 環境省
(URL:https://energy-shift.com/news/26af4e0b-0db9-40d8-a12d-1f3153c498b5)(参照:2023.1.8)

・アスエネメディア | SDGs、脱炭素
(URL:https://earthene.com/media/290)(参照:2023.1.8)

・新電力ネット: 新電力の総合情報支援サイト
(URL:https://pps-net.org/) (参照:2023.1.8)

・楽エネ（太陽光発電・蓄電池・ソーラーパネル専門商社）
(URL:https://rakuene-shop.jp/columns/2621/) (参照:2023.1.8)






Activity record

2023/1/4     Twitter has been set up.
2022/12/20     Selected as semi-finalists.
2022/11/4     'GASUTENANI (Gas Science Museum)'. I went to
2022/10/30     I went to the Chiba Prefectural Museum of Modern Industrial Science and Technology.
2022/10/21     Selected as school representative.
2022/8/28     MEET meetings were held to report on progress during the summer holidays.
2022/8/7     We visited the Kumejima Ocean Thermal Energy Conversion Demonstration Test Facility.
2022/7/2     Started building a website.
2022/6/11   Groups formed.


We're also on twitter! I post tidbits and such, so please come check it out!