Biofuel is currently supplying almost 10% of the world’s primary energy, and its production is forecasted to increase by 25% over the next 5 years!

With this tremendous growth, biofuel has the potential to replace fossil fuels. However, similar to fossil fuels, biofuel is a double-edged sword when it comes to environmental and social problems.

So, will biofuels overcome these environmental and social challenges, or will it become fossil fuels 2.0? Check out our latest episode on Bioenergy to find out!

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Learn how biomass creates power from waste in this engaging video by the National Renewable Energy Laboratory (NREL). This video is part of a nine-part series teaching about the basics of renewable energy. For a text version of this video, visit https://www.nrel.gov/news/video/biomass-energy-basics-text.html. For more educational content, visit https://www.nrel.gov/research/learning.html.

Press Conference at the 2012 General Assembly of the European Geosciences Union. (Credit: EGU/CNTV.at)

The European Geosciences Union (EGU, http://www.egu.eu/) is Europe’s premier geosciences union, dedicated to the pursuit of excellence in the Earth, planetary, and space sciences for the benefit of humanity, worldwide. It is a non-profit interdisciplinary learned association of scientists founded in 2002. The EGU has a current portfolio of 14 diverse scientific journals, which use an innovative open-access format, and organises a number of topical meetings, and education and outreach activities. Its annual General Assembly is the largest and most prominent European geosciences event, attracting over 10,000 scientists from all over the world. The meeting’s sessions cover a wide range of topics, including volcanology, planetary exploration, the Earth’s internal structure and atmosphere, climate change, and renewable energies.
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#eldddir #eldddir_space #eldddir_earth #eldddir_homo #eldddir_ocean #eldddir_bombs #eldddir_future #eldddir_tech

What’s Hidden Under the Type 6 Civilization? – https://www.youtube.com/watch?v=WfucS1Hr8gs

Free Energy Water Pump – DIY
#waterpump #waterwheel #freeenergy

Sanford School of Policy professor Billy Pizer outlines the challenges of designing policies that rein in the environmental impacts of energy use.

While it’s true that Earth’s temperatures and carbon dioxide levels have always fluctuated, the reality is that humans’ greenhouse emissions since the industrial revolution have put us in uncharted territory.

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Written by Dr Benjamin Henley and Assoc Prof Nerilie Abrams.
Animated and edited by Wes Mountain for The Conversation.
Music: Kevin Macleod – Faster Does It
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As early as the 7th century BC, humans have used solar technology. Take the full course, test yourself, and earn a certificate on edX: https://www.edx.org/course/solar-energy?utm_source=youtube&utm_medium=social&utm_campaign=partnership&utm_content=solar-energy
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Wind power is one of the fastest-growing renewable energy technologies. Usage is on the rise worldwide, in part because costs are falling. Global installed wind-generation capacity onshore and offshore has increased by a factor of almost 75 in the past two decades, jumping from 7.5 gigawatts (GW) in 1997 to some 564 GW by 2018, according to IRENA’s latest data. Production of wind electricity doubled between 2009 and 2013, and in 2016 wind energy accounted for 16% of the electricity generated by renewables. Many parts of the world have strong wind speeds, but the best locations for generating wind power are sometimes remote ones. Offshore wind power offers tremendous potential.

Wind turbines first emerged more than a century ago. Following the invention of the electric generator in the 1830s, engineers started attempting to harness wind energy to produce electricity. Wind power generation took place in the United Kingdom and the United States in 1887 and 1888, but modern wind power is considered to have been first developed in Denmark, where horizontal-axis wind turbines were built in 1891 and a 22.8-metre wind turbine began operation in 1897.

Wind is used to produce electricity using the kinetic energy created by air in motion. This is transformed into electrical energy using wind turbines or wind energy conversion systems. Wind first hits a turbine’s blades, causing them to rotate and turn the turbine connected to them. That changes the kinetic energy to rotational energy, by moving a shaft which is connected to a generator, and thereby producing electrical energy through electromagnetism.

The amount of power that can be harvested from wind depends on the size of the turbine and the length of its blades. The output is proportional to the dimensions of the rotor and to the cube of the wind speed. Theoretically, when wind speed doubles, wind power potential increases by a factor of eight.

Wind-turbine capacity has increased over time. In 1985, typical turbines had a rated capacity of 0.05 megawatts (MW) and a rotor diameter of 15 metres. Today’s new wind power projects have turbine capacities of about 2 MW onshore and 3–5 MW offshore.

Commercially available wind turbines have reached 8 MW capacity, with rotor diameters of up to 164 metres. The average capacity of wind turbines increased from 1.6 MW in 2009 to 2 MW in 2014.

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