Tim Flanagan

Penn State Conference

Liquefied Natural Gas

(LNG)

PECO Specifics

2

Combination Utility – Electric & Gas

• Electric in Philadelphia & Surrounding

Suburbs

• Gas in Philadelphia Suburbs

Bucks, Chester, Delaware,

Montgomery, & Lancaster Counties

Gas currently approximately 518,000

customers.

Approximately 6700 miles of gas main

PECO LNG Facility

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LNG Plant commissioned in 1972

Located in West Conshohocken

LNG tank is 1.2 BCF (15 Million

Gallons LNG)

Designed for peak shaving operations

Control room on site – manned 24 X 7

Feeds - Transco & TETCO

Located in West Consohocken

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PECO LNG Facility - Liquefaction

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Liquefaction – Turbo expander operation

driven by gas combustion turbine – capable

of 6 million SCF/Day

Gas supplied from either TETCO or

TRANSCO – gate stations on site.

Typical Liquefaction timeframe – April –

October depending upon how much used

Goal is to have LNG tank full for internal

winter readiness date of November 1st.

PECO LNG Facility - Vaporization

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5 LNG pumps (built-in redundancy)

5 individual vaporizers in water bath heat

exchanger (built-in redundancy)

Capable of vaporizing 312 million SCF/Day

Vaporization operations coordinated with

Gas Control

Increase normal staffing when vaporization

in progress.

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LNG Control Room

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LNG Control Room

10 LNG Control Room

Security – Cameras & Monitors

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12 Security - Fencing

13 Security

Fixed Fire Protection

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Cleansing Cycles

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Combustion Turbine Building

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Turbine, Nitrogen, Cold Box

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Pipe Train & LNG Tank

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LNG Pumps

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Vaporizers

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Vaporizers

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LNG Fill station

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Portable Vaporizer

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24 Portable Vaporizer

25 Portable Vaporizer

Pump Skip

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Pump Skid

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Pump Skip Connected to Vaporizer

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LNG Trailer

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LNG Containment at Pump Trailer

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LNG into Vaporizer

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Vaporized LNG into Distribution System

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33 Monitoring Systems

Monitoring Systems

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Questions