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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?

It leaks more easily and can ignite at lower oxygen concentrations Signup and view all the answers

What is the benefit of using liquefied natural gas?

It reinforces the technology base for hydrogen pipelines Signup and view all the answers

What is the goal of the SuperGrid effort?

To develop a carbonless, ecologically gentle domestic energy infrastructure Signup and view all the answers

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

To clarify the costs and jump-start the SuperGrid effort Signup and view all the answers

What is the requirement for hydrogen distribution and storage infrastructure?

It should be airtight Signup and view all the answers

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

It will improve economic and physical security Signup and view all the answers

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

It provides extensive experience in pumping hydrogen over kilometer-scale burial pipelines Signup and view all the answers