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The Long Emergency: Surviving the End of Oil, Climate Change, and Other Converging Catastrophes of the Twenty-First Century James Howard Kunstler See book keywords and concepts

Cost was not a constraint. The fuel cells and hydrogen to run them weighed much less than batteries, an important consideration when firing loads into space on rockets. Later, in manned spacecraft, the astronauts could also drink the water that the fuel cells produced. There is no question that fuel cells exist and that they work. But huge and confounding questions arise over the economics of hydrogen. The problem is that hydrogen is not exactly a fuel. It's more accurately a "carrier" of energy than a fuel. It takes more energy to manufacture hydrogen than the hydrogen itself produces.

Worldchanging: A User's Guide for the 21st Century Alex Steffen See book keywords and concepts

The technology roadmaps of today point toward electrification of our vehicles as the answer; hydrogen fuel-cell vehicles would use onboard fuel cells to generate electricity from hydrogen gas, a renewable energy source. Hydrogen cars, and an entire economy based on hydrogen-generated energy, sound great in concept. In reality, hydrogen vehicles carry a long list of unknowns. Foremost are the cost and performance of the hydrogen fuel cells themselves. Currently, hydrogen fuel cells require complex manual assembly, and therefore production is slow and costly.

Safe Trip to Eden: Ten Steps to Save Planet Earth from the Global Warming Meltdown David Steinman See book keywords and concepts

Be sure to check out their latest returns and get expert advice: New Alternatives Fund invests 25 percent of its funds in renewable energy such as wind power, fuel cells, ocean energy, solar, hydrogen, biomass, and geothermal. Visit them at www.newalternativesfund.com. The Domini Equity fund is based on the Domini Social Index 400 (whose companies include McDonald's). So why did Domini pick McDonald's?

Today, when you invest in GE, you're also investing in fuel cells, wind turbines, and photovoltaic technology. Buying shares in Chevron—with its energy conservation and renewable energy divisions and its widely recognized high environmental standards—or BP and Shell, both of whom are investing heavily in solar, is buying green equity. It isn't that these companies are by any means environmentally perfect—and in this book I've tried hard not to sugarcoat?

GM nonetheless in the first five years of the new millennium put most of its eggs in the fuel cells basket and pledged to have mass-produced fuel-cell vehicles by 2010, although U.S. News & World Report wondered if "GM engineers have been inhaling too many fumes."19 With not even two dozen hydrogen filling stations in the United States and with most of these expected to be in or near L.A. and San Francisco, 2010 might have been overly optimistic.

The Long Emergency: Surviving the End of Oil, Climate Change, and Other Converging Catastrophes of the Twenty-First Century James Howard Kunstler See book keywords and concepts

Later, in manned spacecraft, the astronauts could also drink the water that the fuel cells produced. There is no question that fuel cells exist and that they work. But huge and confounding questions arise over the economics of hydrogen. The problem is that hydrogen is not exactly a fuel. It's more accurately a "carrier" of energy than a fuel. It takes more energy to manufacture hydrogen than the hydrogen itself produces.

These units, each about the size of a refrigerator, would generate all household current as needed by means of fuel cells. Power lines could be dispensed with. One weak spot in the theory was that the fuel cells would run on natural gas, a commodity now in depletion. Another weak spot was that research and development by several companies, led by General Electric, had so far failed to engineer an affordable home generation unit. So distributed generation has come to naught so far.

The Field - The Quest for the Secret Force of the Universe Lynne Mctaggart See book keywords and concepts

There was photovoltaics (using solar cells), or fuel cells, or water batteries (an attempt to convert the hydrogen from water into electricity in the cell). There was wind, or waste products, or even methane. But none of these, even the more exotic among them, were turning out to be robust or realistic. Bill and Hal agreed that what was really needed was an entirely new source: a cheap, endless, perhaps as yet undiscovered, supply of energy. Their conversations often veered off in this kind of speculative direction.

Worldchanging: A User's Guide for the 21st Century Alex Steffen See book keywords and concepts

Furthermore, fuel cells have consistency, quality, and performance issues, including materials' degradation and the inability to work in subfreezing temperatures. Another major issue is finding a way to store enough hydrogen on board the car to support a driving range that is equivalent to that of current gasoline-fueled vehicles, without compromising the passenger and cargo space. Finally, there must be an infrastructure to support the delivery of hydrogen to refueling stations for retail sale.

The Long Emergency: Surviving the End of Oil, Climate Change, and Other Converging Catastrophes of the Twenty-First Century James Howard Kunstler See book keywords and concepts

There is no question that fuel cells exist and that they work. But huge and confounding questions arise over the economics of hydrogen. The problem is that hydrogen is not exactly a fuel. It's more accurately a "carrier" of energy than a fuel. It takes more energy to manufacture hydrogen than the hydrogen itself produces. So at this time hydrogen production depends on the other known energy sources that are all problematic for one reason or another—namely, oil, natural gas, coal, nuclear, hydro, solar, biomass, wind.

One weak spot in the theory was that the fuel cells would run on natural gas, a commodity now in depletion. Another weak spot was that research and development by several companies, led by General Electric, had so far failed to engineer an affordable home generation unit. So distributed generation has come to naught so far. The upshot has been that the giant regional grids, with their long ranks of towers and power lines and substations, are not being maintained because the utility companies are still betting that they will be obsolete sooner rather than later.

They are modular and can be stacked to produce different amounts of power. fuel cells can operate at efficiencies two to three times that of the internal combustion engine, and require no moving parts. In a kind of reverse electrolysis, hydrogen introduced through a catalytic metal membrane combines with oxygen to produce water vapor and an electric current, which then does useful work. In a fuel-cell car, for example, electricity from the fuel cell would power an electric motor and make the car go.

Worldchanging: A User's Guide for the 21st Century Alex Steffen See book keywords and concepts

The Orcelle would be powered by a combination of sails, solar energy, and fuel cells, using optimal designs to carry the most cargo possible—while requiring no ballast water, using fewer toxic chemicals, and generating no greenhouse emissions. The company predicts that such vessels may be plowing the waves as soon as 2025. ez Why Does the United States Still Export Cotton? That's the sort of question economists like Pietra Rivoli, author of The Travels of a T-Shirt in the Global Economy, like to ask. Intrigued when an antiglobalization protester asked her, "Who made your T-shirt?

By using a combination of modular solar panels, wind microturbines, batteries, and plug-ins for fuel cells and biofuel-friendly diesel engines, the MPS can generate a constant 150 kilowatts. It can operate both off-grid and in parallel with grid power, is rugged enough to be dropped via parachute, and requires so little maintenance, SkyBuilt says, that one of their solar/wind units has been operating for a year continuously without being touched.

Reinheriting the Earth: Awakening to Sustainable Solutions and Greater Truths Brian O'Leary See book keywords and concepts

Unfortunately, we have not yet found cost-effective ways to provide the hydrogen for the fuel cells and for other energy uses. All of that could change in the fully developed hydrogen economy described in the next section. Ironically, cold fusion or Mills cell technology could provide the most inexpensive route to hydrogen production, but if we have these technologies we may not need large amounts of hydrogen for fuel anyway.

No number of fuel-efficient automobiles or powerplants, catalytic converters, stack scrubbers, batteries or fuel cells could replace the deployment of clean, renewable, inexpensive energy sources. We need both. Dennis Weaver, actor and founding president of the Institute of Ecolonomics, put the situation this way: "We've tried the band-aid approach for solving the smog problem for years and predictably it's not working....(efficiency) can no longer be our thrust. We need new technology for a New Millennium."2 What Then are the Solutions?

This light gas could soon replace fossil fuels as our primary energy carrier for internal combustion, power plant boilers and fuel cells. The scientific community knows the methods of hydrogen production, infrastructure, storage and consumption. The concepts involve basic chemistry and there are no show stoppers, except for the will to invest in new engineering. Commercial prototype hydrogen automobiles are commonplace.

Our knowledge about its combustion and use in fuel cells have been with us since the birth of the Industrial Age about 200 years ago. The relevant technologies have been available for almost that long, and now they're being given a new look for fueling the 21st Century and beyond. This comprises our "baseline scenario" for a solar-hydrogen economy. But infrastructures would have to become more centralized, more expensive and consume more natural resources than a new hydrogen energy economy.

Let's go beyond hydrogen and also look at ethanol and water, at electric motors, at hybrids, at emerging technologies of fuel cells, cold fusion, zero point energy, the latest solar photovoltaic technology, at everything reasonable—no stones unturned. My hunch is that hydrogen will be an integral part of this clean-fuel economy, but we shouldn't restrict ourselves to preconceived baseline scenarios. And we must make sure things work and are thoroughly tested before we move ahead.

The cost of fuel cells keeps decreasing as they become ever more common in the marketplace. As promising as these traditional hydrogen energy technologies may be, we come up against fundamental constraints which chemistry places on how much energy we can get out of the hydrogen atom. Otherwise, the conventional wisdom holds that we must resort to thermonuclear explosions or multibillion dollar attempts to control a hot fusion reaction in a so-far unsuccessful effort to reach energy "breakeven" in a confined plasma.

The Complete Guide to Health and Nutrition Gary Null See book keywords and concepts

Carbohydrates are the fuel cells of life. They do one job that neither fats nor proteins can do as directly, provide energy for every body activity, from cell metabolism to running a marathon. They are found in every living thing. It is thanks to the miracle of photosynthesis that we have fruits, grains, seeds, nuts, and vegetables to eat—as well as air to breathe. Through photosynthesis, plants transform the energy of sunlight for storage in leaves, stems, roots, and seeds.

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