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We haven't seen the video. What energy alternatives were presented? What are the challenges for utsing and managing them?
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name three common challenges with managing nonrenewable energy resource
Please help out with the last response. Describe 3 common challenges with managing nonrenewable energy resources. Thank you.
Alternative Energy VLR Transcript
“Let’s see, the winds we have here now are about 15 miles per hour, not too strong; just barely enough to get the wind turbines running.”
When the wind picks up at the foot of the Rockies, there are those who believe they can hear the future.
“I think the past perception was that wind energy was nice, but not a real solution. That perception is changing. I see wind energy getting more and more competitive.”
At the National Renewable Energy Laboratory, making alternative power sources competitive with fossil fuels has been a mission since the energy crisis of the 1970s. Scientists create solar cells far more efficient than those currently available to homeowners. They believe the market for this technology is about to come of age.
“Recent polls are showing that about 75% of the population would favor the use of solar power, clean power, and would like to see more of it happening.”
But solar power has been around for some time. And while people say they like the idea, incorporating it into their daily lives has always seemed like a promise to be fulfilled, just a little further in the future.
“Sometimes, you know, you worry that they think that this is only a fringe, but it’s not. Solar electricity is becoming a technology that is becoming cost effective for us as consumers in the United States.”
Recent events have people giving solar power another look.
“When your electricity doesn’t come on in California, you start looking very, very quickly.”
Some people have been doing more than just looking. When it was installed, this was believed to be the largest residential solar electric system in the United States. It is so efficient that the homeowner is actually selling electricity back to the power company.
“I also feel good because I’ve always been committed about the environment and doing something. And we have to start as individuals to do things.”
But individuals can do only so much. Researchers here say for renewable energy to really make a difference, it has to be on a large scale.
“This is a solar concentrator. The mirrors focus the sun’s rays into a narrow beam, which turns an engine and provides electricity. Tough to get in the backyard, sure, but a power company could probably find a place for it.”
There hasn’t been any great sense of urgency for finding energy alternatives. For decades, low gas prices have kept Americans in their cars, usually alone. But a jump in gas prices often spotlights the search for something else to keep all those cars going.
“What’s in there now is material that looks like straw. It’s actually the material that farmers just leave sitting on the ground after they go through and they harvest corn. We’re trying to get farmers to collect this material so that we can run it through conversion technology to make new liquid fuels.”
Since the energy crisis of the 70s, many farmers have been turning food into fuel, using grains, like corn, to create ethanol. But now the emphasis in making fuels is moving away from the grain itself to the stalks and stubble left on the ground after the harvest.
“The cellulose that’s in here that is actually made up of sugars is something that they can turn into ethanol in the same way that they are currently taking their corn grain and having it turned into fuel grade ethanol.”
The National Renewable Energy Lab has a plant that converts harvest leftovers, and just about anything else, into fuel.
”What are some of these other materials?”
“Some of these, like this for example, is a wood material.”
“Just wood chips, basically.”
Proving that renewable energy technology is viable remains a struggle, at least in America. Wind turbines were pioneered in the United States, but countries in Europe use them to supply more meaningful amounts of power.
“The cost of energy in the United States is so low, compared to Europe, that our industry has had a harder time competing with fossil fuels.”
The fear that the current energy situation could become a crisis has increased the urgency for finding reliable alternatives to fossil fuels. For renewable energy, the future may be now.
this is the transcript to the video. can anyone help me
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