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UZBEK ACADEMY OF SCIENCES
RENEWABLE ENERGY:
PROBLEMS AND PROSPECTIVE IN UZBEKISTAN
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Ilkham G.Atabaev,
Dr of science in physics and mathematics, deputy-director of
Physical-technical institute of Uzbek Science Academy.
Mavlanova 2 b str., 700084 Tashkent, Uzbekistan
E-mail: lutp@uzsci.net , atvi@uzsci.net
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CHINA – UZBEKISTAN - 2004
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INTRODUCTION
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1.It is well known that the increasing of CO2 in atmosphere leads
to global ecological problem.
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2. According to evaluations of the World Energy Agency to year
2050 the share of Renewable Energy (RE) should reach ~ 40 %
of the total energy balance. In this case only the concentration of
CO2 will stabilized in year 2050 and then it can slowly decrease.
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3. During coming 15 years
new ecological clean technologies should be created and
implemented,
financial and law barriers in this field should be removed,
RE market should be created.
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TECHNICAL POTENTIAL OF UZBEKISTAN IN RE
Type of renewable energy
Potential in equivalent million tons
Uzbekistan
Total
potential
World
Total
potential
Solar energy
76459.5
Technical
potential**
265.1
Wind energy
3.33
0.64
2*106
Hydraulic energy
3.43
0.39
7*106
Energy of biomass
13.8
2.92
0.1*106
76480.0
269.05
140.1*106
Total
131*106
Technical potential** is the amount of energy which can be produced by
renewable installations today.
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ADVANCED COUNTRIES. The share of use of
renewable energy sources in the advanced
countries is 5-7 % from total amount.
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UZBEKISTAN. Technical potential of renewable
energy in 4 times exceeds annual requirement of
Uzbekistan for power resources (65-70 equivalent
million ton /year).
COMPONENTS OF RENEWABLE ENERGY OF UZBEKISTAN
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Technical potential of wind in Uzbekistan is 5 mln.t. (10 % of
today’s power resources).
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Technical potential of irrigation system of Uzbekistan is 12.5
% of today’s power resources.
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Technical potential of small rivers of Uzbekistan is 3 % of
today’s power resources.
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The technical potential of photovoltaics and water heating
systems of Uzbekistan is practically unlimited.
PROBLEMS OF IMPLEMENTATION OF RE INSTALLATIONS
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1.The very low intensity of solar energy:
the flow of solar energy is around 1100 W / m2. At 10 % efficiency of photocells,
from 1 square meter we can get 110 Watt.
Ordinary motor or engine ( 50 kW ) have a size of 1п‚ґ0.5п‚ґ0.5 meter3. Solar array
with the same power should be have a size of 500 meter2. Or 50п‚ґ10 meter2.
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2.Usually the electricity produced by solar array has the
price of 2-10 times more than for traditional technology.
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3. RE Installations are very expensive
implementation needs large financial potential.
and
the
The price of RE Installations per 1 kW is 2-5 times more than for traditional
technology.
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3. According to evaluation of Switzerland scientists in
years 2020-2030 all developing countries will not be
capable to solve RE problems without the financial
support of advanced countries.
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ALTERNATIVE TECHNOLOGY FOR
RENEWABLE ENERGY
Nuclear energy. France – 70 % of electricity produced by
nuclear power stations.
PRIMARY DIRECTIONS OF THE NATIONAL PROGRAM OF UZBEKISTAN IN THE
FIELD OF SOLAR ENERGY
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1. Investigations and developing of new progressive technologies on
transformation of solar energy.
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2. Wide industrial production of water heating solar systems.
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3. Production of technical silicon, photoelectric cells and solar arrays
for photoenergetics.
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4. Production of functional and constructive ceramics on the basis of
domestic raw materials and materials synthesized on the Big Solar
Furnace.
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5. Professional training of experts on development and production of
RE Installations.
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6. Pilot demonstration projects.
WHAT IS NECESSARY TO IMPLEMENTATION OF RE
INSTALLATIONS IN UZBEKISTAN
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1.
Scientists and engineers in RE related area and real
experience on the field of RE.
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2.
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3.
Privileges (to producers, importers and consumers) for
RE activity.
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4.
Opportunity to import of REI and ecological clean
technologies from abroad.
The domestic technical potential to produce own REI.
Hybrid wind and photovoltaic system near Charvak city (Uzbekistan)
Water heating system produced by �Geliokurilishservis’.
Systems of solar hot water supply on the roofs of buildings in Tashkent.
The field of solar collectors for combined system for hot water supply
produced in Tashkent in the framework of TACIS.
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Stirling engine ( 1 kW )
combined with mirror
concentrator (diameter 5 m)
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Stirling engine developed by
Physical Technical Institute.
Power : 3 kW (electricity) and
18 kW (hot water).
Portable solar source developed by Uzbek scientists.
Silicon solar cells produced by diffusion technology.
Portable solar sources and illumination systems for
consumers remoted from central electricity net.
Scientists of �Photocells’ laboratory.
Big Solar Furnace on the mountain in Parkent city (Tashkent
region, Uzbekistan).
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Very impressive
object, one of the
largest in the
world.
Power : 106 Watt
Diameter of spot :
0.5 m.
Temperature: up to
3000 C.
Big Solar Furnace has on opposite side 62 geliostats.
Ceramic goods produced on the base of materials synthesized
on Big Solar Furnace.
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CONCLUSION
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UZBEKISTAN HAS ALL CAPABILITIES
TO GET POSITIVE RESULTS IN USE OF RE:
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1. Scientists and engineers in RE related area
with real experience on the field of RE.
2. The domestic technical potential to produce
own REI.
3.
RE activity in Uzbekistan have some
privileges in taxes and free from custom
payments.
MAIN FIELDS OF COLLABORATION
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1.Investigations and development of new progressive
technologies on transformation of solar energy.
2. Development and implementation of water heating
solar systems.
3.Development and investigations of photocells, solar
arrays etc.
4.Investigation and production of functional and
constructive ceramics on the basis of domestic raw
materials and materials synthesized on the Big Solar
Furnace.
5.Proffesional training of experts on development and
production of RE Installations.
Some proposals in the field of RE.
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1.
Development of photovoltaic installations for the
consumers removed from a central electrical network and their
test in climate conditions of Central Asia.
Types of installations: PV sources of electricity (20-500 Watt), emergency systems
of illumination, device for charge of accumulators, water pumps and etc. (�PhysicsSun’ Scientific Association, Tashkent, e-mail: lutp@uzsci.net)
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2.Development of process engineering and equipment for
production of electrical and thermal energy on the hightemperature solar installations. (�Physics-Sun’ Scientific
Association, Tashkent, e-mail: lutp@uzsci.net)
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3.Development of 5 kW solar/fuel hybrid Stirling engine for
the co-production of electricity and heat. (�Physics-Sun’
Scientific Association, Tashkent, e-mail: lutp@uzsci.net)
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4. The solar - fuel electrical station with parabolic
cylindrical concentrators and capacity 130 MW as
additional source to water pump station "Kizil-tepa".
(Institute of Power Engineering and Automatics,
Tashkent, e-mail: zakhidov@uzsci.net)
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5. Investigation of radiation stability and defect
formation in solar cells and arrays. (Institute of
Nuclear
Physics,
Tashkent,
e-mail:
yuldashev@uzsci.net).
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