Biofuels have been around as long as cars have.

A biofuel is a fuel that contains energy from geologically recent carbon fixation. These fuels are produced from living organisms.

Generating Electricity from Wing Waves.

Wind turbines, like windmills, are mounted on a tower to capture the most energy. At 100 feet (30 meters) or more aboveground, they can take advantage of the faster and less turbulent wind.

Producing electricity from solar energy.

Solar energy is a free, inexhaustible resource, yet harnessing it is a relatively new idea. The ability to use solar power for heat was the first discovery.

Turbines catch the wind's energy with their propeller-like blades.

A blade acts much like an airplane wing. When the wind blows, a pocket of low-pressure air forms on the downwind side of the blade.

Solar energy may have had great potential

Solar technology advanced to roughly its present design in 1908 when William J. Bailey of the Carnegie Steel Company invented a collector with an insulated box and copper coils.

We have been harnessing the wind's energy for hundreds of years.

For utility-scale sources of wind energy, a large number of wind turbines are usually built close together to form awind plant.

Biofuels are produced from living organisms.

In order to be considered a biofuel the fuel must contain over 80 percent renewable materials.

Geothermal energy is the heat from the Earth.

Resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the Earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma.

Geothermal heat pumps can tap into this resource to heat and cool buildings.

A geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building.

In the future, civilization will be forced to research and develop alternative energy sources.

Possession of surplus energy is, of course, a requisite for any kind of civilization, for if man possesses merely the energy of his own muscles, he must expend all his strength - mental and physical - to obtain the bare necessities of life.

Showing posts with label general motors ev1. Show all posts
Showing posts with label general motors ev1. Show all posts

Sunday, November 16, 2008

Ahead Of The Curve Or Behind It

Ahead Of The Curve Or Behind It
I will be leading a couple of workshops this morning as part of "EarthQuaker Day" at Wilmington Friends School. I will be talking about wind power of course, but I'm thinking about a larger theme of coping with the economic and technological changes being forced upon us by relentlessly rising energy costs.

Imagine a graph with two curves: one showing the rising cost of fossil fuels, the other showing the cost of alternative energy solutions. The two curves are going to cross, and sooner rather than later. The question is, are we going to be ahead of the curve, or behind it.

Business Week describes how GM fell behind the curve in a strategy session three years ago:

That's when Vice-Chairman Robert A. Lutz spoke up. Lutz, whose gravelly pronouncements routinely enliven auto shows and generate headlines, has a certain genius for challenging conventional wisdom. Maybe, he told GM's brain trust, it was time to build another electric car-one that would use a giant version of the lithium ion batteries that power cell phones and laptops.

It was a provocative suggestion-and Lutz knew it. Two years earlier, General Motors had killed its experimental EV1 electric car and set off a public relations furor. The environmental lobby was deaf to GM's assertions that the EV1, leased to a limited number of people but not sold, would never have earned its maker any money. And the greens accused GM of pulling the plug to show policymakers that such techno wonders were bad business.

By the time Lutz revisited the issue in 2005, Toyota Motor's (TM) quirky Prius hybrid had turned the Japanese automaker into a poster boy for the environmental movement and cast a greenish halo over the entire company. By contrast, GM, at least in the popular imagination, had tunnel vision; it was still making gasoline hogs like the Hummer and fighting congressional efforts to boost fuel economy. GM executives were furious Toyota was winning green cred despite making its own fuel suckers. But no one at the meeting wanted to hear about electric cars. "We lost 1 billion on the last one. Do you want to lose 1 billion on the next one?'" Lutz recalls one executive saying. "It died right there." The problem for GM's managers is that the world changed more rapidly than they were able to imagine. Oil crossed the the 100 a barrel mark at the beginning of the year. Now it's trading at 127. Change in the energy markets doesn't come in smooth increments, but in discontinuous jolts. Decision makers can't predict just when those discontinuous shifts will come. Some still doubt they will ever come. Those who sit back and wait for the world to change will find themselves behind the curve. It takes years to develop and market alternative power systems for cars, which means GM will be playing catch up to Toyota for the foreseeable future.

Some time in the next few years, the cost of electricity from burning fossil fuels will climb higher than the cost of Bluewater Wind's offshore wind power project, which will take about four years to build. If we wait until electricity from fossil fuels becomes more expensive, we will find ourselves in the very painful position of importing expensive power from out of state while rushing to get wind power up and running here in Delaware.

Source: our-green-energy.blogspot.com