Electricity and Hydricity

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What percentage of fuel energy is converted into motion in even the most efficient automobiles?

40 to 45 percent

30 to 35 percent (correct)

60 to 65 percent

50 to 55 percent

What is the estimated fuel efficiency of fuel-cell hybrids?

60 to 65 percent (correct)

70 to 75 percent

40 to 45 percent

50 to 55 percent

What would be a major benefit of a low-loss grid?

Reduced energy production

Increased energy storage

Increased energy transmission losses

Reduced need for new generation construction (correct)

What would be required to replace a modest percentage of petroleum-based transportation fuels with hydrogen?

A large amount of electricity and hydrogen Signup and view all the answers

What would a SuperGrid enable power plants to do?

Tap into excess nighttime capacity to meet peak electricity needs Signup and view all the answers

What is a potential benefit of combining hydrogen fuel cells with the SuperGrid?

Increased tolerance for rapid swings in demand Signup and view all the answers

What feature of the SuperGrid would allow it to reduce fuel costs for electric- and hydrogen-powered hybrid vehicles?

Its ability to store electricity in chemical form Signup and view all the answers

What is the equivalent amount of energy stored in every 70 kilometers of SuperCable?

32 gigawatt-hours of electricity Signup and view all the answers

What type of vehicles have been demonstrated by BMW, Mazda, and others?

Hybrid vehicles that have two fuel tanks and engines that burn hydrogen and gasoline Signup and view all the answers

What is the purpose of the Raccoon Mountain reservoir in Tennessee?

To generate electricity through hydroelectric dam Signup and view all the answers

What is the primary benefit of using the SuperGrid as an energy store?

Reducing fuel costs for electric- and hydrogen-powered hybrid vehicles Signup and view all the answers

What is the function of the pipes in the SuperCable?

To store hydrogen fuel for hybrid vehicles Signup and view all the answers

What is the primary advantage of using cryogenic, superconducting conduits in the proposed SuperGrid?

Reduced energy losses due to heat generation Signup and view all the answers

What is the primary motivation for developing the Continental SuperGrid?

To address the intermittency of renewable energy sources Signup and view all the answers

What is the expected role of the SuperGrid in the context of energy storage?

To act as a vast repository of energy through hydrogen storage Signup and view all the answers

What is the primary advantage of using hydrogen as a fuel in the context of the SuperGrid?

It can be used for both energy storage and personal transportation Signup and view all the answers

What is the expected timeframe for the development and implementation of the SuperGrid?

A few decades Signup and view all the answers

What is the primary characteristic of the current electrical grid in North America?

It has evolved in piecemeal fashion over the past 100 years Signup and view all the answers

Electricity and Hydricity

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