Energy using the power of tides in Brazil

Just today I came across a wave energy video today. This system is developed in Brazil. The technology is pretty simple but very effective. There is great amount of energy in ocean tides generating vertical displacement of water , the bouys attached to the arms would create a motion that would get the attached pump in action pumping water a high speed , this high speed water moves a turbine and  thus electricity is generated. 

Countries having long coastlines have a great advantage if this technology is used. Many gigawatts of electricity can be generated. 

Here is the video, its in Brazilian Portuguese , but it has English subtitles. The technology is pretty simple. Once installed, except for maintenance of the system , there is no other cost involved at all. It will provide green electricity of decades.

Earlier in this blog I have mentioned about the Davidson - Venturi Hill turbine and Searaser. These two systems also generate electricity harnessing the waves in the sea.

The waves of sea are caused due to the gravitational effects of Sun and Moon. 

 If administrators around the world have a good vision for the future of humanity they will adopt green technologies like this very soon.

Makani Airborne Wind Turbine - Kite powered Electricity

High altitude winds has enough energy to power the world many times over. In this blog in the past I have mentioned about Alteros BAT and Kite Powered Electricity. Two years ago Google acquired a company called Makani Power .

The company is a green energy company that has built high altitude energy kites that can tap into the energy provided by high altitude winds to generate electricity. The advantage of using a kite to generate electricity is that one saves on cost of transportation of equipments required for setting up a wind energy tower and also the cost of setting up a wind tower with wind turbine is very high. 

While a wind tower can go up to the  the height of 120 metres. The Makani wind energy kites with a strong flexible teether can achieve a height of 80 to 350 meters. It is way cheaper than a wind turbine as no tower has to be built. Since these kites are aerodynamic they can access stronger winds and that is why every individual kite can generate 50% more energy. 

A single kite can produce upto 600 kW of energy at a wind speed of 11.5 m/sec. The system begins to generate power at a wind speed 4 m/s. At a height of 250 meteres such wind speeds are achieved very easily. 

More information about the revolutionary technology  can be obtained from this site http://www.google.com/makani .

The following video shows how the system works