Upload
dorothy-flynn
View
216
Download
0
Tags:
Embed Size (px)
Citation preview
THE TRES AMIGAS SUPERSTATION
Project Overview and Status Report
to ERCOT Regional Planning Group
May 21, 2013
UNITING THE NATION’S ELECTRIC POWER GRID
2
Tres Amigas Presentation Team
David Stidham, COO and Senior VP, Tres Amigas
Ziad Alawyan, CEO, ZGlobal and member of Board of Directors, Tres Amigas (by remote)
Andre Canelhas, Managing Director, HVDC Solutions LLP
Pat Wilkins, ERCOT Representative, Tres Amigas
3
Presentation Agenda
I. Tres Amigas Background
II. Voltage Source Converter Technology Overview
III. VSC Capabilities and Grid Benefits
IV. Tres Amigas Project Development Aspects
44
Background – Investment and Milestone History
20092009 2011201120102010 20122012
New InvestorsNew Investors
Key Milestones
Key Milestones
Energy IT Optimization Inc.
Attracted TA’s first strategic investment from American Superconductor
Signed the option to enter into a 99-year lease with the State of New Mexico
Signed 99-year lease for 16,000 acres
Received FERC approval to sell transmission at negotiated rates
Entered into a supply Agreement for VSCs with Alstom
Received the first Series-B investment from Hennepin Ventures
Legislation passed in State of New Mexico exempting Tres Amigas from Gross Receipts Tax
Received the second Series-B investment from Mitsui & Co.
5
Background – Project Strategically Located
Tres Amigas Is Ideally Situated in Eastern New Mexico Near the Borders of CO, OK and TX Serving as a Three-Way Interconnection of
WECC, Eastern and ERCOT
6
Background – Phased Development
WECC750 MW
SPP750 MW
ERCOT0 MW
WECC750 MW
SPP2250 MW
ERCOT1500 MW
WECC750 MW
SPP2250 MW
ERCOT1500 MW
Phase II (a) Phase II (b)Phase I
• 750 MW AC line
• 2 components:
• Tres Amigas Substation to Public Service of New Mexico’s Blackwater Substation (TA to WECC)
• Tres Amigas will be a Balancing Authority in WECC
• Tres Amigas Substation to SPS’s Tolk Substation (TA to SPP)
• Construction to begin in 2Q13 and completed by 2Q16
• 1500 MW merchant AC Line
• Line will run from Tres Amigas to ERCOT with interconnection at a Panhandle CREZ line point to be determined by ERCOT
• DC conversion will occur either at ERCOT interconnection point or Tres Amigas - TBD
• Not synchronous between SPP and ERCOT
• Construction to be begin pending regulatory approvals with COD mid 2017
• Line runs from Tres Amigas to the Potter Substation
• Configuration TBD
7
Background - Regulatory History and Status
March, 2010 - FERC issued approval of negotiated rate authority (not cost-based) to Tres Amigas to sell transmission service
October 7, 2012 – Phase I Interconnection Agreement with Public Service of New Mexico approved by FERC
April 8, 2013 – Phase I Interconnection Agreement with SPP and SPS/Xcel Energy approved by FERC
8
Background – Proposed Transmission Routing
Line constructed for single circuit operation in Phase
1 and expanded to double-circuit in Phase 2
Phase 1
Phase 2
Phase 2
Phase 1 & 2
Phase 2
9
VSC Technology – How Does It Work
10
VSC Technology - Multi-Level Converter
Output Voltage
Multi-level VSC
+Steady DC Voltage Input
11
VSC Technology - Modular Multi-Level Converter (MMC)
- ½ Vdc
+ ½ Vdc
iac
Iac/2
Iac/2
Idc
Idc
Idc/3Vs Vc
VcVs
11
12
VSC and Super Station Capabilities
Normal Active and Reactive power exchange determined and controlled independently;
Active and reactive power controlled electronically accurate in real time to the micro-second;
Fire-wall for system disturbances; Emergency power control and power modulation as well as run-back
programed as prescribed by network planning studies; Voltage control; Frequency control; Damping of electro-mechanical oscillations;
Tres Amigas will offer robust and reliable grid solutions to increase overall reliability and efficiency.
12
13
VSC and Superstation Grid Benefits
Black-start and grid restoration; Strategic operation supported by powerful simulation center with state of the
art tools and capability to adapt control algorithms as needed; Interaction with transmission owners with information exchange process
designed to capture, study and offer solutions to serve grid needs towards efficiency and reliability;
Competent people being developed and trained by working hands-on throughout system development
Tres Amigas will offer ancillary and grid support services to increase overall reliability.
13
14
Project Development - ERCOT IA Process Initial Steps
April 2, 2013 – Tres Amigas team briefed PUCT commissioners and staff on project development and status
April 8, 2013- TA submitted notification to ERCOT as specified under Process for Evaluating Transmission Projects Related to Asynchronous Ties
April 12, 2013 – ERCOT notified RPG of TA IA notification and designated Sharyland as lead TSP for system impact analysis
May 15, 2013 – Reliability study scoping meeting among Sharyland, ERCOT, Cross Texas Transmission and Tres Amigas
15
Project Development - Interconnection Reconfiguration
Based on concerns expressed by the PUCT commissioners, TA began an evaluation of a reconfiguration of its ERCOT interconnection:
–Installation of two VSCs at Hereford Windmill location
–Two separate DC lines from Windmill to Tres Amigas main station in New Mexico
–Initiating RFP processes for VSCs and DC line construction
16
WECC750 MW
SPP750 MW
ERCOT0 MW
Phase 1
WECC750 MW
SPP2250 MW
ERCOT1500 MW
Phase 2 (a)
2 x 750 MW VSC Converters back-to-back at Tres Amigas Super Station
2 x 750 MW VSC Converter at Tres Amigas Super Station2 x 750 MW VSC Converters at Hereford, TX
AC ACDC 1 Station
= =
=
=
AC
DCStation 2
AC
Station 1 =
=
= =
16
Project Development - Two Types of Interconnection
The possibility to interconnect the converters by a super-node remains available
17
Project Development - Phase 2
18
Project Development - Timeline
2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
Phase II (a)
Incremental Capacity: 1,500 MW for ERCOT and SPP
Phase II (b)
Incremental Capacity: 2,250 MW for ERCOT and SPP
Phase I
Incremental Capacity: 750MW for WECC and SPP
OperationConstruction
OperationConstruction
OperationConstruction
19
More information available at www.tresamigasllc.com
20
Tres Amigas SuperStation….
Uniting the Electric Grid