Flexible Transmission Expansion in the Chilean Electricity ...

www.coordinadorelectrico.cl

Juan Carlos AranedaTransmission Planning Manager

Flexible Transmission Expansion in the

Chilean Electricity Market



• Transmission Planning Process

• Long Term Vision in Transmission

• New Transmission Planning Criteria

Agenda

• SIC-SING Interconnection and the National Power System

• Flexibility in Transmission Expansion


We are an independent technical public-service

organization that coordinates the operation of the

national electric grid, ensuring a secure, reliable

and economic energy supply, and guaranteeing

open access to the transmission systems

Coordinador Eléctrico Nacional

14


S/E

KIMALS/E

NUEVA

CARDONESS/E

NUEVA

MAITENCILLO

S/E

LOS CHANGOSS/E

POLPAICO

S/E

CUMBRE

SIC-SING INTERCONNECTION PROJECT

140 km 400 km 189 km 135 km 408 km

S/E

NUEVA

PAN DE AZUCAR

212 km

Com.2017 Com.2017-2018Com.2020

500 kV Transmission linesCom.2017KAPATUR 220 kV

S/E

KAPATUR


S/E TEN -GIS (TEN)

S/E Kapatur (STN/Saesa)

G

G

G

G

G

S/E Angamos(Gener)

S/E Kelar(Tamakaya)

S/E Cumbres(TEN) S/E Nueva

Cardones(Interchile)

S/E Cardones(Transelec)

S/E Kimal (SATT/Saesa)

S/E Nueva Maitencillo(Interchile)

S/E Nueva Pan de Azúcar

(Interchile)

S/E Los Changos (TEN)

GANG1

Kelar

CTM3 G

CTM3 V

IEM

LT 2x220 kV Kelar Kapatur(Tamakaya)

LT 2x220 kV Angamos Kapatur(Gener)

LT 2

x22

0 k

V L

os

Ch

ango

s K

apat

ur

(Tra

nse

lec)

A S/E Laberinto

A S/E O’Higgins

LT 2x500 kV Los Changos Cumbres(TEN)

LT 2x220 kV TEN Los Changos(TEN)

LT 2x500 kV Cumbres Nueva Cardones(TEN)

LT 2x500 kV Nueva Cardones Nueva Maitencillo(Interchile)

LT 2x220 kV Cardones Nueva Cardones(Interchile)

LT 2x500 kV Nueva Pan de Azúcar Polpaico

(Interchile)

LT 2x500 kV Nueva Maitencillo Nueva Pan de Azúcar

(Interchile)

LT 2x500 kV Los Changos Kimal(Transelec)

Proyectos TEN

Proyectos Transelec

Proyectos Interchile

Proyectos Saesa

Instalaciones Existentes

Proyectos Engie

S/E Polpaico(Transelec)

S/E Diego de Almagro

(Transelec)

S/E Nueva Diego de Almagro

(Celeo Redes)

LT 2x220 kV Cumbres Nueva Diego de Almagro

(Celeo Redes)

Proyectos Celeo Redes

ANG2

S/E Pan de Azúcar

(Transelec)S/E

Maitencillo(Transelec)

GCTM2

SIC-SING INTERCONNECTION PROJECT


Installed Capacity: 24,000 MWPeak Demand: 11,000 MW

NATIONAL POWER SYSTEM in 2018

Fuente: Comisión Nacional de Energía

7.097MW29%

4.859MW20%

3.733MW15%

3.762MW16%

2.789MW 12%

1.333MW6%

516MW2%

Hidráulica Carbón Gas

Diesel/Fuel oil Solar Eólica

Otros

NPS3,100 km


Transmission Planning and Delivery (from 2017 on)

Coordinator proposes

Transmission Projects to CNE

Long-Term Energy Planning Process(Developed every 5 years by Ministry of Energy)

Scenarios

CNE Transmission Planning Study and

Evaluation

Experts Panel resolves

discrepancies

Enactment of Transmission

Expansion Decree

Transmission Projects Tendering

(National and Zonal)

ANNUAL TRANSMISSION PLANNING PROCESS

Upgrade and Expansion projectstendered by the Coordinator(National and Zonal transmission)

Market agents proposetransmission projects to CNE


Phase 2: Analysis of

expansion requirements

Demand Forecasting

Generation Scenarios

Diagnosis of use of the

Transmission System

Projects conceptual engineering

• Equipment selection

• Unilinear diagrams

• Plant diagrams

• Project schedule

• Investment valuation

Project economic

evaluation:

With and without the

project

Definition of alternative

projects

Power system studies

Phase 1: Projection of main

variables

Transmission Planning Methodology

Transmission Expansion projects Proposal

Phase 3: Evaluation and project definition


Base Scenario

1045 MW

3155 MW

700 MW

360 MW

219 MW

720 MW

913 MW

376 MW

40 MW

70 MW

949 MW

613 MW

40 MW

2255 MW

700 MW

360 MW

1953 MW

376 MW

40 MW

70 MW

1280 MW

613 MW

40 MW

118 MW

681 MW

1442 MW

VIII RegiónScenario

PozoAlmonteScenario

445 MW

24 MW

1045 MW

445 MW

219 MW

720 MW

24 MW

2929 MW

438 MW

250 MW

118 MW

681 MW

1326 MW

493 MW

587 MW1442 MW

TaltalScenario

5050 MW

1811 MW

48 MW

375 MW

5646 MW

711 MW

48 MW

3429 MW

438 MW

250 MW

1326 MW

493 MW

587 MW

375 MW

Solar

Wind

Hydro

Thermal

Geothermal

Biomass

Generation Scenarios


• Minimize supply risks, considering events, such as:

➢ cost increase or unavailability of fuels

➢ delays or unavailability of energy infrastructure

➢ Natural disasters or extreme hydrology conditions

• Promote the offer and facilitate competition in order to supply

consumers at minimum price

• Economically efficient and necessary projects in the different

energy scenarios

• Modification of existing transmission facilities in an efficient way

Transmission planning must include roominess and redundancies in

order to incorporate all previous criteria

New Transmission Planning Criteria


1. Adequacy:

➢ CAPEX < NPV[ Δ(OPEX+CENS)]

2. Security of Service: N-k criteria

➢ Resilience: resist LPHI events

3. Competition: Open Access to the Grid

4. Sustainability: Efficient use of Territory

5. Robustness: Long Term Vision and

Flexibility

New Transmission Planning Criteria


Flexible Transmission:

Robust Planning

Technology

Smart Grid

Flexibility in Transmission Expansion


Flexible Transmission: Robust Planning

▪ Anticipatory planning: make decisions under uncertainties

▪ Stripes for new transmission lines with Strategic Environmental Evaluation

▪ Roominess in the design of new transmission infrastructure

▪ Upgrade and uprate of existing lines and substations

▪ Zonal transmission:

• Access to cities and towns

• Shared services infrastructure

• Distributed generation


Flexible Transmission: Technology

▪ Transmission support associated to Variable Renewable Energy:

• Size and location of reserves

• Inertia constraints

• Battery Energy Storage Systems – BESS:

➢ Expansion deferral

➢ Congestion relief

▪ Flexible AC Transmission Systems: FACTS

▪ HVDC:

• Long lines with LCC vs VSC

• Multi-terminal option

• Lines vs Cables

• Back-to-Back Converters


FACTS: Reactive power compensation

SVC Domeyko–50 / +120 MVAr

SVC Plus Diego de Almagro–100 / +140 MVAr

SVC Cardones–60 / +100 MVArSVC Maitencillo

–28 / +24 MVAr

SVC 1 Pan de Azúcar–28 / +24 MVAr

SVC 2 Pan de Azúcar–28 / +24 MVAr

SVC Polpaico–65 / +100 MVAr

STATCOM Cerro Navia–65 / +140 MVAr

SVC Puerto Montt–40 / +70 MVAr

Status: In operation



2017 Recommended project (under tendering)

NUEVA PAN DE AZÚCAR 220

2x100 MVAr

SVC +50/-150 MVAr

75 MVAr

75 MVAr

212 km

NUEVA MAITENCILLO 500 NUEVA PAN DE AZÚCAR 500 POLPAICO 500

75 MVAr

75 MVAr

175 MVAr

175 MVAr

175 MVAr

175 MVAr

54%

54%

53/2%

53/2%

53/2%

53/2%

408 km

Obras propuesta actual

TCR 200 MVArinductivos

FC 5° armónica

FC 7° armónica

≈ 50 MVAr capacitivos

Proposal: - Modification of series compensation- Shunt reactors- Reactive power variable compensation

- Overvoltage

- Voltage variability



Recommended project - ALTERNATIVE

- Overvoltage

- Voltage variability

Proposal: - Modification of series compensation- Shunt reactors- Reactive power variable compensation

NUEVA PAN DE AZÚCAR 220

2x100 MVAr

75 MVAr

75 MVAr

212 km

NUEVA MAITENCILLO 500 NUEVA PAN DE AZÚCAR 500 POLPAICO 500

75 MVAr

75 MVAr

175 MVAr

175 MVAr

175 MVAr

175 MVAr

54%

54%

53/2%

53/2%

53/2%

53/2%

408 km

Proposed project

STATCOM +/- 100 MVAr

MSR 50 MVAr

STATCOM + MSR +100/-150 MVAr


FACTS: Phase-Shifting Transformers

Cerro Navia SubstationT1: 350 MVA – 220/220 kVT2: 350 MVA – 220/220 kV

Tocopilla SubstationT1: 100 MVA – 110/110 kVT2: 100 MVA – 110/110 kV

Objective: Control power flows in specific lines of the power system.


FACTS: Fixed Series Compensation

1x345 kV Andes-SaltaAndes: 36% (408 km)

2x500 kV Los Changos-CumbreLos Changos: 65/2% (400 km)Cumbre: 65/2% (400 km)

2x500 kV Cumbre-Nueva CardonesCumbre: 55% (189 km)

2x500 kV Nueva Maitencillo-Nueva Pan de AzúcarNueva Pan de Azúcar: 55% (212 km)

2x500 kV Nueva Pan de Azúcar-PolpaicoNueva Pan de Azúcar: 53% (408 km)

1x500 kV Ancoa-Alto Jahuel C1Ancoa: 56% (241 km)

1x500 kV Ancoa-Alto Jahuel C2Ancoa: 58% (257 km)

2x500 kV Ancoa-Alto Jahuel C3 and C4Ancoa: 44% (256 km)

1x500 kV Charrúa-Ancoa C1Ancoa: 50% (183 km)

1x500 kV Charrúa-Ancoa C2Ancoa: 53% (196 km)

2x220 kV Colbún-La CandelariaLa Candelaria: 60% (214 km)


Flexible Transmission: Smart Grid

System Monitoring, Control and Protection – Conceptual View

WAMPAC: Wide Area Monitoring, Protection and ControlDLR: Dynamic Line Rating / PMU: Phasor Measurement UnitSIPS: System Integrity Protection Scheme / RAS: Remedial Action SchemeIED: Intelligent Electronic Device

Dynamic and Static Line Capacity


Long Term Vision in TransmissionParinacota

Cóndores

Tarapacá

Lagunas

Collahuasi

Encuentro

Kimal

Los Changos

Kapatur

Kimal

Pozo Almonte

Pozo Almonte

500 kV220 kVProjects in construction

Alternative

N.O.

N.O.

N.O.: Normallly Open

G

500 kV220 kVProposed projectCommon alternative Additional alternative 1

Additional alternative 2

Andes

TEN GIS

Los Changos

Cumbre

Nueva Diego de Almagro

Kapatur

Nueva Taltal

Diego de Almagro

Paposo

Carrera Pinto

Kimal

Generation Pole

Cumbre

Paposo

Diego de Almagro

Nueva Diego de Almagro

Taltal

Los Changos

Carrera Pinto

San Andrés

Cardones

Maitencillo

Punta Colorada

Pan de Azúcar

Don Goyo

La CebadaPunta Sierra

Los Vilos

Nogales

Polpaico

Quillota

Nueva Cardones

Nueva Maitencillo

Nueva Pan de Azúcar

500 kV220 kVTaltal project

Alternative 1 Alternative 2

Generation pole

(Polpaico-Lo Aguirre-Other bus)

x2

x2

x2

x2

Las Palmas


x2

x2


Long Term Vision in Transmission

Alto Jahuel

Ancoa

Charrúa

Entre Ríos 500 kV 220 kV

Alternative 1 Alternative 2

Possible international interconnection

Polpaico

Lo AguirreCerro Navia

Chena

Los Almendros

El Salto

Alto Jahuel

Ancoa

Charrúa

Entre Ríos

Polpaico

Lo Aguirre

Cerro Navia

Chena

G


El Salto

Gran Mendoza

Argentina

Gran Mendoza

Argentina

(Los Almendros, La Florida, other bus)

Los Almendros

(Los Almendros, La Florida, other bus)

C1 C2 C3 C4

C1 C2 C3 C4

C2 C3 C4

C2 C3 C4

C+ C-


Long Term Vision in Transmission

Charrúa

Mulchén

Cautín

Ciruelos

Valdivia

Rahue

Tineo

Pichirropulli

Puerto Montt

Río Malleco

Melipulli

500 kV 220 kV

Alternative

Nueva Ancud


Coordinador face current challenges associated to:

▪ the interconnection of SIC and SING to create a unique (long)

national power system (3,100 km)

▪ implementing the new transmission planning and delivery

processes

▪ developing and applying the new transmission planning

criteria

Flexibility in transmission expansion is reflected via robust

planning, technologies and smart grids

In Summary


Juan Carlos AranedaTransmission Planning Manager

Flexible Transmission Expansion in the

Chilean Electricity Market


Flexible Transmission Expansion in the Chilean Electricity ...

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