Portal:Energy

The Energy Portal
Welcome to Wikipedia's Energy portal, your gateway to energy. This portal is aimed at giving you access to all energy related topics in all of its forms.		 Page contents: Selected article • Selected image • Selected biography • Did you know? • General images • Quotations • Related portals • Wikiprojects • Major topics • Categories • Help • Associated Wikimedia

Introduction

A plasma globe using electrical energy to create plasma, light, heat, movement, and a faint sound

Energy (from Ancient Greek ἐνέργεια (enérgeia) 'activity') is the quantitative property that is transferred to a body or to a physical system, recognizable in the capacity to do work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J).

Forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, the internal energy contained within a thermodynamic system, and rest energy associated with an object's rest mass. These are not mutually exclusive.

All living organisms constantly take in and release energy. The Earth's climate and ecosystems processes are driven primarily by radiant energy from the Sun. (Full article...)

Selected article

Brazilian cerrado
The indirect land use change impacts of biofuels, also known as ILUC or iLUC (pronounced as i-luck), relates to the unintended consequence of releasing more carbon emissions due to land-use changes around the world induced by the expansion of croplands for ethanol or biodiesel production in response to the increased global demand for biofuels.

As farmers worldwide respond to higher crop prices in order to maintain the global food supply-and-demand balance, pristine lands are cleared to replace the food crops that were diverted elsewhere to biofuels' production. Because natural lands, such as rainforests and grasslands, store carbon in their soil and biomass as plants grow each year, clearance of wilderness for new farms translates to a net increase in greenhouse gas emissions. Due to this off-site change in the carbon stock of the soil and the biomass, indirect land use change has consequences in the greenhouse gas (GHG) balance of a biofuel. (Full article...)

Selected image

Photo credit: Charliebrown7034
Skyglow over New York City, one form of light pollution.

Did you know?

  • Golar Spirit (pictured) is the world's first floating storage and regasification vessel converted from a LNG carrier?
  • The scientific-technical journal Oil Shale is the only journal in the world that focuses on oil shale as a main subject?

Selected biography

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Michael Faraday (1791 – 1867), an English chemist and physicist, is credited with the discovery of electromagnetic induction, which formed the basis for exploiting electricity as a practical form of energy. His discovery paved the way for the development of generators, induction motors, transformers, and most other electrical machines.

In 1831, Faraday began his great series of experiments in which he discovered electromagnetic induction. He established that a changing magnetic field produces an electric field, a relation mathematically modelled by Faraday's law. Faraday later used the principle to construct the electric dynamo, the ancestor of modern power generators. He went on to investigate the fundamental nature of electricity, concluding in 1839 that, contrary to opinions at the time, only a single "electricity" exists, and the changing values of quantity and intensity (voltage and charge) would produce different groups of phenomena.

Some historians refer to Faraday as the best experimentalist in the history of science. Despite this his mathematical ability did not extend so far as trigonometry or any but the simplest algebra. He nevertheless possessed the ability to present his ideas in clear and simple language. During his lifetime, Faraday rejected a knighthood and twice refused to become President of the Royal Society.

In the news

17 August 2026 –
California's energy commission approves the United States's first energy-efficiency standards for replacement tires, aiming to reduce rolling resistance and lower driver fuel costs by 2029. However, manufacturers warn the strict limits could eliminate up to 70% of current replacement tire options by 2033. (The New York Times) (Fox Business)
11 August 2026 – Syria and weapons of mass destruction
The Syrian transitional government confirms their cooperation with the International Atomic Energy Agency to purge nuclear materials at a hidden facility following a report by Axios on such plan after an agreement between Israel, Syria, and the United States. Conversely, Israel threatens to bombard the site again if the materials remain, and to prevent access to the site. (AA) (Axios) (The Jerusalem Post)
7 August 2026 – International sanctions during the Russian invasion of Ukraine, United States and the Russo-Ukrainian war
The United States Senate votes 86–11 to pass a bill imposing sanctions on Russia's energy revenues, financial institutions, officials, and shadow fleet, while authorizing tariffs of up to 100% on major buyers of Russian oil and gas. The legislation will head to the U.S. House of Representatives for a vote. (Reuters)

General images

The following are images from various energy-related articles on Wikipedia.

Quotations

WikiProjects

WikiProjects connected with energy:

  • WikiProject Energy
  • Oil megaprojects task force


Other WikiProjects that may be of interest:

  • WikiProject Environment
  • WikiProject Technology
  • WikiProject Biography

Major topics

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