Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

HomeScience ReportsReports and NewsPower and Electrical Engineering

Energy policies relating to alternative energy

Current energy policies are still based heavily on natural resources. Meanwhile, the trend is increasingly toward alternative resources, such as wind power.

It's only a matter of time before natural resources, such as petroleum, are depleted. Petroleum, a fossil-based energy source deposited across millions of years, is used to produce fuel or electricity. Taking stock of the fact that 260 billion barrels (one barrel = 159 liters) of oil were extracted over the last 11 years, it's evident that the world's petroleum resources will be depleted one day. New developments in solar or wind power are aimed at providing alternative energy sources that will enable us to maintain our current standard of living. Petroleum is also required by the chemical industry to manufacture special plastics.

The advantages and disadvantages of alternative energy sources

When discussing the subject of petroleum and alternative energy, one must bear the advantages and disadvantages in mind. Our resources are running short . Because we cannot count on petroleum for the future, there will come a time when everyone will rely on the efficiency of wind power and other alternative energy sources . Unlike petroleum, wind power can be managed to ensure that it constantly renews itself. Wind power meanwhile makes it possible to have enough resources to supply entire cities. Petroleum has the additional disadvantage of harming the environment through CO2 emissions. This has resulted in increasing demand for resources such as wind power. Wind power can be classified into different categories. A class 4 wind turbine can meanwhile provide resources in a much more efficient manner than petroleum resources for instance. In addition, unlike petroleum, resources such as wind power offer a decentralized energy supply. This means that in contrast to petroleum, the utilization of wind power does not require a large power plant. Instead, it makes "transporting" the energy easier and faster. Decentralized wind power entails a massive infrastructure change. Resources such as wind power certainly bring disadvantages when it comes to the environment, although they pale in comparison to the disasters that can result from petroleum. The utilization of our resources determines how we continue to maintain our standard of living. This makes it important to continue public discourse on the issues of wind power and petroleum.

Resource shortage

It's only a matter of time before there is no petroleum left. For this reason, from a resource standpoint we should already be moving toward heavy reliance on wind power instead of petroleum. After all, from a pure scientific point of view, new petroleum resources won't be available for millions of years. Unlike petroleum, wind power is a resource that will never run dry. In Germany alone, wind power is serving as a popular alternative resource to petroleum. The demand for wind power will increase in line with the consumption of petroleum. For this reason, it is imperative that we gradually move away from petroleum and make more use of wind power or other alternative energy resources. The environmental pollution caused by petroleum is reason enough for an environmentally-conscious society to use solar or wind power. In contrast to petroleum, wind power is significantly better for the environment and offers a unique resource balance.

Power and Electrical Engineering

This topic covers issues related to energy generation, conversion, transportation and consumption and how the industry is addressing the challenge of energy efficiency in general.

innovations-report provides in-depth and informative reports and articles on subjects ranging from wind energy, fuel cell technology, solar energy, geothermal energy, petroleum, gas, nuclear engineering, alternative energy and energy efficiency to fusion, hydrogen and superconductor technologies.

Page anfang | 1 | 2 | 3 | 4 | 5 | ende

Improved stability of plastic light-emitting diodes

Polymer light-emitting diodes (PLEDs) are attractive for use in large–area displays and lighting panels, but their limited stability impedes commercialization. Scientists of the Max Planck Institut for Polymer Research (MPIP) in Mainz have discovered the reasons for instability.

Monitor screens and smartphones that can be rolled and folded up are applications that could become possible in the future thanks to the development of polymer...

19.04.2018 | nachricht Read more

Intelligent components for the power grid of the future

Kiel research team presents prototypes at the Hannover Messe

Fast charging of electric cars requires a lot of energy in a short period of time. These peak loads lead to bottlenecks in the power grid, and are one of the...

18.04.2018 | nachricht Read more

Real-time layer thickness measurement with terahertz

Terahertz is a key technology for non-destructive material testing. Major advantages are examinations without physical contact and the analysis of complex systems with a low contrast range, in which established methods like ultrasonic usually fail. The Fraunhofer Heinrich Hertz Institute HHI has successfully developed a cost-efficient and compact measurement system that conducts real-time measurements of the thickness of multi-layer systems for the first time, an essential technology e.g. for lacquering lines. The new terahertz measurement system T-Sweeper will be presented live at the Hannover Messe trade fair from April 23 to 27, 2018 (Fraunhofer booth C22, hall 2).

Terahertz radiation was already a major topic a good ten years ago, in connection with body scanners for inspecting passengers during airport security...

17.04.2018 | nachricht Read more

One light pulse escapes from the other while changing its color

Scientists from Hamburg University of Technology (TUHH), ITMO-University St. Petersburg, Menoufia Uni-versity, University of York, University of St. Andrews, Tyndall-Institute Cork, Sun Yat-sen University Guang-zhou, and Helmholtz-Zentrum Geesthacht realized a novel effect in silicon based optical waveguide chips which were particularly designed and fabricated for this nanophotonic experiment. In a special dispersion engineered photonic crystal waveguide a pump light pulse of duration of only six trillionths of a second chases a second slower signal light pulse.

When the pump pulse reaches the signal pulse, upon interaction, the signal pulse accel-erates, changes its frequency, respectively its color, and finally...

16.04.2018 | nachricht Read more

Thin engineered material perfectly redirects and reflects sound

Metamaterial device controls transmission and reflection of acoustic waves

Metamaterials researchers at Duke University have demonstrated the design and construction of a thin material that can control the redirection and reflection...

11.04.2018 | nachricht Read more

Berkeley engineers build smallest volume, most efficient wireless nerve stimulator

In 2016, University of California, Berkeley, engineers demonstrated the first implanted, ultrasonic neural dust sensors, bringing closer the day when a Fitbit-like device could monitor internal nerves, muscles or organs in real time. Now, Berkeley engineers have taken neural dust a step forward by building the smallest volume, most efficient wireless nerve stimulator to date.

The device, called StimDust, short for stimulating neural dust, adds more sophisticated electronics to neural dust without sacrificing the technology's tiny...

11.04.2018 | nachricht Read more

Milestone study of excitation of electrons in GaAs at the attosecond level

A team of scientists from ETH Zurich in Switzerland and the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) in Hamburg have, for the first time, unraveled the electronic dynamical processes that occur upon excitation of electrons in gallium arsenide at the attosecond timescale.

Fabian Schlaepfer and his colleagues in the experimental group of Ursula Keller at the ETH Institute for Quantum Electronics, together with Angel Rubio and...

04.04.2018 | nachricht Read more

Converts One-third of the Sunlight into Electricity: 33.3 % Silicon-based Multi-junction Solar Cell

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with the company EV Group (EVG) have developed a new silicon-based multi-junction solar cell, which can convert exactly one-third of the incident sunlight into useful electricity. This newest result is now published in the renowned scientific magazine Nature Energy.

Silicon solar cells dominate the global photovoltaic market today with a share of 90 percent. With ever new technological developments, research and industry...

03.04.2018 | nachricht Read more

Cat-like 'hearing' with device tens of trillions times smaller than human eardrum

Developing atomically thin 'drumheads' for ultra-low power communications and sensory devices

Dynamic advances

03.04.2018 | nachricht Read more

Non-toxic filamentous virus helps quickly dissipate heat generated by electronic devices

The researcher team of Tokyo Institute of Technology (Tokyo Tech) discovered that the film constructed by assembling a nontoxic filamentous virus functions as a heat dissipation material, and that can be simply prepared by drying the virus aqueous solution at room temperature. This discovery is expected to elucidate the mechanism of new heat transport in electronics.

Organic polymeric materials generally have low thermal conductivity and are not suitable for rapid heat dissipation of electric and electronic equipment in the...

03.04.2018 | nachricht Read more
Page anfang | 1 | 2 | 3 | 4 | 5 | ende

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: BAM@Hannover Messe: innovative 3D printing method for space flight

At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.

Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...

Im Focus: Molecules Brilliantly Illuminated

Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.

Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Quantum Technology for Advanced Imaging – QUILT

24.04.2018 | Information Technology

AWI researchers measure a record concentration of microplastic in arctic sea ice

24.04.2018 | Earth Sciences

Complete skin regeneration system of fish unraveled

24.04.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>