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