Portal:Renewable energy

From Infogalactic: the planetary knowledge core
Jump to: navigation, search
Wind energy
Renewable Energy Portal
Geothermal energyBiofuels

Template:/TabBar

Template:/box-header

Burbo Bank Offshore Wind Farm, at the entrance to the River Mersey in North West England.

Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale such as sunlight, wind, rain, tides, waves and geothermal heat. Renewable energy replaces conventional fuels in four distinct areas: electricity generation, hot water/space heating, motor fuels, and rural (off-grid) energy services.

Based on REN21's 2014 report, renewables contributed 19 percent to our energy consumption and 22 percent to our electricity generation in 2012 and 2013, respectively. Both, modern renewables, such as hydro, wind, solar and biofuels, as well as traditional biomass, contributed in about equal parts to the global energy supply. Worldwide investments in renewable technologies amounted to more than US$ 214 billion in 2013, with countries like China and the United States heavily investing in wind, hydro, solar and biofuels.

Renewable energy resources exist over wide geographical areas, in contrast to other energy sources, which are concentrated in a limited number of countries. Rapid deployment of renewable energy and energy efficiency is resulting in significant energy security, climate change mitigation, and economic benefits. In international public opinion surveys there is strong support for promoting renewable sources such as solar power and wind power. At the national level, at least 30 nations around the world already have renewable energy contributing more than 20 percent of energy supply. National renewable energy markets are projected to continue to grow strongly in the coming decade and beyond.

While many renewable energy projects are large-scale, renewable technologies are also suited to rural and remote areas and developing countries, where energy is often crucial in human development. United Nations' Secretary-General Ban Ki-moon has said that renewable energy has the ability to lift the poorest nations to new levels of prosperity.

edit  watch  

Selected article

The world's largest solar energy dish is located at the Ben-Gurion National Solar Energy Center

Solar power in Israel and the Israeli solar energy industry has a history that dates to the founding of the country. In the 1950s, Levi Yissar developed a solar water heater to help assuage an energy shortage in the new country. By 1967 around one in twenty households heated its water with the sun and 50,000 solar heaters had been sold. With the 1970s oil crisis, Harry Zvi Tabor, the father of Israel's solar industry, developed the prototype of the solar water heater now used in over 90% of Israeli homes. Israeli engineers are at the cutting edge of solar energy technology and its solar companies work on projects around the world.

Israeli innovation and research has advanced solar technology to a degree that it is almost cost-competitive with fossil fuels. Its abundant sun made the country a natural location for the promising technology. The high annual incident solar irradiance in the Negev Desert has spurred an internationally renowned solar research and development industry, with Harry Tabor and David Faiman of the National Solar Energy Center two of its more prominent members. At the end of 2008 a feed-in tariff scheme was approved, which immediately put in motion the building of many residential and commercial solar energy power station projects.

Read more...

edit  watch  

Selected picture

View of Brazos Wind Farm in Texas
The Brazos Wind Farm in Texas. At the end of 2009 wind power accounted for about 2% of the electricity generated in the United States
edit  watch  

Selected biography

Hans-Josef Fell (born 7 January 1952 in Hammelburg) is a member of the Green Party in the German Parliament. Fell framed the German Renewable Energy legislation, together with Hermann Scheer. He currently serves as spokesman on energy for the Alliance 90/The Greens parliamentary group.

Fell has travelled to many countries to discuss clean energy. Following his visit to Turkey, plans for a nuclear power plant at Akkuyu were stopped, and Prime Minister Bülent Ecevit declared that his government would foster renewable technologies. In Taiwan, following Fell's television appearances and talks with individual policy makers, the government announced the withdrawal of its plans to build the country's fourth nuclear power plant, and its intent to phase out nuclear power by 2020. The French government has also shown great interest in drafting a renewable energy law similar to the one in Germany.

Read More...

edit  watch  

Did you know?

... that because solar cookers use no fuel and they cost nothing to run, humanitarian organizations are promoting their use worldwide to help slow deforestation and desertification, caused by using wood as fuel for cooking ? Solar Cookers are a form of outdoor cooking and are often used in situations where minimal fuel consumption is important, or the danger of accidental fires is high.

Template:/box-header WikiProjects connected with renewable energy:

Template:/box-footer

Template:/box-header

Template:/box-footer

edit  watch  

Quotations

  • "Today’s green buildings use some 30% less energy than their comparably sized nongreen counterparts (some save much more), and they’re generally brighter, healthier, and more aesthetically pleasing. Often built with little or no additional up-front cost, green offices, for instance, pay back not only in energy savings but also in greater employee retention, attendance, and productivity." – Ron Pernick and Clint Wilder. The Clean Tech Revolution, 2007, p. 21.

Template:/box-header

Sustainable development.svg
Fairytale konqueror.png
Darwin Airport Water Tower.jpg
Sustainable development Ecology Infrastructure
Crystal energy.svg
Nuvola apps kcmsystem.svg
Speed1c.png
Energy Technology Engineering

Template:/box-footer


Template:/box-header

The following Wikimedia sister projects provide more on this subject:
Wikibooks  Wikimedia Commons Wikinews  Wikiquote  Wikisource  Wikiversity  Wiktionary  Wikidata 
Books Media News Quotations Texts Learning resources Definitions Database

Template:/box-footer