TPGS Project Details




Project Details

Type of Facility: Underground Dome Salt Cavern Storage
 
Location: Markham, Texas (Matagorda & Wharton County)
 
Service Offered: High Performance Gas Storage and Hub Services
 
Planned Working Gas Capacity: 47.9 Bcf
 
In-Service DateOctober 1, 2008

Bi-Directional Pipeline Interconnections In Operation:
10 
Tennessee
Gas                           TETCO
Transco                                         Enterprise Texas (Valero)
Florida
Gas                                  HPL
NGPL                                            Enterprise Intrastate (Channel)
KM Tejas                                      Central Texas Gathering System 

Potential Future Interconnects:5
Crosstex
KM Texas 
Gulf South
Trunkline
Dow
 
Tariff Services:
  • Firm and Interruptible Storage Service
  • Firm and Interruptible Park and Loan Service
  • No Notice Storage Service
  • Interruptible Hourly Balancing 
  • Wheeling
Summary:
Tres Palacios Gas Storage LLC is in operations with the first two of four salt caverns developed for use as a high performance natural gas storage and for hub services. Tres Palacios Gas Storage LLC is currently in operations with over 27 Bcf of working gas capacity 12 BCF of gas storage. Once the incremental two caverns have been completed, the working gas capacity of the facility will be 47.9 Bcf.
 
The storage facility, located in Matagorda County, Texas is utilizing existing underground salt caverns on the Markham Dome. The current facility design is permitted for up to 48,000 HP of compression, providing customers commercial flexibility, with a maximum daily withdrawal rate of 2.5 Bcf and a maximum daily injection rate of 1 Bcf.
 
The header system includes 41.72 miles of looped bi-directional pipeline and is connected to ten interstate and intrastate pipeline systems.
 
Given that the company is pipeline and market indifferent, Tres Palacios storage customers have use of substantial pipeline header flexibility and interconnectivity within their storage rate.
 
As part of its FERC authorization, Tres Palacios has the authority to charge market-based rates for all storage, park-and-loan, wheeling and other hub services. Tres Palacios is the first Texas independent storage operator to be fully regulated by the FERC.