There is a lot of ECO gadgets around these days. One of them is this little solar power generator.
This device generates both: solar and wind energy, as it uses a collection of six photovoltaic panels, crafted as a vertical turbine. While the panels generate solar power, the moving blades generate wind energy.
One never know how [...]

Wind turbines designed to be installed on rooftops are generating a lot interest lately. These compact turbines can be located on top of buildings, or attached to other parts of large structures like bridges. In turns out, though, that installing wind turbine in a city environment is a bit of an art.

The other challenge is [...]

This wind turbine is silent and high efficient. It’s callet Energy Ball.
The Energy Ball uses the Venturi effect, a measurement of pressure created by forcing incompressible liquid through a restricted section of pipe. The Energy Ball channels air through six blades, accelerating the speed of the air as it blows around the rotor hub, creating [...]

The normal propeller wind turbines are sometimes quite dangerous to birds because of the huge sweep area of the blades and when there is wind, the propellers move fast which birds sometimes cannot see.
Vertical axis wind turbine, like this one in the video, are cool. This vertical wind turbine from mariah power has 1.2Kw of [...]

I came to this article about the Sunflower’s Fresnel lens . Those lens concentrates sunlight more than 1,000 times, enabling cheaper electricity than traditional photovoltaics. The system is self-powered.
Technical specifications:

200-watt system
features trackers that shift with the sun’s location, as well as a controller and communications system.
The low-slung Sunflower is built to withstand winds, and it [...]

The German minister for the environment Sigmar Gabriel now no longer plans to increase the share of bio energy in the fuel market to 17% by 2020 as originally planned but only to 12%. In return, the share of wind energy in the electricity supply is to be increased from the up to present planned [...]

It’s amazing. Combining two renewable energies to produce electricity, those street lamps are producing electricity by charging batteries using solar cells and wind turbine…

In Great Britain, The targets are several: a 20% jump in energy efficiency, 10% of vehicle traffic powered by biofuels, and 15% of energy derived from renewable sources.
Britain only derives 2% of its energy from renewables rithg now, and so must build six and a half times what it has now - all within the [...]

Europe is still the leader for wind energy with over 57 GW of wind energy at the end of 2007, representing 61% of the global total. In Japan there are the wind farms such as the Nunobiki Plateau on a hill north of Tokyo, which generates enough electricity to power some 35,000 homes a year [...]