Giving the Electric Grid Some Smarts

  • The enhanced communication of the Smart Grid could help utility companies predict an overload on the power system. (Photo courtesy of Gastev CC-2.0)

Remember that huge blackout in the summer of 2003? Forty-five million people in the Midwest and Northeast US – as well as 10 million in Canada lost power. Julie Grant reports that the federal government and utilities are spending billions of dollars on what’s called a “Smart Grid” – in part, so we don’t have more large scale blackouts.

Transcript

Remember that huge blackout in the summer of 2003? Forty-five million people in the Midwest and Northeast US – as well as 10 million in Canada lost power. Julie Grant reports that the federal government and utilities are spending billions of dollars on what’s called a “Smart Grid” – in part, so we don’t have more large scale blackouts.

Right now, electric power in the U.S. is generated by a relatively small number of very big power plants. That power is transmitted all over the place.

But this set up is increasingly running into problems. The demand for power is skyrocketing: from big American houses and TVs, air conditioners and computers. The grid is struggling to keep up. And it’s not always succeeding.

There have been more – and more massive – blackouts in recent years than in previous decades.

Universities, private laboratories, and utility companies are all looking at different aspects of making the electric grid smarter.

Chris Eck is spokesman for First Energy, which provides power in Ohio, Pennsylvania and New Jersey. He says there are so many ideas on how to improve the nation’s electrical system.

“Part of the challenge is defining the smart grid. I think there are different opinions out there about what it will and won’t include.”

The Department of Energy says the smart grid will change the electric industry’s entire business model. Instead of being a centralized, producer-controlled network – it will transform to become decentralized and consumer-interactive.

Ken Laparo works on these kinds of issues at Case Western Reserve University in Ohio. He says a smart grid will get consumers more involved in planning their energy use.

“Right now, you have no idea what a killowatt hour is costing you in Cleveland on March 10 at 8:30 in the evening.”

Laparo says most of us just look at those little bars on our electric bills that show how much energy we used that month. But he says it doesn’t really mean much to us.

But companies are developing all kinds of products: smart plugs, smart thermostats, smart appliances, that tell you how much energy is being used – so customers can decide the best ways to reduce energy use – and to reduce their bills.

Utility companies might start charging more at peak energy times of day – and they will communicate those shifting prices to “smart” consumer devices in real time.

Laparo says these small slices of energy savings might not seem like a lot:

“But it’s the cummulative effect of what everybody is doing, no matter how small it is. When you add it up over millions of customers over days and weeks and months and years that the overall opportunity is huge.”

But there’s still a lot to be done. A decentralized system is going to need better communication. If every programmed refrigerator is constantly trying to optimize its energy usage based on the power’s moment-to-moment price — the electricity system will also have to be an information system. Each smart appliance and home meter, will have to be able to communicate with the energy companies.

If it works, this type of communication could help utility companies predict an overload on the power system – like the one that started the black out in 2003. Utilities today just predict when usage will be high. But a smart grid, they will actually know how high it is in real time.

Utilities will also have a better ability to fix problems in the system before they get out of control.
This is what some researchers call the Holy Grail of the Smart Grid. In the short term, they see consumers learning more about saving energy, and communicating that to the power companies. But in the long term, they want to be able to sense and manage the grid, to avoid those debilitating blackouts.

The 2003 blackout started because there was a high demand for power in one Ohio town. When that one generating plant went off line – it tried to get power from another plant, and overloaded the next plant, setting off a cascade of outages. More than 100 power plants shutdown that day.

First Energy spokesman Chris Eck says a smart grid could help prevent blackouts.

“As it is now, you might know you have circuits out and you have to send crews out to physically for a problem with these lines. With a smart grid, with enough sensors and feedback communication, you might be able to pinpoint before they get to the site. And they can isolate the problem and fix it quicker.”

For The Environment Report, I’m Julie Grant.

Related Links

Wind Energy Estimates Jump

  • The new estimates of wind power potential take into consideration taller and more efficient turbines. (Photo courtesy of the NREL

A study from the National Renewable Energy Laboratory shows that the United States has a lot of wind, and that wind could generate a lot of energy. Samara Freemark has the story:

Transcript

A study from the National Renewable Energy Laboratory shows that the United States has a lot of wind – and that wind could generate a lot of energy. Samara Freemark has the story:

Researchers at the Lab estimated the total amount of wind power that could be generated in the United States at more than 10 times the total electricity we use today.

The figure comes to 37 million gigawatts of electricity per year.

That’s much higher than an estimate researchers put out in 1993.

Dennis Elliot is with the National Renewable Energy Laboratory. He says that’s largely due to turbine improvements.

“The turbines are much bigger. We’re looking at heights of 80 meters,
compared to the old technology had heights of about 50 meters above ground. The
higher you go up, the more energy is available in the wind. The wind speeds get
greater.”

Elliot says the biggest challenge now is building the infrastructure to tap that energy, and move it around the country.

For The Environment Report, I’m Samara Freemark.

Related Links

Pushing Power Companies for More Renewables

  • Renewable energy groups say they want the federal government to tell power companies that more power has to come from renewable energy. (Photo courtesy of the National Renewable Energy Laboratory)

Renewable energy groups are
calling on the federal government
to do more to support their
industries. They want the
government to set standards
for where the country gets
its power. Mark Brush reports:

Transcript

Renewable energy groups are
calling on the federal government
to do more to support their
industries. They want the
government to set standards
for where the country gets
its power. Mark Brush reports:

The groups say they want the federal government to tell power companies that more power has to come from renewable energy. Most power companies in the country are basically regulated monopolies.

Denise Bode is the president of the American Wind Energy Association. She used to work as a public utility regulator. Bode says it’s up to the government to ask one question when they regulate these monopolies.

“What’s in the public interest? And, you know, often times as a state public utility commissioner I would make the determination as to what kind of power generation that we would authorize our utilities to do and what was in the public interest.”

Bode says it is in the public interest to get more power from cleaner, renewable sources.

Some big utilities oppose having one federal standard – and there are a lot reasons why they oppose it – but one of them is that states are already handling it. There are 30 states that have some kind of renewable targets in place.


For The Environment Report, I’m Mark Brush.

Related Links

Biofuels in Europe: Part 3

  • Jühnde’s biomass power plant runs 24/7 and gets fed manure and grains every day. (Photo by Sadie Babits)

People fed up with hearing
about an energy crisis talk
about going off the grid.
In the US, the solution is
to install solar panels on
your roof or put up a wind
turbine. But a village in
Germany has taken a different
approach. In the final part
of our three-part series on
biofuels in Europe, Sadie
Babits explains:

Transcript

People fed up with hearing
about an energy crisis talk
about going off the grid.
In the US, the solution is
to install solar panels on
your roof or put up a wind
turbine. But a village in
Germany has taken a different
approach. In the final part
of our three-part series on
biofuels in Europe, Sadie
Babits explains:

The village of Juhnde sits between rolling farmland and woods. The first buildings went up more than a thousand years ago. It looks like a lot of German villages – narrow streets, terra cotta roofs, and a towering church steeple. But talk to anyone here and they’ll tell you Juhnde is no ordinary town. It’s the first community in Germany to be powered and heated by cow manure and grain.

“This is the biogas power station on this side.“

That’s Gerd Paffenholz. He’s lived here in Juhnde for 20 years. He volunteers to show visitors, like me, the village’s bio-energy plant.

“This is the wood heating system and what you don’t see is the network that deliver the hot water in the ground.”

Paffenholz stands on top of an underground storage tank. The liquid manure in here gets pumped over to a massive green tank. That’s the anerobic digester. There, micro-organisms have a hay day eating manure and grains supplied by farmers in Juhnde. The bacteria create biogas, which then gets combusted into heat and electricity. It’s pretty silent outside the power station but open the door…

(engine sound)

That’s the sound of 700 kilowatts of power being generated. The electricity gets sent to the public network. It provides this village of 750 people with renewable power. There’s an added bonus – energy that’s normally lost while making biogas gets captured and is used to heat water. That hot water gets delivered through a series of underground pipes to heat most of the homes in Juhnde.

The village’s bioenergy plant went live five years ago. The price tag? Nearly 8 million dollars. The money came through a government grant and from residents who each ponied up thousands of dollars to join the plant cooperative. The village has also cut its greenhouse gas emissions in half already meeting targets set by the European Union for 2050.

“It shows you what some wise investments and collective thinking can make happen.”

That’s Jim McMillan. He researches biofuels at the National Renewable Energy Laboratory in Boulder, Colorado. He says Juhnde has created an attractive model that could work in the Northern US and Canada where people are more remote and winters are long and hard.

“It’s a good model but Europe, I mean, they’re built out much more than we are and they are doing a lot more in building. They’re density of building, the size of their square foot of their homes are much more right size and so these solutions are easier to implement there than they are here I mean we have a lot more big homes that require a lot more heat.”

Our attitudes are different too. It took several years to get Juhnde’s residents to buy into the idea of going off the grid but now most everyone is on board. Here in the U.S. we’re a lot more individualistic. But McMillan still sees a lot of promise in what Juhnde accomplished.

“So one village is a good example but we need to apply it across the board.”


Other villages in Germany are building bio energy plants. In the U.S. a few towns are attempting parts of Juhnde’s efforts. Reynolds, Indiana replaced the town’s vehicle fleet with cars and trucks that run on bio fuel. It’s now working with a company to turn algae into power. And in Grand Marais, Minnesota, they want to build a central heating system for the town that burns wood chips from the local saw mill.

For The Environment Report, I’m Sadie Babits.

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Using Grass for Electricity

  • John Caveny operates a farm in central Illinois. He was one of the state's first cultivators of miscanthus gigantus, a type of grass that can be burned for heat or electicity generation. Caveny predicts biomass will start small but if properly managed and marketed, could become utility scale. (Photo by Shawn Allee)

Energy experts are thinking through
how to replace coal that’s burned
in American power stations. One
alternative is to burn plants,
because they can produce fewer
greenhouse gas emissions. This
is called biomass power. In the
Midwest, there’s talk of growing
millions of acres of grass for biomass.
Shawn Allee looks at whether
the region’s up to the challenge:

Transcript

Energy experts are thinking through
how to replace coal that’s burned
in American power stations. One
alternative is to burn plants,
because they can produce fewer
greenhouse gas emissions. This
is called biomass power. In the
Midwest, there’s talk of growing
millions of acres of grass for biomass.
Shawn Allee looks at whether
the region’s up to the challenge:

One Midwest farmer who grows biomass crops is John Caveny of Illinois. Caveny shows me some gigantic grass called miscanthus.

Caveny: ”You can get an idea of how big it is. It’d be eleven or twelve feet tall right now. and it’s still not done growing.”

Allee: ”It’s pretty sturdy stuff.”

(rustle)

Caveny: ”That’s the thing about it.”

(rustle)

Caveny says you can burn miscanthus and other energy grasses to make electricity. The idea’s to replace coal, which spews carbon dioxide, a greenhouse gas.

”Unlike wind energy or solar that just dispalce fossil carbon use, these plants here, displace fossil carbon use, but in addition they take CO2 out of the air and store it in the soils.”

Energy experts say that’s true, at least for a while. But they say to do much good, lots of utilities need to burn energy grasses. Caveny would love that, but there’s a problem.

Caveny: ”There’s this whole concept of the valley of death.”

Allee: ”I haven’t heard this term. Valley of death?”

Caveny: ”Valley of death is you’ve got a user here and a producer here and you gotta get ’em to match up.”

This valley is a gap between supply and demand for energy grass. It exists because utilities won’t invest in biomass electrical equipment until farmers prove they can grow enough grass. Caveny says farmers will start small.

”You might want to heat a shopping mall or a small strip mall or something like that.”

Caveny says those kinds of projects will make utilities confident in the grass market – and then they’d cross that valley of death. They’ll invest, they’ll buy energy grass and they’ll power suburbs and cities with biomass. That’s his prediction, though.

At a Midwestern farm expo, I find people who say this valley of death is too wide.

Bryan Reggie is showing off equipment that squishes energy grass into briquettes.

Reggie: ”It’s roughly the size of a golf ball, but a cylinder in shape.”

Allee: ”Like a hockey puck almost.”

Reggie: ”Yeah.”

Reggie makes biomass equipment for farmers who want cheap heat, and these grass hockey pucks work.

Allee: ”What, you burn these?”

Reggie: ”Yeah, you burn these in biomass boilers.”

Allee: ”You’d want to heat a farm house or something?”

Reggie: ”Yeah, maybe a green house or larger space.”

Reggie says energy grass could be great for farms, but big-city electric utilities will not cross that “financial valley of death” Caveny talked about. They’d need too much biomass.

”When you get bigger scale, you have to start trucking in all your fuel from long distance. Biomass transportation costs are high, so you want to transport as little as possible. That’s a good reason to keep it small and keep everything local.”

After Reggie’s equipment demonstration, I bump into Steve Flick. He’s with Show Me Energy, a Missouri co-op. Flick is a kind of biomass celebrity because he actually got a coal-fired power plant to test-burn his energy grass. That test worked, but so far no utility has volunteered to give up coal. Flick predicts groups of Midwestern farmers will build tiny power plants.

Flick: ”We think these models would be every fifty to sixty miles apart and the producers that owned those organizations would benefit.”

Allee: ”You wouldn’t necessarily be lighting up St. Louis or lighting up Chicago, right?”

Flick: ”Presently, we’re not trying to settle all the world’s problems, just our little piece of it right now.”

Flick says forget that financial valley of death idea – only energy pundits dream of powering a metropolis with biomass, at least while coal is so cheap.

He says biomass can power a good chunk of rural America, and for now that’s good enough.

For The Environment Report, I’m Shawn Allee.

Related Links

Interview: Coal’s Future

  • A coal mine in West Virginia. (Photo by Erika Celeste)

The coal industry wants us to
believe in the idea of ‘clean coal.’
But burning coal emits a lot of
carbon dioxide, the greenhouse
gas contributing to climate change.
The coal-burning electric power
industry is just now testing technology
to capture CO2 and to permanently
store it. The second round of tests
is happening at American Electric
Power’s Mountaineer Power Plant
in New Haven, West Virginia. Hank
Courtright is monitoring those tests.
He’s with the non-profit Electric Power
Research Institute. Lester Graham
talked with him and asked how the
tests are going:

Transcript

The coal industry wants us to
believe in the idea of ‘clean coal.’
But burning coal emits a lot of
carbon dioxide, the greenhouse
gas contributing to climate change.
The coal-burning electric power
industry is just now testing technology
to capture CO2 and to permanently
store it. The second round of tests
is happening at American Electric
Power’s Mountaineer Power Plant
in New Haven, West Virginia. Hank
Courtright is monitoring those tests.
He’s with the non-profit Electric Power
Research Institute. Lester Graham
talked with him and asked how the
tests are going:

Hank Courtright: We think it has great progress, it’s really the second step of a multi-step process that we’re doing. We had just concluded a project up in Wisconsin on a smaller scale, the same type of technology, and it was very successful. It capture 90-plus percent of the CO2 that passed through it and saw some great promises as far as reducing the cost of doing it. The idea here is that we’re scaling it up ten times larger at the mountaineer plant and so far the early results seem very good and we’ll continue to test that over a year plus to see how it does produce.

Lester Graham: I understand it takes a lot more energy to run this extra CO2 capture equipment, as much as 30% more coal has to be burned to generate the same amount of electricity, what’s being called a parasitic load. What’s this going to mean for our power bills?

Hank: Well, what we’re trying to Lester is that the parasitic load gets down into the, let’s say, the 10 to 15% range. If you get to that level, it means that the electricity out of a coal plant might be about 25% higher than it is. But right now coal is basically the cheapest form of producing electricity, so it still ends as being an economical option even if you might be increasing the cost of that coal plant by about 25%.

Lester: If they can accomplish that with this experiment, how long will it take to get this technology built into the bulk of coal burning power plants?

Hank: Well, you’re going to be working over this for several decades, really. If this plant at Mountaineer works well, our thinking is around 2020 you’re going to be able to have most new coal power plants use the carbon capture and storage. And you might be able to retrofit about 20%, 25% of the existing plants in the United States with this type of technology.

Lester: If all of these methods fizzle, we can’t capture carbon economically, or at the other end, we can’t find a way to sequester this carbon underground, or whatever type of method they can come up with, what’s next?

Hank: Well, that causes some difficulties because right here in the United States coal is used to produce about half our electricity. And if it doesn’t work on coal, it’s also the issue that it won’t work on any other fossil fuels such as natural gas, which produces about 20% of our electricity. So you’re into a difficult situation that if you’d wanted to significantly reduce the CO2 emissions to improve the climate change issue, then you’d have to be looking at a combination of probably nuclear power and a very large roll out of renewable energy. Both of those would have to take the lion share of electricity production. But our hope is that we can get this working because it is not only here in the US that you need it on fossil fuels of coal and gas, but also in places like China, Russia, India, Australia, country’s that very large reserves of coal and hope to use those natural resources.

Related Links

Cleaning Up Coal’s Future

  • Lester Graham at the coal mine Shay #1 in Macoupin County, Illinois. He's interviewing the mine general manager Roger Dennison. (Photo courtesy of Phil Ganet)

The coal industry is hopeful
an old technology will help
them clean up an increasingly
unpopular fuel. Lester Graham
reports, without it, coal faces
an uncertain future:

Transcript

The coal industry is hopeful
an old technology will help
them clean up an increasingly
unpopular fuel. Lester Graham
reports, without it, coal faces
an uncertain future:

[Editor’s Note: The script for this story will be posted shortly.]

Related Links

Storing Carbon Underground

Burning fossil fuels such as
oil and coal creates carbon
dioxide. CO2 contributes
to climate change. Samara Freemark reports
some scientists say we could
capture the emissions from
smokestacks and put in in the
ground – and they think they’ve
found a good place:

Transcript

Burning fossil fuels such as
oil and coal creates carbon
dioxide. CO2 contributes
to climate change. Samara Freemark reports
some scientists say we could
capture the emissions from
smokestacks and put in in the
ground – and they think they’ve
found a good place:

It’s called carbon capture: collecting CO2 from smokestacks, liquefying it, and piping it underground for permanent storage.

A big question is exactly where to bury the carbon dioxide so it doesn’t escape.

A new study from Rutgers University says one good place might be the underwater lava formations that run all along the eastern seaboard.

Dennis Kent is one of the study’s authors. He says the formations are full of basins that could double as CO2 reservoirs. And they’re conveniently close to population centers.

“You have to get it from the power plant to wherever the reservoir is. So having it closer would be an advantage. Take the Co2 down the road somewhere and lock it away.”

The study measured the capacity of one basin off the coast of New Jersey. It found the basin could hold a gigaton of carbon dioxide- or, the amount of gas a coal-burning power plant produces in four decades.

For The Environment Report, I’m Samara Freemark.

Related Links

Power Plant Tests Carbon Capture

When it comes to global warming,
America’s in a bind. Almost half
of our electricity comes from coal.
But, compared to other power sources,
coal produces the most carbon dioxide,
a greenhouse gas. Industry’s testing
so-called ‘clean coal’ technology to
deal with the problem. Shawn Allee has this update on a test
project that has some hard work
left to do:

Transcript

When it comes to global warming,
America’s in a bind. Almost half
of our electricity comes from coal.
But, compared to other power sources,
coal produces the most carbon dioxide,
a greenhouse gas. Industry’s testing
so-called ‘clean coal’ technology to
deal with the problem. Shawn Allee has this update on a test
project that has some hard work
left to do:

If you live outside coal-mining country, you may have missed this news about a clean-coal project in West Virginia.

“A big announcement has the state and members of the coal industry very excited about the future of the state’s most valuable resource. Good Evening, I’m April Hall…“

The fanfare’s about a company called American Electric Power. Last fall, AEP started a test that could begin a clean-coal revolution.

“The Mountaineer power plant in Mason County is going to be the first facility in the world to use carbon capture and sequestration technology to cut down on the carbon dioxide that that plant emits. AEP is hoping the implementation …“

The Mountaineer test project made headlines because there’s talk of clamping down on America’s carbon dioxide emissions. Coal produces nearly twice its own weight in carbon dioxide. So, if we could bury or sequester the stuff that would help solve the coal industry’s carbon dioxide problem. Expectations are high, but the company is keeping its cool.

“The tension we’re fighting against is the fact that you can’t go from concepts on paper to commercial scale in one step.“

Gary Spitznogle runs an engineering division for AEP, and if you think he sounds cautious, it’s because he is. Spitznogle says AEP needs to validate carbon capture and sequestration.

“Validation is kind of that intermediate step between what is truly research work and full commercial scale.“

Validation is another way of saying this technology mostly works but let’s take it for a spin. Let’s run bigger and bigger tests, so we learn more and more.

“The test is treating the amount of gas that would be coming from a 20MW generating unit, so that’s very small.“

From 20 megawatts now to two hundred fifty megawatts in a few years – that’s still less than a quarter of the power generation at the Mountaineer plant.

But what’s the point of tests like this? Well, there’s a problem with carbon capture and sequestration: it wastes coal. This waste is called parasitic load. Parasitic – as in parasite.

Spitznogle: “And because it’s taking the power it’s consuming from the generating plant that you’re controlling, it’s in a sense a parasite of that power plant.“

Allee: “Sounds kind of nefarious.“

Spitznogle: “The reason is that it’s such a focus is that, no matter what technology you look at, the number is large.“

Carbon capture and sequestration equipment need power. That adds a parasitic load of thirty percent onto a coal plant. That means it takes thirty percent more coal to generate the same amount of electricity for customers. Spitznogle needs to find out if his technology cuts that parasitic load figure. Other people hope he finds out, too.

“The overarching concern I would have today is urgency.“

Ernest Moniz runs MIT’s Energy Institute. He says if power companies don’t get a handle on parasitic load we’re in for higher utility bills. One estimate puts the cost of clean-coal power at seventy percent above today’s prices. Moniz says we need bigger tests and more of them.

“We’re pushing up against the envelope and we have to do it. If we’re going to be serious about using our extensive coal reserves in a time of carbon constraints, well, then we have to just demonstrate this technology.“

If we fail to demonstrate clean coal technology, the choices aren’t good. We’d have to abandon our cheap coal supplies or we’d burn dirty coal, then deal with the costs of climate change.

Talk about parasitic load.

For The Environment Report, I’m Shawn Allee.

Related Links

Interview: A Pound of Coal

  • Coal train. (Photo courtesy of the Energy Information Administration)

When you turn on the lights,
there’s a pretty good chance
you’re burning coal. Almost
half of the nation’s electricity
comes from coal. Burning coal
causes the greenhouse gas,
carbon dioxide. But, have you
ever wondered how much?
Lester Graham got a pound of
coal, and then talked to Ezra
Hausman. He’s
the Vice President of Synapse
Energy Economics in Cambridge,
Massachusetts. The first question –
how long would a pound of coal
light up a hundred-watt incandescent
light bulb?:

Transcript

When you turn on the lights,
there’s a pretty good chance
you’re burning coal. Almost
half of the nation’s electricity
comes from coal. Burning coal
causes the greenhouse gas,
carbon dioxide. But, have you
ever wondered how much?
Lester Graham got a pound of
coal, and then talked to Ezra
Hausman. He’s
the Vice President of Synapse
Energy Economics in Cambridge,
Massachusetts. The first question –
how long would a pound of coal
light up a hundred-watt incandescent
light bulb?:

Ezra Hausman: Well, you haven’t told me where you got that pound of coal. Uh, it makes a big difference if it’s from the Appalachian region or the Western region, such as Wyoming in the United States. The Appalachian coal, Eastern coal, would burn a light bulb for about, uh, 10 or 12 hours. A pound of Western coal would only burn it for about 5 or 6 hours.

Lester Graham: There’s that much difference?

Ezra: There’s a big difference in the energy content of the coal, that’s correct.

Lester: And coal, a good portion of coal, is pure carbon. What kind of CO2 omissions would we expect from this one kind of coal?

Ezra: Well, a pound of coal is, let’s say, it’s about half carbon. So that would be a half a pound of carbon, but for every atom of carbon you add two atoms of oxygen from the air. So, you get for every 12 grams of carbon, you get 44 grams of carbon dioxide. That’s basically just how the chemistry works out when you burn carbon and oxygen; it produces carbon dioxide in that ratio.

Lester: So, this one pound of coal, would admit, by weight, more CO2 than I have in my hand here?

Ezra: That’s right; it would end up admitting about two pounds of CO2. Depending again on where the coal came from and how much carbon is in it.

Lester: Now my environmentalist friends would like to see no more coal plants built, no more coal burning power plants built, simply because of the CO2 emissions. The coal industry tells me they’re working on clean coal; there are experiments going on right now to find ways to sequester CO2 and other experiments going on how to store it underground. What do you think is the future of coal?

Ezra: Well, first of all, I think it’s important to say that there is no such thing as clean coal today. So in the first place, coal mining is an extremely environmentally damaging and dangerous process. The high volumes techniques that are now in use including strip-mining and mountain top removal have devastating consequences on mining regions. And secondly, while there are techniques in place that eliminate many of the regular pollutants such as sulfur and nitrogen from coal combustion, there is no current technology that can significantly reduce the amount of CO2 emitted from power plants.

Lester: What do you see as the future of coal and power generation from coal in America in the future?

Ezra: Well, I think we really have no option but the phase out the use of coal for power generation over the next several decades. The problem with coal is not that each pound has so much carbon; the problem is that there is just a vast reservoir of carbon and potential carbon dioxide in the coal reserves under ground in the United States.

Ezra Hausman is Vice President of Synapse Energy Economics.
He talked with The Environment Report’s
Lester Graham.

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