The alternative power is the energy received from renewed, inexhaustible energy sources - a wind, the sun, a biomass, internal heat of the earth. For reception of alternative energy use special installations: vetrogeneratory, solar batteries, solar collectors, biogas reactors and other installations.

We will consider on our site such Alternative power - as vetroelektorostantsii or better to say vetrogeneratory.
The idea to use a strength of wind for reception of electric energy originates in the end of 19 centuries, almost simultaneously with the beginning of an epoch of an electricity.
The first wind turbine for electricity manufacture, has been constructed by C.F.Brashem in the USA. It was huge installation - diameter of a rotor equaled to 17 metres, and consisted of 144 blades made of a tree. Capacity vetrogeneratora at this vetroelektrostantsii made 12 watt. Installation has served to the owner more than 20 years.

Interest to alternative power has grown after a world energy crisis in the seventies. Further this interest, began to amplify, because the wind power is an independence of another's energy carriers, and ecological cleanliness.
Among set of thousand vetrogeneratorov, there are units of different capacity, from the smallest - capable to provide a country house, to huge, raschitannyh on provision of energy of considerable territories. The greatest for today the wind unit is constructed in September 2002 near Magdebourg in Germany. Its capacity - 4.5 megawatt, each of three blades made of reinforced fiber glass reaches 52 metres at length and 6 at width, and weighs on 20 tons. The rotor on a 120-metre tower fastens.



One company under name Pythagoras Solar has developed almost transparent, but nevertheless completely solar glass on the basis of the patented optical technology. This glass can be established in a roof not only as a window, but also for electricity manufacture. Company Gonen Fink founder will tell about it in the report on symposium Intersolar 2010 in San Francisco this week.

Blocking a direct sunlight, this glass with the big thermal efficiency will allow to reduce expenses on cooling of buildings. And thanks to high factor of a transparency, much more higher in comparison with other integrated solar modules, it will allow to reduce expenses for replacement of fluorescent lamps, providing natural illumination indoors.


But the basic difference of glass consists that it makes more solar energy, than usual BIPV - 13 watt on square foot. Thus, the standard window in the sizes 20 on 10 foots will represent solar system capacity of 2,6 kw which is capable to make on the average about 500 kilowatt-hours a month, depending on surrounding conditions.

The patented "know-how" has flown down includes the special optical surface passing through a daylight, and the mirrors reflecting light from solar elements. Standard double-glazed window Pythagoras consists of two glasses, each of which represents a set from the several tiles developing the electric power by means of traditional and rather effective monocrystals of silicon from the Chinese partner of company China Sunergy.

The one-storeyed shopping centres now usually shined with ugly fluorescent panels become the basic scope, predictably. Windows in a roof, located on one on each shop of shopping centre, will give necessary quantity of natural light and will make the electric power, sufficient for a partial or full covering of requirement of shop in an electricity. In the future the company plans to let out as well the walls made on the same technology.



While many think that ideas on change of design of wind turbines have already run low, struggle for the best project of a design has renewed with new force. We represent one of possible candidates-winners in this competition - a new design of the wind turbine which is called Aerogenerator X.

This enormous installation will have improbable scope in 275 metres and is capable to make more than 10 megawatt of the electric power. It at least three times is more than capacities existing the best commercial wind turbine with a horizontal axis.

The innovative design something reminds a plane tree sunflower seed as it rotates about the axis, and at the same time she answers all technology requirements of rather as much as possible admissible length of three blades of the "horizontal" turbine. Inzhiniringovaja company ARUP, the developer of this project, has finished recently research of viability of the concept - Aerogenerator with a vertical axis of rotation.


As it is known, at the moment wind turbine with a vertical axis it is recognised if not the steadiest, at least, the most comprehensible design, from the point of view of economic and technological expediency. However, at increase in length of blades pressure from a changeable gravity sharply increases and there is a probability of their separation from the turbine. It defines a limit of capacity existing turbines.

Advantage of a new design wind generator is that circumstance that higher the weight is concentrated to a device basis, instead of on its edges. Thereby edges are not exposed to constant change of a gravity and, hence, can have the sizes much more exceeding the sizes, defined for "horizontal" turbines. Besides, the installation height considerably decreases that, in turn, reduces its visibility on horizon. Company ARUP plans to make in the near future the working model and to begin it running in 2013.




The geothermal power concerns a category of inexhaustible energy sources because water resources constantly replenish at the expense of continuous loss of deposits and heat on the earth. Geothermal energy receive from heat in the earth. People can use steam and the hot water, created in the Earth, for heating of buildings and electric power manufacture. It is interesting, what does water such hot? Geothermal energy is generated in a terrestrial kernel.

People spend geothermal energy to heat the houses and to make the electric power. It is reached by excavation of deep chinks and pumping out of hot underground water or steam release on a surface. But we can use also constant temperatures near to a surface of the Earth for heating and cooling of buildings.

Dr. Ernest Hjungs is the head of geothermal researches at institute GFZ (the German research centre of sciences about the Earth). He considers: “New methods help us to make the important decision - to carry out a choice of places for the future geothermal projects. Thus we can lower considerably risk of wrong installation of expensive derricks”.

The geothermal power has development all over the world, and Iceland is the best example of use of geothermal energy. Actually Iceland is the leader on development of geothermal power. At them annual replacing power supply surpasses an electrical supply approximately on 500 MW. And Germany becomes one of the basic users of geothermal power. It receives 100 MW heat from geothermal energy. Italy also does not lag behind. In area Traval (Italy) the command of the European scientists plans to use potential of local geothermal tanks. If this project is finished, it will develop energy which will be equal to potential about 1000 wind-driver power stations. It is one of the projects discussed at the international final conference “I-GET” (Complex geophysical investigation of technologies for deep cracks of geothermal systems) in Potsdam.

The European union also feels warmly geothermal energy. The European countries have estimated potential of geothermal power. This conference is directed on state-legal development of the modern technologies connected with possibilities of geothermal tanks. Seven European countries have taken part in conference“I-GET”.Они wish to study as much as possible geothermal tanks and to use them for pure and"green"energy. The project“I-GET”can be essential step on a way to  energy sources.

Recently developed methods have been tested on four European geothermal points. They are a combination of various geological and heat-dynamic conditions. High-temperature water basins have been checked up in Travale (Italy) on breeds and in Icelandic Hengille (volcanic breeds). Also two deposits with average temperature of deep adjournment of breeds in the Gross-shyonebek (Germany) and Skernevitsah (Poland) are studied.

Consequences of results of the project “I-GET” will be felt all over the world. Geothermal experts from Indonesia, New Zealand, Australia, Japan and the USA also took part in the project. There were present 120 scientists and representatives of the industry from 20 countries.

Reliable geothermal technologies are in demand all over the world. Even the countries having a long-term operational experience in geothermal power, such as Indonesia and New Zealand, are interested in the results got in “I-GET” - Dr. Ernest Hjungs speaks. Thus, we hope that this project will give a necessary push for geothermal researches. Today GFZ bases the International centre on Geothermal researches which will be concentrated to performance of the appendices focused on large-scale projects at national and international level.





From all kinds of renewed energy sources wave energy is represented to researchers of the is most difficult-subordinated but if it can effectively use it is possible to tell with confidence that the power will get rid, at last, of global dependence on fossil energy sources. Separated in due time from the Swedish company-manufacturer of military planes Saab design firm Minesto has developed underwater turbine Deep Green which can quite generate nearby 18 TW the electric power annually by means of use of wave energy.

The electricity developed by underwater generator Deep Green, will suffice on provision of energy of 4 million British households. This concept has been initially developed as the wind turbine, but further designers have considered that such design can be more useful if to place it under water as water is more dense than air almost in 832 times.


The underwater dragon represents adhered by a cable to a bottom a wing on which the turbine and the generator fasten. The hydrodynamic forces influencing on a snake, are defined by speed of a current and force it to move, but is not any, and on the certain trajectory similar to the eight which is set by an automatic control system. Such unique movement of a dragon allows to increase speed of water stream by the turbine in 10 times. The developed electricity is transferred to coast by means of the power cable located in a cable. As high speeds of water stream in the turbine allow to do without a reducer, and systems of fastening do not include the massive bases, necessary for towers and other heavy installations in the sea, an underwater complex, both on the size, and on a total cost, it appears rather attractive to full-scale use.

The typical underwater dragon has length of a wing of 12 metres and is intended for work on depth 60 - 120 metres and with speed of a current 1,2 - 2,2 km/s. Besides, Deep Green effectively functions even in areas with small speeds of a current and on the big depths. As have shown researches, technology Minesto can use to 40 percent of an energy potential of wave energy. According to the estimate of expenses of the company, one watt of the electric power received in this 14-ton by a snake, will cost approximately 0,06 - 0,14 euros whereas cost of an electricity of wind power stations is equal 0,10 - 0,12 euros.

By the current moment the turbine pre-production model in scale 1:10 from the real size is constructed. In 2011 the company it is planned to construct a pre-production model in the sizes 1:4 from real, for use in waters near to coast of Northern Ireland. And installation of five - ten full-size demonstration underwater dragons for generation of energy and their connection in the electric system will be following step. It is supposed that for financing of this project it is required about 40 million euro.