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Alexandre Yersin
sadfasEnglish > Home > Planning - development
Resolution Adopting The Planning For Electricity Development In Lam Dong Province In The 2016-2025 Stage With Considerations By 2035 

DECIDES

Article 1. to adopt the Planning for electricity development of Lam Dong Province in the 2016-2025 stage with considerations till 2035 (Part I: Planning for development of the 110KV electricity system).

(See the Planning for development of the 110KV electricity system attached) 

Article 2.

1. to assign the Lam Dong Provincial People’s Committee to complete the planning documentation and send to the competent authorities for approval.

2. The Lam Dong Provincial People’s Council and its relevant competent agencies will supervise the implementation of this Resolution in accordance with the laws.

This Resolution was adopted on 11th July 2018 and takes effect from 21st July 2018./.


MAIN ITEMS OF CONTENT

PLANNING FOR ELECTRICITY DEVELOPMENT IN LAM DONG PROVINCE

IN THE 2016-2025 STAGE WITH CONSIDERATIONS TILL 2035

(PART I: PLANNING FOR DEVELOPMENT OF THE 110KV ELECTRICITY SYSTEM)

(Attached to Resolution No. 83/2018/NQ-HĐND dated 11th July 2018

of Lam Dong Provincial People’s Council)

PART  I

OBJECTIVES AND GENERAL ORIENTATION

I. Objectives

1. Objectives: The development of power shall ensure a harmony of the supply source and the grid system to meet Lam Dong Province’s demands of socio-economic development, national defense and security.

2. Specific objectives: Attention shall be paid to the harmonious development of the electricity transmission and distribution grids to satisfy the targets of Lam Dong socio-economic development with the growth rate of GRDP at 9%/year in the 2016 - 2020 stage; 8.5%/year in the 2021 - 2025 stage; and 8%/year in the 2026 - 2035 stage, particularly (see appendix 1 attached)

a) By 2020: Maximum output: Pmax = 323.6 MW; commercial electricity: 1,607 million kWh; the growth rate of commercial electricity in  the 2016 - 2020 stage will be 11.84%/year.

b) By 2025: Maximum output: Pmax = 524.4 MW; commercial electricity: 2,682 million kWh; the growth rate of commercial electricity in  the 2021 - 2025 stage will be 10,79%/year.

c) By 2030: Maximum output: Pmax = 772 MW; commercial electricity: 4,130 million kWh; the growth rate of commercial electricity in  the 2026 - 2030 stage will be 8.96%/year.

d) By 2035: Maximum output: Pmax = 1,090 MW; commercial electricity: 6,064 million kWh; the growth rate of commercial electricity in  the 2031 - 2035 stage will be 8.29%/ year.

II. General orientation

1. The development of electricity grids and distribution of power loads must satisfy the requirements of power quality, and the electricity supply must win the trust in community.

2. The development of electricity grids must go with the putting of electricity plants into operations to obtain general effects in investment of the national and regional electricity systems; and be suitable with the electricity industry’s development strategy, electricity development planning, and other local and regional plannings.

3. Develop the 220kV and 110kV electricity grids, improve the regional electricity network to obtain the trust in electricity supply, reduce losses in distribution lines, and improve the 22kV supply lines to supply electricity for remote areas.

4. Build electric transmission lines with expectation of long-term development; use steel electric posts strong enough so that numerous lines of electric voltages can be hooked separately on the same row of electric posts rather than building more posts; Cities, towns, and places can be huge sources of power demand, which requires reserves and flexibility, and load cables buried underground.

 

PART II

MAIN CONTENTS OF THE PLANNING

FOR DEVELOPMENT OF THE 110 KV ELECTRICITY SYSTEM

 

I. Existing development of the province’s electricity and assessment of the implementation of the previous electricity development planning

1. Electricity supplies:

At present, electricity used in Lam Dong Province comes from nine medium and small hydraulic electricity plants with a total installed capacity of 57.3 MW, and twelve big hydraulic electricity plants with a total installed capacity of 1,404 MW.

1.1. Medium and small hydraulic electricity plants, including:

- Suoi Vang hydraulic electricity plant (in Lac Duong District) with a capacity of 4.4 MW, connected to the 22 kV line, feeder 472 of Da Lat Station 1;

- Ta Nung hydraulic electricity plant (Da Lat City) with a capacity of of 02 MW, connected to the 22 kV line of feeder 478 of Da Lat Station 1;

- Da Khai hydraulic electricity plant (in Lac Duong District) with a capacity of 8,1 MW, connected to the 22 kV line of feeder 471 of Da Lat Station 2;

- Quang Hiep hydraulic electricity plant (District Duc Trong) with a capacity of 0,5 MW, connected to the 22 kV line of feeder 474 of Duc Trong Station;

- Loc Phat hydraulic electricity plant (Bao Loc City) with a capacity of 0,6 MW, connected to the 22kV 476 of the Bao Loc Station 220 kV;

- Dai Nga hydraulic electricity plant (Bao Loc City) with a capacity of 10 MW, connected to Feeder 22kV 472 of the Bao Loc 220kV station;

- Da Kai hydraulic electricity plant (Bao Lam City) with a capacity of 08 MW, connected to busbar 22 kV at the Bao Lam 110 kV station;

- Dam Bol hydraulic electricity plant (District Đạ Tẻh) with a capacity of 10,2 MW, connected to busbar 22 kV at the Da Teh 110 kV station;  

- Dasiat hydraulic electricity plant (Bao Lam District) with a capacity of 13.5 MW, connected to the busbar 22 kV of the Dak Nong 110 kV station (Dak Nong station).

1.2. Large hydraulic electricity plants, including:

- Da Nhim hydraulic electricity plant (Ninh Son District, Ninh Thuan Province) with a capacity of 4x40 MW, connected to the local 220 kV grid;

- Dai Ninh hydraulic electricity plant (Duc Trong District) with a capacity of 2x150 MW, connected to the busbar 220 kV station 500kV Di Linh;

- Hydraulic electricity plant Dong Nai 2 (District Di Linh) with a capacity of 2x36,5 MW, connected to the busbar 220 kV station 500kV Di Linh;

- Hydraulic electricity plant Dong Nai 3 (Bao Lam District) with a capacity of 2x90 MW, connected to the busbar 220 kV station 500kV Dak Nong (Dak Nong Province);

- Hydraulic electricity plant Dong Nai 4 (Bao Lam District) with a capacity of 2x170 MW, connected to the busbar 220 kV station 500kV Dak Nong (Dak Nong Province);

- Hydraulic electricity plant Dong Nai 5 (Bao Lam District) with a capacity of 2x75 MW, connected to the busbar 220 kV station 500kV Dak Nong (Dak Nong Province);

- Hydraulic electricity plant Yan Tan Sien (Lac Duong District) with a capacity of 2x9,75 MW, connected to the busbar 110 kV station 110 kV Suoi Vang;

- Hydraulic electricity plant Krông Nô 2 (Lac Duong District) with a capacity of 2x15 MW, connected to the busbar 110 kV, the distribution 110 kV - Hydraulic electricity plant Krong Nô 3;

- Hydraulic electricity plant Krông Nô 3 (Dam Rong District) with a capacity of 2x9 MW, connected to the busbar 110 kV, station 110 kV Suoi Vang;

- Hydraulic electricity plant Da Dang 2 (Duc Trong District) with a capacity of 2x17 MW, connected to the lines 110 kV Di Linh - Duc Trong;

- Hydraulic electricity plant Bao Loc (Bao Lam District) with a capacity of 2x12,5 MW, connected to the busbar 110 kV, station 220 kV Bao Loc;  

- Hydraulic electricity plant Đam B’ri 2 (Đạ Huoai District) with a capacity of 2x37,5 MW, connected to the busbar 110 kV, station 220 kV Bao Loc.

2. Transmission network 500 kV:

At present, Lam Dong Province has one line 500 kV and a transformer station 500 kV, which is the 500 kV line of Pleiku - Di Linh - Tan Dinh - Phu Lam, 4xACSR-330, 536,6 km long (going through Lam Dong Province over 141 km long) and the transformer station 500/220 kV - 450 MVA Di Linh which receives the power from the Dai Ninh Hydraulic electricity plant and makes power contribution to the national grid.

3. Transmission network 220 kV:

3.1. The 220 kV lines:

At present, electricity provided for Lam Dong Province comes from the network of 220kV national lines. The total length of the lines until 2017 was 403km. The 220kV lines are to supply electricity for the 220kV Bao Loc, Duc Trong stations and transmit power to the national grid from the following hydraulic electricity plants, including

- The Dai Ninh-Di Linh 220 kV hydraulic electricity plant, ACSR-330, 41 km long;

- The Da Nhim - Duc Trong 220 kV lines- Di Linh hydraulic electricity plant, ACSR-795MCM, 76 km long;

- The 220 kV line of Ham Thuan - Bao Loc, AC-400, 28 km long;

- The 220 kV line of Di Linh - Bao Loc, ACSR-795MCM, 33 km long;

- The 220 kV line of Bao Loc - Song May, ACSR-795MCM, 128 km long;

- The 220 kV Bao Loc - Phan Thiet lines, AC-400, 82 km long;

- The 220 kV line of Di Linh - Dong Nai 2, AC-400, 15 km long.

3.2. 220 kV transformer station:

Currently, electricity used in Lam Dong Province comes from the national grid through three 220/110 kV stations:

- The 220/110 kV - (63+125) MVA Bao Loc transformer station receivs electricity from the 500 kV Di Linh station and Ham Thuan Hydraulic electricity plant (2x150 MW), Da Mi (2x87,5 MW);

- The Duc Trong 220/110 kV - 125 MVA transformer station receives electricity from the 500 kV Di Linh station and Da Nhim hydraulic electricity plant (4x40 MW);

- The Da Nhim 220/110 kV - 2x63 MVA transformer station receives electricity from the 500 kV Di Linh station and Da Nhim hydraulic electricity plant (4x40 MW).

4. Grid 110 kV:

4.1. Lines 110 kV:

Total length of the 110 kV lines in Lam Dong Province: 339.66 km, including:

- The Da Nhim - Suoi Vang 110 kV line, AC-240 and ACSR 336 MCM, 42 km long;

- The Da Nhim - Don Duong110 kV line, AC-185, 24 km long;

- The Dơn Dương - Duc Trong 110 kV line, AC-185, 19,4 km long;

- The Da Lat 2 - Suoi Vang 110 kV line, AC-185, 8,36 km long;

- The Da Lat 1 – Da Lat 2 110 kV line, AC-240 and ACSR 336 MCM, 12,5 km long;

- The Duc Trong - Da Lat 1 110 kV line, AC-185, 29,4 km long;

- The Da Dang 2 – Duc Trong 110 kV line, AC-240, 20,3 km long;

- The Duc TrongLam Ha 110 kV line, AC-240, 14 km long;

- The Da Dang 2 - Di Linh 110 kV line, AC-240, 30 km long;

- The  Bao Loc - Di Linh 110 kV line, AC-185, 30 km long;

- The Bao Loc - Bao Lam 110 kV - Bauxite Aluminum, AC-185, 26,7 km long;

- The Bao Loc - Dam B'ri line 110 kV line, AC-240, 39,5 km long;

- The Đam B'ri - Da Teh 110 kV B'ri - Da Tẻh line, AC-240, 38,6 km long;

- The Tan Phu- Da Teh 110 kV line, AC-240, 31 km long.

4.2. 110 kV transformer stations:

a) The Da Lat 1 110/22 kV station receives electricity from the Da Nhim 220/110 kV station and the Duc Trong 220/110 kV station, through the Da Lat 1 – Duc Trong 110 kV line, AC-185, 29,4 km long and the Da Lat 1 – Da Lat 2 110 kV line, AC-240 and ACSR 336 MCM, 12,5 km long.

The 110 kV station Da Lat 1 supplies electricity for Da Lat City and part of Lam Ha District and Duc Trong District, in connection to the 22 kV network with the Duc Trong Station.

b) The Da Lat 2 110/22 kV station receives electricity from the Da Nhim 220/110 kV station  and the Duc Trong 220/110 kV station, through the Da Lat 2 – Suoi Vang 110 kV line, AC-185, 8,36 km long and the Da Lat 1 – Da Lat 2 110 kV line, AC-240 and ACSR 336 MCM, 12,5 km long.

The Da Lat 2 110 kV station supplies electricity for Da Lat City and Lac Duong District, in connection with the 22 kV grid and the da Lat 1 station.

c) The Suoi Vang 110/22 kV station receives electricity from the Da Nhim 220/110 kV station, the Yan Tann Sien hydraulic electricity plant and the hydraulic electricity plant Krong Nô 2, 3, through the Suoi Vang - Yan Tann Sien 110 kV line, AC-240, 26,2 km long; the Suoi Vang - Krông Nô 2 110 kV line, AC-240, 37,3 km long; the Da Lat 2 - Suoi Vang 110 kV line, AC-185, 8,36 km long and the Suoi Vang - Da Nhim 110 kV line, AC-240 and ACSR 336 MCM, 42 km long.

The Suoi Vang 110 kV station supplies electricity for the district and areas adjacent to Da Lat City.

d) The Lam Ha 110/22 kV station  receives electricity from the Duc Trong 220/110 kV station through the Đuc Trong - Lam Ha 110 kV lines, AC-240, 13.8 km long.

The Lam Ha 110 kV station supplies electricity for the district and areas adjacent to Da Lat City and Duc Trong District.

e) The Duc Trong 1 110/22 kV station receives electricity from the Duc Trong 220/110 kV station, the Da Nhim  220/110 kV station and the Da Dang 2 hydraulic electricity plant through the Duc Trong 1 - Duc Trong 110 kV lines, AC-240, 6.0 km long; the Duc Trong 1 - Don Duong 110 kV lines, AC-185, 19,4 km long and the Duc Trong 1 - Da Dang 2 110 kV lines, AC-240, 20.3km long.

The Duc Trong 1 110 kV station supplies electricity for Duc Trong District and Lam Ha District, and connecting to the 22kV grids in Da Lat City and Don Duong District.

g) The Don Duong 110/22 kV station receives electricity from the Duc Trong 220/110 kV station and the Da Nhim 220/110 kV station through the Duc Trong 1 - Don Duong 110 kV lines, AC-185, 19.4 km long and the Don Duong -Da Nhim 110 kV lines, AC-24, 24 km long.

The Don Duong 110 kV station supplies electricity for Don Duong District and connecting to the 22kV grids in adjacent areas.

h) The Di Linh 110/22kV station receive electricity from the Di Linh 220/110 kV station and the Da Dang 2 hydraulic electricity plant  through the Di Linh - Da Dang 2 110 kV lines, AC-240, 30 km long and the Di Linh - Bao Loc 110 kV lines, AC-185, 30 km long.

The Di Linh 110 kV station supplies electricity for Di Linh District and connecting to the 22 kV grids in adjacent areas.

i) The 110/22 kV - 40 MVA station connecting to Bao Loc receives electricity from the 110 kV busbar of the Bao Loc 220/110 kV station through the Bao Loc - Di Linh 110 kV line, AC-185, 30 km long; the Bao Loc 110 kV line- Bao Loc hydraulic electricity plant, LGJ-150, 18.2 km long; the Bao Loc 110 kV line - Dam B'rihydraulic electricity plant, AC-240, 39.5 km long and the Bao Loc- Bao Lam 110 kV line, AC-185, 20.1 km long.

The Bao Loc110 kV station supplies electricity for Bao Loc City and Bao Lam District, and connecting to the 22kV grids in adjacent areas.

k) The Bauxite 110/22/6,3 kV station receives electricity from the Bao Loc 220/110 kV station through the Bao Lam - Bauxite aluminum 110 kV line, AC-185, 6.2 km long.

The Bauxite 110 kV station supplies electricity for the aluminum manufacturing area.

l) The Bao Lam 110/22 kV station receives electricity from the Bao Loc 220/110 kV station through the Bao Loc – Bao Lam 110 kV line, AC-185, 20.1 km long and the Bao Lam- Bauxite aluminum 110 kV line, AC-185, 6.2 km long.

The Bao Lam 110 kV station supplies electricity for Bao Lam District.

m) The Da Teh 110/22 kV station receives electricity from the Bao Loc 220/110 kV station and the Dam B'ri hydraulic electricity plant through the Da Teh  110 kV line- Dam B'ri plant, AC-240, 38.6 km long and the DaTeh - Tan Phu 110 kV lines, AC-240, 31 km long.

The Da Teh 110 kV station supplies electricity for Da Teh District, Cat Tien District and Da Huoai District.

* The existing 110 kV transformer stations in Lam Dong Province are operating with the following status:

- Transformer T1: 110/22 kV (40 MVA) the Da Lat 1 110 kV station with 07 outgoing 22 kV, currently operating with Pmax = 35,7 MW (89,2%) is running at full load;

- Transformer T1: 110/22 kV (40 MVA) The Da Lat 2 110 kV station with 06 outgoing 22 kV, currently operating with Pmax = 26,1 MW (65,25%) is running at sufficient load;

- Transformer T1: 110/22 kV (25 MVA) The Suoi Vang 110 kV station with 05 outgoing 22 kV, currently operating with Pmax =11,9 MW (47,6%) is running lower than the full load;

- Transformer T1: 110/22 kV (40 MVA) The Lam Ha 110 kV station with 04 outgoing 22 kV, currently operating with Pmax = 26,1 MW (65,25%) is running at sufficient load;

- Transformer T1: 110/22 kV (40 MVA), Transformer T2: 110/22 kV (25 MVA) the Duc Trong 110 kV station with 07 outgoing 22 kV, currently operating with Pmax = 42 MW (66,6%) is running sufficient load;

- Transformer T2: 110/22 kV (40 MVA) the Don Duong 110 kV station with 04 outgoing 22 kV, currently operating with Pmax = 29,8 MW (74,5%) is running at full load;

- Transformer T1: 110/22 kV (25 MVA), Transformer T2: 110/22 kV (25 MVA) the Di Linh 110 kV station with 08 outgoing 22 kV, currently operating with Pmax = 21,1 MW (42,2%) is running lower than the full load;

- Transformer T4: 220/110/22 kV (40 MVA) the Bao Loc 110 kV station with 05 outgoing 22 kV, currently operating with Pmax = 34 MW (85%) is running  at full load;

- Transformer T1: 110/22/6,3 kV (20 MVA), Transformer T2: 110/22/6,3 kV (20 MVA) the Bauxite 110 kV station supplies electricity for customers; Transformer T1: 110/22 kV (40 MVA) the Bao Lam 110 kV station with 04 outgoing 22 kV, currently operating with Pmax = 6,1 MW (15,25%) is running lower than the full load;

- Transformer T1: 110/22 kV (40 MVA) the Đạ Tẻh110 kV with 06 outgoing 22 kV, currently operating with Pmax = 10,8 MW (26,9%) is running lower than the full load.

The existing loading status of the aforesaid 110 kV transformers shows that the loading capacity of the transformers has averagely reached approximately 47.99%; the transformer at the Da Lat 1 station (89,2%), the Don Duong station (74,5%) and the Bao Loc station (85%) currently running at full load. With the current load, the transformers will become full load and be expected to overload. As a result, much attention should be paid to seeking a solution.

5. Medium and low voltage power networks

5.1. The 35 kV power network:

In Lam Dong Province, there is only one transformer station known as the 35/22 kV Rômen with the capacity of 1x6,3 MVA, located in Dam Rong District. This station receives electricity from the Lak 35 kV station (Dak Lak Province) through the Lak – Rômen line, AC-95, 22 lan long to supply electricity for Dam Rong District.

5.2. The 22 kV power network:

The total length of the current 22kV line in Lam Dong Province is 3,477.5 km, including the 22 kV line invested by customers is 679.7 km; and the 22 kV line invested by the electricity corporation 2,797.9 km.

Electricity of the 22kV distribution network of the province has been provided by the following 110 kV transformer stations:

a) The Da Lat 1 110/22 kV station: there are 5 feeders 22 kV including 472, 474, 476, 478, and 480, supplying electricity for Da Lat City and adjacent areas: of which: feeder 472 connecting to feeder 471, feeder 474 connecting to 473, 476 connecting to 475, and 478 connecting to 477 of the Da Lat 2 station, feeder 480 connecting to 474 of the Duc Trong station and 477 of the Don Duong station and connected to the Quang Hiep hydraulic electricity plant.

b) The Da Lat 2 110/22 kV station: there are 4 feeders 22 kV comprising 471, 473, 475, and 477, supplying electricity for Da Lat City and adjacent areas; of which, the feeders 22kV have been conncted to the feeders of the Da Lat 1 station. In addition, the Da Khai hydraulic electricity plant (8MW) has been connected to feeder 471 of the station.

c) The Suoi Vang 110/22 kV station: There are 3 feeders 22 kV including 474, 478, and 480, supplying electricity for Lac Duong District, particularly feeder 480 supplies electricity for the Dan Kia Water Plants 1 and 2; feeder 478 supplying electricity for the LangBiang and 476 for the areas adjacent to Da Lat City and connecting to feeder 478 of the Da Lat 1 station.

d) The Rômen 35/22 kV station: There are 2 feeders 22 kV including 471 and 472, supplying electricity for Dam Rong District and Dung K’N Commune (Lac Duong District); of which, feeder 471 connecting to 471 of the Lam Ha station.

e) The Lam Ha 110/22 kV station: There are 2 feeders 22 kV including 471 and 473, supplying electricity for Lam Ha District and adjacent areas; of which, feeder 471 connecting to 477 of the Di Linh station, feeder 473 connecting to 471 of the Duc Trong station and 478 Da Lat and the Ta Nung hydraulic electricity plant.

g) The Duc Trong 110/22 kV station: There are 5 feeders 22 kV including  471, 472, 473, 474, and 475, supplying electricity for Duc Trong District, Lam Ha District and adjacent areas. Of which, feeder 471 connecting to feeder 473 of the Lam Ha station, feeder 473 connecting to the Dai Ninh hydtraulic electricity plant, feeder 474 connecting to feeder 480 of the Da Lat 1 station and feeder 477 of Don Duong station, feeder 475 connecting to feeder 477 of Di Linh station and feeder 473 of Lam Ha station.

h) The Don Duong 110/22 kV station: There are 4 feeders 22 kV including 471, 473, 475, and 477, supplying electricity for Don Duong station and adjacent areas; of which, feeder 477 connecting to feeder 474 of Duc Trong station and feeder 480 of Da Lat 1 station, feeder 473 connecting to 472 of the Cang Rang circuit breaker station.

i) The Di Linh 110/22 kV station: There are 4 feeders 22 kV including 471, 473, 475, and 477, supplying electricity for Di Linh District and adjacent areas; of which, all the 22 kV feeders have been connected to the 22kV network in the region, feeder 471 connecting to feeder 478 of the Bao Loc 220 kV station, feeder 477 connecting to feeder 471 of Lam Ha station and feeder 475 of the Duc Trong station.

k) The Bao Loc 220 kV station the 110/22 kV-40 MVA transformer: There are 5 feeders 22 kV including 472, 474, 476, 478, and 480, supplying electricity for Bao Loc City, Bao Lam District and adjacent areas; of which, the 22 kV feeders have been all connected to the 22 kV power network in the region, feeder 476 connecting to feeder 471 of the Bao Lam station, feeder 478 connecting to 471 of the Di Linh station.

l) The Bao Lam 110/22 kV station: There are 4 feeders 22 kV including 471, 473, 475 and 477, supplying electricity for Bao Lam District, and adjacent areas; of which, the 22kV feeders have been connected to the 22 kV power network in the region, feeder 471 connecting to 476 of the Bao Loc 220 kV station, feeder 473 connecting to the Da Kai hydraulic electricity plant and feeder 475 supplying electricity for the Bauxite Aluminum.

m) The Da Teh 110/22 kV station: There are 3 feeders 22 kV including 472, 474, and 476, supplying electricity for Đạ Tẻh District, Da Huoai District and Cat Tien District; of which, feeder 474 supplies electricity for Cat Tien District, 472 for Da Teh District, Da Huoai District through the 2 circuit breaker stations of Da Teh and Da Huoai. In addition to these 3 feeders, there is the feeder 484 connecting to the Dam Bol hydraulic electricity plant.

* Assessments on the existing medium voltage network:

- The Da Lat 1 110 kV station: Feeder 472 (conductor XLPE-240, loading capacity 605A) is running a load of 6 MW (28,95%); feeder 474 (conductor XLPE-240, loading capacity 605A) is running a load of 3,5 MW (16,89%); feeder 476 (conductor XLPE-240, loading capacity 605A) is running a load of 2,7 MW (13,03%); feeder 478 (conductor XLPE- 240, loading capacity 605A) is running a load of 13,5 MW (65,14%) and feeder 480 (conductor XLPE-240, loading capacity 605A) is running a load of 2,6 MW (12,55%);

- The Don Duong 110 kV station: feeder 471 (conductor AC-185, loading capacity 510A) is running a load of 6,5 MW (37,21%); feeder 473 (conductor AC-185, loading capacity 510A) is running a load of 4,3 MW (24,61%); feeder 475 (conductor AC-185, loading capacity 510A) is running a load of 6,4 MW (36,64%) and feeder 477 (conductorAC-185, loading capacity 510A) is running a load of 5,4 MW (30,91%);

- The Duc Trong 110 kV station: feeder 471 (conductor AC-185, loading capacity 510A) is running a load of 4,8 MW (27,48%); feeder 472 (conductor AC-185, loading capacity 510A) is running a load of 2,4 MW (13,74%); feeder 473 (conductor AC-185, loading capacity 510A) is running a load of 6,7 MW (38,35%); feeder 474 (conductor AC-120, loading capacity 390A) is running a load of 5,8 MW (43,42%) and feeder 475 (conductor AC-240, loading capacity 605A) is running a load of  8,6 MW (41,50%);  

- The Di Linh 110 kV station: feeder 471 (conductor AC-185, loading capacity 510A) is running a load of 6,1 MW (34,92%); feeder 473 (conductor AC-185, loading capacity 510A) is running a load of 1,7 MW (9,73%); feeder 476 (formerly known as 475) (conductor AC-185, loading capacity 510A) is running a load of 3,4 MW (19,46%) and feeder 478 (formerly known as 477) (conductor AC-120, loading capacity 390A) is running a load of 5,9 MW (44,16%);

- The Bao Loc 220/110 kV station: feeder 472 (conductor AsXV-240, loading capacity 605A) is running a load of 10,4 MW (50,18%); feeder 474 (conductor AsXV-240, loading capacity 605A) is running a load of 6,9 MW (33,30%); feeder 476 (conductor AC-185, loading capacity 510A) is running a load of 4,5 MW (25,76%); feeder 478 (conductor As-185, loading capacity 510A) is running a load of 7,1 MW (40,64%) and feeder 480 (conductor AC-185, loading capacity 510A) is running a load of 2,7 MW (15,46%);

- The Da Teh 110 kV station: feeder 472 (conductor XLPE-240, loading capacity 605A) is running a load of 3,8 MW (18,34%); feeder 474 (conductor XLPE-240, loading capacity  605A) is running a load of 5,5 MW (26,54%) and feeder 476 (conductor XLPE- 240, loading capacity 605A) is running a load of 1,1 MW (5,31%);

- The Suoi Vang 110 kV station: feeder 474 (conductor AC-240, loading capacity 605A) is running a load of 1,5 MW (7,24%); feeder 478 (conductor AC-240, loading capacity 605A) is running a load of 1,2 MW (5,79%) and feeder 480 (conductor XLPE-240, loading capacity 605A) is running a load of 1,7 MW (8,20%);

- The Lam Ha 110 kV station: Tuyến 471 (conductor AC-185, loading capacity 510A) is running a load of 9,6 MW (54,95%) and feeder 473 (conductorAC-185, loading capacity 510A) is running a load of 10,2 MW (58,39%);

- The Bao Lam 110 kV station: feeder 471 (conductor ACXV-240, loading capacity  605A) is running a load of 3,4 MW (16,41%); feeder 473 (conductor ACXV-240, loading capacity 605A) is running a load of 1,2 MW (5,79%); feeder 475 (conductor ACXV-240, loading capacity 605A) is running a load of 2,0 MW (9,56%) and feeder 477 (conductor ACXV-240, loading capacity) is running a load of 1,1 MW (5.31%);

- The Rô Men 35 kV station: feeder 471 (conductor AC-120, loading capacity 390A) is running a load of 1,6 MW (11,98%) and feeder 472 (conductor AC-70, loading capacity 265A) is running a load of 2.0 MW (20,03%).

Cross-sectional areas of the feeders’s conductors are relatively small. Most average are from 70 mm2 to 185 mm2 and lower (conductors with cross-sectional areas of 240 mm2 are located only at the beginning of the feeders). The aforesaid figures show that all the feeders are currently loading power at an average level. No feeder is overloaded.

5.3. Distribution stations:

The total number of power distribution stations in Lam Dong Province is 4,988 with 6,340 machines and a total capacity of 637,969 kVA. The transformers with the voltage 22/0.4 kV (3 phases) or 12.7/0.23 kV (1 phase); of which: The property invested by customers comprises 1,941 stations, equal to 299,464 kVA; The property invested by the electricity is 3,047 station, equal to 338.506 kVA.

5.4. Lower voltage lines:

The total length of the lower voltage lines in Lam Dong Province was 4,331 km as of March 2017. The 3-phase lower voltage network accounted for a rather large rate, most of which are placed inside the city, town or the central areas of the communes. Some are are placed in rural areas. The demand is low and using one-phase load network.

6. Assessment of the implementation of former electricity development planning in Lam Dong Province:

6.1. Electricity load development in the 2011 -2015 period:

a) Electricity demand: Commercial electricity load increased at averagely 9.08%/year; average increasing rate per capita 8.53%/year; Pmax increased averagely 8.78%/year.

b) Electric grids: The 500 kV transmission lines did show no increase; the 220 kV lines increased averagely 19.4 meter/year; the 110 kV lines increased averagely 25.73 meter/year; the 22 kV lines increased averagely 20.33 meter/year; the 0,4 kV increased averagely 67.86 meter/year.

c) Transformer stations: The 220 kV transformer stations did not show any increase; the 110 kV transformer stations increased averagely 29 MV/year; the 22/0,4 kV transformer stations increased averagely 21,681 kVA/năm.

6.2. Comparisons between implementation and planning of the electric network in 2011-2015:

a) Electricity demands: compared to the planning, commercial electricity completed at 84,81%, average per capita reaching 79.47%; Pmax reaching 84.62%.

b) Electric grids: The 220 kV lines completed 71.9%; the 110 kV lines 71.9%; the 22 kV lines 82%; the 0,4 kV lines 25,47% accordingly.

c) Transformer stations: The 110 kV transformer stations completed 23.53%; and the 22/0,4 kV transformer stations 197.27%.

II. Existing and estimated provincial socio-economic development during the planning period

1. Economic growth criteria in 2010 - 2015:

In the 2010 – 2015 period, the economy grew upto 7.62%; of which, the agricultural-forestry sector increased 6.93%, the industry-construction sector increased 10.93% and the trading service sector increased 8.03%.

2. Some criteria of provincial socio-economic growth in 2015 - 2020:

The growth rate of GRDP (in 2010) averagely reached 8 - 9%; GRDP per capita by 2020 2020 will reach from 70 to 73 million VND; the economic structure by 2020 (based on the current prices): the agriculture, forestry and aquaculture sector will reach 46 – 64.5%, the industry – construction 19.5 - 20%, and the commercial service sector 33.5 - 34%; the natural population growth rate by 2020 will be approximately 1.02%.

III. Backgrounds for planning 

1. Backgrounds for planning

1.1. Economic parameters:

- Existing socio-economic situation in Lam Dong Province;

- Provincial socio-economic development orientation;

- Actual figures of electricity use provided by Lam Dong Electricity Company;

- Documents on electricity demands in the planning period issued by the provincial relevant departments and agencies;

- The data of the provincial Department of Statistics;

- Electricity Consumption Standards and Criteria

1.2. Technical parameters:

- Existing characteristics and parameters of the provincial grids: parameters of the 220 kV and 110 kV stations and other sources of electricity supplies in the province.

- Total power consumption of the 5 economic sectors in 2010-2015; Total power consumption of each district, city according to electricity loads in 2010 - 2015.

2. Criteria of planning in the 2016 – 2025 stage including consideration by 2035:

2.1. General:

- ensure that electricity consumption needs are estimated correctly;

- ensure that electricity is sufficiently supplied to meet households’ electricity needs;

- ensure sufficient electricity for the provincial socio-economic development during the planning period;

- Increase the trust in electricity supply and quality, much attention shall be paid to loads of type 1  in the city and in high density residential areas;

- The structures of electricity transmission grids shall satisfy the requirements of N-1, reducing energy losses.

2.2. Criteria on sources of electricity:

- Sources of electricity supply for the province shall meet the needs of energy consumption effectively including any backup as stipulated;

- Sufficient capability of contribution to the regional electricity network;

- Ensure sufficient supply of electricity in case of any incident;

- The 110 kV network is ensured to satisfy N-1;

- Apply full exploitation of local sources of electricity supply to meet energy needs in the locality;

- Mobilize electricity sources from medium and small hydraulic electricity plants to supply loads for other residential areas;

- Ensure that electricity from medium and small hydraulic electricity plants is effectively connected to the electricity system so as to maximize effective exploitation of the generation of electricity by these plants.

2.3. Criteria on elelctric grids:

- Gradually increase the people’s trust in electricity supply;    

- The structure of electric grids must satisfy the requirements of electricity supply in which a backup system is ensured and the structure is not overloaded in the future.

- Take a good advantage of the former planning to develop a new planning to accord with the general planning of Lam Dong Province;

- The 22kV grids must also meet the standards of N-1 and try to reach the low voltage grids and transformers;

- Reduce losses in electric energy from 6.47% in 2015 down to 6,2% in 2020 and to 6% in 2025.

a) Standards for eletric grid operations 

- Standards for operation of the 100kV-500kV eletric grids must apply to Circular No. 25/2016/TT-BCT dated 30th November 2016 of the Ministry of Industry and Trade;

- Standards for operation of the 100kV-500kV distribution grids must apply to Circular 39/2015/TT-BCT dayed 18th November 2015 of the Ministry of Industry and Trade;

(1) Feeders:

- The 220 kV feeders composed of cables of AC-400 or AC-500 or AC-330;

- The 110 kV feeders composed of cables of AC-185 to AC-400 or AC-185 or AC-240.

In terms of reduction of land over-occupation by electric posts, top priority shall be given to using steel electric posts strong enough so that numerous cables of electric voltages can be hooked separately on one row of electric posts rather than more posts; In addition, in a case where there is difficulty in clearance and making compensations, the exising feeders might be re-used and upgraded.

(2) Transformer stations:

- Each station 220 kV and 110 kV is designed in a way where a transformer can receive either of the supply sources in case one source may be out of order;

-  Transformers: Transformers with a capacity from 125 to 250 MVA for the 220 kV grids shall be used and from 25 - 63 MVA for the 110 kV grids, to satisfy the demands at each transformer, ensuring 50-70% of the installed capacity. Transformers must be installed in a way not to waste too much investment in many cables impossible for implementation.

Priority should be given to the choosing of transformer location easy to connect to the 220kV, 110kV feeders. A consideration shall be taken into upgrading the capacity when local electricity loads may increase in the future. Attention shall be paid to positioning transformers near the road, which will be easy for construction and operation of the transformers later.

b) Medium voltage system   

Equipment used for medium and low voltage systems must ensure that electricity must be supplied for at least 10 years after the planning period.

The medium voltage network in Lam Dong will be calculated up to 22kV and detailed by 2025. Top priority shall be given to the building of new 22kV networks.

(1) Structures of electric grids:

- In cities, towns: Medium voltage networkswill be designed with circular circuits and open circuit operation. Electricity provided for circular circuits will come from two sources of 110 kV transformers, from two busbars of a 110kV transformer or from two busbars of a 110 kV transformer;

- Rural and mountainous areas:  

(2) Cross-section of 22kV cables used in the locality:

- Heart areas of cities, towns, districts:

+ Main feeders: using underground cables with the cross-section area of > 240 mm2 or open cables with the cross-section area of  > 150 mm2;

+ Underground cables used in heart areas of cities must meet the aesthestic requirements, with the cross-section area of > 240 mm2;

+ Branch feeders: using cables with the cross-section area of > 95 mm2

- Outskirt areas and districts

+ Main fedders using cables with the cross-section area of >120 mm2;

+ Branch feeders: using cables with the cross-section area of > 70mm2

(3) Distribution transformers  

- As for public transformer stations, each station must be calculated to satisfy the sufficient capacity in the stipulated area.

- The loading capacity must be from 65% and more. In cities and/or new residential towns, (250 - 630) kVA three-phase transformers will be used; and in rural areas: (50 - 250) kVA transformers. Customers’ stations will, based on the scope and locations, be designed suitably in accordance with types of machines.

- If customers are organizations, individuals that use their own transformers, the characteristics and loads of such tranfomers must be registered and cosφ must be more than 0.9. If cosφ is lower than 0.9, the buyer must install the equipment of reactive compensations to help increase the cosφ capacity more than 0.9.

- For areas with low load density (inrural and mountainous areas…), 25; 37.5; 50 kVA one phase capacity transformers, except that three phase transformers are required. Customers’ own stations will, based on the load scope, be designed suitably in accordance with types of machines.

(4) Energy losses in medium voltage networks:

- Normally, operational voltages permitted at connecting ends shall be fluctuated compared with the nominated voltage, as follows:

+ At points connecting to electricity using customers: ± 5%;

+ At points connecting to the electricity plant: + 10% and - 5%.

- In a case where there is any incident or during the period of recovering the normal operation after an incident, the fluctuation of electricity permitted at points connecting to electricity using customers will be between + 5% and - 10% compared with thenominated voltage value.

- If there is any severe incident in the transmission or incident recovery system, the normal value must be ensured.

(5) Trust in electricity supply:

- voltage fluctuations within ± 10% compared with nominated voltage.

- Electricity must be supplied continuously in a way without any incident. The number of incidents on the system must be subject to the level of SAIDI, SAIFI and MAIFI.

(6) Reduction of energy losses: including the following causes

- Energy losses caused by power cables and equipment on the distribution networks;

- Energy losses caused by the electricity business management and long transmission lines.

c) Low voltage system:

- 220/380 V voltage level;

- For selected new low-voltage networks, electric lines will be composed of aluminum or copper twisted cables ABC. As for possibly-upgraded ones, electric lines will be composed of aluminum cables covered with AV;

- In cities, towns: electric lines will be composed of four-core aluminum or copper twisted cables ABC, with 95 mm2 cross sectional area on the main axis and with 50 mm2 on the branch axis. In a case where the load is fullm the second or third ABC cables are extended accordingly, but the radius of electricity supply does not exceed over 400m long;

- In rural areas: four-core aluminum cables ABC will be used with ≥ 70 mm2 cross sectional area on the main axis and and with 50 mm2 on the branch axis. The radius of electricity supply does not exceed over 700m long;

- Cross sectional areas of cables must be subject to the requirements of the energy loss of lower than 5%.

- Cables leading to households must be composed of copper cables of 6 mm2 and 11 mm2 cross sectional areas.

IV. Estimated electricity demands in districts, city of Lam Dong Province in the planning period

(According to Tables 1, 2 and 3 attached)

V. Provincial planning on medium and small electricity source development and 220kV transformer sources

(According to Table 4 attached)

VI. Connecting the grids to adjacent provinces:

Lam Dong Province’s electricity system during the past has been provided by the national electricity system as follows:

1. The source of 220 kV from the electricity system, including the 220 kV feeders: Bao Loc - Song May, Bao Loc - Hydraulic Electricity Ham Thuan, Bao Loc - Phan Thiet, Di Linh - Bao Loc, Di Linh - Hydraulic Electricity Dong Nai 2, Di Linh - Hydraulic Electricity Dai Ninh, Da Nhim – Duc Trong - Di Linh and other in-situ-sources from 500/220 kV - 450 MVA Di Linh station and the Da Nhim Hydraulic Electricity (4x40 MW), to supply electricity for the 220 kV Da Nhim station with a capacity of (2x63) MVA, the 220 kV Bao Loc station with a capacity of (63+125) MVA and the 220 kV Duc Trong station with a capacity of 125 MVA;

2. The 110 kV electricity networks: Most districts and cities have their 110/22 kV transformers to supply electricity for households’ electricity loads. The 110 kV stations receive their main supply sources from the three aforesaid 220kV stations, and the 110kV lines cables are also connected with ring circuits. As a result, the stations can receive electricity from the two sources, confirming that customers can trust in the electricity supply source satisfying the standard N1.

However, some zones still haven’t had 110kV transformer stations (in District of Da Huoai, Cat Tien, and Dam Rong).  

The 110 kV electricity network of Lam Dong Province has connected to Dong Nai Province through the 110 kV Da Teh - Tan Phu feeder.

3. The medium electricity network during the past has seen a relatively-impressive improvement. The total amount of electricity distribution has been increasingly going up to meet well the provincial demands of electricity.

However, due to the terrain among the districts, there is a lack of their cooperation in electricity support.

VII. Balance of provincial electricity supply and demand in each year during the planning period 

(According to Tables 5 and 6 attached)

VIII. 110 kV electricity network development program

(According to Tables 7, 8, 9, 10, 11, 12, 13, and 14 attached)

IX. Total quantity of feeders and medium-voltage transformers need investing during the planning period

1. 2016 – 2020 stage:

a) Build 712 km of new lines and upgrade 106 km of the existing dedium-voltage lines.

b) Build new transformers with a total capacity of 44 MVA, and upgrade of existing transformers with a total capacity of 26 MVA.

2. 2021 – 2025 stage:

a) Build 1.068 km of new medium lines and upgrade 159 km existing medium lines.

b) Build new transformers with a total capacity of 66 MVA, and upgrade of existing transformers with a total capacity of 39 MVA.

X. Electricity supply planning for remote areas 

The terrain makes it difficult to connect electricity cables to remote areas. Much attention shall be paid to applying solar energy, wind power, small hydraulic electricity, and solar battery of 1kW to local needs.

XI. Environmental protection and sustainable development in Lam Dong Province’s electricity development

- Save energy, use energy effectively. Special attention shall be focused on using forms of renewable energy;

- Special attention shall be paid to environmental pollution and deterioration in accordance with the Law on environmental protection, before issuing licenses for planning and investment projects;

- Attention should be paid to applying clean technologies and fuels and little-fuel consuming appliances.

XII. Land use needs of items of electricity work

Total needs of land use for electricity networks in Lam Dong by 2025 will be 5,892,298m2; of which, permanent needs for transformer stations and electric column foundations will be 253,498 m2, and the need for electricity safety corridors will be 5,638,800 m2.

Based on annual needs of land, the owners shall register their needs of land use with the competenet authorities for approval as stipulated.

XIII. Summary of the amount of investment and estimate the need of investment capital for the planning period

1. Summary of investment in electricity networks in the planning period:

1.1. The 220 kV electricity networks:

a) 220 kV lines:

- In 2016 – 2020 stage: new construction of 34.4 km;

- In 2021 – 2025 stage: new construction of 122.2 km;

b) 220 kV transformer stations:

- In 2016 – 2020 stage: upgrade the capacity of 02 2x250 MVAtransformer stations;

- In 2021 – 2025 stage: upgrade the capacity of 01 1x250 MVA transformer station.

1.2. 110 kV electric grids:

a) 110 kV lines:

- The 110 kV feeder supplies electricity load for the local:

+ In 2016 – 2020 stage: new construction of 36.75 km; upgrade of the existing 161.6 km;

+ In 2021 – 2025 stage: new construction of 118 km.

- The 110 kV feeder connecting with the source (hydraulic and wind electricity):

+ In 2016 – 2020 stage: new construction of 24.5 km;

+ In 2021 – 2025 stage: new construction of 14.5 km.

b) 110 kV transformer stations:

- In 2016 – 2020 stage: new construction of 04 transformers 4x183 MVA; upgrade of the capacity of 05 5x200 MVA transformer stations;

- In 2021 – 2025 stage: new construction of 06 6x240 MVA transformer stations; upgrade of the capacity of 03 3x151 MVA transformer stations.

1.3. Medium voltage grids:

a) Lines:

- In 2016 – 2020 stage: new construction of 712 km; upgrade of 106 km;

- In 2021 – 2025 stage: new construction of 1,068 km; upgrade of 159 km.

b) Transformer stations:

- In 2016- 2020 stage: new construction of 44 MVA; upgrade of the capacity of 26 MVA;

- In 2021- 2025 stage: new construction of 66 MVA; upgrade of the capacity of 39 MVA.

2. Summary of investment capital for the planning period:

The total need of investment capital for the provincial electricity development in the 2016 - 2025 stage will be 3,916.6 billion Vietnamese dongs, including:

- 220 kV transmission networks: 752.3 billion Vietnamese dongs;

- 110 kV distribution networks: 1,564.3 billion Vietnamese dongs;

- 22 kV distribution networks: 1,600 billion Vietnamese dongs.

 

XIV. Give assessment of socio-economic effectiveness of electricity development plans of Lam Dong Province

With the conditions as calculated (according to Table 15 attached), the project will ensure financial economic effectiveness; profitable operations, and the ability of debt payment in time as agreed.

 

XV. Policy of implementation of planning

1. Implementation policy

1.1. In terms of the government’s management:

- Based on the electricity development Planning of Lam Dong Province approved by the Ministry of Trade, the People’s Committee of districts, city shall be responsible for making public to all people of the planning. Every year, detailed planning will be asked to be submitted;

- The Department of Trade will chair and cooperate with Lam Dong Electricity to report to the People’s Committee of the implemented results in the year and the electricity development estimated in following year; regularly cooperate with relevant authorities and agencies to carry out items of works and electricity plans in the planning.

1.2. Land source:

Based on the annual need of land use, the owners must register the information of the need of land use with the local competent authority so that it can be input the total annual land use in the year before submitted to the district level for approval. 

1.3. Technology and environment protection:

- The transformer station system and lines will be newly constructed to satisfy the requirements of the stipulated standards; encouragements will be created to apply modern technical standards and safety;

- Much attention will be paid to using advanced technology in the field of construction; upgrade items of construction works to focus on the supervision of the environment against any bad influence on the invironment.

- Supervise the implementation of the stipulations on environmental protection during planning.

1.4. Electricity transmission and distribution networks 

Electricity transmission and distribution networks will accord with the national electricity development Planning and the provincial electricity development Planning; and with the stipulations on capacities and locations of transformer stations as planned.

2. Financial policy:

2.1. The electricity industry: The Electricity of Viet Nam, the National Electricity Transmission Corporation, the Southern Viet Nam Electricity Coporation, and the Lam Dong Province Electricity Company will invest in the sources of networks of 220 kV, 110 kV and medium-voltage networks and meters.

2.2. For customers outside or from the industrial park, residential areas, and residential desity areas, electricity will be provided to fencing.

2.3. For hydraulic electricity projects and stations, including transformer stations and the cables connecting to the local grids invested by customers or as agreed to by customers and the electricity industry.

2.4. The low voltage grids will be used with various sources depending to the form of management and possession; part of which is invested by the local budget for remote areas.

XVI. Concusion and proposals:

1. Progress of implementation:

1.1. Preparation for the planning: will be completed in February 2017.

1.2. Approval for the planning: Quarter 3 in 2018.

1.3. Deployment for its implementation: from 2018 to the end of 2025.

2. Proposals given to relevant agencies 

2.1. For the Electricity of Viet Nam, the National Electricity Transmission Corporation, the Southern Viet Nam Electricity Coporation, and the Lam Dong Province Electricity Company:

a) The Electricity of Viet Nam and the National Electricity Transmission Corporation are requested to build 220kV transformer stations and outgoing lines after the stations as planned

b) Construct the 110kV transformer stations mentioned in the 2011 - 2015 stage to ensure the supply sources of the distribution grids, and build up the lines with 110kV ring circuits among the 220kV stations as planned, to increase the trust in electricity supply.

c) For reduction of the radius of the medium-voltage grids, the Southern Viet Nam Electricity Coporation and the Lam Dong Province Electricity Company are requested to urgently build and upgrade the 110kV stations and medium-voltage feeders as stipulated.

2. For the People’s Committee of Lam Dong Province: 

a) Reach agreements regarding setting up the directions of electric lines, locations of construction and allocations of land for these electric line projects in the province. 

b) Direct the relevant departments and agencies of the province to cooperate together for implementation of the Lam Dong’s Electricity Development Planning.

c) Give assistance in advertising the protection of electric grids and safety of high-voltage electricity corridors. Cooperate with Electricity of Viet Nam during implementation.

TABLE 1: BRIEF SUMMARY OF ESTIMATED ELECTRICITY DEMANDS

OF LAM DONG PROVINCE BY 2035

 

No

Description

2015

2020

2025

2030

2035

Growth rate (%/year)

A (GWh)

%A

A (GWh)

%A

A (GWh)

%A

A (GWh)

%A

A (GWh)

%A

2016-2020

2021 - 2025

2026-2030

2031-2035

1

Agriculture, Forestry and Aquaculture

124.60

13.57

232.90

14.49

381.40

14.28

590.70

14.30

856.00

14.12

13.33%

10.37%

9.14%

7.70%

2

Industry and Construction

208.70

22.72

388.80

24.20

722.30

27.05

1,273.20

30.80

2,025.50

33.40

13.25%

13.19%

12.00%

9.73%

3

Business, restaurant, and hotel services

49.10

5.35

86.10

5.36

142.50

5.34

225.30

5.50

333.50

5.50

11.89%

10.60%

9.59%

8.16%

4

Residential management and consumption

485.90

52.91

801.60

49.88

1.268.50

47.50

1,790.90

43.40

2,490.30

41.07

10.53%

9.61%

7.14%

6.82%

5

Other activities

50.00

5.44

97.20

6.05

167.10

6.26

249.60

6.04

358.30

5.91

14.22%

11.45%

8.36%

7.50%

6

Total amount of business electricity

918

 

1,607

 

2,682

 

4,130

 

6,064

 

11.84%

10.97%

8.96%

7.98%

7

Loss (%)

6.47

 

6,20

 

6.00

 

5.50

 

5.00

 

 

 

 

 

8

Received electricity

982

 

1.716

 

2,861

 

4,370

 

6,383

 

 

 

 

 

9

Output

 Pmax (MW)

197.80

 

323

 

524

 

772

 

1,090

 

 

 

 

 

 


TABLE 2: SUMMARY RESULTS OF ESTIMATED DEMANDS OF ELECTRICITY IN LAM DONG’ DISTRICTS IN THE 2015-2035 STAGE

No.

Location

Electricity demands (MWh)

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2030

2035

1

Da Lat City

240.4

258.1

285.0

315.5

349.2

386.5

425.60

468.66

516.07

568.28

605.5

873.4

1.196.6

2

Lac Duong District

25.9

31.3

36.3

42.1

48.8

56.52

62.24

68.53

75.47

83.10

108.98

185.5

302.9

3

Don Duong District

102.1

113.3

128.7

144.3

161.9

181.58

199.95

220.18

242.45

266.98

293.99

442.0

643.4

4

Duc Trong District

144.3

160.6

181.7

201.8

224.0

248.78

273.95

301.66

332.18

365.79

396.99

712.6

1,037.3

5

Lam Ha District

69.8

78.3

89.3

100.2

112.3

125.99

138.74

152.77

168.23

185.25

215.89

351.6

526.3

6

Dam Rong District

13.3

14.1

14.1

16.4

19.0

22.07

24.30

26.76

29.47

32.45

39.01

61.2

95.0

7

Di Linh District

68.1

73.8

79.9

90.1

101.5

114.44

126.02

138.77

152.80

168.26

187.18

286.5

421.0

8

Bao Loc City

154.7

165.0

179.7

200.7

224.1

250.23

275.54

303.42

334.12

367.92

392.39

689.2

989.9

9

Bao Lam District

39.7

41.6

44.5

49.4

54.9

61.06

67.24

74.04

81.53

89.78

100.42

194.7

332.5

10

Da Huoai District

22.4

25.1

27.8

31.4

35.5

40.12

44.18

48.65

53.57

58.99

70.97

115.3

184.5

11

Da Tẻh District

20.5

23.7

26.9

30.6

34.8

39.62

43.63

48.04

52.90

58.25

68.8

109.3

166.7

12

Cat Tien District

17.1

18.9

21.1

23.8

26.9

30.3

33.37

36.74

40.46

44.55

52.33

83.4

127.1

 

SUBTOTAL

918.3

1,003.8

1,115.0

1,257.9

1,419.2

1,608.0

1,771.0

1,950.0

2,147.0

2,364.0

2,682.0

4,105.0

6,023.0

 

TABLE 3: SUMMARY RESULTS OF ESTIMATED DEMANDS OF ELECTRICITY OUTPUT IN LAM DONG’SDISTRICTS IN THE 2015-2035 STAGE

 

No.

Locations

Output demands (MW)

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2030

2035

1

Da Lat City

43.8

49.1

55.1

61.8

69.4

77.8

84.6

91.9

99.9

108.6

118.1

169.2

231.8

2

Lac Duong District

4.9

5.9

7.0

8.4

10.0

12.0

13.5

15.2

17.1

19.2

21.6

359

54.5

3

Don Duong District

22.4

25.4

28.7

32.6

36.9

41.8

45.5

49.5

53.9

58.7

63.8

929

129.1

4

Duc Trong District

40.5

43.8

47.3

51.1

55.2

59.7

64.6

69.9

75.6

81.9

88.6

1256

171.3

5

Lam Ha District

20.6

23.7

27.2

31.3

35.9

41.3

45.4

49.8

54.7

60.1

66.1

993

142.6

6

Dam Rong District

4.5

4.8

5.1

5.5

5.8

6.2

6.9

7.6

8.5

9.5

10.5

168

25.1

7

Di Linh District

22.0

23.2

24.5

25.9

27.4

28.9

31.5

34.2

37.1

40.4

43.9

653

92.9

8

Bao Loc City

39.4

43.9

48.9

54.5

60.8

67.7

73.4

79.6

86.3

93.5

101.4

150.7

216.4

9

Bao Lam District

7.5

8.7

10.1

11.6

13.5

15.6

16.9

18.3

19.9

21.6

23.4

37.3

56.1

10

Da Huoai District

4.1

5.1

6.3

7.9

9.8

12.2

13.5

14.9

16.5

18.3

20.2

30.4

43.5

11

Da Tẻh District

5.3

6.3

7.4

8.7

10.3

12.2

13.5

14.9

16.4

18.1

20.0

30.2

42.9

12

Cat Tien District

4.0

4.7

5.6

6.6

7.9

9.3

10.3

11.4

12.6

13.9

15.3

23.0

32.9

 

Pmax đt

197.8

219.0

245.0

275.0

309.0

323.6

377.0

412.0

449.0

489.0

534.0

772.0

1,090.0

 

TABLE 4: LIST OF APPROVED OPTIONS FOR ELECTRICITY CONNECTIONS OF HYDROELECTRICITY PLANTS IN LAM DONG PROVINCE BY 2020 AND AFTER 2020 AS IN DECISION NO. 7806/QĐ-BCT DATED 19TH DECEMBER 2012 AND OTHER DECISIONS OF ELECTRICITY CONNECTIONS

 

 

No

Project

Location

Output (MW)

Connected Voltage

Number of circuit

Km

Sectional cross area

PA connections

Connection station

Note

Đến 2020

Sau 2020

 

 

 

 

 

I. In progression of construction

1

Da Dang 1

Lac Duong

14

 

22 kV

2

9

AC-120

TC 22 kV

Suoi Vang 110 kV Station

7806/QĐ-BCT 19/12/2012

2

Da Cho Mo 1

Lam Ha

9

 

22 kV

1

5,6

AC-185

Feeder 471

Duc Trong 110 kV station

7806/QĐ-BCT 19/12/2012

2

9

AC-120

TC 22 kV

Da Dang 1 Hydraulic Electric plant

3

Dai Binh

Bao Lam

15

 

22 kV

1

8

AC-150

TC 22 kV

Bao Loc 220/110 kV station

7806/QĐ-BCT 19/12/2012

4

Da Nhim Thuong 2

Lac Duong

 

10

22 kV

1

10

AC-120

22 kV Grids

Suoi Vang 110 kV station

Planning of connections being adjusted

5

Da Nhim Expansion

Don Duong

80

 

220 kV

 

 

 

 

Da Nhim Hydraulic Electric plant

428/QĐ-TTg 18/03//2016

6

An Phuoc

Lam Ha

12

 

22 kV

1

8

AC-150

TC 22 kV

Lam Ha 110 kV station

7806/QĐ-BCT 19/12/2012

7

Duc Thanh

Cat Tien

40

 

 

 

 

 

 

 

Connecting to Binh Phuoc Province

8

Sar Deung 2

Dam Rong

3

 

22 kV

1

6

AC-120

TC 22 kV

Station 6,3/22 kV Sar Deung (5 MW) Hydraulic Electric plant

Planning of connections being added

9

Da Cho Mo 2

Lam Ha

4,6

 

22 kV

1

17

AC-150

TC 22 kV

Lam Ha 110 kV station

7806/QĐ-BCT 19/12/2012

10

Tan Thuong

Di Linh

22

 

110 kV

1

18

AC-240

110 kV Grids

Line Connections on Di Linh 1-Bao Loc ĐZ 110 kV

4581/QĐ-BCT 23/11/2016

11

Dam Bri 1

Bao Lam

7,5

 

22 kV

1

15

AC-240

TC 22 kV

Busbar 22 kV Bao Lam transformer 110/22 kV

Adjustments to Planning 7806/QĐ BCT
dated
19/12/2012

II. Preparations for investment in progress

1

Da Hir

Lac Duong

 

27

110 kV

2

16

AC-240

110 kV Grids

Between columns 22-23 Da Nhim - Da Lat ĐZ 110 kV

Adjustments to Planning  7806/QĐ BCT dated 19/12/2012

2

Da Nhim Thuong 3

Lac Duong

 

8

22 kV

1

10

AC-185

TC 22 kV

Xuan Tho 110/22 kV transformer added

Adjustments to Planning  7806/QĐ BCT dated 19/12/2012

3

Da Huoai 2

Da Huoai

 

10

22 kV

1

12

AC-185

TC 22 kV

Da Huoai 110 kV station

7806/QĐ-BCT 19/12/2012

4

Dariam

(Tan Loc)

Bao Lam

 

9,5

22 kV

1

6

AC-150

TC 22 kV

Bao Loc 220 kV station

378/QĐ-BCT 08/02/2017

III. The project’s planning has been approved and decisions on investment are being considered

1

Da Sar

Lac Duong

 

10

22 kV

1

2

AC-240

TC 22 kV

Da Sar-Da Nhim Thuong 2 110 kV Station

2943/QĐ-BCT 14/7/2016

2

Da M'Rong

Dam Rong

 

3

22 kV

1

18

AC-95

TC 22 kV

Ro Men 35/22 kV station

3329/QĐ-BCT 12/8/2016

3

Cam Ly

Da Lat

 

9,6

22 kV

1

8

AC-95

TC 22 kV

Da Lat 2 110 kV station

7806/QĐ-BCT 19/12/2012

4

Bao Lam

Bao Lam

 

10

22 kV

 

 

 

 

Connecting to Dak Nong Province

Planning of connections not yet approved

5

Cam Ly Thuong

Da Lat

 

1,3

22 kV

1

0,2

AC-50

 

Connecting to 22 kV lines

Planning of connections not yet approved

6

Da Br’Len

Bao Lam

 

6,2

22 kV

1

15

AC-150

TC 2 2kV

Busbar 22 kV Bao Lam 110/22 kV station

Planning of connections not yet approved

7

Dong Nai 1

Di Linh

 

15

110 kV

2

6

AC-150

Transis Connection

Di Linh Duc Trong 110 kV Lines

Planning of connections not yet approved

8

Dak Me 3

Dam Rong

 

4

22 kV

1

0,5

AC-95

Connection

22 kV lines

Planning of connections not yet approved

9

Dak Ke Gui

Lac Duong

 

3,6

22 kV

1

4,5

AC-120

TC 22 kV

Krong No 3 Hydraulic Electricity Plant

1139/QĐ-BCT 28/3/2016

 

 

TABLE 5: ESTIMATED DEMANDS OF POWER SOURCES AND LOADS BY 2035 (IF THE PLANTS START THEIR OPERATIONS IN TIME AS AGREED)

 

No

Description

Unit

2020

2025

2030

2035

Rainy season

Dry season

Rainy season

Dry season

Rainy season

Dry season

Rainy season

Dry season

I

Sources of 220 kV transformer stations

MVA

439

439

439

439

439

439

439

439

1

Da Nhim 220 kV transformer station

MVA

126

126

126

126

126

126

126

126

2

Duc Trong 220 kV transformer station

MVA

125

125

125

125

125

125

125

125

3

Bao Loc 220 kV transformer station

MVA

188

188

188

188

188

188

188

188

II

Sources of electricity

MVA

420

168

420

168

420

168

420

168

1

110 kV generating sources

MVA

300

120

300

120

300

120

300

120

2

22 kV generating sources

MVA

120

48

120

48

120

48

120

48

3

Total capacity of sources

MVA

859

607

859

607

859

607

859

607

4

Demand of load

MW

323

323

524

524

772

772

1.091

1.091

5

Supply of loads

MVA

478

478

776

776

1.144

1.144

1.616

1.616

 

Balance (3-5) surplus (+)/ lack (-)

MVA

+380

+129

+83

-169

-285

-537

-757

-1.009

 

 

 TABLE 6: BALANCE of THE PROVINCIAL DEMANDS OF SOURCES AND LOADS BY 2035 (IN CASES OF HYDRAULIC ELECTRICITY PLANTS NOT PUTTING THEIR PLANTS INTO OPERATION IN TIME AS AGREED)

 

No

Description

Unit

2020

2025

2030

2035

Rainy season

Dry season

Rainy season

Dry season

Rainy season

Dry season

Rainy season

Dry season

I

220 kV transformer stations

MVA

439

439

439

439

439

439

439

439

1

Da Nhim 220 kV transformer

MVA

126

126

126

126

126

126

126

126

2

Duc Trong 220 kV transformer station

MVA

125

125

125

125

125

125

125

125

3

Bao Loc  220 kV transformer station

MVA

188

188

188

188

188

188

188

188

II

Sources of electricity

MVA

309

123

420

168

420

168

420

168

1

110 kV generating sources

MVA

258

103

300

120

300

120

300

120

2

22 kV generating sources

MVA

51

20

120

48

120

48

120

48

3

Total capacity of sources

MVA

749

563

859

607

859

607

859

607

4

Demand of loads

MW

323

323

524

524

772

772

1.091

1.091

5

Demand of supply

MVA

478

478

776

776

1.144

1.144

1.616

1.616

 

Balance (3-5) surplus (+)/ lack (-)

MVA

+269

+84

+83

-169

-285

-537

-757

-1.009

 


TABLE 7: QUANTITY AND TIME TO PUT THE 110KV LINES IN LAM DONG INTO OPERATION IN THE 2016-2025 STAGE WITH A CONSIDERATION TILL 2035

 

No

Description

Sectional Cross

Quy mô

Time to start operations

Existing

New construction,

or renovation

  Number of circuit

Length  (km)

 

I

110 kV Lines

 

 

 

 

 

1

Connecting to Bao Loc 2 110 kV transformer station

 

AC-240 mm2

2

0.05

2019

2

Da Teh - Cat Tien

 

AC-240 mm2

1

19

2019

3

Connecting to Da Huoai 110 kV transformer station

 

AC-240 mm2

2

0.9

2019

4

Duc Trong 2 - Lam Ha (Circuit 2)

 

AC-240 mm2

1

13.8

2020

5

Connecting to Xuan Tho 110 kV Transformer station 

 

AC-240 mm2

2

03

2020

6

Renovation of Bao Loc - Di Linh 110 kV lines

AC-185 mm2

AC-2x185 mm2

1

29.3

(2016 - 2020)

7

Renovation of Duc Trong – Da Lat 1 110 kV Lines

AC-185 mm2

AC-2x185 mm2

1

29

(2016 - 2020)

8

Renovation of Duc Trong 110 kV - 220 kV Lines

AC-185 mm2

AC-2x185 mm2

1

0.3

(2016 - 2020)

9

Renovation of Tan Phu – Da Teh 110 kV Lines

AC-240 mm2

AC-2x240 mm2

1

31

(2016-2020)

10

Upgrading the Bao Loc Madaguoi 110 kV Lines from one circuit to two circuits

 

AC-240 mm2

2

60

(2016 - 2020)

11

Upgrading the Madaguoi-Tan Phu 110 kV Lines from 1 to 2 circuits.

 

AC-240 mm2

2

12

(2016 - 2020)

12

Connecting to Da Lat 3 110 kV transformer station

 

AC-240 mm2

2

04

2025

13

Connecting to Phu Binh 110 kV transformer station

 

AC-240 mm2

2

03

2021

14

Connecting to Don Duong 2 110 kV transformer station

 

AC-185 mm2

2

01

2025

15

Duc Trong 2 – Don Duong 2

 

AC-300 mm2

1

20

2025

16

Krong No 2 - Dam Rong

 

AC-240 mm2

1

29

2022

17

Connecting to Da Loan 110 kV transformer station

 

AC-240 mm2

2

28

2021

18

Connecting to Hoa Ninh 110 kV transformer station

 

AC-300 mm2

2

03

2023

19

Lam Ha 110 kV transformer station  connected to Da Lat 2-Suoi Vang Lines

 

AC-240 mm2

2

30

2025

20

Connecting the Lam Ha 110 kV  transformer station to Lam Ha 2 Lam Ha – Suoi Vang 110 kV station

 

AC-240 mm2

4

02

(2026 - 2030)

21

Connecting Bao Loc 3 110 kV transformer station to Bao Lam 110 kV – Bao Loc 220 kV

 

AC-300 mm2

2

7.5

(2026 - 2030)

22

Bao Loc - Bao Lam Circuit 2

 

AC-300 mm2

1

6.5

(2026 - 2030)

23

Connecting the 110kV busbar of Da Lat 2 220 kV station to 2 Da Lat 1-Da Lat 2 110 kV Lines and Xuan Tho-Suoi Vang 110 kV Line

 

AC-240 mm2

4

4

(2031 - 2035)

II

Hydraulic electricity plant

 

 

 

 

 

1

Connecting to Tan Thuong Hydraulic Electricity Plant

 

AC-300 mm2

2

18

(2016 - 2020)

2

Connecting to Da Dang 3 Hydraulic Electricity Plant

 

AC-240 mm2

2

6.5

(2016 - 2020)

3

Connecting to Da Sar-Da Nhim Thuong 2 Hydraulic Electricity Plant

 

AC-240 mm2

1

11

(2021 - 2025)

4

Connecting to Da Hir Hydraulic Electricity Plant

 

AC-240 mm2

2

2

(2021 -2025)

III

Wind power plant

 

 

 

 

 

1

Connecting to Cau Dat wind power plant 

 

AC-185 mm2

2

1.5

(2021 - 2025)

 

TABLE 8: QUANTITY AND TIME TO PUT THE 110KV TRANSFORMER STATIONS IN LAM DONG INTO OPERATION IN THE 2016-2020 STAGE

 

No

Transformers

Type

Existing

2016

2017

2018

2019

2020

Scale

(MVA)

Voltage

(kV)

Scale

(MVA)

Voltage

(kV)

Scale

(MVA)

Voltage

(kV)

Scale

(MVA)

Voltage

(kV)

Scale

(MVA)

Voltage

(kV)

Scale

(MVA)

Voltage

(kV)

I

New contruction

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Xuan Tho

T1

 

 

 

 

 

 

 

 

 

 

40

110/22

2

Bao Loc 2

T1

 

 

 

 

 

 

 

 

63

110/22

 

 

3

Da Huoai

T1

 

 

 

 

 

 

 

 

40

110/22

 

 

4

Cat Tien

T1

 

 

 

 

 

 

 

 

40

110/22

 

 

II

Renovation and upgrading of capacity

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Da Lat 1

T1

40

110/22

 

 

 

 

 

 

 

 

 

 

 

 

T2

 

 

 

 

 

 

40

110/22

 

 

 

 

2

Da Lat 2

T1

40

110/22

 

 

 

 

 

 

 

 

 

 

 

 

T2