Installing Rooftop Solar Is Unfair, Says Energy Group
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- Category: Power
- Published on Thursday, 23 May 2013 07:05
The Energy Supply Association of Australia, or ESAA, is a group whose membership appears to include just about every company that is involved in the generation or distribution of electricity in Australia. They have just released a very interesting discussion paper called, “Who pays for solar energy?” I think it’s very nice of them to put out a report like this and try to educate people,
Solar PV - Overview
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- Category: Power
- Published on Wednesday, 22 May 2013 12:00
Quite simply, PV (or photovoltaic) panels use daylight and convert it into electricity. Panels are made up of a number of "cells" made of a semi-conducting material, usually silicon. When photons from sunlight hit the cell, it displaces electrons, causing an electrical potential difference, and this in turn causes current to flow.
World's tallest dam approved by Chinese environmental officials
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- Category: Construction
- Published on Wednesday, 22 May 2013 07:16
Chinese environmental authorities have approved construction plans for what could become the world's tallest dam, while acknowledging that the project would affect endangered plants and rare fish species.
The 314 metre-high dam (1,030ft) will serve the Shuangjiangkou hydropower project along the Dadu rive
Will Electric Bicycles Get Americans to Start Pedaling?
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- Category: Power
- Published on Monday, 20 May 2013 10:29
Electric bicycles are already popular in Europe and in China, which has more e-bikes than cars on its roads. Now, manufacturers are marketing e-bikes in the U.S., promoting them as a "green" alternative to driving.
Most Americans know about Tesla, the Chevy Volt, and the Nissan Leaf. But what about Evelo, the eZip Trailz, and the Faraday Porteur?
Japanese Firm To Build Space Elevator By 2050
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- Category: Transport
- Published on Wednesday, 29 February 2012 10:27
Obayashi unveiled a project, which envisions a huge elevator that will be moved by cables to a terminal station located at an altitude of 36,000 km or 22,370 miles. The company says it would use carbon nanotubes to manufacture the cables and stabilize them in air and space using a massive counterweight at 96,000 kilometers (59,650 miles) above the surface of earth.
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