(A) Purpose. The purpose of this code is to establish regulations for the location, installation, and operation of wind energy systems. Among other goals, the regulations in this section are intended: to promote the safe, effective, and efficient use of wind energy systems to produce electricity; to preserve and protect public health, safety, welfare and quality of life by minimizing the potential adverse impacts of wind energy systems; to establish standards and quantifiable procedures to direct the site location, engineering, installation, maintenance, and decommissioning of wind energy systems; and to define and delineate between various types of wind energy systems in order to properly regulate the different wind energy systems technologies.
(B) Applicability. This section applies to all wind energy systems proposed to be constructed after the effective date of this amendatory ordinance. Wind energy systems constructed before the effective date of this amendatory ordinance will not be required to meet the requirements of this section. But any physical modification to an existing wind energy system that materially alters the size, type, and number of wind turbines and other equipment will be required to meet the requirements of this section.
(C) Small wind energy systems.
(1) Installations allowed as a permitted use. Subject to the requirements of this section, small wind energy systems are allowed as a permitted accessory use in the all zoning districts.
(a) Nothing in this section will be deemed to relieve any obligation for obtaining site plan review as required under the Development Ordinance.
(2) Capacity restrictions.
(a) A small tower-mounted wind energy system may not have a nameplate capacity that exceeds 30 kilowatts.
(b) A small roof-mounted wind energy system may not have a nameplate capacity that exceeds ten kilowatts.
(3) Building permit required; site plan.
(a) No person may construct, install, modify, or relocate a small wind energy system without first obtaining a building permit.
(b) In addition to any other requirement under this section, any person constructing a small wind energy system with a turbine located within 500 feet of the property line of a residential district must first obtain site plan approval in accordance with the procedures set forth in §§ 152.130 through 152.138.
(4) Upwind turbines required. Upwind turbines are required unless otherwise approved by the Inspections Division, based on technical specifications and site-specific information.
(5) Visual appearance. All of the following minimum requirements apply:
(a) Each small wind energy system, including accessory buildings and related structures, must be a non-reflective, non- obtrusive color, such as white, gray, or black.
(b) The appearance of the small wind energy system and all accessory structures must be maintained throughout the life of the unit.
(c) Exterior lighting of a tower, rotor blades, and nacelle of a small wind energy system will be allowed only if required to meet Federal Aviation Administration mandatory requirements.
(d) A small wind energy system may not contain commercial signage, banners, flags, or advertising logos, except for the identification of the turbine manufacturer and unit specifications for regulatory purposes.
(6) Ground clearance. The lowest extension of any rotor blade or other exposed moving component of a small wind energy system must be at least 15 feet above the ground, as measured from the highest point of grade within 30 feet of the base of the wind energy system. In addition, the lowest extension of any rotor blade or other exposed moving component of a small wind energy system must be at least 15 feet above any outdoor areas intended for human use that are located below the wind energy system, including balconies, roof gardens, and similar structures.
(a) If an adjacent parcel contains a residential use, then the noise produced by a small wind energy system may not exceed the lowest ambient sound level that exists between the hours of 9:00 p.m. and 9:00 a.m. along any adjacent property line used for residential purposes.
(b) If no adjacent parcel contains a residential use, then the noise produced by a small wind energy system may not exceed the lowest ambient sound level that exists between the hours of 9:00 p.m. and 9:00 a.m. on the parcel, plus five decibels dB(A).
(8) Vibration. A small wind energy system may not produce vibrations that are perceptible to humans beyond any property line upon which the wind energy system is located.
(9) Signal interference. A small wind energy system must not create an interference issue with communication systems, such as (but not limited to) radio, telephone, television, satellite, or emergency services communication systems, unless the issue is able to be resolved with the consent of the impacted property owner.
(10) Wire supports. Guy wires or similar apparatus are prohibited as part of a small wind energy system installation.
(11) Height requirements.
(a) A small roof-mounted wind energy system may not exceed the lesser of: (i) ten feet above the highest point of the adjacent roof or structure; and (ii) ten feet above the maximum permitted height of the zoning district.
(b) A small tower-mounted wind energy system may not exceed 120 feet in a manufacturing district or 60 feet in any other zoning district permitted under division (C)(1) of this section. The distance is measured from the grade at the base of the tower to the highest edge of the system.
(12) Setbacks, location, and separation requirements.
(a) A small roof-mounted wind energy system must be affixed to the roof deck of a flat roof or to the ridge or slope of a fixed roof, and it may not be affixed to the parapet or chimney of any structure.
(b) For a small roof-mounted wind energy system, no more than one turbine is allowed for every 750 square feet of the combined roof area of all structures on the parcel. For a pitched roof, each surface of the roof will be included in the roof-area calculation. A distance equal to the mounted height of the adjacent wind energy system must be maintained between the bases of each small roof-mounted wind energy system.
(c) A small roof-mounted wind energy system must be set back a minimum of 15 feet from any property line, public right-of-way, public easement, or overhead utility line.
(d) A small tower-mounted wind energy system may not be located in any public right-of-way or public easement and must be set back a distance equal to at least 1.1 times the system height from the base to all property lines, public rights-of-way, public easements, or overhead utility lines.
(e) A small tower-mounted wind energy system must be set back a minimum of 20 feet from all occupied buildings on the subject property, measured from the base of the tower.
(f) If more than one small tower-mounted wind energy system is installed on a property, then a distance equal to the height of the tallest wind energy system must be maintained between the bases of each wind energy system.
(13) Safety requirements.
(a) If the small wind energy system is connected to a public utility system, then it must meet the requirements for interconnection and operation as set forth in the public utility's current service regulations that meet federal, state and industry standards applicable to wind power generation facilities. Any such connection must be inspected and approved by the appropriate utility company.
(b) The small wind energy system must be equipped with an automatic braking, governing, or feathering system in order to prevent uncontrolled rotation, over-speeding, or excessive pressure on the wind-energy facility clearly visible warning sign regarding voltage must be placed at the base of the wind energy system.
(c) The structural integrity of the small wind energy system must conform to the design standards of the International Electrical Commission (IEC); specifically, IEC 61400-1"Wind Turbine Safety and Design," IEC 61400-2 "Small Wind Turbine Safety," IEC61400-22 "Wind Turbine Certification," and IEC 61400-23 "Blade Structural Testing," as amended or succeeded.
(14) Building permit application. An application for a building permit under division (C) of this section must be accompanied by at least all of the following:
(a) A scaled site plan drawing, clearly illustrating the proposed wind energy system and all accessory structures and equipment in relation to all onsite and adjacent buildings, property lines, rights-of-way, public easements, and overhead utility lines. Setbacks as required in this section must be shown to scale on the site plan.
(b) A scaled site plan that clearly displays property dimensions, existing buildings on the subject property and on adjacent properties, sidewalks, non-motorized pathways, and streets.
(c) A scaled site plan that includes existing and proposed on-site grading/topography at two-foot contour intervals.
(d) Product-specific technical information from the wind energy system manufacturer, including the proposed total height and type of wind energy system, maximum noise output in decibels, total rated generating capacity, product dimensions, rotor-blade diameter, and a detail of accessory structures.
(e) Documented compliance with applicable local, state, and federal regulations, including public safety, construction, environmental, electrical, communications, and Federal Aviation Administration requirements.
(f) Documented evidence that the utility company has been informed of and approved the installation of the interconnected, customer-owned generator. Off-grid systems are exempt from this requirement.
(g) A narrative explaining the proposed methods that will be used to perform maintenance on the wind energy system in compliance with the manufacturer's recommendations and requirements.
(g) A narrative that explains how the wind energy system will be tested after installation for compliance with the noise and vibration requirements of division (C) of this section.
(a) If a wind turbine is out of service or not producing electrical energy for a period of 12 months, then it will be deemed to be non-operational.
(b) The system owner shall complete the decommissioning of a small wind energy system within three months of it becoming non-operational. The Director of the Community Development Department may grant an extension for the decommissioning. Any extension may not exceed six months.
(c) A wind energy system for which the decommissioning as required under this section has not been completed is hereby declared to be a public nuisance. The City of Galesburg may abate the nuisance in any manner as provided by law.
(D) Large wind energy systems.
(1) Special use. A large wind energy system may be permitted as a special use in the following zoning districts:
(a) AG - Agriculture District;
(c) M-I - Light Industrial District;
(d) M-2 - Heavy Industrial District; and
(e) CPD - Comprehensive Planned Development District.
(2) An application for a special use permit for a large wind energy system must be accompanied by all of the following:
(a) All characteristics required by § 152.018.
(b) A narrative describing the proposed wind energy system, including an overview of the project; the project location; the approximate generating capacity of the wind energy system; the approximate number of representative types and height or range of heights of wind turbines to be constructed, including their generating capacity, dimensions, and respective manufactures; and a description of ancillary facilities.
(c) An affidavit or similar evidence of agreement between the property owner and the facility owner or operator demonstrating that the facility owner or operator has the permission of the property owner to apply for necessary permits for construction and operation of the wind energy system.
(d) A site plan showing the planned location of each wind turbine, property lines, setback lines, access road and turnout locations, substations, ancillary equipment, buildings, and structures, including permanent meteorological towers, associated transmission lines, and the layout of all structures within the geographical boundaries of any applicable setback.
(3) Design and installation.
(a) Design safety certification. The design of the large wind energy system must conform to applicable industry standards, including those of the American National Standards Institute. The applicant must submit certificates of design compliance obtained by the equipment manufacturers from Underwriters Laboratories, Det Norske Veritas, Germanischer Lloyd Wind Energies, or other similar certifying organizations.
(b) Regulatory compliance. Each large wind energy system must comply with all federal, state, and local laws, rules, and regulations, including all building codes, electrical codes, health and safety rules and regulations, environmental rules and regulations, and aviation rules and regulations.
(c) Quantity of wind turbines. No more than one wind turbine may be installed for every 75 acres of land included in the subject parcel. The number of wind turbines authorized on the subject parcel will be determined based on the setbacks and separation distance as required in this section.
(d) Controls and brakes. All wind energy systems must be equipped with a redundant braking system. This requirement includes both aerodynamic overspeed controls (including variable pitch, tip, and other similar systems) and mechanical brakes. Mechanical brakes must be operated in a fail-safe mode. Stall regulation will not be considered to be a sufficient braking system for overspeed protection.
(e) Electrical components. All electrical components of the large wind energy system must conform to relevant and applicable local, state, and national codes.
(f) Wire supports. Guy wires or similar apparatus are not allowed as part of a large wind energy system installation.
(g) Visual appearance. Wind turbines must be a non-obtrusive color, such as white, off-white, or gray. Large wind energy systems may not be artificially lighted, except to the extent required by the Federal Aviation Administration or other applicable authority regulating air safety. Wind turbines may not display advertising, except for reasonable identification of the turbine manufacturer, system owner, and operator. This identification may not exceed two square feet in total and may not be visible on the blades or tower. On-site transmission and power lines must, to the extent practical, be placed underground.
(h) Warnings. A clearly visible warning sign concerning voltage must be placed at the base of all pad-mounted transformers and substations.
(i) Crime prevention locks. Wind turbines may not be climbable up to 15 feet above ground surface. All access doors to wind turbines and electrical equipment must be locked or fenced, as appropriate, to prevent entry by nonauthorized individuals.
(a) Occupied buildings. Wind turbines must be set back from the nearest occupied building a distance of not less than the normal setback requirements for that zoning classification or 1.5 times the turbine height, whichever is greater. Wind turbines must be set back from the nearest occupied building located on a nonparticipating property a distance of no less than five times the hub height. The setback distance will be measured from the center of the wind turbine base to the nearest point on the foundation of the occupied building.
(b) Property lines. All wind turbines must be set back from the nearest property line a distance of not less than the normal set back requirements for that zoning classification or 1.1 times the turbine height, whichever is greater.
(c) Public roads. All wind turbines must be set back from the nearest public road a distance of not less than 1.1 times the turbine height. The setback distance will be measured from the center of the wind turbine base to the right-of-way line.
(d) Tower separation. Wind turbine separation must comply with industry standards and manufacturer's recommendations.
1. A variance of setbacks may be requested by submitting an application following the filing procedures for a variance request as outlined in § 152.019, but in no event may the wind turbine be located closer to an occupied building than 1.1 times the turbine height.
(a) Prior to initiating construction or transporting materials to a proposed site, a road assessment shall be performed documenting existing road conditions, establishing structure and pavement weight limits, and verifying roadway and intersection geometry for all movements of equipment and materials. The road assessment shall be performed by an Illinois Licensed Professional Engineer meeting the approval of the city. The final road assessment shall be reviewed and approved by the city prior to construction. All roads utilized to transport equipment and materials shall be subject to approval by the city and no load which exceeds the weight or size limits established by the approved road assessment shall be allowed. The system owner shall be responsible for the costs of the road assessment, any pavement, structure or geometric upgrades required by the road assessment prior to construction, and all damages to publicly owned roads caused by the transport of equipment and materials to a proposed site regardless of the weight limits or parameters established by the road assessment. The city shall make the final determination of any required road repairs and shall approve all repair work for final acceptance. All road work shall be subject to city approval, including but not limited to the construction limits, repair methods, and contractors.
(b) Each large wind energy system must be accessible from an access road in order to offer an adequate means by which public safety vehicles may readily access the site in the event of an emergency. All access roads must be constructed to standards approved by the City Engineer, Police Chief and Fire Chief.
(6) Noise, vibration, and shadow flicker.
(a) Audible sound from a large wind energy system must comply with Illinois Pollution Control Board regulations.
(b) A large wind energy system may not produce vibrations that are perceptible to humans beyond any property line upon which the wind energy system is located.
(c) The system owner shall conduct an analysis of potential shadow flicker onto any occupied building of a nonparticipating property with direct line-of-sight to the wind turbine. The analysis must identify the locations of shadow flicker that may be caused by the wind turbine and the expected durations of the shadow flicker at these locations from sunrise to sunset over the course of a year. The analysis must identify situations where shadow flicker may affect the occupants of the buildings for more than 30 hours per year and describe measures that will be taken to eliminate or mitigate the problems. Shadow flicker on an occupied building a nonparticipating property may not exceed 30 hours per year.
(7) Signal interference. A large wind energy system must not create an interference issue with communication systems, such as (but not limited to) radio, telephone, television, satellite, or emergency services communication systems, unless the issue is able to be resolved with the consent of the impacted property owner.
(a) If a wind turbine is out of service or not producing electrical energy for a period of 12 months, then it will be deemed to be nonoperational. A nonoperational wind turbine is hereby declared to be a public nuisance.
(b) A permit application for a large wind energy system must include a decommissioning plan for the decommissioning of nonoperational anticipated service life of the wind turbine or in the event the wind turbine is abandoned or has reached its life expectancy. If the system is out of service or not producing electrical energy for a period of 12 months, then it will be deemed to be nonoperational, and the decommissioning and removal of that system will commence according to the decommissioning plan as provided and approved. A cost estimate for the decommissioning of the system must be prepared by a professional engineer or contractor who has expertise in the removal of the wind turbine. The decommissioning cost estimate must explicitly detail the cost before considering any projected salvage value of the out of service wind turbine. A restoration plan must also be provided for the site with the application. The decommissioning plan must include the following within six months after the wind turbine becomes non-operational:
1. The removal and disposal of the wind turbine and all accessory structures, electrical components, and all foundations to a minimum depth of 60 inches.
2. All access drives to the wind turbine must be removed, cleared, and graded by the system owner, unless the landowner requests in writing a desire to maintain the access drives. All such maintained access drives will remain private, and the city will have no duty to undertake any maintenance or repair of those drives.
3. The wind turbine site and any disturbed earth must be stabilized, graded, and cleared of any debris. If the site is not to be used for agricultural purposes, then the site must be seeded to prevent soil erosion.
4. Hazardous material must be removed from the site and dispose in accordance with federal and state law.
(c) Prior to any installation, the owner shall provide to the city a surety instrument in the amount of the cost estimate set forth under division (D)(a), (b) of this section. The surety instrument must be in the form of a surety bond or letter of credit and be in a form and manner acceptable to the director. The surety instrument must provide the security to the city if the owner fails to decommission the wind turbine in accordance with the decommissioning plan.
(d) If the owner fails to decommission the wind turbine as required under the decommissioning plan, then, upon reasonable notice, the city or its agents may enter the property to complete the decommissioning. The owner will be responsible for all costs incurred by the city to complete the decommissioning.
(e) The City Engineer may grant an extension of the decommission period based upon a reasonable and explanatory request by the owner. Any such extension period may not exceed one calendar year.
(a) The owner shall, at all times the system is located at the site, maintain a general liability policy covering bodily injury and property damage with limits of at least one million dollars per occurrence and five million dollars in the aggregate.
(b) All policies, except policies for professional liability, must be written on an occurrence basis. All policies must be written with insurance carriers who are qualified to do business in the State of Illinois and who are rated A-VII or better in the latest Best's Key Rating Guide. All policies must be written on the most current Insurance Service Office (ISO) or National Council on Compensation Insurance (NCCI) form or a manuscript form if coverage is broader than the ISO or NCCI form.
(c) The policy must give the city at least 30 days' notice prior to any change, cancellation, or non-renewal except in the case of cancellation for nonpayment of premium, in which case the notice must be made ten days before the cancellation. Any renewal certificate of insurance must be automatically provided to the city at least 30 days prior to the policy expiration. If a self-insured retention or a deductible is maintained on any of the policies, then the amount of the retention or deductible is subject to approval by the city; the city may not unreasonably withhold the approval.
(d) Prior to any work at the site, the owner shall provide the city with certificates of insurance showing evidence that the insurance policies required under division (D)(9) of this section are in full force and effect.
(10) Certification and compliance.
(a) The owner shall notify the city of a change in ownership of the wind energy system or a change in ownership of the property on which the wind energy system is located within 60 days after the transfer.
(b) The city reserves the right to inspect any wind energy system, in order to ensure compliance with this section.
(c) A sound pressure level analysis must be conducted from a reasonable number of sampled locations at the perimeter and in the interior of the property containing any wind turbines to demonstrate compliance with the requirements of this section. Proof of compliance with the noise standards is required within 90 days after the date the wind turbine becomes operational. Sound must be measured by a third-party, qualified professional, with the associated fees being paid by the owner.
(1) Noise. If any aggrieved person alleges that a wind turbine is not in compliance with the noise requirements of division (C)(7) or division (D)(7) of this section, then the administrative procedure will be as follows:
(a) The complainant must notify the Director of the Community Development Department in writing of the alleged noise violation.
(b) The Director of the Community Development Department shall coordinate with the Police Department to test the decibel level for compliance with the standards of this section.
(c) If the test under division (E)(1)(b) of this section indicates that the noise levels are in compliance with this section, and the complainant is dissatisfied with the results of that test, then the complainant may request a noise-level test by a certified acoustic technician. The complainant must submit a cash deposit with the city in an amount sufficient to pay for the noise level test. If the noise-level test indicates that the noise level complies with the standards of this section, then the city will use the deposit to pay for the test. If the noise-level test indicates that the noise levels are not in compliance with the standards of this division, then the city will reimburse the deposit to the complainant, and the owner shall reimburse the city for the cost of the test.
(d) If a test under division (E)(1)(b) or division (E)(1)(c) of this section indicates that the noise levels are not in compliance with this section, then the owner shall take immediate action to bring the wind turbine into compliance. The city may require that the wind turbine be shut down until compliance can be achieved.
(2) Shadow flicker. If any aggrieved person alleges that a wind turbine is not in compliance with the shadow flicker requirements of division (D)(7) of this section, then the administrative procedure will be as follows:
(a) The complainant must notify the Director of the Community Development Department in writing of the alleged shadow flicker violation.
(b) The Director of the Community Development Department or their designee shall examine the shadow flicker complaint on the site.
(c) If the examination under division (E)(2)(b) of this section indicates that the shadow flicker levels are in compliance with this section, and the complainant may request a shadow flicker level test by a certified technician. The complainant must submit a cash deposit with the city in an amount sufficient to pay for the test. If the test indicates that the shadow flicker level complies with the standards of this section, then the city will use the deposit to pay for the test. If the test indicates that the shadow flicker levels are not in compliance with the standards of this section, then the city will reimburse the deposit to the complainant, and the owner shall reimburse the city for the cost of the test.
(d) If the examination under division (E)(2)(b) or the test under division (E)(2)(c) indicates that the shadow flicker levels are not in compliance with this section, then the owner shall take immediate action to bring the wind turbine into compliance. The city may require that the wind turbine be shut down until compliance can be achieved.
(F) Exemptions. The provisions of this section shall not be applicable to any premises or lands containing a wind energy system maintained by the United States of America, this state, or any unit of local government, primary school, secondary school, or college.
(Ord. 10-3277, § 1-7.8, passed 1-4-2010; Ord. 12-3343, passed 1-23-2012; Ord. 25-3758, passed 7-21-2025)