THE TRES AMIGAS SUPERSTATION - PowerPoint Presentation

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THE TRES AMIGAS SUPERSTATION

WORLD WIDE EMERGING DEVELOPMENT IN HVDC 2013

UNITING THE NATION’S ELECTRIC POWER GRID

Common Interconnected AC System Problems

Long Distance TransmissionLine lossesSystem Voltage Stability/LevelsReactive Power LoadingSteady state Transient Stability Subsynchronous Oscillations

Latency issues (ie Spinning Reserves)Inductive and Capacitive limitation factors

InterconnectionsUncontrolled Load flow problems and bottlenecksCongestion IssuesInter Area loop flowCascading BlackoutsOscillation Stability

Frequency control

Voltage Stability

Physical interactions between power systems

Diminishing Returns with large interconnected AC Systems

Common Interconnected AC System Problems

High Cost of InterconnectionsReliability Costs: NERC, RC, RelayingN-1 criteria often creates underutilization of transmission linesComplex coordinating arrangements (RTOs, IA, JOAs, etc.)Need for sophisticated and costly system impact studiesParticipation agreement complications with multiple impacted entities

Regional/Subregional perturbations/phenomena difficult and costly to analyze and manage Deterministic planning practices do not capture the true economic value of transmission additions/upgrades

China

Plans for Point to Point HVDC

“a pan-European transmission

network facilitating the integration

of

large-scale renewable

energy and the balancing

and transportation

of electricity, with the

aim of

improving the European market”.

Friends of the

Super Grid

“Sun

and wind: SEMCs have limitless wind and solar energy potential. The MSP, launched in November 2008, aims to install 20 Gigawatts (GW) of new generation capacity by 2020.”

MedGrid

– Opening New lines for Sustainable Electicity

Under Planning:

Colombia – Panama

600 MW – 400 kV

Under Planning:

Central - North

1000 MW – 500 kV

Under Planning:

Central - South

2000 MW – 500 kV

Under Planning:

Chile - Argentina

2000 MW – 500 kV

South American HVDC projects in operation, construction or planned

Under Planning

Manaus -

Roraima

–

Venezuela

600 MW – 400 kV

Under Planning:

B Monte Tapajos

2x 4000 MW 800 kV

Under Construction:

Rio Madeira

2x 3150 MW 600 kV

Under Construction:

Melo

500 MW

BtB

Under Planning:

Brazil – Uruguay

500 MW

BtB

In operation:

Itaipu

2x 3150 MW 600 kV

In

Oeperation

:

Garabi

2x 1000 MW

BtB

In

Oeperation

:

Rivera

70 MW

BtB

"

Supergrid" is the future electricity system that will enable Europe to undertake a once-off transition to sustainability.“The full significance of a switchable HVDC innovation has not yet been appreciated by policy makers or by the business community. It is clear that a network incorporating a HVDC grid with the redundancy and reliability of current AC grids is now a reality and that the limits of what is technologically possible have been greatly expanded.”

“HVDC technology will open markets, strengthen security of supply and create another global opportunity for European companies to export sustainable energy technology. The technology underpinning the

Supergrid will give competitive advantage to the companies involved with its specification and design. This type of integrated AC/DC grid will be a template for what will be needed in other global markets including the US and China.”

Friends of the Super Grid Quote:

Alstom

Grid HVDC MaxSine Technology

Voltage Sourced Converter (VSC) technology

Modular multi-level converter designControl of real and reactive power flow into AC gridsHarmonic free output voltage

Ideal for use on weak AC grids

+ V

- V

+ V

- V

= chain link module

VSC HVDC scheme

Folded Back-to-Back Convertor Layout

Provides for AC and DC HTS bus

interconnections

DC Bus Connections

A

C Bus Connections

First Phase Scope of Construction

Design

Products & Services

- How Will Customers Use TA Services?

Products & Services

- Operations Services

Tres

Amigas Operations can be mapped against a generic electricity market structure, illustrating TA Operations core functions – system operations, spot market operations and information services. Tres

Amigas will most likely engage an established

clearinghouse to support forward trading and clearing.

Products &

Services - Transmission

Transmission

service will be sold in blocks ranging from one to 20 years in duration, as well as on a seasonal, monthly, weekly, daily and hourly basis.

Three

distinct mechanisms will be used to sell transmission service:

Negotiated, long-term ‘Anchor Tenant Agreements’

Competitive ‘open seasons’, mostly for annual service, but also including an initial ‘Anchor Tenant Auction’ for terms up to 20

years.

Web-based real-time portal, for non-firm and shorter-term firm capacity, with a duration less than one year (e.g. monthly, weekly, daily, hourly

).

Additionally, the real-time portal will facilitate a secondary market for Tres Amigas customers to trade transmission capacity purchased previously

.

Anchor Tenant Agreements

Spot Sales

(via Portal)

FIRM SALES

NON-FIRM SALES

Up to

50% of firm capacity

remaining available firm capacity after Anchor Tenant Agreements

remaining

available firm capacity

after Anchor Tennant Agreements and Anchor Tennant Auction

Any available long-term firm capacity

Additional short-term firm capacity

All non-firm capacity

Secondary trading of previously purchased capacity

Open Season

AT Auction

Annual Auction

20 years

Annual

Monthly

Daily

Hourly

Startup:

research, regulatory and local filings, ROW, preliminary engineering, environmental, economics and business plan.

Startup

8M

Preconstruction

12M

Phase I

500 M

Preconstruction:

detailed engineering, vendor selection/contracts, product development, additional filings and detailed business plans.

Phase I:

construction & operations, East/West transmission node, including HVDC converters, buildings and business infrastructure, EMS Operations

Funding – Tres Amigas Merchant Transmission

Unlike traditional

transmission facilities, merchant transmission project owners

assume all market

risk

. Tres Amigas has been successful in receiving significant capital through investors and private placements.

Phase II – III

1.5B

Phase II-III:

construction

& operations, Texas node, additional HVDC converters, facilities, and business infrastructure

2013

2010

2012

2015

Concept

2M

2008

Tres Amigas SuperStation….

Uniting the Electric Grid