Large Scale Portable LNG Response Santa Cruz/Felton 2015

Austin A. Hastings, P.E., Senior Manager

LNG/CNG Engineering and Operations

Pacific Gas & Electric Company

In Case of Emergency

• Call 911 and Meet First Responders: Austin

• Sweep Room, Gathering Area, Roster Check: TC

• CPR Certified?

• Main Gathering Area: Front Gate

• Alternate Gathering Area: Left from tour trailer through transfer area

Page 2

Agenda

Comparison of LNG and CNG

Overview of LNG/CNG Eng & Ops Department

Portable LNG/CNG equipment

Background on the Project

LNG Planning and Logistics Process

Safety on Your Tour

Page 3

Comparison of LNG and CNG

LNG CNG

Pressures up to (psig): 200 4,500

Temperatures (F): -260F Ambient

Odorized? NO YES

How does PG&E Acquire It? From Third Parties At PG&E CNG Stations

Volume Expansion Ratio 600:1 275:1

Why Liquefy or Compress? Higher Energy Density

Advantages when used in a

Portable Application

Higher Flowrates Easier to Site

Higher Volumes Can be Unmanned

Higher Energy Density Refill at PG&E Facilities

Page 4

LNG/CNG Engineering and Operations

Created September 2011

Recognition that:

• Assets were treated differently than 49 CFR Part 192 assets

• Small equipment base

Many functions related to these assets in one compact department: Operations, Project Engineering, Facility Engineering, Standards Development, Maintenance Planning, Maintenance, Inspection, Budget Management (Capital, Expense, Distribution, Transmission), Customer Support (Third Party CNG vehicles), Training

51 Employees

Employee and Hiring Hall Make Up:

• 21 Technicians

• 6 Clerical and Material

• 14 Engineering/Technical

• 4 Portable Response Coordinators

• 6 Supervisory Page 5

LNG/CNG E&O Asset Base

33 CNG Fueling Stations

• Provide fuel for PG&E CNG vehicles (e.g., passenger cars, fleet trucks)

• Provide fuel for third party fleet operators and individual passenger vehicles

• Maintain a PG&E presence in the CNG “green vehicle” business

218 Pieces of Portable LNG and CNG Equipment

• Provide natural gas supplies to offset or supplement pipeline flowing supplies for

o Planned outages to reduce pipeline construction, maintenance and operations costs and complexity

o Winter peak load shaving

o Unplanned outages (emergencies)

Page 6

A Handsome Group!

Page 7

Portable Equipment Capabilities and Quantities

2010 2015 Storage

Volume

Capacity

Flowrate

Capacity Application

Example

LNG Tankers 3 10 up to 900,000 scf

5,000+ Residential,

Large Commercial LNG Fired Vaporizers 3 7 500,000 scfh

LNG Ambient Vaporizers 0 4 200,000 scfh

CNG Tube Trailers 5 24 up to 150,000 scf "Large CNG" - Up to

2,000 Residential,

Medium Commercial CNG Injection Trailers 5 16 up to 50,000

scfh

CNG Gaps 2 19 8,500 scf 2,000 scfh "Medium CNG" - Up

to 20 Residential,

Small Commercial

CNG Modules 0 90 2,200 scf 500 scfh "Small CNG" - Up to 3

Residential CNG Bottle Trailers 4 26 1,800 scf 500 scfh

TOTAL 22 218

Page 8

LNG Vaporizer - Fired 2015 Volume Capacity Flowrate Capacity Application Example

LNG Tankers 10 up to 900,000 scf 5,000+ Residential, Large

Commercial LNG Fired Vaporizers 7 500,000 scfh

Page 9

LNG Vaporizer - Fired

LNG is heated to change phase from liquid

to gas, heated to produce pipeline natural gas at 60-70oF, and the pressure is

controlled as appropriate

PIPELINELNG tanker loaded with LNG,

transported and then parked on site.

LNG TANKER VAPORIZER

Page 10

Vaporizer Components

Page 11

• On board air for pneumatic valves

• 480V electrical mainly for motor for water pump

• Nitrogen loop for cabinet purge and back up pneumatic control

• Fuel gas system

• Odorant system

• Telemetry

• Methane Detection

• Automatic alarm and shut devices

• Air, electric, motor, pump, heater, control system redundancies

• No LNG pump or methane compressors

• Focus is on spill elimination, not containment!

LNG Vaporizer - Ambient

2015 Volume Capacity Flowrate

Capacity Application Example

LNG Tankers 10 up to 900,000 scf 5,000+ Residential, Large

Commercial LNG Ambient Vaporizers 4 200,000 scfh

Page 12

LNG Vaporizer - Ambient

Page 13

LNG FIRE TRAINING

Page 14

LNG FIRE TRAINING

Page 15

“Large” CNG System

2015 Volume Capacity Flowrate

Capacity Application Example

CNG Tube Trailers 24 up to 150,000 scf "Large CNG" - Up to 2,000

Residential, Medium Commercial CNG Injection Trailers 16 up to 50,000 scfh

Page 16

“Medium” CNG System

2015 Volume

Capacity Flowrate

Capacity Application Example

CNG Gaps/Double Gaps 19 up to 17,000 scf 2,000 scfh "Medium CNG" - Up to 20

Residential, Small Commercial

Heat Exchanger

Bundle

Storage Cylinders

Pressure Control

Equipment

Page 17

PIPELINETrailer is loaded with CNG, transported,

and then parked on site. CNG pressureis reduced and then heated to produce

pipeline natural gas at 60-70oF

TRAILER with STORAGE, HEATING AND REGULATION

“Small” CNG Systems

2015 Volume Capacity Flowrate Capacity Application Example

CNG Modules 90 2,200 scf 500 scfh "Small CNG" - Up to 3

Residential CNG Bottle Trailers 26 1,800 scf 500 scfh

Heat Exchanger

Bundle

Pressure Control

Equipment

Storage Cylinders

Page 18

Telemetry (Levelcon) • Web based application

• Installed on CNG Equipment and LNG equipment

• Tracks flowrates, pressures, temperatures, GPS location

• Automatic page out capability

• Data can be trended and exported

• The larger the equipment, the greater the Levelcon capability

Page 19

Portable LNG/CNG – Peak Shaving

We use the same equipment to supplement

pipeline supply during high demands (cold

temperatures)

• Long term economic benefit versus pipeline

(+$25M)

• Short term project delay mitigation

(environmental, permit, budget)

• Very infrequent event

• LNG/CNG and Planning to work together for

more advanced coordination

• Same equipment, same people, same overall

process

Page 20

LNG

Auburn Clovis

CNG

Folsom Oakdale

Foster City Red Bluff

Lathrop San Francisco

Los Banos Stanford

Nevada City-1 Waterford

Nevada City-2

CROSS COMPRESSION

Santa Cruz

Portable Natural Gas Usage Increase

2010 2014 Increase

Tap-Days (Number of Days times

Number of Taps) 370 5,705 15 times

Average Number of Taps Each Day for

the entire Year 1.01 17 (52 at one time) 17 times

Customer Days Supported (majority in

2012 were two long term LNG projects) 14,000 1,317,000 94 times

Overall T-94B/95 Project

Santa Cruz LNG T-94B/95 Project Background:

• 5.58 Miles of hydrotest

• MAOP = 303 PSIG

• Spike pressure during test of 1,020 psig

• 10”, mostly Grade B seamless but some ERW

System Demands:

• Sole natural gas supply for approx. 44,000 customers for two weeks!

• Injection pressure: 275psig

• 215 Mscfd CNG - Capitola

Equipment:

• 5 portable 300hp compressors – 4 running, 1 stand-by

• 32 tankers

• 3 Vaporizers

• System Emergency Back-up:

• Santa Cruz Underground Holder: ~2.5MMscf

• Line pack: ~1MMscf

T-94B/95 LNGData

• Peak Flowrate

• 490 Mscfh

• 5,975 Gph

• Daily Volume

• 6,944 Mscfd

• 84,500 GPD

• 8.5 tankers per day

• Total Volume (including test)

• 111,100 Mscf

• 1.352 million gallons

• Total Pounds of LNG Injected:

• 4.786 million pounds, 2,400 tons

• 50% more than a World War II Destroyer

• Miles travelled

• Each Round Trip: 686

• Daily: 5,800

• Entire Project: 92,747

• 15 round trips from San Francisco to Boston

• Almost 4 times around the earth

Santa Cruz LNG Logistics

Felton/Santa Cruz – LNG Injection

Site

Boron – Primary LNG supply

location

Ehrenberg – Back-up LNG

supply location

Santa Cruz LNG Logistics

PG&E FeltonInjection Site

PG&E

PG&E

CE

CE

PG&E

PG&E

PG&E CE

CE LNG TANKER

CE LNG TANKERTransfer Site near Inj. Site

PIPELINE

PG&E VAPORIZER

PG&E

PG

&E

Tran

spo

CE Transpo Clean Energy LNG Production Plant

LNG Supply and Transport Real Time Driver Monitoring

Supply Facility in Boron

Jobsite Overview

Compression

Vaporization

LNG Supply

LNG Transfer

LNG Transfer Yard

Jobsite Overview

Compression

Vaporization

LNG Supply

LNG Transfer

LNG Tankers and Manifold

Jobsite Overview

Compression

Vaporization

LNG Supply

LNG Transfer

LNG Vaporizers

Jobsite Overview

Compression

Vaporization

LNG Supply

LNG Transfer

Vaporizer Discharge Manifold

Jobsite Overview

Compression

Vaporization

LNG Supply

LNG Transfer

Portable Compressors

Connecting to the Pipeline

Page 38

Operational

Site Lead

Logistics

Site Lead

Support

Support

Operator 1 Operator 2 Assistant 1 Assistant 2 Assistant 3

Transfer

Site Lead

Transfer 1 Transfer 2/

Assistant 4

Public

Liaison In the event of

an incident

AM

Peak

Safety

Compressor

Operator

Jobsite Organizational

Structure

Santa Cruz LNG Staffing

Total Number of People Involved: 89

• Total Technicians: 24

• Total Site Leads: 10

• Support Personnel and REI: 7

• Drivers/Loaders: 48

THIS IS A TEST (AND ONLY A TEST)

• Before any large scale LNG response, we test for a minimum of 16 hours. This test is for:

– Testing the specific layout as every project is configured differently.

– Testing the jobsite conditions to ensure no environmental issues impact the job.

– Confirm the downstream customer load.

– Ensure the equipment is functioning properly and did suffer a failure due to transport.

• Because this project is so incredibly complex, we are testing for 48 hours one week before the outage begins.

– This gives us time to reconfigure the jobsite, our operations or our process and even potentially retest before the pipeline outage begins.

• This is the first day of our test, and it will not be unusual for us to be shut down and changing our operations today.

SAFETY ON YOUR TOUR •Please stay close to your tour leader. Do NOT wander around the jobsite!!!

•If there is an operational issue, I will escort you to the trailer to allow the technicians to focus.

•If you need to leave or go to trailer, please let TC know and she will escort you.

•Wear PPE:

• At all times: hard hat, vest, eye protection

• Ear plugs and sunscreen as needed.

• Work gloves within 15’ of cryogenic piping.

•You are free to take pictures.

•We will have several spots for group photos along the route.

•Be cautious of tripping hazards.

•ALWAYS look around while walking, many trucks will be leaving/entering the jobsite.

•Properties of LNG reminder:

• -260F boiling point

• Unodorized

• Cold vapor heavier than air

• Asphyxiant

•Other jobsite hazards:

• CNG gas up to 3,600 psig

• Odorant

• Glycol

• Hot temperatures on compressors

STAY HYDRATED! Grab a cold bottle of water on your way out.

THANK YOU

Questions?