The Town Board of the Town of Winneconne adopts this chapter to promote
the effective and efficient use of wind energy conversion systems (WECS) and
to regulate the placement of wind energy conversion systems so that the public
health and safety will not be jeopardized.
As used in this chapter, the following terms shall have the meanings
indicated:
OVERSPEED CONTROL
A mechanism used to limit the speed of blade rotation to below the
design limits of the WECS.
SITE
The plot of land where the WECS is to be placed. The site could be
publicly or privately owned by an individual or a group of individuals controlling
single or adjacent properties.
SWEPT AREA
The largest area of the WECS which extracts energy from the wind
stream. In a conventional propeller-type WECS, there is a direct relationship
between swept area and the rotor diameter.
TOTAL HEIGHT
The height of the tower and the furthest vertical extension of the
WECS.
WIND ENERGY CONVERSION SYSTEM
A machine that converts the kinetic energy in the wind into a usable
form (commonly known as a "wind turbine" or "windmill.") The WECS includes
all parts of the system except the tower and the transmission equipment; the
turbine or WECS may be on a horizontal or vertical axis, rotor or propeller.
Wind energy conversion systems shall be permitted in only A-2 Agricultural
zoning districts, subject to the following requirements:
A. Building permit application for a WECS. Building permit
applications for a wind energy conversion system shall be accompanied by a
plot plan drawn in sufficient detail to clearly describe the following.
(1) Property lines and physical dimensions of the site.
(2) Location, approximate dimensions and types of major existing
structures and uses on site.
(3) Location and elevation of the proposed WECS.
(4) Location of all aboveground utility lines on site or
within one radius of the total height of the WECS.
(5) Location and size of structures and trees above 35 feet
within a five-hundred-foot radius of the proposed WECS. For purposes of this
requirement, electrical transmission and distribution lines, antennas and
slender or open lattice towers are not considered structures.
(6) Show the zoning designation of immediate and adjacent sites as set forth in Chapter
310, Zoning.
(7) Include make, model, picture and manufacturer's
specifications, including noise decibels.
B. General provisions. Installation of all wind energy conversion
systems shall comply with the following requirements:
(1) WECS size. This chapter covers those WECS whose swept
area is 1,000 square feet or less. (For conventional propeller WECS, this
would be approximately 35 feet or less in diameter.)
(2) Water pumpers. Non-electrical WECS used for pumping water may be exempted from the provisions of Subsection
B(3) through
(15), but they must be sited so as any tip-over will be harmless to others.
(3) Compliance with Uniform Building Code.
(a) Building permit applications shall be accompanied by
standard drawings of the structural components of the wind energy conversion
system, including support structures, tower, base and footings. Drawings and
any necessary calculations shall be certified, in writing, by a Wisconsin
State registered professional engineer that the system complies with the Wisconsin
State Fire Prevention and Building Code. This certification would normally
be supplied by the manufacturer.
(b) Where the structural components or installation vary
from the standard design or specification, the proposed modifications shall
be certified by a Wisconsin State registered professional engineer for compliance
with the seismic and structural design provisions of the Wisconsin State Fire
Prevention and Building Code.
(4) Compliance with National Electrical Code.
(a) Building permit applications shall be accompanied by
a line drawing identifying the electrical components of the wind system to
be installed in sufficient detail to allow for a determination that the manner
of installation conforms to the National Electrical Code. The application
shall include a statement from a Wisconsin State registered professional engineer
indicating that the electrical system conforms to good engineering practices
and complies with the National Electrical Code. This certification would normally
be supplied by the manufacturer. All equipment and materials shall be used
or installed in accordance with such drawings and diagrams.
(b) Where the electrical components of an installation vary
from the standard design or specifications, the proposed modifications shall
be reviewed and certified by a Wisconsin State registered professional engineer
for compliance with the requirements of the National Electrical Code and good
engineering practices.
(5) Rotor safety. Each wind energy conversion system must
be equipped with both manual and automatic controls to limit the rotational
speed of the blade below the design limits of the rotor. The application must
include a statement by a Wisconsin State registered professional engineer
certifying that the rotor and overspeed controls have been designed and fabricated
for the proposed use in accordance with good engineering practices. The engineer
should also certify the structural compatibility of possible towers with available
rotors. This certification would normally be supplied by the manufacturer
and include the distance and trajectory of the thrown blade from an exploding
turbine or propeller according to the loss of blade theory.
(6) Guy wires. Anchor points for guy wires for the WECS tower
shall be located within property lines and not on or across any aboveground
electric transmission or distribution line. The point of ground attachment
for the guy wires shall be enclosed by a fence six feet high.
(7) Tower access. Towers should have either:
(a) Tower-climbing apparatus located no closer than 12 feet
from the ground;
(b) A locked anti-climb device installed on the tower; or
(c) The tower shall be completely enclosed by a locked, protective
fence at least six feet high.
(8) Noise. The WECS shall meet the requirements of any existing
noise ordinance of the Town of Winneconne.
(9) Electromagnetic interference. No WECS shall be installed
in any location along the major axis of an existing microwave communications
link where the operation of the WECS is likely to produce an unacceptable
level of electromagnetic interference, unless the applicant provides sufficient
evidence satisfactory to the Zoning Administrator indicating the degree of
expected interference and the possible side effect on the microwave communication
link. If has been demonstrated to the Town Zoning Administrator that a wind
energy conversion system is causing harmful interference, the operator shall
promptly mitigate the harmful interference.
(10) Signs. At least one sign shall be posted at the base
of the tower warning of electrical shock or high voltage.
(11) Height. The minimum height of the lowest part of the
WECS shall be 30 feet above the highest existing major structure or tree within
a two-hundred-fifty-foot radius. For purposes of this requirement, electrical
transmission and distribution lines, antennas and slender or open-lattice
towers are not considered structures. WECS shall be located or installed in
compliance with the guidelines of the Federal Aviation Regulations with regard
to airport approach zones.
(12) The minimum lot size required for the erection, construction
or placement of a WECS on a property shall be five acres.
(13) Setbacks.
(a) Except as provided for under §
300-4B(6), the WECS shall be set back from any property line, aboveground utility line or other WECS a distance greater than either its overall height, including blades, or the minimum yard requirement, whichever is greater.
(b) In the case of cluster development, a WECS shall be erected within the common open space area and shall be set back from all residences a distance greater than Subsection
B(13)(a) above.
(c) Contiguous property owners may construct a WECS for use
in common, provided that the required setback is maintained relative to the
property lines of nonparticipant owners.
(14) Utility notification (for those WECS which will be interconnected
to a utility grid). No wind turbine shall be installed until evidence has
been given that the utility company has been notified, in writing.
(15) Abatement. If a wind energy conversion system or systems
are not maintained in operational condition for a period of one year or poses
a potential safety hazard, the owner or operator shall take expeditious action
to remedy the situation. The Town of Winneconne reserves the authority to
abate any hazardous situation and to pass the cost of such abatement on to
the owner or operator of the system. If the Town of Winneconne determines
that the WECS has been abandoned and poses a safety hazard, the system shall
be removed within 45 days of written notice to the owner or operator of the
system.
(16) Liability insurance. The applicant, owner, lessee or
assignee shall maintain a current insurance policy which will cover installation
and operation of the wind energy conversion system at all times. Said policy
shall provide a minimum of $300,000 of property and personal liability coverage.
(17) Lighting of tower. Lighting of the tower for aircraft
and helicopter will conform to FAA standards for wattage and color.
(18) Environmental impact. The project must be viewed for
visual pollution and the Town may require an environmental impact statement.
Any person who violates any provision of this chapter shall be guilty
of a violation and subject to a fine of not more than $250, imprisonment not
to exceed 15 days, or both such fine and imprisonment.