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1. What is renewable energy? What is clean energy?

Renewable energy is also understood as renewable or completely clean energy. They are created from continuously forming or recoverable sources of use such as wind, rain, heat, solar, geothermal, sea waves, tides.…

Recently, renewable energy has been applied widely and in many fields such as engine fuel, power generation, cooling... in industrial and civil production. Renewable sources are constantly being explored and researched to the goal of using them as effectively as possible. At the same time, this has many benefits in reducing carbon emissions and other pollution.

2. What's the difference between renewable and non-renewable energy?

Renewable and non-renewable energy are two important concepts in modern energy. But, in order to better understand their differences, we need to consider some of the following:

2.1 Reproductive 

Non-renewable energy includes sources such as coal, coal gas, oil, natural gas, uranium ore and other sources that are not renewable. They're distributed all over the world, but this energy will be exhausted over time at a fast pace to keep up with consumption and not recoverable.

Renewable energy, on the contrary, including water, wind, sunlight, biofuels, geothermal temperatures and other sources of energy, is renewable and continuously producing.

2.2 Sustainability

We cannot use non-renewable energy sources like coal, oil, gas... in a long-term manner, because they have limited reserves and are not regenerative. Therefore, this energy source is unsustainable.

Meanwhile, renewable resources like wind, rain, heat, solar, geothermal, ocean waves, tides, etc. have almost endless life. Renewable energy is the key chain that ensures the sustainability of the global economy.

2.3 Environmental impacts

Non-renewable energy in extraction and use often affects resources and the environment. Meanwhile, renewable energy is being used to protect resources and the environment for the next generation by reducing CO2 emissions into the atmosphere, reducing the greenhouse effect... So the use of renewable energy from wind, rain, sunlight, geothermal... is becoming more and more important in life.

3. The Benefits of Renewable Energy

Renewable energy plays an important role in many different areas. Here are five benefits of renewable energy:

• Reducing environmental pollution: The greatest benefit of renewable energy is reducing carbon emissions from coal burners, polluting emissions of vehicles, manufacturing plants, industrial sites and other pollutants to the ground, water and air.
• Conservation of natural resources: Energy sources such as light, wind, water do not have a negative impact on the environment and do not degrade natural resources.
• Reducing the dependence of nations on fossil energy sources: fossil sources such as coal, oil and natural gas are exhausting rapidly. Many countries are concerned about the serious impact on every aspect of life. So, reducing dependence on privileged energy suppliers is a top priority.
• Global temperature control and climate change limitation: Clean energy sources reduce greenhouse gas emissions, reduce carbon and greenhouse agents, and help control global warming.
• Ensure national energy security: Renewable energy increases stability and independence in energy supply. That's why countries are constantly trying to diversify their energy supplies by using as many renewable sources as possible. Helps reduce dependence on external suppliers.

4. Renewable energy, clean energy in the world

4.1 Wind power

Wind energy is generated by differences in temperature and pressure between different regions of the Earth's surface. Wind energy is extracted using wind turbines. As the wind speed increases, the power output also increases to the maximum capacity of the turbine. Wind turbines usually have a large capacity of between 600kW and 9mW.

4.2 Solar power

It's a popular renewable energy source today, used to generate electricity to supply electrical equipment, to heat water... in everyday life, agriculture, industry, without affecting the environment. For example, solar panels do not generate air pollutants, and do not produce greenhouse-effect carbon.

4.3 Hydropower

Hydropower is generated by the movement of turbines and water. Quick-speed waterways like waterfalls generate energy. Hydropower is generally more stable than wind and solar because of the predictability and stability of the water flow. However, the disadvantage of this approach is that it affects people and populations of organisms living in the area. And hydroelectricity also reduces natural flow and shifts flow.

4.4 Bioenergy

Bioenergy, also known as biomass energy, comes from animals, crops, and organic waste. Producing energy from biomass often involves the combustion and decomposition of organic materials such as wood, wood, clay, and clay... to produce heat and electricity. Bioenergy reduces carbon dioxide emissions and limits the use of fossil energy sources, effectively minimizing negative impacts on the environment, climate, and humans.

4.5 Geothermal energy

Geothermal energy is born from the initial formation of the planet and the radioactive degradation of the mineral. With geothermal energy from 80-200 degrees C, can be applied in the drying of fisheries, heating for plants, apartments. Thermal power plants, using steam directly from underground. However, these locations often have special locations just above the big fracture of the earth's base. Our country has a strong geothermal development potential, but the majority is scattered, making it difficult to build large-scale mining plants.

4.6 Solid Waste Energy

The use of solid waste energy is an effective way to recycle organic waste. This conversion not only processes waste into electricity, it also reduces greenhouse emissions. Solid waste energy is now used in many countries, especially in developed countries.

4.7 Flood energy

The tide is used to generate electricity. But with the cost of investment and only in places with high flow rates or high enough tides, the conversion of energy from tides is still very limited.

4.8 Hydrogen energy

Hydrogen supplies power to an electric motor in the same way as a storage battery. If hydrogen fuels are used, pollution in big cities is significantly reduced. This will be an effective solution to preventing the environmental pollution that humans are aiming for in the future.

Sustainable innovations that renewable energy is bringing positive results. Therefore, humans need to make good use of the elements available from nature, driving the clean energy industry in the near future.

5. Thuan Hai Renewable Energy Applications

With its role as a diversified supplier of efficient energy sources to manufacturing plants with the goal of Net Zero, Zhonghai is rapidly catching up with global trends, rapidly converting and using clean renewable energy from biomass sources. Xianghai has invested in biomass plants such as pills, wooden pills and pins with a total capacity of up to 1 million tonnes per year.

Through this, Thuan Hai saves operating costs, is proactive in the supply of energy, and greenens the energy sector. With the support of technology and processing systems that meet international standards, Zhonghai is making an important contribution to the process of promoting the clean energy industry in the near future, bringing Vietnam to the Net Zero commitment by 2030.