Ch21 lecture 3e

This lecture will help you understand: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Central Case: Iceland moves toward a hydrogen economy ,[object Object],[object Object],[object Object],[object Object]

“New” renewable energy sources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

New renewables provide little of our power ,[object Object],[object Object],[object Object]

The new renewables are growing fast ,[object Object],[object Object],[object Object]

Use has expanded quickly because of: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],New energy sources create jobs

Our transition must begin soon ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Solar energy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Passive solar heating is simple and effective ,[object Object],[object Object],[object Object],[object Object],[object Object]

Active solar energy collection ,[object Object],[object Object],[object Object],[object Object],[object Object]

Solar energy use is increasing ,[object Object],[object Object],[object Object]

Concentrating solar rays magnifies energy ,[object Object],[object Object],[object Object],[object Object],[object Object]

Photovoltaic cells generate electricity ,[object Object],[object Object],[object Object],[object Object],[object Object]

Solar power is little used but fast growing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Solar energy will continue to grow ,[object Object],[object Object],[object Object],[object Object]

Solar power offers many benefits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Location is a drawback ,[object Object],[object Object]

Cost is a drawback ,[object Object],[object Object]

Wind has long been used for energy ,[object Object],[object Object],[object Object],[object Object],[object Object]

Modern wind turbines convert kinetic energy ,[object Object],[object Object],[object Object]

Wind farms ,[object Object],[object Object],[object Object],[object Object]

Wind is the fastest-growing energy sector ,[object Object],[object Object],[object Object],[object Object]

Offshore sites can be promising ,[object Object],[object Object],[object Object],[object Object]

Wind power has many benefits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Wind power has some downsides ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

U.S. wind-generating capacity ,[object Object]

Geothermal energy ,[object Object],[object Object],[object Object],[object Object],[object Object]

The origins of geothermal energy

Geothermal energy is renewable in principle ,[object Object],[object Object],[object Object],[object Object]

Geothermal energy produces heat and electricity ,[object Object],[object Object],[object Object],[object Object]

Geothermal energy is greatest in the U.S. west

Heat pumps are highly efficient ,[object Object],[object Object],[object Object],[object Object]

Use of geothermal power is growing ,[object Object],[object Object],[object Object],[object Object],[object Object]

Geothermal power has benefits and limits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

We can harness energy from the oceans ,[object Object],[object Object],[object Object],[object Object]

Energy can be extracted from tidal movement

Wave energy ,[object Object],[object Object],[object Object],[object Object],[object Object]

Coastal onshore facilities ,[object Object],[object Object],[object Object],[object Object],[object Object]

The ocean stores thermal energy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

A hydrogen economy ,[object Object],[object Object],[object Object],[object Object]

An energy system based on hydrogen ,[object Object],[object Object],[object Object],[object Object]

Production of hydrogen fuel ,[object Object],[object Object],[object Object],[object Object]

Other ways of obtaining hydrogen ,[object Object],[object Object],[object Object],[object Object],[object Object]

Fuel cells produce electricity ,[object Object],[object Object],[object Object],[object Object]

Hydrogen and fuel cells have many benefits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusion ,[object Object],[object Object],[object Object]

QUESTION: Review ,[object Object],[object Object],[object Object],[object Object],[object Object]

QUESTION: Review ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

QUESTION: Weighing the Issues ,[object Object],[object Object],[object Object],[object Object],[object Object]

QUESTION: Interpreting Graphs and Data ,[object Object],[object Object],[object Object],[object Object],What conclusions can you draw from this graph?

Ch21 lecture 3e

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Editor's Notes