Power Grid for Hydrogen Economy

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Questions and Answers

What is the estimated cost of a multidecade, multigenerational SuperGrid effort in today's dollars?

  • Unknown due to extensive exploration needed
  • A trillion (correct)
  • Hundreds of millions
  • Billions

What is the advantage of SuperCables in terms of power transmission?

  • They are more prone to leakage
  • They can carry many times the power of existing transmission lines (correct)
  • They are more expensive to install
  • They are more energy efficient

What is the energy content per unit mass of hydrogen compared to methane in natural gas?

  • Half that of methane
  • Ten times that of methane
  • The same as methane
  • Twice that of methane (correct)

What is the challenge in using hydrogen in distribution and storage infrastructure?

<p>It leaks more easily and can ignite at lower oxygen concentrations (A)</p> Signup and view all the answers

What is the benefit of using liquefied natural gas?

<p>It reinforces the technology base for hydrogen pipelines (A)</p> Signup and view all the answers

What is the goal of the SuperGrid effort?

<p>To develop a carbonless, ecologically gentle domestic energy infrastructure (D)</p> Signup and view all the answers

What is the role of participants in the 2004 SuperGrid workshop?

<p>To clarify the costs and jump-start the SuperGrid effort (A)</p> Signup and view all the answers

What is the requirement for hydrogen distribution and storage infrastructure?

<p>It should be airtight (C)</p> Signup and view all the answers

What is the benefit of the SuperGrid effort in terms of economic and physical security?

<p>It will improve economic and physical security (B)</p> Signup and view all the answers

What is the relevance of the experience in pumping hydrogen in the petrochemical industry and space programs?

<p>It provides extensive experience in pumping hydrogen over kilometer-scale burial pipelines (B)</p> Signup and view all the answers

Flashcards

What is a SuperGrid?

A nationwide, long-term energy infrastructure project.

SuperGrid Cost?

Estimated at one trillion dollars.

SuperCable Advantage?

They transmit significantly more power than current lines.

Hydrogen Energy vs. Methane?

Twice that of methane.

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Hydrogen Challenge?

It leaks more easily and ignites with less oxygen.

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LNG Benefit?

It strengthens the technology base for hydrogen pipelines.

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SuperGrid Goal?

A carbonless, ecologically sound energy system.

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Workshop Role?

To clarify costs and initiate the SuperGrid effort.

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Hydrogen Infrastructure Requirement?

Airtight to prevent leaks.

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Supergrid benefits?

Improved national and economic security.

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