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At the moment the power of operating HPP Sevan-Hrazdan, Vorotan
cascades and 29 – small HPPs’ annual production of electric power on
the average formulates 1009 MW, and 1600 billion kWh. In 1998 from
all energy made in Armenia, approximately 32 % was on a share of
HPPs, 56 % - on a share of thermal and 12 % on nuclear. In immediate
prospects due to construction 45 SHPP with capacity of 107 MW
recommended by the “Scheme of development of small hydro energy of
Armenia”, as prime, the share of hydraulic power will increase up
to 45-50 %.
PROGRAM OF “GRIAR” CJ-SC ON CONSTRUCTION OF SHPP-s
(SMALL HYDRO POWER PLANTS)
IN
THE TERRITORY OF THE REPUBLIC OF ARMENIA
It
is in the strategic plans of “Griar” Company for the next few years
the construction of a network of Small Hydro Power Plants in the
territory of the Republic of Armenia.
“Commission on Regulation of public utilities of RA” at the
Government of the Republic of Armenia creates favorable legal and
economic conditions for the construction of Small HPP, specifically
by setting a fixed tariff for the next 15 years and law guarantee of
sale of 100% of electric power to “ArmNetwork” CJ-SC (Decision N20n
dated 09.02.2004 and N167n dated 08.11.2005). In the present
“Commission on Regulation of public utilities of RA” at the
Government of the Republic of Armenia set a fixed tariff at 0.045
USD without VAT. It guarantees fixed profit from the existing HPP-s
and defines the potential monetary flows of the operated stations
for the next 15 years.
Thus, the development of alternative power engineering in Armenia
has advantages as compared with other directions of industry,
especially, taking into account the experience and qualified
management.
The
construction of a cascade of SHPP on Getik and Megri rivers is
supposed, as well as of one comparatively large Hydro Power Station
on river Pambak.
Our
organization “Griar” CJ-SC has licenses for the construction of five
Small hydro power plants in the territory of RA, that is: SHPP
Getik-1, SHPP Megri, SHPP Pambak, SHPP Getik-2 and SHPP Agstev-6.
However the analysis showed that instead of construction of the last
two hydro power plants, the construction of Getik-2 and Getik-3 with
better parameters is more expedient.
Cascade of Stations on River Getik
Cascade of Stations on river Getik constitutes three successive
stations Getik-1, Getik-2 and Getik-3. In the present station
Getik-1 is the most developed one. The work draft of the station is
made; the draft underwent both technical and ecologic State
examinations of experts.
Stations Getik-2 and Getik-3 are developed on the levels of
technical-economic substantiation.
HPP
“Getik-1”
Static head H=250m
Estimated pressure H=187m to 245m
Flow Q=4,2
to 0,25m3/s
Penstock L=7250m,
D=1200mm
The height of tail water above sea level – 1280m
Capacity 6,5 MW
Power generation 20.1 mln kWh
It
is estimated that 6,5 mln USD +/-10% (including VAT) equity is
required to implement this project.
HPP
“Getik-2”
Static head H=140m
Estimated pressure H=120m to 140m
Flow Q=4,2
to 0,25m3/s
Penstock L=5750m,
D=1400mm
The height of tail water above sea level – 1140m
Capacity 4,5 MW
Power generation 15.2 mln kWh
It
is estimated that 4,5 mln USD +/-10% (including VAT) equity is
required to implement this project.
HPP
“Getik-3”
Static head H=140m
Estimated pressure H=124m to 141m
Flow Q=4,2
to 0,25m3/s
Penstock L=5500m,
D=1400mm
The height of tail water above sea level – 1000m
Capacity 4,5 MW
Power generation 15.5 mln kWh
It
is estimated that 4,5 mln USD +/-10% (including VAT) equity is
required to implement this project.
Cascade of Stations on River Megri
Cascade of Stations on river Megri constitutes two successive
stations Megri-1 and Megri. At the present station Megri is the most
developed one. The work draft of the station is made; the draft
underwent both technical and ecologic State examinations of experts.
At our disposal we also had the draft of Megri SHPP, made by German
Company “Fichtner”, however we found it necessary to make some
changes in that draft, which was reflected in the work draft.
Station Megri-1 is developed on the level of technical-economic
substantiation.
HPP “Megri”
Static head H=270m
Estimated pressure H=224m to 265m
Flow Q=3,2
to 0,3m3/s
Penstock L=5250m,
D=1200mm
The height of tail water above sea level – 1170m
Capacity 6,5 MW
Power generation 22.1 mln kWh
It
is estimated that 7,0 mln USD +/-10% (including VAT) equity is
required to implement this project.
HPP
“Megri-1”
Static head H=220m
Estimated pressure H=190m to
215m
Flow Q=1,8
to 0,2m3/s
Penstock 1 L=3000m,
D=820mm
Penstock 2 L=3200m, D=630mm
The height of tail water above sea level – 1443m
Capacity 3,0 MW
Power generation 9.2 mln kWh
It
is estimated that 3,5 mln USD +/-10% (including VAT) equity is
required to implement this project.
Station Pambak
Station Pambak is developed on the level of technical-economic
substantiation. Works on work draft of the station have started. The
Hydrologic, topographic and geologic explorations of Pambak hydro
power station are finished.
HPP
“Pambak”
Statik head H=177m
Estimated pressure
H=169m to 174m 174m
Flow
Q=15,0 to 3,6m3/s
Derivation part: water is taken into derivation tunnel.
Derivation tunnel is constructed in the rock and has length of 5300m
and internal diameter 3m. Penstock – 3 line L=500m, D=1200mm
The height of tail water above sea level – 1024m
Capacity 21.0 MW
Power generation 83.9 mln kWh
It
is estimated that 22,0 mln USD +/-10% (including VAT) equity is
required to implement this project.
The
market prices of materials and equipment were takes as a base for
the evaluation and calculation of the building value. However, the
Company has resources to buy several materials for below-market
price. Besides, “Griar” CJ-SC has a large building-assembling
organization, which may carry put building works. As the experience
and evaluations show there is a possibility of lower really the
value of constructing Hydro Power Plant for 10-20%.
The
summary table of all Small HPP with the calculation of real value
construction /-15%/ is below:
|
Name of SHPP |
Set capacity
in kWt. |
Quantity of electric power per year
in mln.kWt/h |
Sale of electrical power per year
in thaus.$ |
Building terms
in months. |
Needed capital in thaus.$ |
|
Getik-1 |
6500 |
20.1 |
1.085 |
18 |
5500 |
|
Getik-2 |
4500 |
15.2 |
821 |
18 |
3800 |
|
Getik-3 |
4500 |
15.5 |
837 |
18 |
3800 |
|
Megri |
6500 |
22.1 |
1193 |
18 |
6000 |
|
Megri-1 |
3000 |
9.2 |
497 |
12 |
3000 |
|
Pambak |
21000 |
83.9 |
4531 |
48 |
18700 |
|
Total |
46000 |
166.0 |
8.964 |
|
40800 |
The
Company is interested in different types of cooperation in the
sphere of constructing small HPP on the territory of Armenia. If the
Company receives a long-term credit (or a companion-investor) the
construction of the designed HPP is foreseen by stages.
Taking into consideration that the most ready for the construction
are Getik-1, Megri and Pambak stations we intend to the construction
of these stations at the same time (at first priority). The incomes
of Getik-1 and Megri stations exploitation 18 months are intended to
be directed to the construction of Getik-2, Getik-3, Megri-1 SHPP.
Construction of HPP of the second turn - Getik-2, Getik-3, Megri-1
SHPP will start at the beginning of the second year and end 18 later (see schedule of money means invested in the construction).
“Griar” CJ-SC suggests the investors to establish a joint
organization for construction of SHPP on the territory of RA and
investment of construction.
First variant
The
investor invests 32.0 mln. USD by stages into the program:
1st year 10.0 mln. USD
2nd year 16.0 mln. USD
3rd year 6.0 mln. USD
Moreover, the investor becomes the owner of 50% of shares of the
program (with the value of 41 mln. USD). The calculations show that
we will start to get incomes starting from the 5th year.
It is necessary to take into consideration that 4.5 years after
starting the construction the total value of building-assembling
works will reach 41 mln. USD at the account of operational SHPP
Getik-1, 2, 3, Megri, Megri-1 (see schedule of Variant-1).
Second Variant
The Investor invests 32.0 mln. USD into the program as in the first
variant. The return of the invested money to the investor starts
from the fifth year after the beginning of construction and ends at
the end of eighth year. The Investor owns 50% of shares within the
period of 5 years, having at the same time income of 22.5 mln. USD
(see
schedule of Variant-2)
Third Variant
The Investor draws a credit for 12 years for the mentioned program
with the total value of 42.8 mln. USD by stages with 10% rate per
year.
1st year 11.0 mln. USD
2nd year 18.6 mln. USD
3rd year 9.2 mln. USD
4th year 4.0 mln. USD
Percent are paid each year, and the return of the basic sum of the
credit starts from the fifth year after the beginning of
construction and ends at the end of eleventh year. (see
schedule of Variant-3).
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