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Saturday, January 4, 2020

Wind turbine noise concerns described in detail, by a 2018 New Zealand investigation

Wind turbine
low-frequency 
noise, and 
lower frequency
infra-sound noise, 
interfere with 
sleeping, and 
otherwise
enjoying
the comforts 
of homes
near wind farms 
... and some 
not so nearby
homes too.

Wind power 
companies
coerce people
into signing 
‘good neighbor 
agreements -- 
signing away 
all rights 
that might 
protect them, 
in exchange 
for a few 
thousand 
dollars a year.

The next line in the 
wind industry’s 
‘defense’ to threats 
of legal action 
is to quietly purchase 
victims' properties, 
using bullet-proof 
gag clauses 
to shut them up.

In the US, actions on 
wind farm nuisances 
pursued by neighbors 
have gotten as far as 
having the jury impaneled 
– only to be settled 
before the plaintiffs 
got to tell their stories, 
of intolerable suffering, 
to the wind industry, 
and a jury of their peers.

The wind industry 
destroys value 
of neighboring 
properties, with the
active encouragement 
of governments and 
regulators who want 
more wind power.

The farmers 
who do business 
with the wind 
energy companies, 
renting out their land,
get noise problems
from very nearby 
wind turbines,
that quite a few
regret later.



I have written about 
the subject of 

Summary 
of those 
articles:
As a member of 
an audiophile club,
from the mid-1980s
to mid-1990s, I had 
a lot of experience 
with do it yourself
subwoofer bullders,
and the effects of 
high sound levels 
under 30Hz. 
( cycles per second )
on club members.

Infrasound 
frequencies 
affect your body
directly -- not
your ears.

Our ultra low
frequencies 
were from 
movie soundtrack
sound effects, and 
electronic music,
that were 
supposed
to be fun.

And those 
sounds 
were fun 
for most 
members,
but they 
negatively 
affected
some of us,
including me.


The repetitive 
noises that
come from 
wind turbines,
are not "fun"
in any way.

Infrasound
is below 20 Hz., 
officially, 
but I believe 
below 30Hz.
is a better
definition,
for sound 
that penetrates
homes easily,
and can then 
be amplified
within a room,
or within a home, 
by resonating 
the air within 
a room, or home,
( there are bass frequency
resonances, at 
frequencies related 
to interior dimensions
--  every physical object 
has a resonant frequency ).


IS  THERE  ANYTHING
YOU  COULD  DO 
AT  HOME ?
People who 
normally fall asleep 
in a silent room,
will have the most 
serious problems.

Unfortunately,
you can NOT mask
infrasound noises
by simply turning
on a clock radio 
next to your bed.

Two potential ways
to mask the noise,
would NOT appeal
to many people:

(1)
Fall asleep 
while listening 
to a music CD, 
on a good audio
system. 

(2) 
Fall asleep with
a forced air furnace
fan set to move air
all night long.



Infrasound 
will pass
though walls,
and can be louder
inside a home,
than outside.

Infrasound can 
easily travel 
several miles. 



My description 
of infrasound
noise may not 
tell you enough,
if you have never
experienced it.

So I found one 
wind farm noise
investigation, 
where the people
involved gave
good descriptions:

A 2018 New Zealand  
investigation into 
Bald Hills Wind Farm 
noise complaints 
found that neighbors’ 
health concerns
are legitimate. 

The investigation 
was commissioned
by the South Gippsland 
Shire Council, 
at a cost of $33,600.

They were
investigating the
Noise Complaint 
Notifications, 
by residents 
living near the
Bald Hills 
Wind Farm

The investigation 
was done by
James C. Smith 
and Associates.

It found:
“That there is a consistency with the information contained in the completed log books and with subsequent discussions held with Mr Zakula, Mr and Mrs Fairbrother, Mr and Mrs Jelbart, and Mr Uren about their individual experiences with wind farm noise during that period."

“Without exception there are allegations that the wind farm noise is audible inside their individual homes and, as a result, there is sleep disruption during the night and early morning hours." 

"There are also allegations that the wind farm noise is disruptive to daytime domestic and work activities."

“A particular difficulty in undertaking the investigation was to predict noise patterns based on weather forecasts and the experience of residents." 

"It became apparent that noise patterns were unpredictable and highly changeable."

"However, on 24th and 25th July 2018, wind farm noise was clearly audible in the Zakula and Jelbart dwellings, with windows and doors shut, between the hours of 6.50pm and 9.40pm and 7.40pm and 8.40pm respectively."

“In the case of the Jelbart dwelling the noise level increased to a point where it intruded into conversation between investigators and Mr and Mrs Jelbart thus, corroborating that wind farm noise was clearly audible in dwellings and, at times, intrusive."

“It seems likely then that such noise could be heard over a television, or radio as had been recorded in some noise logs, and reported in discussions with Mr and Mrs Jelbart, and Mr Uren."

"It is noted that a noise mitigation strategy was in place at the wind farm at the time. This strategy was described by the wind farm operator as ‘… comprising a select number of wind turbines operating at reduced sound modes for a limited range of wind speeds and directions’."

“It is clear from the investigation that noise from the wind farm is audible within residences although there are noise monitoring reports stating that there is compliance by the wind farm with permit conditions and the New Zealand Standard 1998, and with a noise mitigation strategy in place at the wind farm."

“The noise was clearly audible in Mr Zakula’s dwelling at night time twice and in the Jelbart residence at night time twice and this is held to be unreasonable in both cases."

“The experience at the Jelbart residence on 24th and 25th July 2018 whereby wind farm noise intruded on conversation within the residence at night time is seen to be detrimental to personal comfort and the enjoyment of the residential environment by Mr and Mrs Jelbart."

“After consideration of the completed noise logs by individual complainants and subsequent discussions with some of these individuals it appears there is a nuisance caused by wind farm noise, in that, the noise is audible frequently within individual residences and this noise is adversely impacting on the personal comfort and wellbeing of individuals.”

Operators of the 
Bald Hill Wind Farm’s 
      52 turbines, 
have been provided 
with the 25-page report 
and attachments, 
which include 
contemporaneous 
comments by the 
wind farm neighbors, 
such as:

“woken up at 4am”, 

“woken up at 2am 
roaring sound”, 

“woken up at 4am 
roaring / rolling noise” 

“woken up at 3.30am 
could get 
back to sleep, 
got up at 7am 
could still hear 

noise through radio”.