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Experience of creation and exploitation of HSWS completely confirmed the high efficiency of combined use of solar and wind energies in the conditions of Uzbekistan.

Principles of combined use of renewable energies, results of HSWS exploitation were discussed at International Workshop “Hybrid-2002” organized by NATO grant EST-ARW-977881 (May 22–24, 2002, Tashkent). Workshop participants highly appreciated the results of made elaborations and investigations and recommended HSWS for wide scale implementation.

It is necessary to organize an investigations of diverse types of PV-cells and modules in real meteoconditions similar to Charvak sites ones, that allows estimating their quality and stability and to recommend them for application in Central Asia region.

Authors note with the pleasure that this report is a result of generalized researches made in the frame of European Commission grant ICOP-DEMO-4068-98.

Adsorptive bubble separation process is a very effective technology for solid-liquid separation that has been in use outside the environmental engineering field for more than 60 years. Originally applied in the field of mining engineering, the process now provides the means for separation and/or concentration of 95% of the world’s base metals and other mineral compounds(1,2). Recently,the adsorptive bubble separation process has become increasingly important in such diverse applications as (a)the separation of algae,seeds,or bacteria from biological reactors,(b)removal of ink from re-pulped.

In our study the highly ordered porous alumina structures with pore size of 10 until 150 nm were fabricated. The diameter of the nanowires can be controlled by the pore diameters of the template. An advantage of proposed technology is that porous aluminum oxide layer is kept on Al substrate and becomes more suitable for the fabrication of photoelectrical nano-devices. Porous anodic alumina serves as a nice template for nanowires fabrication and investigation of their physical properties.

Developed approach gives opportunity to deposit a number of other materials: metals, their oxides, sulfides, chalcogenides, and hydroxides, into porous alumina matrix. The suggested procedure of nanostructure fabrication is relatively cheap, efficient, well-controlled, and easy for realization.

Hydropower is by far the largest source of renewable electricity available today; it produces about 17 % of global electricity. This is more than 20 times the amount produced by other renewable technologies. The future development of hydropower will require its acceptance by governments and the public, and this in turn will mean that social and environmental effects will need to be carefully managed.

Hydropower is very site specific; each project is different from most others and is situated in a particular landscape, climate, ecosystem and human settlement area. This means that few general statements can be made about hydropower, either good or bad, and each project has to be judged on its own merits.

With good planning, good operation, and good mitigation measures, hydropower can remain the principal source of renewable electricity for many decades to come. It can make a valuable contribution to our societies and to the environment.

Hydropower is by far the largest source of renewable electricity available today; it produces about 17 % of global electricity. This is more than 20 times the amount produced by other renewable technologies. The future development of hydropower will require its acceptance by governments and the public, and this in turn will mean that social and environmental effects will need to be carefully managed.

Hydropower is very site specific; each project is different from most others and is situated in a particular landscape, climate, ecosystem and human settlement area. This means that few general statements can be made about hydropower, either good or bad, and each project has to be judged on its own merits.

With good planning, good operation, and good mitigation measures, hydropower can remain the principal source of renewable electricity for many decades to come. It can make a valuable contribution to our societies and to the environment.