Before the featured portal process ceased in 2017, this had been designated as a featured portal.

Portal:Renewable energy

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Wind energy
Renewable Energy Portal
Geothermal energyBiofuels
Main page   Explore topics & categories   Tasks & announcements  


Introduction

Wind, solar, and hydroelectricity are three emerging renewable sources of energy.

Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat. Renewable energy often provides energy in four important areas: electricity generation, air and water heating/cooling, transportation, and rural (off-grid) energy services.

Based on REN21's 2017 report, renewables contributed 19.3% to humans' global energy consumption and 24.5% to their generation of electricity in 2015 and 2016, respectively. This energy consumption is divided as 8.9% coming from traditional biomass, 4.2% as heat energy (modern biomass, geothermal and solar heat), 3.9% hydro electricity and 2.2% is electricity from wind, solar, geothermal, and biomass. Worldwide investments in renewable technologies amounted to more than US$286 billion in 2015, with countries like China and the United States heavily investing in wind, hydro, solar and biofuels. Globally, there are an estimated 7.7 million jobs associated with the renewable energy industries, with solar photovoltaics being the largest renewable employer. As of 2015 worldwide, more than half of all new electricity capacity installed was renewable.

Selected article

Tidal mill at Olhão, Portugal

A tide mill is a specialist type of water mill driven by tidal rise and fall. A dam with a sluice is created across a suitable tidal inlet, or a section of river estuary is made into a reservoir. As the tide comes in, it enters the mill pond through a one way gate, and this gate closes automatically when the tide begins to fall. When the tide is low enough, the stored water can be released to turn a water wheel.

Tide mills are usually situated in river estuaries, away from the effects of waves but close enough to the sea to have a reasonable tidal range. These mills have existed since the Middle Ages, and some may go back to the Roman period.

A modern version of a tide mill is the electricity generating tidal barrage.

Read More...

Selected picture

Earth horizon and International Space Station solar panel array (Expedition 17 crew, August 2008).jpg
International Space Station solar panel array with the horizon of the Earth in the background

Selected biography

John I. Yellott 1986 photo.jpg

John I. Yellott (1908 – 1986) was a scientist internationally recognized as a pioneer in passive solar energy, and an inventor with many patents to his credit. In his honor the American Society of Mechanical Engineers (“ASME”) Solar Division confers a biannual "John I. Yellott Award" which "recognizes ASME members who have demonstrated sustained leadership within the Solar Energy Division, have a reputation for performing high-quality solar energy research and have made significant contributions to solar engineering through education, state or federal government service or in the private sector."

Read More...

Did you know?

... that Selling Solar: The Diffusion of Renewable Energy in Emerging Markets, a 2009 Earthscan book by Damian Miller, argues that in order to solve the climate crisis, the world must immediately and dramatically accelerate the commercialization of renewable energy technology ? This needs to happen in the industrialized world, as well as in the emerging markets of the developing world where most future GHG emissions will occur.

WikiProjects

News

  • May 19, 2016: Final turbine of the 582MW German offshore Gode Wind Farm installed. (ReCharge)
  • May 18, 2016: Renewable energy in Portugal supplies 100% of demand over four days in a row. (The Guardian)
  • April 29, 2016: The Australian Capital Territory lifts its renewable energy target to 100% by 2020. (The Canberra Times)
  • March 15, 2016: Bokpoort concentrated solar power inaugurated in South Africa. (ESI Africa)
  • March 5, 2016: The 132MW Cadiz Solar Power Plant in the Philippines, the largest in Southeast Asia opens. (Deal Street Asia)
  • February 5, 2016: Morocco completes the Noor 1 solar plant, the first stage of a 500MW project (The Japan Times)
  • December 17, 2015: The 113MW Tafila Wind Farm in Jordan is inaugurated. (PR Newswire)
  • December 2, 2015: The 300MW Cestas solar plant, the largest photovoltaic power station in Europe, is inaugurated near Bordeaux. (RenewEconomy)
  • December 1, 2015: The 200MW Gulf of El-Zayt wind farm - the largest in Africa- is inaugurated in Egypt. (African Review)
  • November 26, 2015: Mauritania's first wind farm inaugurated. (North Africa Post)

Quotations

  •  "First, once the renewable infrastructure is built, the fuel is free forever. Unlike carbon-based fuels, the wind and the sun and the earth itself provide fuel that is free, in amounts that are effectively limitless."
"Second, while fossil fuel technologies are more mature, renewable energy technologies are being rapidly improved. So innovation and ingenuity give us the ability to constantly increase the efficiency of renewable energy and continually reduce its cost."
"Third, once the world makes a clear commitment to shifting toward renewable energy, the volume of production will itself sharply reduce the cost of each windmill and each solar panel, while adding yet more incentives for additional research and development to further speed up the innovation process."

Al Gore, Our Choice, 2009, p. 58.

Related portals


Associated Wikimedia

The following Wikimedia Foundation sister projects provide more on this subject:

Wikibooks
Books

Commons
Media

Wikinews 
News

Wikiquote 
Quotations

Wikisource 
Texts

Wikiversity
Learning resources

Wiktionary 
Definitions

Wikidata 
Database

Wikispecies 
Species

Retrieved from "https://en.wikipedia.org/w/index.php?title=Portal:Renewable_energy&oldid=850516425"
This content was retrieved from Wikipedia : http://en.wikipedia.org/wiki/Portal:Renewable_energy
This page is based on the copyrighted Wikipedia article "Portal:Renewable energy"; it is used under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC-BY-SA). You may redistribute it, verbatim or modified, providing that you comply with the terms of the CC-BY-SA