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Renewable energy source and hydrogen economy

1) What renewable energy sources and strategies do you think our society should focus on investing in? Give reasons to support to support.

2) Imagine that there is a hydroelectric dam near where you live. Consider what economic benefits and environmental impacts it has in your area. Given this mixture of effects, would you favor the construction of more dams and greater reliance on hydropower?

3) Iceland is giving itself many years to phase in its planned hydrogen economy. Do you think large industrialized nations such as the United States and Canada could transit to a hydrogen economy more quickly, less quickly, or not at all? Why?

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1) What renewable energy sources and strategies do you think our society should focus on investing in? Give reasons to support to support.

2) Imagine that there is a hydroelectric dam near where you live. Consider what economic benefits and environmental impacts it has in your area. Given this mixture of effects, would you favor the construction of more dams and greater reliance on hydropower?

3) Iceland is giving itself many years to phase in its planned hydrogen economy. Do you think large industrialized nations such as the United States and Canada could transit to a hydrogen economy more quickly, less quickly, or not at all? Why?

1. Renewable energy is derived from natural processes that are replenished constantly. Major renewable source of energy are solar energy, wind power, hydroelectric power, bio fuel and geothermal energy. While currently renewable energy sources only supply a modest fraction of current energy use (14% of primary energy use, mostly from traditional biomass), there is much potential that could be exploited in the future. There are many different ways to assess potentials. The theoretical potential indicates the amount of energy theoretically available for energy purposes, such as, in the case of solar power, the amount of incoming radiation at the earth's surface. The technical potential is a more practical estimate of how much could be put to human use by considering conversion efficiencies of the available technology and available land area.
Renewable energy technologies encompass a broad, diverse array of technologies, and the current status of these different technologies varies considerably. Some technologies are already mature and economically ...

Solution Summary

Renewable energy is derived from natural processes that are replenished constantly. Major renewable source of energy are solar energy, wind power, hydroelectric power, bio fuel and geothermal energy. While currently renewable energy sources only supply a modest fraction of current energy use , there is much potential that could be exploited in the future.
A hydrogen economy is a hypothetical economy in which energy is stored and transported as hydrogen (H2), particularly as an energy carrier for mobile applications (vehicles, aircraft). While the primary purpose is to eliminate the use of carbon and carbon dioxide, a secondary goal is to provide an energy carrier to replace dwindling supplies of petroleum

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