The Stakeholders 1 Tourism Domestic supply Environment River bed incision Hydropower Floods Irrigation Aquaculture Upstream activities Navigation INTERESTS
The Stakeholders
1
Tourism
Domestic supply
Environment
River bed incision
Hydropower
Floods
Irrigation
Aquaculture
Upstream activities
Navigation
INTERESTS
Hydropower
2
SON LA
HOA BINH
TUYEN QUANG
THAC BA
Hydropower
3
Hydropower
4
The goal of the hydropower stakeholders is to maximize profit.
Only one company (EVN)?Many independent companies ?Which one?
One or many companies?
Hydropower
Max profit -> max production ?
The most simple indicator might be
Expected average energy production per year [Kwh/y]
However we think that the value of the energy production changes from day to day, even if the selling (administrative) price of energy is not changing overtime. Therefore the production [Kwh/y] is not a suitable indicator.
Expected average energy production per year [Kwh/y] could be weighted differently for different period of the year, because energy has a different value in different period of the year:
Max profit -> could be based on weighted sum of daily production ?
PtRR: Energy production of
Red River system in day t
βt: weights to take into account the different value of energy in different period (t) of the year
8
If the import is not null
in day t
Cost for one Kwh imported
saving got by substituting one
thermal Kwh with one hydro-generated
The value (opportunity price) of one Kwh
If the import is null
In 2011 Vietnam has imported the 4.6% of his total energy consumption
expenditure for the energy imported
saving got by substituting thermal power with hydropower
Annual average cost of lost hydro-power production
H
tt
HP
Ni
1
1 RRt Tmod
Energy demand faced by Red River system in day t
RRtP
Energy production of Red River system in day t
9
Floods
10
TUYEN QUANG CITY
HANOI
PHA LAI
11
Hanoi
Floods
12
Hanoi
Floods
13
Pha Lai
Floods
14
TUYEN QUANG CITY
HANOI
PHA LAI
PHA LAI
Floods
1515
SON TAY
HANOI
PHA LAI
Why not make reference to Son Tay?
16
Floods: Son Tay -> Hanoi
1961-2011
17
MIKE 11 simulation1961-2011
Floods: Son Tay -> Hanoi
18
1961-2011
Floods: Son Tay -> Pha Lai
19
MIKE 11 simulation1961-2011
Floods: Son Tay -> Pha Lai
Floods
In conclusion:Minimize flood levels in Son Tay?
Indicators:Frequency of alarm level overcoming (Hanoi-Pha Lai)Duration of overcoming -> risk of dike break…..
Irrigation
21
NhueDa DoThuy NguyenVinh BaoTien LangAn Kim HaiNgu Huyen KheBac Hung HaiNam Thai BinhBac Thai BinhNam Nam Dinh
11 Irrigation districts in the Delta
22
The lowering of the water level in the river and canal network has caused problems for irrigation and MARD has defined mandatory release period during the dry season, in order to reach the target level in Hanoi (2.3 m at Long Bien station).
Irrigation
23
Target level 2.3 m
Irrigation
Hanoi water levels and reservoirs release
Hanoi level
Hoa Binh
Tuyen Quang
Thac Ba
2011
Irrigation
In conclusion:Satisfaction of 2,3 m at Hanoi.
But when?Is it sufficient now, and in the future (bed incision)?
Other water uses
25
AquacultureUrban and IndustriesDomestic water in rural areaWater for livestockWater for environment (canals)
11 Irrigation districts in the Delta
26
Bac Hung Hai
All the water uses in the Delta are accounted for in the estimated water demand, computed for each irrigation district on a ten days base
IrrigationAquacultureUrban and IndustriesDomestic water for rural areaWater for livestockWater for environment
Other water uses ????
27
All the water uses in the Delta are accounted for in the estimated water demand, computed for each irrigation district on a ten days base
North Thai Binh
IrrigationAquacultureUrban and IndustriesDomestic water for rural areaWater for livestockWater for environment
Other water uses
28
All the water uses in the Delta are accounted for in the estimated water demand, computed for each irrigation district on a ten days base
All the districts
IrrigationAquacultureUrban and IndustriesDomestic water for rural areaWater for livestockWater for environment
Other water uses
29
IrrigationAquacultureUrban and IndustriesDomestic water for rural areaWater for livestockWater for environment
Other water uses: environment
The critical issues for environment in the Red river system are related to pollution of water from domestic or industrial sources. The water scarcity of the last years has exacerbated the problem, decreasing the dilution effects, with an environmental crisis in the Nhue Irrigation District. The estimated water demand includes the water for environmental services in the Delta.
Other water uses
Water deficit
30
Model of the Delta (MIKE 11)
11 Irrigation Districts 88 Sluice gates 293 (equivalent) pumps
31
Water deficit
Irrigation <-> water uses
In conclusion:Total deficit in the yearTotal deficit in particular periodsCrop stress….
As above but separate for each district
River bed incision
33
34
River bed incision is a big issue for the management of the Red-Thai Binh river system. The IMRR project will analyze the effects of reservoirs regulation on this sector through the implementation of a geomorphological model, which could also define future scenarios of river bed incision.
Sand mining
River bed incision
35
Stability of bridges
River bed incision
36
Water supply
River bed incision
37
Navigation
River bed incision
River bed incision
time evolution 10 – 20 years
2000 Indicator:incision of the river bed in critical sections.
Upstream activities
39
40
Agricultural and forestry activities in the upper catchments may affect the water and sediment flow to the reservoirs. There are no specific data about this influence, and stationarity is expected.
Upstream activities
Tourism
41
Tourism in Red River and its tributaries has shown its potential and promising room for development, but at present profits from this activity are not relevant and possible indicator should be postponed to further researches.
River environment
42
43
All the interest and uses have an effect on river ecosystem quality. Proposed indicators:
1. Water deficit from a given Minum Environmental Flow in a control section
2. Distance from a reference status (i.e. natural flows without reservoirs)
3. Indicators of Hydrologic Alteration
IWARP proposal
To be defined
River environment
Navigation
44
45
Navigation water requirement can be summarized with a range of levels at the Long Bien station in Hanoi, presently defined as 1.1 meter, as a minimum, and 11.5, as a maximum. A world bank project and other action have planned to modify some streches of the river in order to improve navigation conditions: the project will be consider if and when these activities will influence the sector requirements.
Navigation
46
Navigation
47
Navigation
Stakeholders and Sectors
48
Tourism
Domestic and industrial supply
River Environment
River bed incision
Hydropower
Floods
Irrigation
Aquaculture
Upstream activities
Navigation
INTERESTS SECTORS
R. Environment
River bed incision
Hydropower
Floods
Navigation
Water supply
Winter crop
Canal Environment
Will not be considered