Company Turns Waste Juice Into Energy

  • Millions of gallons of wastewater is produced by cleaning operations at the Welch's. Some of the sugar in the wastewater is being used to make electricity. (Photo by Lisa Ann Pinkerton)

Tiny single-celled organisms could become the giants of
energy production in the near future. Scientists are
using bacteria to convert waste into hydrogen energy.
Lisa Ann Pinkerton recently watched a vat of microbes
turning wastewater into electricity:

Transcript

Tiny single-celled organisms could become the giants of
energy production in the near future. Scientists are
using bacteria to convert waste into hydrogen energy.
Lisa Ann Pinkerton recently watched a vat of microbes
turning wastewater into electricity:


More than 17 million gallons of grape juice is sitting in what amounts to be a huge
refrigerator. It’s Welch’s grape juice ready to be bottled. About the size of a
gymnasium, the cooler’s covered with tile and the juice is stored in big
stainless steel tanks.


Paul Zorzie is the plant manager. He says they have to regularly clean the
tanks. And first they rinse them with water to clean out the remaining juice:


“Juice would be anywhere from 10 to 20 percent
sugar, so what goes down the drain might be .3.”


Since there’s still a little bit of grape juice and sugar in that wastewater, it can
still be used. Behind the plant, the faint smell of grape juice wafts from a
bubbling tank of wastewater. It looks kinda like a purple jacuzzi. In a nearby
shed, Gannon University Professor Rick Diz has built a pilot system to covert
the sugar in that grape juice wastewater into electricity. With the help of the
Ohio biotechnology firm NanoLogix, he’s coaxing millions of microorganisms
to consume the sugar and produce hydrogen:


“The sort of bacteria that produce hydrogen and
actually other bio fuels of one sort or another just
love sugar. Just like for people, sugar is the easiest
thing to digest for many organisms.”


Diz says if you keep introducing food that sugar from the watered-down grape
juice, the microbe population will double every 24-48 minutes. He’s trying to
keep the conditions just right to encourage hydrogen-producing microbes to
grow, while at the same time discouraging methane producing ones. They feed
on hydrogen, and it can be a careful balancing act.


When the microbes produce enough gas, the pressure trips a switch and the
hydrogen is pumped into a slender, high-pressure holding tank:


“And so far we’re been quite successful. We are in fact
producing hydrogen gas, we have used that gas to run an
engine that generated electricity for us on just a
demonstration purpose.”


You can imagine, there are all sorts of industries that create waste sugar
water, from fruit juices, and sodas to candy makers. So there’s lots of
potential to generate hydrogen and then electricity from residual sugar in
wastewater.


But, Diz says the Welch’s system is the only one in the US to successfully do
this outside a laboratory setting. The Welch’s plant in Erie, Pennsylvania
spends about one-and-a-half million dollars a year for electricity and
wastewater treatment each. It hopes a large-scale project that Diz will build
this spring can put a dent in those bills:


“Welch’s is certainly one of the first companies that we’ve hear of who’s expressed
interest in producing hydrogen from microorganisms.”


That’s Patrick Serfass at the National Hydrogen Association. He says
developing renewable ways to generate hydrogen is ideal for a greener energy
sector. But the methods have to be economically worth it:


“The trick is to make the leap from the laboratory to real world applications, and using the hydrogen to either produce
electricity or meet some other energy need.”


Serfass says if Welch’s makes good on it’s plans to built a large demonstration
bio reactor it’ll be a major step for renewable hydrogen and an example to the
rest of the nation’s over 200 beverage makers and bottlers.


For the Environment Report, I’m Lisa Ann Pinkerton.

Related Links

Clearing the Air for Wind Turbines

  • Wind turbines can capture the power of wind along ridgelines, but environmentalists worry government restrictions are not strong enough to protect birds that fly along the ridgelines. (Photo by Lisa Ann Pinkerton)

The process for protecting wildlife from new wind turbines varies by state and sometimes within states. Lisa Ann Pinkerton reports wind developers and the
federal government say that is hindering the nation’s ability to take advantage of this renewable energy:

Transcript

The process for protecting wildlife from new wind turbines varies by state and sometimes within states. Lisa Ann Pinkerton reports wind developers and the
federal government say that is hindering the nation’s ability to take advantage of this renewable energy:


The federal government is looking into wind turbine guidelines on two states,
California and Pennsylvania, and they couldn’t be more different. California’s
guidelines restrict wind farms from certain areas and hold them responsible
for the deaths of any wildlife, such as birds that run into the spinning blades.


In Pennsylvania, the guidelines are voluntary and if they’re followed, they exempt the wind
turbine developers from fines for wildlife deaths. Along the western edge of
the Appalachians there’s a ridgeline that stretches from the top of
Pennsylvania all the way to Maryland. There are breathtaking views of rolling
hills and farmland.


And we’re at one lookout point, called Shaffer Mountain. Veterinarian Tom Dick is
here counting migrating birds for the Audubon Society. Watching a pair of
broad wing hawks soar by, he says the wind here creates invisible highways:


“The wind is coming out just right, they found the lane, they’re making no
movement at all. They have a long migration to central and South America, and they
want to make it as effortless as possible, so they’re using the energy of the wind.”


That wind energy is attractive to wind turbine developers, too. Less than a
mile away, the Spanish wind turbine manufacturer, Gamesa plans to build a
30-turbine wind farm.


Tom Dick is against the project. He says the US Fish and Wildlife Service
discourages wind farms on migratory corridors like Shaffer Mountain:


“They just don’t want to see them on there, but there’s no teeth in the laws today.”


The laws Dick refers to is called a “Voluntary Agreement.” And nearly every Wind
Developer in the US has signed on. They agree to work closely with the state
conservation agencies to reduce impacts to wildlife. And in exchange,
Pennsylvania shields developers from liability if animals happen to die as a
result of the proposed wind farm.


Developers like this working relationship with Pennsylvania’s Game
Commission. They know what’s expected of them and they can adjust their
plans as wildlife problems arise. Tim Volk is Gamesa’s Shaffer Mountain
Project Coordinator and he says spring bird migration data the state required, has
already reshaped the project:


“So that lead us to set some of our windmills back about 400 feet to avoid any
potential impact to them.”


Critics say protecting developers from liability rather than protecting wildlife
from death is the opposite of what Pennsylvania should be doing. But
advocates for renewable energy say without such assurances, wind
development in the US will never live up to its potential.


Mark Sinclair heads the Clean Energy States Alliance:


“Every wind project is going to kill a couple of birds. It will happen. The problem right
now is that these wildlife laws are so strict, they really create a financial and
development challenge for wind projects.”


Sinclair says Pennsylvania’s system is the best in the nation, while guidelines
recently released in California might hinder development there:


“There’s less of incentive in California for a developer to follow these guidelines, because, what do I
get out of it? No permit and no guarantee the state won’t go after me for killing
several birds unintentionally.”


California’s guidelines are intended to assist local governments in deciding
where turbines should and should not go, but to use them is optional, and
wind turbine developers still responsible if they end up killing a lot of birds.


Everyone acknowledges that federal guidelines are needed and while some states
want more protection for their wildlife, other states like Texas don’t consider it
an issue. So for the next two years, a federal committee plans to weigh all
the options. It’s made up of representatives from various states, the wind
industry, the Audubon Society, and research scientists. Whatever
guidelines the committee develops, US Fish and Wildlife officials predict the
protection from liability that Pennsylvania has established will play a
prominent role.


For the Environment Report, I’m Lisa Ann Pinkerton.

Related Links

New Push for ‘Green Collar’ Jobs

  • A solar panel installation training program run by Grid Alternatives. (Photo by Kristi Coale)

A new employment program is tying the need low-income people have for
good-paying work to the imperative of meeting the nation’s growing energy
demands. The “green jobs” movement trains out-of-work people and former
blue-collar workers to install solar, wind and other alternative energy
systems at homes and businesses. Kristi Coale reports what started as a
local program might soon be coming to the rest of the nation:

Transcript

A new employment program is tying the need low-income people have for
good-paying work to the imperative of meeting the nation’s growing energy
demands. The “green jobs” movement trains out-of-work people and former
blue-collar workers to install solar, wind and other alternative energy
systems at homes and businesses. Kristi Coale reports what started as a
local program might soon be coming to the rest of the nation:


It’s a sweltering, sunny day – one when people are encouraged to reduce
their energy use. And so it’s fitting that a small group of young adults is
busily installing solar panels on the roof of a house.


People honk their car horns as they drive past this house. Solar power is
supported here in California. The workers on the rooftop stop to cheer, clap,
and pump their fists in response. The atmosphere here is electric. And that’s
to be expected because these young trainees, like Andre Collins, are the
embodiment of a vision, one that takes low-income people, often people of
color, and trains them to work in the fast-growing alternative energy
industry.


“They’re green jobs, because they’re healthy and right for the people and the
environment and they’re green also because they’re taking the people who
would otherwise be poor and putting green in their pockets.”



Andre Collins is one of 15 people who are completing a 9-week training
program in solar panel installation. This program is run by Grid Alternatives,
a non-profit that installs solar in low-income communities. Grid uses
volunteers recruited by local youth employment and job training
organizations. This installation is a graduation of sorts and so these trainees
are thinking about the job market.


“I’m just proud to be a part of this, and I can’t wait to make money.”


Some non-profits are stepping up to make training programs like this
possible. So are cities. The city council in Oakland, California approved a
quarter of a million dollars for such a program, a sum that’s possible thanks
to a settlement between energy companies and the State of California. Six
years ago, when rolling blackouts hit California, companies such as Enron
raised their rates. While Enron and others didn’t admit to any wrongdoing,
they gave the state one billion dollars. Some of that money is being used to
train lower-income people in what’s come to be known as green jobs…
installing solar panels and tankless hot water heaters, converting vegetable
oil to fuel.


Renewable energy industries are worth big money, already 40 billion dollars
a year worldwide. These new industries hold the promise of putting tens of
thousands of people to work in the U.S. Van Jones is president of the Ella
Baker Center for Human Rights. He says support for green jobs is redefining
the environmental movement:


“…A social uplift environmentalism that is less about the Birkenstocks and
the tofu, though that stuff is all beautiful. It’s more about the hard hat, the
lunch bucket, more of a working class, we-can-do-it environmentalism I
think is the next step in the environmental revolution.”


Jones is leading that revolution in cities like his hometown of Oakland,
which has fallen on hard times. Jones says what’s missing in struggling blue-
collar cities like Oakland are good-paying, skilled labor jobs, jobs that used
to come through unions.


“And it’s time to really rebuild the labor movement with we think the new
face of working class America which is more Latino, more black, more
Asian and also with a new consciousness around doing things in a more
ecologically smart way.”



Oakland is the first city to declare a green jobs corps. But there could be
many more. Cities across the country might get a chance to start their own
programs, thanks to pending federal legislation:


“This bill will allow for three million workers here to be able to enjoy this
kind of training and advancement.”


That’s California Congresswoman Hilda Solis describing a bill she’s
authored in a YouTube video. The Green Jobs Act of 2007 proposes to
dedicate a half a billion dollars to train people to do green collar work. This
fall, the U.S. Senate will take up Solis’ bill. Many believe creating green jobs
will not only revitalize the economy and the environment, but also reinsert
something that has long been missing from these communities: hope.


For the Environment Report, I’m Kristi Coale.

Related Links

Part 2: Tidal Power in the Atlantic

  • A team from Verdant Energy attempts to install a turbine. (Photo courtesy of Verdant Energy)

An emerging industry has begun to harness the motion of waves, tides, and currents.
On the East Coast, several companies are already testing various technologies to
capture this new form of renewable energy, often called tidal power. While tidal
power is still in its infancy, companies studying it say it could
eventually be more profitable and more environmentally-friendly
than other forms of renewable energy. Amy Quinton reports:

Transcript

An emerging industry has begun to harness the motion of waves, tides, and currents.
On the East Coast, several companies are already testing various technologies to
capture this new form of renewable energy, often called tidal power. While tidal
power is still in its infancy, companies studying it say it could
eventually be more profitable and more environmentally-friendly
than other forms of renewable energy. Amy Quinton reports:


(Pare:) “Coming in it hits this shore pretty heavy, going out it hits the
Newington shore pretty heavy, it is a dramatic roar. It really is.”


Jack Pare, a retired aerospace systems engineer, points to the water
under the Little Bay Bridge in Dover, New Hampshire. Here, tides
from the Great Bay move quickly through a narrow opening to the
Piscataqua River – at almost nine feet per second at its maximum.


Pare sits on a state commission that will study tidal power generation
here under the bridge:


“It’s just one of many things you have to do if you want to – quote – ‘save the
planet’ or otherwise cut down on our carbon emissions.”


Renewable energy experts say energy from tides, currents and
waves could double the hydropower output in the U.S., producing
20% of the nation’s electricity. Right now, only one company
is producing tidal power so far in the United States.


A little known start-up called Verdant Power has six underwater
turbines, resembling windmills, in the East River in New York. Founder
Trey Taylor says those turbines can generate power 18 hours a day:


“That power is then put directly into a supermarket and a parking
garage. Oh and by the way, in that parking garage in New York City there are
electric vehicles that plug into tidal power, which we think is pretty
cool.”


Taylor foresees a time when 300 of these underwater turbines will
power about 8,000 homes in New York. Verdant Power has also
spent more than two million dollars putting high-tech equipment in
the water to test how fish would react to the slow moving turbines:


“All we’re seeing so far, and this is all recorded, is what we were told by fish biologists who we went to who did some modeling, is that fish would swim through them because they’re moving so slowly or that fish will swim around them. And what we’re seeing is, fish are swimming around them because there’s a lot of separation between the turbines.”


But Jack Pare points out the turbine technology that works well in
New York’s East River might not be appropriate for the Piscataqua:


“We have deep water shipping, we have harbor seals, we have stripers
and we have lobster, none of which are present on that other site. And so there’s
a little bit more to be careful of.”


But another company studying tidal power on the East Coast has
come up with a type of technology that may alleviate that problem.
Oceana Energy, which holds permits along the Piscataqua River, has
technology that looks like a large wheel, with an open center.
Project Manager Charles Cooper says that allows marine mammals
to swim through:


“The open center approach we think is both more environmentally
friendly and likely less costly and also likely to be able to be scaled to
different sizes and generate a lot for the amount of
hardware that has to be put together.”


But Cooper says each site is different, and Oceana remains open to
using other companies’ technology. He says tides in the Piscataqua
could theoretically produce about 100 megawatts of power,
enough for about 100,000 homes:


“That’s a substantial amount of power but I think that’s not really the main
emphasis of this type of development, this is going to be something that can be looked at as supplemental to the real base load energy generation.”


Cooper says while east coast tides have less strength than those on
the west coast, they come with more regularity and typically
surround heavily populated areas.


Verdant Power officials believe the renewable energy will eventually
be profitable – an early analysis shows tidal power costing Verdant
seven to eight cents per kilowatt hour.


Those energy costs are slightly higher than natural gas and fuel oil.
And so far, Verdant has produced that without government
subsidies.


For the Environment Report, I’m Amy Quinton.

Related Links

Interview – Greening the Business World

Some businesses once considered
‘bad actors’ by environmentalists are now being
praised for leading the ‘corporate greening’
movement. Lester Graham spoke with an advisor who
helped some of those companies, John Elkington.
Elkington is the founder of the consulting firm
SustainAbility. He says not all corporations have
realized the importance of becoming more
environmentally-friendly at the same time:

Transcript

Some businesses once considered
‘bad actors’ by environmentalists are now being
praised for leading the ‘corporate greening’
movement. Lester Graham spoke with an advisor who
helped some of those companies, John Elkington.
Elkington is the founder of the consulting firm
SustainAbility. He says not all corporations have
realized the importance of becoming more
environmentally-friendly at the same time:


JE: Around the world, different regions are in very different places
and companies are in different places as a result of that. In the
United States you’ve had a period of, to some degree on issues like
climate change, denial. And that’s beginning to break down, and it’s
breaking down very rapidly. So you see companies, for example in the
financial sector like Goldman-Saks, talking about the environment and
green issues in a very, very different way than they would’ve done a
few years ago.


You see General Electric, which hasn’t been a great ally of
environmental movement, launching it’s Ecomagination initiative. And
initially, people dismissing that very much as greenwash, but when you
look at the numbers, very serious growth going on inside that business
and some of these areas. And then, perhaps to top it all, you see Wal-
Mart, most peoples’ sort of bogey company in a way, announcing some if
its initiatives around renewable energy, energy efficiency, sustainable
fisheries and so on. And in a sense, it almost doesn’t matter whether
Wal-Mart is serious or genuinely wanting to go green or whatever. This
stuff is starting to cascade through the supply chain. They have 61,000
vendors, these companies around the world. And the work that we do with
companies, they’re saying, whether they’re 3M, or Dupont, or Dow…
they’re saying this company is serious and it’s driving us to do things
we hadn’t previously thought were possible.


LG: Let’s look at consumer level. I think typically, most people are
not spending a lot of time researching which brand of corn flakes is
most carbon-free or sustainable. I think most people make their
decisions on commercials or packaging at the store. How can they make
better choices about sustainable products or companies?


JE: You’re absolutely right. I think most people rely on things like
brands. I mean, they trust a brand or they don’t and they hope a brand
will deal with environmental or fair trade or whatever issues
appropriately. But there are certain moments when things start to speed
up, and this is one of them, and then a different set of actors come
in.


I mean, traditionally, the activist campaigning groups, the NGOs, and
so on, play an incredibly important role in denting brands or building
the credibility of particular brands. And increasingly you get these
standards around environmental and fair trade issues. But I think
actually the key actors at the moment – this is certainly true in
Europe and my own country, the United Kingdom – you’re seeing
supermarkets getting involved again. They did it in the late 80s, early
90s, they played a very important role. That has a huge knock on
impact.


LG: Let’s talk about the energy sector for just a moment. We’ve seen a
lot of renewable energy being built around the world lately. But we
seem to see a lot of power companies, some oil companies still digging
in their heels and fighting tooth and nail to keep things just the way
they are. Are we going to see a sea change in the energy sector like we
are beginning to see in many of the other sectors of the economy?


JE: That’s a very difficult question to answer because I think you’re
going to see several different trends at the same time. You’re going to
see for example, the coal industry, Peabody and people like that,
digging in and saying basically, we’re going to burn a huge amount of
coal. Yes it’s going to have to be clean coal but you’re going to have
that trend. You’re going to have the Exxon Mobiles of this world trying
to look a bit more civilized and say we’ve been misunderstood, we’ve
got to communicate better and so on… But basically still, anti-
climate change is a big issue.


And then you’ve got a bunch of actors. In Europe, you’ve got companies
like Statoil, BP, Shell, who’ve actually gone through that tipping
point quite a number of years back, basically believe climate change is
a reality… Still thing fossil fuels is a very large part of our
energy future, but still starting to explore renewables and energy
efficiency and so on. So I think you’ve got a differentiation and I
don’t think this is an issue of leopards changing their spots. I mean,
some of the companies that are finding this very difficult to deal with
will continue to find it very difficult to deal with even if they
become a bit more sophisticated on the communication front.


HOST TAG: John Elkington is the founder of the consulting firm
SustainAbility. He spoke with the Environment Report’s Lester Graham.

Related Links

Taxpayers Subsidizing Record Ethanol Profits

The nation’s leading food processor is making big profits from ethanol. Archer Daniels Midland has had two straight years of record profits. And in its latest quarter, the company nearly set another record. Dustin Dwyer has more:

Transcript

The nation’s leading food processor is making big profits from ethanol. Archer Daniels Midland has had two straight years of record profits. And in its latest quarter, the company nearly set another record. Dustin Dwyer has more:


ADM’s profits on corn processing, which includes ethanol production, more than doubled in its latest quarter. Total profits for the period were about $400 million.


Daniel Kammen studies energy policy at the University of California – Berkeley. He says while ADM is making lots of money from corn-based ethanol, future profits could go to companies that make ethanol from switchgrass and other woody products.


“It’s really the first companies that switch into cellulosic sources that I think are going to be the big winners, because they’re going to capture the environmental prize as well as the offsetting gasoline prize.”


ADM executives have laid out a new strategy that includes plans to expand ethanol production from fuel sources other than corn.


Daniel Kammen notes that there might not even be a market for ethanol if not for government subsidies, which also helped ADM reap its bigger profits.


For the Environment Report, I’m Dustin Dwyer.

Related Links

Windmills Generate Jobs and Power

  • A windmill blade nearly 150 feet long is slung gently onto a flatbed at the Duluth port. A modified trailer is needed to transport the blade. (Photo courtesy of Stephanie Hemphill)

U.S. demand for clean energy is growing fast. In fact, wind energy developers are ordering so many windmills, they’re running into a supply problem. Windmill manufacturers overseas have been shipping their products to the booming U.S. market. That’s already created some jobs, and now there are plans to build factories to produce windmills here. It’s all happening in spite of inconsistent federal support. Stephanie Hemphill reports:

Transcript

U.S. demand for clean energy is growing fast. In fact, wind energy developers are ordering so many windmills, they’re running into a supply problem. Windmill manufacturers overseas have been shipping their products to the booming U.S. market. That’s already created some jobs, and now there are plans to build factories to produce windmills here. It’s all happening in spite of inconsistent federal support. Stephanie Hemphill reports:


At the Duluth Port Terminal, the BBC India is tied up to the dock. Two giant cranes slowly lower a silvery propeller onto a waiting truck. The blade is half as long as a football field. The extended bed of the eighteen-wheeler isn’t long enough to hold the entire length. A padded steel structure cradles the narrow end above the ground. There are 66 blades on the ship, three blades for each of twenty-two towers.


“The three blades will bolt into a hub, and then the hub attaches to the nacelle, the generator package, that’s the actual turbine, and the nacelle sits on top of the tower.”


Andrew Holdrup is the port captain for the shipping company. He was here in Duluth a year and a half ago, when the port handled its first ever shipment of windmills.


Holdrup says the demand for windmills is huge in the U.S.


“We have four ships; all they do is run from Denmark to Houston with Siemens windmills. We discharge them in Houston, the ship sails back empty to go pick up the next lot. Multiply that by all the other ports, and all the other windmill manufacturers, and it’s a huge business.”


It’s great business for Duluth’s port. Unloading the windmills requires iron workers to cut the steel where the pieces have been welded to the ship, and crane operators, and longshoremen. And truckers are staying in town waiting to pick up their loads. They’ll haul the windmills to wind farms being built in Mower County, Minnesota, and Oliver County, North Dakota. The port has also handled equipment for wind farms in Manitoba.


The boom in wind was primed in the early 1990s, when Congress set up a production tax credit for wind power. It allows a 1.9 cent-per-kilowatt-hour tax credit over ten years, for electricity produced by wind.


But the tax credit only runs for two years at a time. Ron Johnson is in charge of marketing for the Duluth Port Authority. He says that on-again, off-again approach has made it hard for businesses involved in wind energy to plan and grow.


“It’s kind of start up again, stop, start up again, stop. If you’re a trucking company with these specialized trailers, you don’t want to go out and buy fifty more of them if there’s a chance your whole fleet’s going to sit until Congress decides what to do.”


Johnson says there’s a lot of support in Congress for the tax credits, and he expects them to be renewed.


Steve Stengel works for FPL Energy, the company building the wind farms where these windmills are headed.


“It is part of the business, we understand that. And it does cause kind of starts & stops, if you will.”


But he says it’s possible to work around the periodic breaks in the tax credit because it takes a long time to plan a wind project anyway.


“Permitting issues, land lease issues, transmission issues. We have to plan as if the tax credit is going to be there.”


In fact, wind is growing dramatically in spite of the iffy nature of federal support. Several states now require utilities to invest in renewable energy, or offer incentives for wind power development. And as the cost of fossil fuels goes up, the relative cost of wind goes down.


It all adds up to a lot of demand, and recently, tight supplies.


The American Wind Energy Association’s Susan Sloan says orders are already in place for 2008 and beyond.


“Because of this boom and bust cycle but also because of this new acceptance of wind, we are seeing a tighter supply, and we need to have the manufacturing capabilities catch up.”


And that’s what’s happening.


It took two weeks for the Siemens windmills to sail from Denmark to Duluth. Now the company is building a factory in Fort Madison, Iowa. Siemens says it will employ 250 people, and start producing in the first half of 2007.


And in Pipestone, Minnesota, Suzlon, a company based in India, is about to start producing three blades a day, and the nosecones to go with them. The company plans to manufacture the electronic controls, and eventually employ up to 300 people. Suzlon says it has orders for the next two to three years.


For the Environment Report, I’m Stephanie Hemphill.

Related Links

Windmills Generate Jobs and Power (Wrap)

  • A windmill blade nearly 150 long is slung gently onto a flatbed at the Duluth port. A modified trailer is needed to transport the blade. (Photo courtesy of Stephanie Hemphill)

US demand for clean energy is growing so fast, supplies of generating systems are getting tight. Stephanie Hemphill reports on a challenge that could lead to more jobs in the US:

Transcript

US demand for clean energy is growing so fast, supplies of generating systems are getting tight. Stephanie Hemphill reports on a challenge that could lead to more jobs in the US:


Overseas manufacturers of wind generating systems are shipping them here as fast as they can. Now, several companies are building wind generator factories in the US.


Siemens is building a plant in Iowa. Suzlon is about to start production in Minnesota. Plants in Texas produce blades and towers.


It’s all happening in spite of inconsistent federal support. A production tax credit is in place, but it expires every two years.


Ron Johnson is with the port of Duluth, which handles windmill imports. He says the on-again, off-again support makes it hard for companies to plan and grow.


“Well, the deadline’s coming at the end of next year, and people are planning their projects, so we’re all anxious to see what Congress does.”


The American Wind Energy Association says producers are installing enough wind power this year to power the entire state of Rhode Island.


For the Environment Report, I’m Stephanie Hemphill.

Related Links

Pros and Cons of Offshore Wind Farms

  • While the tower is around 3 miles north of Cleveland's shore, a viable wind farm would need to be at least 6 times farther out in Lake Erie. The wind monitoring tower measures the speed, direction, and height of Lake Erie's wind to determine if wind power generation on the lake is economically viable. (Photo courtesy of Lisa Ann Pinkerton)

Proposals for offshore wind farms, from the coasts of Texas to New England have the potential to generate more electricity than land turbines do. Lisa Ann Pinkerton reports these projects face various hurdles to becoming reality, but they’re not completely insurmountable:

Transcript

Proposals for offshore wind farms, from the coasts of Texas to New England have the potential to generate more electricity than land turbines do. Lisa Ann Pinkerton reports these projects face various hurdles to becoming reality but they’re not completely insurmountable:


Over the past few months, whenever the weather is favorable, Aaron Godwin of Green Energy Ohio rides a power boat several miles out into Lake Erie. Out on the on the city of Cleveland’s century old water intake structure he’s built a tall wind monitoring tower.


“The upper part of the tower is about 168 feet above the water, so we’re measuring at about 30, 40 and 50 meters, and dual instrumentation at each level, anemometers that measure wind speed and vanes that measure direction.”


Godwin’s got almost a year of wind data and today he’s installing a small wind turbine to confirm what he’s discovered: that the lake’s wind is roughly twice as strong as wind on land. So to Godwin offshore wind farms are inevitable, especially since 75 percent of the nation’s energy use is near coastal cities.


However, proposed projects everywhere face a number of hurdles. One of them is bird and bat migration. Some land turbines have killed creatures that flew too close. But in Denmark, where offshore wind is 15 years old, extensive water foul surveys show little change in bird behavior. Charlotte Boesen is an environmental planner for Dong Energy in Denmark.


“These birds, they do fly around the wind farm. They do not like flying over land you can say and maybe they in some sort they perceive the turbines or wind farm as a similar object.”


Even so, no wind project in the US will ever get off the ground without a full assessment of potential wildlife impacts. That’s why 60% of Lake Erie has already been ruled out by a preliminary study conducted by the wind consulting firm AWS True Wind. Its Executive Director Bruce Bailey says that leaves most of eastern Lake Erie still available, with the best wind about 15 miles northwest of Cleveland.


“That’s where the strongest winds would be found. With water depths still being under say 70 feet.”


Bailey adds the shallow depth of Lake Erie combined with its solid lake bottom and fresh water makes it more friendly to offshore wind generation than oceans.


“You wouldn’t have to deal with the corrosion or the extra cost to safeguard your hardware from corrosion if you’re sighted in a fresh water lake.”


Bailey adds designing against hurricanes makes ocean projects more expensive. On the flip side, Lake Erie’s been known to freeze.


“There are ways to deflect the ice from actually pushing too strongly against or lifting out a turbine foundation. Some of them have already been deployed already in offshore projects in Northern Europe, and some of them are located in locations where you might even get icebergs.”


Another concern is whether these turbines will ruin the natural beauty of America’s Coastlines, even though on the horizon a turbine might only look a big as a thumbnail. Walt Musel of the US Department of Energy says this worry is unfounded.


“It’s worth noting there are no projects in the United States, so most people who object to offshore wind have never seen one.”


Fifteen years ago, projects in Denmark faced the same prejudice. Today tourists rent boats to go see them.


Above all, perhaps the largest impediment to offshore wind power is its high cost. Installation in water is expected to be double the cost of on land construction. However, once farms are producing power, electricity companies are open to buying it.


Out on Lake Erie, Aaron Godwin is packing up his tools for the day. He says there is an up side to those high capital costs. He says in the future, turbines will be so large it’ll make more sense to manufacture the parts locally, giving America’s manufacturing industry a ray of hope.


“Energy is a guaranteed growth market. Wind power is the fastest growing energy sector in the entire world. Why would you not want to get involved in that guaranteed growth market? It just does not make sense.”


Godwin says if the US can clear these hurdles of public perception, engineering, and environmental impacts, he thinks the US economy might find a pleasant surprise: consistent, green energy, built and harnessed off the blue coasts of America.


For the Environment Report, I’m Lisa Ann Pinkerton.

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Promoting a New Biofuel Crop

Most efforts to reduce dependence on foreign oil have been focused on alternative energy sources like solar, wind, or corn-based ethanol, but some conservationists have another crop in mind: grass. Brad Linder reports:

Transcript

Most efforts to reduce dependence on foreign oil have been focused on alternative energy sources like solar, wind, or corn-based ethanol. But some conservationists have another crop in mind: grass. Brad Linder reports:


Scott Singer is on a mission to promote switchgrass as an alternative to fossil fuels. Singer’s a wildlife biologist with the US Department of Agriculture. He says the tall grass grows in most parts of the US, even in harsh conditions such as when there’s a drought.


Most importantly, Singer says switchgrass can easily be converted to fuel that’s cleaner to burn than coal. He says it’s a good crop to grow, because it takes less time to plant and harvest.


“You also reduce energy use for farmers out there, saving them money and basically saving energy which is generally fossil fuel driven in the field.”


Singer’s working on a pilot project to demonstrate the technology. He says fuel pellets made from switchgrass can be used in stoves that usually burn wood or power plants that usually burn coal.


For the Environment Report, I’m Brad Linder.

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