What it’s like to live in the middle of an industrial zone

Friendly notice in neighbour’s mailboxes:

17 thoughts on “What it’s like to live in the middle of an industrial zone

  1. “As with any tall structure”..??? I don’t know of any other tall structures that “THROW” ice at people standing at otherwise safe distances. Sounds like more BS to me. Or is this how they “minimize” the danger? Assume you will leave your property when icing conditions occur?

  2. What an idiotic notice. I thought turbines were to be shut down when icing conditions might prove to be a danger, and that these were to be built in such a manner that the public on public property is not endangered and that they are far enough away from private non-leased residents’ land not to pose this danger. In any of the above cases it is the Industrial Wind Farm operator’s liability of damage/injury occurs. Too bad for the landowner if he gets hit, he is on his own with the company.

    • Quite a reasonable notice actually…

      If you get brained by a chunk of flung ice, crippled or killed — then presumably the courts will side with the turbine operators and land owners — as you really should have read the notice and kept your distance.

      You can read those notices form 300 meters away — right? and 550 meters from the turbine — isn’t that so? So keep your distance and all will be well .

      If the turbine is closer than 550 meters — like the CAW version, if they post a notice then clearly you are required to abandon your home to remain safe.

      It’s all quite clear, really. No problem.

      • It’s called a ‘get out clause’ !!!!!! aka “dont sue us cos we warned you” !!!!! GAH

  3. Vestas used to have a document that said in case of ice throw stay 500 M away, our idiots in Essex disregarded it and allowed turbines 50M from lot lines and roadways. One wonders what they were thinking? GE had one on safety for ice throw also, why can the wind industry in Ontario disregard these warnings? Duncan, Smitherman and McGuinty, the 3 stooges gave them the okay

  4. Introduction
    As with any structure, wind turbines can accumulate ice under
    certain atmospheric conditions, such as ambient temperatures
    near freezing (0°C) combined with high relative humidity, freezing
    rain, or sleet. Since weather conditions may then cause this ice to
    be shed, there are safety concerns that must be considered during
    project development and operation. The intent of this paper is to
    share knowledge and recommendations in order to mitigate risk.
    The Risk
    The accumulation of ice is highly dependent on local weather
    conditions and the turbine’s operational state.[2,4] Any ice that is
    accumulated may be shed from the turbine due to both gravity
    and the mechanical forces of the rotating blades. An increase in
    ambient temperature, wind, or solar radiation may cause sheets or
    fragments of ice to loosen and fall, making the area directly under
    the rotor subject to the greatest risks[1]. In addition, rotating turbine
    blades may propel ice fragments some distance from the turbine—
    up to several hundred meters if conditions are right.[1,2,3] Falling ice
    may cause damage to structures and vehicles, and injury to site
    personnel and the general public, unless adequate measures are
    put in place for protection.
    Risk Mitigation
    The risk of ice throw must be taken into account during both
    project planning and wind farm operation. GE suggests that
    the following actions, which are based on recognized industry
    practices, be considered when siting turbines to mitigate risk for
    ice-prone project locations:
    • Turbine Siting: Locating turbines a safe distance from any
    occupied structure, road, or public use area. Some consultant
    groups have the capability to provide risk assessment based on
    site-specific conditions that will lead to suggestions for turbine
    locations. In the absence of such an assessment, other guidelines
    may be used. Wind Energy Production in Cold Climate[6] provides
    the following formula for calculating a safe distance:
    1.5 * (hub height + rotor diameter)
    While this guideline is recommended by the certifying agency
    Germanischer Lloyd as well as the Deutsches Windenergie-
    Institut (DEWI), it should be noted that the actual distance is
    dependant upon turbine dimensions, rotational speed and
    many other potential factors. Please refer to the References
    for more resources.
    • Physical and Visual Warnings: Placing fences and warning signs
    as appropriate for the protection of site personnel and the public.[4]
    • Turbine Deactivation: Remotely switching off the turbine when
    site personnel detect ice accumulation. Additionally there are
    several scenarios which could lead to an automatic shutdown
    of the turbine:
    – Detection of ice by a nacelle-mounted ice sensor which is
    available for some models (with current sensor technology,
    ice detection is not highly reliable)
    – Detection of rotor imbalance caused by blade ice formation
    by a shaft vibration sensor; note, however, that it is possible
    for ice to build in a symmetric manner on all blades and not
    trigger the sensor[2]
    – Anemometer icing that leads to a measured wind speed
    below cut-in
    • Operator Safety: Restricting access to turbines by site personnel
    while ice remains on the turbine structure. If site personnel
    absolutely must access the turbine while iced, safety precautions
    may include remotely shutting down the turbine, yawing to place
    the rotor on the opposite side of the tower door, parking vehicles
    at a distance of at least 100 m from the tower, and restarting the
    turbine remotely when work is complete. As always, standard
    protective gear should be worn.

      • IWT devlopers are being forced out into the open about icing dangers and they need to be forced out into the open about the lightning dangers from IWTs.

      • The lightning strike danger is compounded by the high amounts of composite material in the IWT. The wind company experts at the public meetings state, better grounding will solve the issue but this is untrue.Being a poor conductor composite materials when struck produce a much higher temperature due to the higher resistance. This higher temperature causes the materials to combust. This is the same reason the aerospace industry is limited to the amount of composites that can be used in aircraft fuselage to reduce weight. Normally lightning just passes through the plane. The 50 story IWT not only makes an excellent lightning rod in its rural surrounding but depending what part it hits causes a wide variety of grief. Like a roulette wheel spinning, if the composite blade is at the high point 150 feet above the grounded mast when the strike occurs. Black being burnt out and Red being fire.

    • Thanks Rob for the additional information. In the case of branch lightning one branch can strike the turbine while another branch/branches can strike nearby objects. Everyone has seen branch lightning across the sky and knows what it is. Combine this with the fact that the part of Ontario slated for the bulk of IWT installations is one of the lightning capitals of the world. One evening this past summer in the Lake Erie area lightning flashes lasted for over 3 hours.

  5. Wind turbines in the Bathurst area of NB were shut down for at least 1 month this past year due to ice build up on the blades. You can well imagine that a chunk of ice could be thrown a good distance if the blades were to continue turning.

  6. erm, think the word is ‘velocity’ goes back to school studies going by my memory …. wonder if “THEY” considered that before destroying our lands with these monsters?????

  7. What about the turbines close to the 401? While travelling to Windsor recently I noticed how close some of them have been built to the highway.

    A few years ago some of the streets and sidewalks near the CN tower in Toronto were shut down for days due to falling ice. Some vehicles had been seriously damaged, and it’s a miracle no pedestrians were killed.

    Even if they shut down the turbines, the ice can blow significant distances. Will they shut down the 401?????

  8. How about your own warning or notice of understanding sign “Do Not Throw Ice /Your Responsibility ” If they can write signs so can we, the 99 percenters.

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