Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

Green energy is on the rise

08.04.2022

From the report of the analytical company Ember, it follows that in 2021, 10% of electricity was generated worldwide from wind and solar energy, which became a new record. In total, 38% of the world's annual electricity was generated from clean energy sources, which also include nuclear energy, hydroelectric power plants and biofuels, which is even more than from burning coal. This gives hope for curbing a possible climate crisis.

According to the Paris climate agreement, it is desirable to limit the increase in global average temperature in the world to 1,5 °C from pre-industrial levels. This will require maintaining an average 10-year increase in solar and wind power generation at 20% until at least 2030. In 2021, for example, the production of solar energy in the world increased by 23%, and wind - by 14%. Together, both renewable sources accounted for 10,3% of total global electricity generation, up 1% from 2020. If the established pace is maintained and if this practice spreads in all countries of the world, the goals of the Paris Agreement are quite achievable, analysts conclude.

If you look at the Ember report in more detail, you can find out that more than 10% of electricity is generated by 50 countries on Earth due to the Sun and wind. In the past two years alone, the fastest transition from fossil sources to the sun and wind has occurred in the Netherlands, Australia and Vietnam. In 10 countries, more than 25% of electricity is generated from the Sun and wind, among which Denmark is the leader with a share of 52%.

Despite the growth of wind and solar energy, coal-fired electricity generation is also showing the highest growth rates. On the one hand, this is happening against the backdrop of the resumption of economic activity in the later stages of the COVID-19 pandemic (which, however, has not yet ended), and on the other hand, the Ukrainian events are forcing certain countries to look for an urgent replacement for hydrocarbons from Russia. Returning to coal, we note that in 2021, coal-fired power generation increased by 9% to 10 TWh, or to 042% of global electricity demand.

According to analysts, the need for electricity in 2021 increased by "one India" or by 5,4% (by 1 TWh). If the momentum in solar and wind power generation growth continues, the world may soon move to a point where any increase in demand will be met by these renewable sources, Ember believes.

In addition to coal, natural gas also contributed to the increase in electricity generation. The share of gas in the global energy sector increased by 2021% in 1. Together, coal and gas, and likely oil products, led to a record increase in greenhouse gas emissions in 2021, surpassing the previous record set in 2018. The largest increase in demand for coal was recorded in China - up 13% in 2021 compared to the level of 2019, before the pandemic. At the same time, China entered the six countries, the contribution of the Sun and wind to the energy sector of which was one of the largest in the world. China will continue to "smoke the sky", but it is also striving to become carbon neutral, although how quickly this will happen is difficult to predict today.

<< Back: Autonomous X-ray machine with artificial intelligence 08.04.2022

>> Forward: Cognifiber Photonic Chip 07.04.2022

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

To get on a plane, just show your watch 30.04.2014

Samsung made a deal with the Spanish airline Iberia a few days ago. Of course, the essence of the deal lies in the use of Samsung devices by the air carrier. More precisely, in this case we are talking about the use of Gear 2 smart watches by Iberia passengers.

A dedicated app for the new Samsung watches will allow customers to present their e-tickets using these devices. Previously, passengers had the opportunity to use a smartphone for these purposes.

Of course, even regular Iberia customers will not rush to buy Gear 2 just for this task. But at least it's a good indicator of how you can still use such wearable electronics.

See full Archive of science and technology news, new electronics


All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024