What are the energy sources in today s society 5

Energy can be divided into primary energy and secondary energy, primary energy such as coal, oil, etc., secondary energy such as electricity. Energy can also be divided into renewable energy and non-renewable energy, I think renewable and non-renewable need not be explained! You say what are the specific energy sources, and there are a lot of them, such as:

Wind energy, tidal energy, geothermal energy, atomic energy, etc., of course, including what the friends said above, there are still many, many energy sources that we humans have not discovered or developed, so I also hope that you will study hard and work hard to find and develop new energy sources and contribute to the survival of our human beings!

Energy. Any matter that can provide a certain form of energy, or an energy resource produced by the movement of matter, is collectively referred to as energy. There are many types of energy in nature, which can be divided into according to energy and formation and **

Energy from the sun. Green plants on the earth convert solar energy into chemical energy in plants through photosynthesis, providing energy for humans and various organisms. Coal, oil, natural gas, etc. are essentially solar energy fixed in geological time.

Earth's internal energy, such as geothermal, nuclear. Tidal energy formed by gravitational attraction between the Earth and the Moon and the Sun. The utilization and development of energy plays a major role in the social and economic development of mankind.

Solar, coal, oil, gas, electricity... But the energy crisis is serious!

Energy sources include fuel-based energy, such as coal, oil, natural gas, peat, wood, etc. Non-fuel energy, such as hydropower, wind energy, geothermal energy, marine energy, etc.

Energy is a substance that can provide kinetic energy, mechanical energy, and energy to humans. Human beings began to use fire, the earliest fuel was wood, and then began to use various fossil fuels, such as coal, oil, natural gas, peat, etc.

At present, the consumption of fossil fuel is very large, and the reserves of these fuels on the earth are limited. In the future, uranium and thorium will provide most of the energy the world needs. Once the technical problem of controlling nuclear fusion is solved, humanity will actually have access to endless energy.

The energy problem of our country:

1. Resource constraints are prominent, and energy efficiency is low.

China's high-quality energy resources are relatively insufficient, which restricts the improvement of the best capacity; The uneven distribution of energy resources also increases the difficulty of sustained stability.

2. Energy consumption is dominated by coal, and the pressure on the environment is increasing.

Coal is the main energy source in China, and the coal-based energy structure will be difficult to change for a long time to come. The backward mode of coal production and consumption has increased the pressure on environmental protection. Coal consumption is the main cause of soot-based air pollution and the main source of greenhouse gas emissions.

At present, the main energy sources in the world office are:

Nuclear, coal, oil, gas, solar, and wind.

1. Abundant resources, generally renewable characteristics, for human sustainable use; For example, onshore wind resources are estimated to be 253GW of wind resources, which were only exploited as of 2003, and are expected to reach 4GW by 2010 and 20GW by 2020, while solar PV on-grid and off-grid applications are expected to increase by 1 to 2 GW by 2020.

2. The energy density is low, and the development and utilization require large space.

3. It does not contain carbon or has little carbon content, and has little impact on the environment.

4. It is widely distributed, which is conducive to small-scale decentralized utilization.

5. Intermittent **, large volatility, not conducive to continuous energy supply.

6. In addition to hydropower, the development and utilization cost of renewable energy is higher than that of fossil energy.

Policies and resources have always been an important factor affecting the layout of China's new energy industry. In recent years, under the influence of regional policies and resources, relying on the industrial base of various regions, the agglomeration characteristics of China's new energy industry have emerged. At present, a new energy industry agglomeration area with the Bohai Rim, the Yangtze River Delta, the southwest, and the northwest as the core has been initially formed.

In addition, the new energy industry in each agglomeration area has developed rapidly and has obvious characteristics. Among them, the Yangtze River Delta region is the highland for the development of China's new energy industry, gathering about 1 3 of the country's new energy production capacity; The Bohai Rim region is an important R&D and equipment manufacturing base for China's new energy industry. The northwest region is an important construction base for new energy projects in China; The southwest region is an important silicon material base and nuclear power equipment manufacturing base in China.

The energy used in our country is mainly fossil fuels. Also known as ore fuel, a hydrocarbon or its derivatives, including natural resources such as coal, oil and natural gas. The use of fossil fuels can enable large-scale industrial development and replace waterwheels.

But fossil fuel extraction and burning can cause a lot of environmental harm.

Coal Introduction: Coal is a plant buried in the ground by the action of underground and geothermal heat, after tens of millions or even hundreds of millions of years of carbon cavitation process, release water, carbon dioxide.

Methane and other gases are formed by reducing the oxygen content, and the carbon content is very rich. Due to the different geological conditions and the degree of evolution, the carbon content is different, which generates heat.

It's different. According to the order of calorific value, it is divided into anthracite, bituminous coal and lignite. Coal is widely distributed on the earth and is not concentrated in a certain origin.

Petroleum oil is a hydrocarbon formed by the action of high pressure due to the accumulation of microbial remains in water. After refining oil, gasoline and kerosene can be obtained.

Diesel and heavy fuel oil. Oil is unevenly distributed on the planet, the Middle East.

54 per cent, North America 12 per cent, South America 9 per cent, and attack nuclear weapons account for almost 3 4 of the confirmed burials.

Oil shale and oil sands are formed by algae, which contains too much ash and most of them cannot spontaneously combust. Oil sands are sands containing 4-20% heavy oil. Oil shale and oil sands are more abundant on the American continent.

Natural gasNatural gas is extracted directly underground and contains mainly methane. In Celsius.

minus 162 degrees Celsius is cooled, liquefied and used as liquefied natural gas.

Conveyed with oil tanks. The distribution of natural gas is also very biased towards the Middle East, the Americas and the European continent.

Energy is the foundation of human survival, and the country mainly uses coal energy.

Among conventional energy and new energy, the energy that has been widely used by human beings and has played an important role in human life and production is called conventional energy.

It usually refers to four types: coal, oil, natural gas, and hydropower. The energy resources that have only recently been developed and utilized by human beings and need to be further researched and developed are called new energy, and compared with conventional energy, there are different types of new energy in different historical periods and scientific and technological levels.

In China's conventional energy, coal, oil, natural gas, hydro, and other nuclear energy, biomass energy, solar energy, wind energy, etc.

Energy refers to the resources that can provide energy. The energy here usually refers to thermal energy, electrical energy, light energy, mechanical energy, chemical energy, etc.

The term "energy" used to be talked about a lot, and it was the two oil crises that made it a hot topic of discussion.

There are about 20 definitions of energy. For example: "Energy is a resource from which energy such as heat, light, and power can be obtained";

The Encyclopædia Britannica says: "Energy is a term that includes all fuels, running water, sunlight and wind, which man can use by appropriate means of conversion to provide himself with the energy he needs";

The Encyclopedia of Japan says: "In various production activities, we use heat, mechanical, light, and electrical energy to do work, and various carriers in nature that can be used as the source of these energies are called energy";

China's "Energy Encyclopedia" says: "Energy is an energy-carrying resource that can directly or through conversion to provide any form of energy required by human beings, such as light, heat, and power." ”

It can be seen that energy is a source of energy in various forms that can be converted into each other. To be precise and simply, energy is a material resource in nature that provides some form of energy to humans.

Energy is also known as energy resources or energy resources. It refers to the general term for substances that can produce various energies (such as heat, electricity, light, and mechanical energy) or work that can be done. It refers to various resources that can be directly obtained or obtained through processing and conversion.

Including coal, natural gas, coalbed methane, hydropower, nuclear energy, wind energy, solar energy, geothermal energy, biomass energy and other primary energy and electricity, heat, refined oil and other secondary energy, as well as other new and renewable energy.

Energy source, also known as energy resources or energy resources, is an important material basis of the national economy, and the future fate of the country depends on the control of energy. The degree of development and efficient use of energy and per capita consumption are important indicators of production technology and living standards. (Encyclopedia of China, Mechanical Engineering Volume).

In the Energy Conservation Law of the People's Republic of China, the term "energy" refers to coal, oil, natural gas, biomass energy, electricity, heat and other resources that obtain useful energy directly or through processing and conversion.