Liquefied Natural Gas


Mar 01, 2006 Print Article

Key Performance Indicators

  • Recommendation: This topic is not recommended for further study due to a lack of sufficient near-term employment opportunities within Texas.
  • Jobs: Relatively low number of new jobs within the next three to five years.
  • Trends: Higher world oil prices are expected to result in a shift away from petroleum consumption and toward natural gas consumption in all sectors of the international energy market.
  • Timing: EIA projections show significant increases in LNG imports over the next 20 years. Projections tend to vary based on domestic natural gas supplies, advances in clean coal and global energy markets.
  • Relevance: Highly related to existing process technology curriculum within Texas. However, start-up costs are estimated to be $2.5 to $3 million.
  • Transportability: KSAs applicable within process technology positions.

Figure 1. U.S. Net Imports of Natural Gas, 1960-2030 (trillion cubic feet), EIA, Annual Energy Outlook 2006

Simply put, liquefied natural gas (LNG) is natural gas in liquid form. Natural gas is chilled to -259 degrees Fahrenheit in a process called liquefication and is condensed into a colorless, odorless, non-corrosive and non-toxic liquid. The energy density denser liquid form enables large amounts of natural gas to be stored or transported long distances. While LNG technology has existed for some time, rising costs and consumption of petroleum supplies has made natural gas an increasingly popular form of energy and because about 96% of the world’s proven natural gas supplies are outside of North America,1 LNG imports are on the rise and projected to increase significantly over the coming years (See Figure 1).

Jobs

The number of LNG technicians required in Texas within the next three to five years appears to be relatively low.

There are currently four LNG terminals in the United States and two new facilities under construction: the Cheniere Energy terminals in Freeport, Texas and Cameron Parish, Louisiana.2 According to William McAled, “by 2010 it is likely that only five LNG facilities will be built – with only seven being built in the foreseeable future.”3

As much as 60% of projected new LNG imports will be handled by the four existing terminals. Expansions are planned at three of the four existing terminals, including a proposed expansion of 0.8 billion cubic feet per day at Cove Point, Maryland, and approved expansions of 1.1 billion cubic feet per day at Lake Charles, Louisiana, and 0.54 billion cubic feet per day at Elba Island, Georgia.4

While the number of regasification facilities and LNG imports is projected to increase in the coming years, the actual number of LNG technicians required for these facilities is anticipated to be low due to the high degree of process automation typically involved in offloading and regasification.

Skill Sets

LNG technicians are employed by gas and pipeline companies as well as electric utilities to maintain and operate liquefied natural gas plant equipment and facilities including engine driven reciprocating natural gas compressors and ancillary equipment (pumps, heat exchangers, filters, instrumentation and controls, etc.), piping, boilers, valves, storage tanks, reciprocating air compressors, auxiliary generator, and heaters.5 The majority of the 100 LNG facilities in operation within the U.S. are peak-shaving facilities used by utilities to store domestic natural gas production for gas-fired electric generation.6 The remaining LNG facilities consist of LNG terminals located on the U.S. coast when liquefied natural gas is offloaded and regasified for distribution into the pipeline network.

Due to the highly automated nature of LNG terminals, operators and technicians will require highly advanced process training including intelligent field devices.

Trends

Figure 2. Primary Energy Consumption by Fuel, 1960-2030 (quadrillion Btu), EIA, 2006 Outlook Presentation, 12/13/2005

The Energy Information Administration’s Annual Energy Outlook 2006 states that “higher world oil prices are expected to result in a shift away from petroleum consumption and toward natural gas consumption in all sectors of the international energy market.”7 However, in a recent presentation on this same report the EIA provided a diagram that seems to counter this statement (See Figure 2).

Regardless, the amount of natural gas consumption is projected to increase steadily over this timeframe and since the vast majority of proven natural gas reserves are located outside of the United States, a steady increase in natural gas imports is expected. LNG imports and infrastructure is projected to increase from 0.6 trillion cubic feet in 2004 to 4.1 trillion cubic feet in 2025 (note this projection is down from 6.4 trillion cubic feet in last year’s AEO report).

The report also states that “current high prices for natural gas are expected to accelerate the construction of new LNG terminal capacity, resulting in a significant increase in total U.S. LNG receiving capacity by 2015.”8

Several proposed LNG sites have had strong local opposition due to safety concerns. The U.S. Department of Transportation has established regulations for LNG facilities, but some have criticized the effectiveness of these regulations at protecting the public from hazards such as pool fires where a spill is ignited and flammable vapor clouds that can form if a spill is not ignited. Overall, however, LNG has a relatively strong safety record.

Timing

 

Figure 3. Natural Gas Wellhead Price 1970-2030 (2004 dollars per thousand cubic feet), EIA, 2006 Outlook Presentation, 12/13/2005

The projected increase in U.S. LNG imports “is based largely on an assumption that domestic gas production will fail to keep pace with demand and that, as a result, natural gas prices can be sustained at a higher level of around U.S.$4 to U.S.$6 per MMBTU.”9 LNG becomes economically competitive to domestic gas supply when the price of domestic gas rises above $3.50 per MMBtu.10 With the current price of natural gas is $7.07 per MMBtu,11 LNG has become a competitive alternative. LNG is projected to maintain this price advantage over natural gas for the foreseeable future (See figure 3).

Construction of new LNG terminals is projected to slow after 2015. As indicated in Figure 1, U.S. net LNG imports are projected to total 4.4 trillion cubic in 2030 with a terminal capacity of 5.8 trillion cubic feet.12

Relevance

LNG curriculum is relevant to community and technical colleges; however, there does not appear to be a high degree of employment opportunities in the near-term. Moreover, with an estimated start-up cost of $2.5-$3M,13 investing in a new program may not be justified to satisfy the so few positions unless a college is already positioned with related equipment. Lamar Technical Institute’s existing processing plant training may provide just such an opportunity.

  1.  Federal Energy Regulatory Commission, LNG – The Importance of LNG, May 2006
  2. Energy Information Administration, Annual Energy Outlook 2006
  3.  William McAled, The Future of U.S. LNG Marketplace, LNG Review 2005
  4. EIA, op. cit.
  5. Dominion, Job Descriptions, www.dom.com
  6. Michelle Foss, Balancing North America Supply Requirements with LNG , LNG Review 2005
  7. EIA, op. cit.
  8. EIA, op. cit.
  9.  Simon Wardell, LNG The Challenges Ahead, LNG Review 2005
  10. Federal Energy Regulatory Commission, LNG – The Importance of LNG, May 2005
  11. EIA, Natural Gas Weekly Update, March 23, 20006
  12. EIA, op. cit.
  13. Rob Wolaver, Vice President for Workforce Development, Texas State Technical College Waco, Interview (Bettersworth)
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