Evolving Story of Wind
The more we invest in wind
power, the better it gets
by Terence P Ward
Talk of wind power conjures up visions of massive turbines
stretching for miles out west, or offshore
projects such as Cape Wind, which is
set to begin construction in Nantucket Sound. Wind might be considered one of
the best and worst understood sources of energy: on one hand, it's not
difficult to see how moving air can be turned into electricity; on the other,
the consequences of building that infrastructure are complex. Wind resources in
the Hudson Valley can't support wind farms like the ones out west and proposed
for offshore development, but nevertheless the number of locals who are
generating or using wind power is growing.
Not surprisingly, the best places to harness wind power is
at higher elevations. Doug Passieri, president of Pine Plains-based Hudson
Valley Wind Energy, LLC (hvwindenergy.com), specializes in the siting and
installation of wind turbines to power individual farms and residences. He
cautioned against assuming that a property's wind potential is self-evident.
"If you go to Red Hook, for example, you might not find any suitable
properties because it's all flat," while a mountainous town may have many
suitable locations. Wind speed and direction changes with elevation, therefore
it's not always obvious from the ground how much energy can be produced before
an assessment is made. In a best-case scenario "a turbine could support a
small farm or single residence entirely, producing 10,000 kilowatt hours a
year," he said, or the equivalent of "an electricity bill of $150 to
$200 a month."
Wind is still at the expensive end of the technology curve,
and largely depends upon rebates and tax credits to make it affordable in the
short run. Passieri said that the 10,000-kilowatt-hour turbine in his example
might cost a hefty $75,000 to install, with $35,000 coming back to the owner
through various grant programs; compare that to a similarly-sized solar array,
which could cost $35,000 and about $12,000 back. Owners can also write off the
installation costs from federal income taxes over five years, and of course,
eliminate their electricity bill.
There are even smaller-scale wind turbines, such as the one
mounted atop H. Houst and Son hardware store in Woodstock two years ago.
Co-owner Jodie Houst says that it powers "about half the lights in the
store," but isn't expected to pay for itself for several more years.
Small-scale, site-specific turbines are where the wind power
is being generated in the Hudson Valley, agrees Stephen Stuart, co-executive
director of the Sullivan Alliance for Sustainable Energy
(sullivanalliance.org). However, a forward-thinking plan such as what the SASD
is promoting in Sullivan County can also yield potential sites for larger,
community-owned or commercial wind projects.
"We commissioned a county-wide study of the wind to
determine where we might find resources for community-owned wind farms, as well
as site-specific turbines for municipal buildings, manufacturers, and other
commercial buildings," Stuart said. "People say, 'It's always windy
here,' but you need a consistent speed of wind to generate power."
SASD performs site assessments of individual lots, using
tools provided by the New York State Energy Research and Development Authority
(NYSERDA), which is also the main governmental underwriter of alternative
energy projects locally. Like Passieri, Stuart says that the numbers must make
sense in order for a project to move forward. "We need to make sure that
wind is a solid investment for you."
Living in the Hudson Valley, many people are not in a
suitable location to generate their own wind power. But they can still consume
the renewable power, at least indirectly, according to Christine Dempsey, an
independent associate with Viridian Energy, a third-party energy supply company
that focuses on greener energy production. Her customers can choose to purchase
either 50% or 100% of their energy from wind farms. While the electricity
flowing into their homes doesn't necessarily come directly from a wind farm,
the purchase of wind power replaces electricity in the grid that comes from
other sources, such as coal-fired power plants, and contributes to the
"greening" of the entire system.
But wind has its own resistance, some of which comes from
others concerned about the environment. In the Ulster County town of Denning,
actor Judd Hirsch's neighbors are lined up in opposition to his plan to build a
turbine to power his home, saying that its height (177 feet) and noise (43
decibels, according to the manufacturer) would be too disruptive to the rural
landscape. Other concerns include the long-term health effects of living near a
turbine, both for nearby humans and bird populations, and safety hazards posed
by icing on the blades or a turbine catching fire.
While Hirsch is reportedly dismissive of his neighbors'
concerns, telling the New York Times that, "Behind it, I believe, is the
pollution of jealousy and the pollution of stupidity," Stuart is more
respectful, and prefers to engage in the debate with facts, such as the study of
40 wind farms and how they impacted birds.
"They found that there were fewer than four bird deaths
per megawatt per year," Stuart said, and even that number is reduced by
new designs and siting criteria. Wind farms which were built in migration paths
"are shut down for that part of the year," he said.
There's so much resistance that proponents maintain a
website to address concerns, www.truthaboutwindpower.org. On the bird question
specifically, it says that some 200,000 birds collide with turbines each year,
and compares that number with those killed flying into buildings (97-970
million) and cell phone towers (up to 50 million).
Dempsey thinks that the wind industry will only benefit from
increased regulation, saying that laws would put people's minds at ease.
"There is a lot of truck traffic when turbines are being constructed.
People are concerned about low-frequency sound or a strobing effect on sunlight
if they're built too close to their homes. I'm not an engineer, but the idea of
regulation seems logical. The industry is pretty free and unregulated right
now."
While sometimes controversial, interest is blowing wind's
way.





