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Cadastre of Water and Power Potential in Georgia

#G-1002


The Investigation of Non-Traditional Water and Power Potential of Georgia and Creation of its Cadastre

Tech Area / Field

  • NNE-EPP/Electric Power Production/Non-Nuclear Energy
  • ENV-WPC/Water Pollution and Control/Environment

Status
8 Project completed

Registration date
25.03.2003

Completion date
20.10.2006

Senior Project Manager
Tyurin I A

Leading Institute
Georgian Research Institute of Power Engineering and Power Structures, Georgia, Tbilisi

Collaborators

  • University of Colorado at Denver / Department of Mathematics, USA, CO, Denver

Project summary

Until 1992 energy yield of Georgian electric power plants amounted to 14 billion KWh annually, whereas the figure for waterpower plants constituted 8 billion KWh and for thermal power plants - 6 billion KWh.

Since 1992 the total annual output of all electric power plants has been found to reach 6-8 billion KWh at most, with less than half of it produced at thermal power plants. Thermal power plants operate generally on expensive imported fuel, with a consequent appreciable increase in average cost price of power output in the country. At the same time, on account of the political situation obtaining, there have been interruptions in fuel importation, seriously affecting the country's energy safety. At present there is a major depression prevailing in Georgian power industry.

Water resources and associated water-power resources, with technical potential approximately valued at an annual 80 billion KWh, are high on the list of natural resources of Georgia. Only 10-12% of this potential has been so far utilized. It is evident that under these circumstances the strategy of overcoming the country's energy crisis should chiefly be oriented toward the best, intelligent and prompt utilization of locally available waterpower resources, which is duly fixed in the conception of power sector of Georgian economy. According to the said conception, energy yield of waterpower plants should be no less than 60% of total output of all electric power plants at every stage of energy deficit liquidation.

The above-mentioned conception involves the utilization of non-traditional waterpower resources along with the traditional hydropower generation. According to the classification adopted in Georgia, the non-traditional waterpower facility (NWPF) is a derivation one operating in run-off-river regime, its power never exceeding 10 MW.

A successful implementation of the program outlined is largely assured by reliable and comprehensive information available on the rivers' technical water and power potential, which provides a basis for the determination of actual possibilities for the country's water-power resources' utilization.

A river's technical water and power potential constitutes a part of its theoretical potential, capable of being utilized in practice to generate electric power. Part of total technical water and power potential with power less than 10 MW constitutes the non-traditional potential.

The methods worked out by Georgian scientists to determine total theoretical and technical water and power potential of stream flows, as well as the results of calculations related to the evaluation of the energy potential of the principal rivers of Georgia have been regularly published in national technical publishing houses of the USSR until 1987. In 1992-1994 the methods developed earlier, have been modified by the employees of Georgian Research Institute of Power Engineering and Power Structures (Those primarily involved in project implementation). The said methods have made it possible to determine technical water and power potential independently for rivers with different theoretical power. Those methods have also enabled the sanitary release from head unit of persion works to be taken into account with a view to ensuring ecological balance in river beds.

Since 1995 the financing of the research for the investigation of Georgian rivers' technical water and power potential has been stopped due to grave economic situation obtaining in Georgian power industry, and for lack of further information, the technical water and power potential of the rivers with power less than 30 MW (small rivers), as estimated at Georgian Research Institute of Power Engineering and Power Structures (Energy Institute), has been taken as non-traditional technical water and power potential of Georgian rivers (NTWPP).

However, small rivers are not the only ones with NTWPP. Certain stretches of both large and medium-sized rivers (bearing in mind their water and power potential) could be used for the construction of non-traditional water-power facilities only (NWPF), or vice versa, some stretches of small rivers should be employed for the erection of units with power exceeding 10 MW. A failure to take the aforementioned factors into consideration will lead to providing false information about the magnitude of the country's NTWPP, eliminating the possibility of its efficient utilization. At the same time, the utilization of non-traditional technical water and power potential with a view to meeting the crisis prevailing in power industry, will provide the prerequisites for the beginning of its liquidation in a short order as well as for the economy in the organic fuel imported. Relatively small and quicker-yielding investments in the construction of NWPF as compared to traditional hydropower industry will reduce the risk factor for the loss of large sums and create favourable conditions for the attraction of foreign investments, which is of paramount importance for such a poor country as is Georgia.

The ultimate objective of the present project is to handle the problem of providing an accurate evaluation of the magnitude of Georgian NTWPP and to draw up a cadastre of its geographic (by administrative districts) as well as monthly distribution. This will assist in establishing a reliable database for the development and implementation of NWPF projects in the territory of Georgia.

In the course of project implementation a new technique for obtaining comprehensive information on NTWPP is to be devised; The practical application of the said technique will involve the determination of hydrological and orographical characteristics as well as the calculation of the numerical values of the parameters on the basis of statistical analysis. The aforementioned parameters are used for the determination of the volume of river runoff from the head unit of persion works by average water discharge in the river section under consideration with a view to ensuring ecological balance in river beds. Some recommendations and mathematical models will be put forward for drawing up energy schemes using the combined plots of discharge and river length-versus river bed longitudinal profile relationships. The project contemplates working out the NTWPP cadastre of Georgian rivers.

The findings of scientific investigations will be used extensively in solving similar problems in the "near as well as far abroad", while the results intended for practical applications will be made wide use of by experts in the field of hydropower engineering.

The principal participants of the project dealing with armament research will be able to apply their knowledge and capabilities to solving peaceful problems associated with the identification and utilization of ecologically clear sources of electric energy thus contributing to the solution of the problem of global warming up of earth climate.

The present project will enable its participants to strengthen the relations they have with foreign collaborators, establishing at the same time new relations.

The experience gained in obtaining reliable and comprehensive information on non-traditional technical water and power potential of rivers as well as in cadastre compilation will make it possible for project participants to offer their services in solving similar problems to the countries of both "near and far abroad" on a commercial basis.

The collaborators will be supplied with all results obtained, both partial and final. The collaborators' recommendations will be taken into consideration in the course of project implementation, which will undoubtedly improve the quality of the work performed.

The collaborators' comments and evaluations are to be submitted regularly to the ISTC.

The collaborators will be supplied with research results to be used in their own scientific investigations.

The methods of mathematical statistics as well as the theory of errors and advanced methods of applied mathematics will be employed at different stages of project implementation.

Orographic studies will involve the usage of large-scale maps.


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The International Science and Technology Center (ISTC) is an intergovernmental organization connecting scientists from Kazakhstan, Armenia, Tajikistan, Kyrgyzstan, and Georgia with their peers and research organizations in the EU, Japan, Republic of Korea, Norway and the United States.

 

ISTC facilitates international science projects and assists the global scientific and business community to source and engage with CIS and Georgian institutes that develop or possess an excellence of scientific know-how.

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