Tag: demand

Harvesting the Wind (Part 1)

  • Wind turbines can be both a blessing for farmers, as a source of extra income... and annoying to the neighbors. (Photo by Lester Graham)

Wind farms of huge turbines are springing up along coastlines,
windy ridges and blustery farmland. Most of us see them from a distance.
The Great Lakes Radio Consortium’s Chris Lehman recently visited some
of them up close… and has the first of two reports on wind energy:

Transcript

Wind farms of huge turbines are springing up along coast lines, windy ridges and
blustery
farmland. Most of us see them from a distance. The Great Lakes Radio Consortium’s
Chris
Lehman recently visited some of them up close… and has the first of two reports on
wind energy…


If you can imagine the sight… there are 63 wind turbines scattered across the
prairie farmland,
their huge blades sweeping around, capturing energy from the wind. Each turbine is
213 feet
high. You can see them from miles around. But it isn’t until you stand directly
underneath the
80-foot long blades as they rotate in the wind that you begin to appreciate their size…


(sound of wind from underneath turbine)


“This is probably a typical day. They’re probably producing at about 30 percent of
what they are
rated at, and probably on average, for a year, this is what you’d expect.”


Christopher Moore is Director of Development for Navitas Energy. The Minnesota- based
company opened the Mendota Hills Wind Farm in northern Illinois just over a year ago.


Q: “What are some of the highest levels that you’ve reached?”


“Each turbine is capable of producing 800 kw, and there are times when we’ve had the
windfarm
working at about maximum.”


Moore says the Mendota Hills Wind Farm produces enough electricity to power about 15-
thousand homes per year. It’s the first wind farm in the state of Illinois.


Brian Lammers is a Project Manager for Navitas Energy. He says the location is
ideal since it’s
windy here nearly all year long…


“The wind here is more robust in the fall, winter and spring. So we have more
production during
those months than we do during June, July, August.”


Unfortunately, the summer months are the months that most often experience peak
demand for
electricity. Because of that, and because it takes so many windmills to generate
lower amounts of
power, it’s unlikely that current wind energy will completely replace fossil fuel
generated power.


(sound of turbines)


On the flat prairies of Illinois, the giant turbines are the tallest structures for
miles around. You
begin to wonder about things like lightning strikes…


“We might have experienced one or two last year. The turbines are protected from
lightning. The
entire wind farm is grounded, so if there is a strike typically it will just be
grounded down to the
ground grid. There’s typically no long-term damage associated with a lightning
strike. But as you
can imagine, they’re the tallest structures around so there are periodic lightning
strikes.”


Q “What about a tornado? This is tornado country…what would happen if one came
through
here?”


“I don’t know. These turbines are built to withstand everything but a direct strike
from a tornado,
so I think the same thing would happen to a wind turbine that would happen to any
large
structure if they were struck by a tornado. You’d probably have some significant
damage.”


(fade up sound inside turbine)


Inside the turbine, there’s a distinct hum as the blades whirl away at the top of
the hollow shaft.
It’s about ten feet across at the base, and a metal ladder allows anyone brave
enough to climb all
the way to the top.


Despite the hum of the turbine’s blades up close, the sound fades away just a few
dozen feet from
the tower. But noise isn’t much of a concern for this wind farm. It’s in the
middle of a soybean
field and there are no neighbors nearby.


Noise is just one of the aesthetic concerns for neighbors of wind farms. Appearance
is another.
The Mendota Hills turbines are coated with a special paint that appears white in
bright sunshine.
But when the sun’s not out, the turbines appear grey, and seem to blend in with the
cloud-covered
sky.


Dennis Cradduck has 19 of the turbines on his corn and soybean farm. He says the
wind farm
hasn’t been a problem. Of course, he’s getting paid by Navitas for allowing the
turbines on his
land. But he says the wind farm has led to an unexpected benefit: getting to meet
people from
across the country who pull off the highway for a closer look…


“We get people almost on a daily basis that drive by on the interstate and see them,
and stop and
want to look at them, and they’re amazed at them, and most—about 99 percent of them
have been
positive comments. In fact, one fellow from North Carolina stopped the other day
and said ‘I wish
we’d build more of these around the country because we need renewable energy.'”


The prospect of more renewable energy is appealing to most environmentalists. But
some worry
that wind farms can be deadly to birds. A study by the National Wind Coordinating
Committee
found that wind turbines kill an average of two birds per year.


Another concern is that windmills disrupt the scenery. But the only view around
here is farmland
as far as the eye can see. And on this brisk day, it isn’t just corn and soybeans
being harvested: it’s
the power of wind.


For the Great Lakes Radio Consortium, I’m Chris Lehman.

Related Links

“Smart Meters” Installed to Save Energy

A growing number of electricity customers in Ontario are
using so-called smart meters, which will charge more for electricity
used during peak hours of the day. The Great Lakes Radio Consortium’s
Karen Kelly reports:

Transcript

A growing number of electricity customers in Ontario are using so-called smart
meters, which
will charge more for electricity used during peak hours of the day. The Great Lakes
Radio
Consortium’s Karen Kelly reports:


Right now, electricity customers in Ontario pay the same amount to run their
dishwasher at 6 p.m.
– during peak hours – as they do at ten in the morning. But it costs the province
more to produce
that power during peak times.


The heavy demand is a strain on Ontario’s aging electricity plants. So, the
province plans to
install smart electricity meters in every home and business over the next five years.


Ted Gruetzner is with the Ontario Ministry of Energy.


“It allows people to track their energy use depending on the time of day and monitor
when they’re
using power so they can turn their lights off at certain times or use their ovens or
dryers at
different times of day.”


That’s because electricity used during peak hours will cost consumers more. Ontario
is the first
jurisdiction in North America to use this system.


For the Great Lakes Radio Consortium, I’m Karen Kelly.

Related Links

Lack of Investment in Renewables to Hurt Businesses?

  • Mike LeBeau installs solar and wind energy systems. He has put in more generators this year than in the last 10 years combined, thanks to rebate programs offered by the state and local governments. (Photo by Stephanie Hemphill)

Representatives of nearly 200 countries recently met in
Argentina to work out the next steps in dealing with climate change.
Seven years ago, many nations agreed to reduce fossil fuel emissions
and greenhouse gases. The U.S. didn’t agree to reduce its emissions.
Now, a report from the National Environmental Trust says that decision
is hurting American businesses. The Great Lakes Radio Consortium’s
Stephanie Hemphill reports:

Transcript

Representatives of nearly 200 countries recently met in Argentina to
work out the next steps in dealing with climate change. Seven years
ago, many nations agreed to reduce fossil fuel emissions and
greenhouse gases. The U.S. didn’t agree to reduce its emissions.
Now a report from the National Environmental Trust says that
decision is hurting American businesses. The Great Lakes Radio
Consortium’s Stephanie Hemphill reports:


Mike LeBeau installs wind generators and photovoltaic solar
collectors. His business, Conservation Technologies, is in Duluth,
Minnesota. In the U.S., there are not a lot of contractors doing this
kind of work.


“This is a two and a half kilowatt photovoltaic system.”


Two panels about the size of a dining room table stand on the top
floor of a downtown garage. The only other equipment is an inverter
– a metal box the size of a shoebox – that transforms the direct
current from the solar panels to the alternating current we use in our
homes.


“The electricity is produced here by the sun, fed into the wiring in the
building here, and any excess is distributed out onto the utility grid.”


The solar panels were made in Japan. And the inverter is from
Germany.


LeBeau has been installing systems like this for ten years. Demand
was slow until a year ago, when Minnesota started a rebate program.
LeBeau has put in more generators this year than in the last ten
years combined.


With another rebate offered by the local utility, LeBeau says the cost
of installing a typical system can be cut nearly in half.


And he says the increased activity has persuaded some of the
naysayers to help rather than hinder renewable energy projects.


“Now the electrical inspectors don’t have any choice – it’s being
supported by the utilities, and by the state of Minnesota, so it’s really
changed the atmosphere and the climate that we work in.”


But LeBeau says the state rebate program is a drop in the bucket
compared to what’s being done in other countries.


Christopher Reed agrees. He’s an engineer who advises individuals
and businesses on renewable energy projects. He says U.S. policy
has been piecemeal and erratic. For instance, there’s a federal tax
credit for renewable energy production. But it’s only in place for a
year or two at a time.


“When the incentive is out there, everybody ramps up as fast as they
can, and we slam projects in to meet the deadline before the credit
expires, and then everybody sits until the credit gets reintroduced
again. This has happened three times now.”


Reed says that discourages long-term investment.


Reed’s business is one of several American firms studied for the
report from the National Environmental Trust. The report says Japan
and most countries in Europe are providing major and consistent
incentives to encourage production of renewable energy. The report
says this approach is saving money, creating jobs, and putting
businesses in a position to export their new technologies and
expertise.


Reed says he’s frustrated to see European and Japanese companies
thrive, using American inventions such as photovoltaic, or PV,
technology, while American manufacturers fail.


“It’s almost embarrassing. The PV technology, that came out of Bell
Labs in the U.S. We should be the world leaders.”


But some observers say the worry is overblown. Darren McKinney is
a spokesman for the National Association of Manufacturers. He says
the U.S. has nothing to fear from German or Japanese businesses.
He says fossil fuels are doing a good job of stoking the American
economy.


“The fact of the matter is that wind and solar and biomass and
geothermal simply aren’t ready for prime time. If someone wants to
make an argument ‘well, they could be ready for prime time if they
received x-amount of tax cuts,’ I won’t necessarily argue against that
because I don’t know enough about the technologies. What I do
know is it would be cutting off our nose to spite our energy face if we
turn our backs on fossil fuels.”


Right now, oil and natural gas get the lion’s share of federal subsidies
in the U.S. Subsidies for renewable energy sources are very small in
comparison. As other countries shift to new technologies, American
companies could be left behind.


For the Great Lakes Radio Consortium, I’m Stephanie Hemphill.

Related Links

Report: Renewable Energy Can Kickstart Job Growth

  • Turbines like these not only could help produce energy from a renewable and seemingly infinite resource, but could also create thousands of new jobs, according to the Union of Concerned Scientists.

A new report says a national renewable energy policy could create thousands of new jobs in the Midwest. The Great Lakes Radio Consortium’s Erin Toner reports:

Transcript

A new report says a national renewable energy policy could create thousands of new
jobs in the Midwest. The Great Lakes Radio Consortium’s Erin Toner reports:


The report by the Union of Concerned Scientists urges Congress to adopt a policy
requiring 20 percent of the nation’s energy to be produced using renewable sources
by the year 2020. Those sources could be wind, solar, or geothermal energy. The report
says such a policy could create thousands of new jobs in manufacturing, construction and
maintenance.


Jeff Deyette is an energy analyst with the Union of Concerned Scientists. He says
rural communities – especially farmers – could be the biggest winners under the proposal.


“Farmers that were chosen to have wind power facilities sited on their land could get up
to as much as $4,000 per turbine to lease on their property.”


Deyette says a national renewable energy standard could save consumers nearly 50 billion
dollars by 2020. He says that’s because increased competition from renewables would help
lower the demand and the price of natural gas.


For the Great Lakes Radio Consortium, I’m Erin Toner.

Related Links

Biologists Find Deer Devouring Rare Flowers

  • Largeflower bellwort (Uvularia grandiflora) is one of the wildflowers declining at many of the sites studied by University of Wisconsin researchers. (Photo courtesy of Dave Rogers, UW Herbarium)

Most of us think of the white-tailed deer as a graceful and cherished part of the natural scene. But it turns out when there are too many deer, it’s bad for some of the plants in the forest. New research suggests deer may be a prime culprit in a worrisome loss of rare plants in the woods. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:

Transcript

Most of us think of the white-tailed deer as a graceful and cherished
part of the natural scene. But it turns out when there are too many
deer, it’s bad for some of the plants in the forest. New research
suggests deer may be a prime culprit in a worrisome loss of rare
plants in the woods. The Great Lakes Radio Consortium’s Stephanie
Hemphill reports:


Gardeners in many suburbs and rural areas know deer are good at
mowing down hosta, tulips and other favorite plants. In the woods,
deer munch on the small plants that live on the forest floor… plants
such as orchids, lilies, and other wildflowers.


Fifty years ago, researchers at the University of Wisconsin surveyed
hundreds of acres in the state, and made careful records of the plants
on those sites. In those days, the deer population was a lot lower
than it is now. In the last couple of years, two biologists went back to
many of those same sites and counted the plants living there now.


Tom Rooney says at most sites they found fewer different kinds of
plants.


“It tends to be the same species occurring over and again on the site.
You’re losing the rare species and picking up more and more
common species.”


He says they tried to link the decline in rare species to the fact that
the forest is getting older. But they found no evidence for that.
Instead, lead researcher Don Waller says the evidence points to
deer, which have increased dramatically over the last fifty years.


“The worst changes we’ve seen, ironically were in a couple of state
parks and a protected natural area, that showed losses of half or
more of species in 50 years. However, in these sites there was no
deer hunting, implying high densities of deer may be causing a lot of
the effects we see in the woods.”


Plants that rely on insects for pollination declined more than other
types of plants. Waller thinks it might be because the insect-
pollinated plants have showy flowers, which could catch the eye of a
wandering deer. As the flowering plants decline, the insects and
birds that rely on them for food could decline as well – bees, moths,
butterflies, and hummingbirds.


Waller says it’s worrisome because scientists don’t know how
particular insects and plants work together to support each other.


“As we’re losing parts of the ecosystem, we’re really not sure what
their full function is, they might play some crucial role we’re not aware
of and only too late might we become aware of the fact that this loss
led to an unraveling or threats to other species.”


Waller says the only places they studied that still have a healthy
diversity of plants are on Indian reservations. The Menominee Tribal
Forest in northeastern Wisconsin is pretty much like it used to be fifty
years ago.


(forest sounds under)


In this forest, there are only about ten deer per square mile. That’s
about as low as the deer population gets in Wisconsin. It’s not that
the tribe is hunting more deer; it’s the way the forest is grown.


Deer find lots to eat in young aspen woods; there’s less for them to
eat where pines and oaks and maples grow. Don Reiter is the wildlife
manager here. He says in the 360 square miles of the Menominee
forest, there’s really four different types of woods.


“We have pulpwood, we have northern hardwoods, white pine, red
pine, and again, the forest ecosystem as a whole, there’s plenty of
food out there for the deer.”


And because there aren’t too many deer, young pines and hemlocks
– and orchids and lilies – have a chance to grow.


In the upper Great Lakes states, wildlife officials have been trying to
thin the deer herd for several years. That’s because state officials
have been aware deer were causing problems by eating too many
plants. The recent study provides dramatic evidence.


In Minnesota, for instance, hunters are shooting four times the
number of deer they shot fifty years ago.


Steve Merchant is forest wildlife program consultant for the
Minnesota DNR. Merchant says the agency has liberalized its rules,
to encourage hunters to kill even more deer. But the number of
hunters hasn’t gone up in recent years. And lots of private
landowners post no-hunting signs.


“We need to have some help from people, people still need to get out
and hunt deer, and landowners need to provide that access for
people to harvest deer.”


Merchant says Minnesota is gradually trying to restore pine forests,
which were cut down for lumber and replaced with fast-growing
aspen. More pine forests could cut down on the deer population…


“But as long as we still have the strong demand for the aspen
markets that we do, and we manage those aspen forests in a
productive manner for wood fiber, we’re going to create a lot of good
white-tailed deer habitat.”


Merchant says it would take decades to change the woods enough to
reduce the deer population. And in the meantime, we’re losing more
and more of the rare flowers.


For the Great Lakes Radio Consortium, I’m Stephanie Hemphill.

Related Links

Natural Gas Shortage Causes Controversy

The government is expecting shortages of natural gas in the next year. A combination of factors has caused reduced inventories of natural gas. Environmentalists say the Bush administration is trying to take advantage of the situation by calling for more drilling on public lands. The Great Lakes Radio Consortium’s Lester Graham reports:

Transcript

The government is expecting shortages of natural gas in the next year. A combination of
factors has caused reduced inventories of natural gas. Environmentalists say the Bush
administration is trying to take advantage of the situation by calling for more drilling on
public lands. The Great Lakes Radio Consortium’s Lester Graham reports:


In a letter to U.S. Senators, Energy Secretary Spencer Abraham indicated natural gas
must be conserved this summer by switching to coal or other fuel sources. Abraham also
suggested to boost supplies, the government should allow more drilling for natural gas on
federal lands. Some environmentalists see this as opportunistic. Patricio Silva is an
attorney with the Natural Resources Defense Council.


“We think that it’s reprehensible that the White House and some of their industry
supporters are using this opportunity to help subsidize the industry by giving away
billions of taxpayer dollars so that companies can drill and develop more of our protected
public lands.”


The shortage of natural gas is due to reduced storage capacity, hurricanes in the Gulf of
Mexico which stopped natural gas production, and low prices which curtailed
exploration. Inventories are down by 29-percent and prices are rising quickly.


For the Great Lakes Radio Consortium, this is Lester Graham.