A. Purpose. See 215-27.1(A) for details.
B. Small wind energy systems and solar energy systems permitted.
(1) Small wind energy systems and solar energy systems are permitted accessory structures and uses within all zoning districts of the City of Northfield in connection with any principal use lawfully existing within such district. Any question of whether a particular use is permitted as an accessory use by the provisions of this section shall be determined by the Zoning Officer.
(2) No small wind energy system or solar energy systems shall be established or constructed unless a zoning permit evidencing the compliance of such use or structure with the provisions of this section shall have first been issued. However, if any structure or use requires site plan approval, no such system may be established or constructed without the required site plan approval and a zoning permit.
(3) In addition to all the use limitations applicable in the district in which a small wind energy system or solar system is located, no such system shall be permitted unless it complies with the following restrictions:
(a) No sign, except as expressly authorized by this section or by §
215-113 shall be maintained in connection with an accessory use; and
(b) No small wind energy system or solar energy system shall be constructed or established on any lot prior to the time of the substantial completion of the principal structure to which it is accessory. Agricultural uses are exempt from this provision.
(4) Wind and solar energy systems shall only be permitted as an accessory use on the same lot as the principal use. All energy systems require approval from the Zoning Officer and Construction Office prior to installation. Applications for an energy system shall include information demonstrating compliance with the provisions of this subsection. In the event that the Zoning Officer or Construction Office does not believe the provisions of this subsection will be satisfied, an applicant may request a variance from the City of Northfield Planning Board.
C. Development requirements for small wind energy systems and solar energy systems.
(1) Small wind energy systems.
(a) Wind propellers and vertical style turbines are permitted in all residential and agricultural and preservation districts subject to the following requirements:
[1] Minimum setbacks. All wind turbines shall be set back from all property lines a distance equal to 100% of the height of the structure including the blades.
[2] Wind turbines shall not be permitted in a front yard setback or in front of any house.
[3] Maximum height. Freestanding wind turbines shall not exceed a height of 80 feet, except that on lots of more than five acres, a maximum height of 200 feet is permitted. The maximum height shall include the height of the blades at its highest point.
[4] Wind turbines shall be permitted as a rooftop installation.
[5] Individualized wind turbines on residential properties shall have a name plate capacity of 10 kilowatts or less.
(b) Wind turbines shall be permitted in a nonresidential zoning district subject to the bulk requirements for that district and the following:
[1] Minimum setbacks. All wind turbines shall be set back from all property lines a distance equal to 100% of the height of the structure including the blades.
[2] Wind turbines shall not be permitted in a front yard.
[3] Maximum height. The maximum height for a wind turbine shall not exceed 200 feet, including the height of the blades at its highest point.
[4] Wind turbines shall be permitted as a rooftop installation.
[5] As a conditional use, wind turbines shall be permitted in a parking lot in front of a building if all tower setbacks can be satisfied by the area of the parking lot.
(c) Noise. All wind energy systems shall comply with the following:
[1] Between a residential use or zone, sound levels of the wind energy system shall not exceed 55 dBA at a common property line or 50 dBA to the closest occupied structure.
[2] In all other cases at a common property line, sound levels of the wind energy system shall not exceed 65 dBA.
[3] These levels may be exceeded during short-term events such as utility outages and/or severe windstorms.
(d) Wind turbines shall be designed with an automatic brake or other similar device to prevent over speeding and excessive pressure on the tower structure.
(e) Wind energy systems shall not be artificially lighted, except to the extent required by the FAA or other applicable authority.
(f) All ground-mounted electrical and control equipment shall be labeled and secured to prevent unauthorized access.
(g) The tower shall be designed and installed so as not to provide step bolts, a ladder, or other publicly accessible means of climbing the tower for a minimum height of eight feet above the ground.
(h) All moving parts of the wind energy system shall be a minimum of 10 feet above ground level.
(i) The blades on the wind energy system shall be constructed of a corrosion-resistant material.
(j) All guy wires or any part of the wind energy system shall be located on the same lot as the energy system.
(2) Solar energy systems.
(a) Solar panels shall be permitted as a rooftop installation in any zoning district. They should be mounted as close as possible to the existing structure.
[1] For residential structures, panels shall not extend above the ridge of the roof on which they are attached.
[2] For commercial structures, the panels shall not extend above the ridge for sloped roofs and shall not protrude higher than 48 inches above a flat roof. All panels on flat roofs shall be screened from public view, unless it can be shown that the screening affects the performance of the panels. In no event shall the placement of the solar panels result in a height, including building and panels, greater than what is permitted in the zoning district in which they are located for the principal building.
(b) Solar panels shall be permitted as ground arrays in accordance with the following:
[1] All ground arrays shall be set back a distance of at least 50 feet from a front property line, at least 20 feet from a side property line and at least 20 feet from a rear property line in a residential zoning district, or in conformance with the bulk standards for accessory structures in commercial districts as provided herein.
[2] Ground arrays shall not be permitted in a front yard setback or in front of a house.
[3] Ground arrays shall be located so that any glare is directed away from an adjoining property that contains either a residential or nonresidential structure. If the ground arrays cannot be situated in such a way to avoid any glare on an adjoining property, which contains either a residential or nonresidential structure, then the applicant shall be required to install screening along the property lines to the satisfaction of the Zoning Officer.
[4] Ground arrays shall not exceed a height of 15 feet.
[5] Ground arrays shall be structures not included in the calculation of lot coverage.
[6] A solar ground array in the style of a protective parking carport or decorative entrance canopy shall be conditionally permitted in the front of commercial buildings in RC and OP-B zones above existing paved parking areas. The installations that are retained to the footprint of the paved area will not add to the lot coverage calculations as long as the structure drains into the existing parking stormwater system. The design of the structure should be complimentary to the style of the existing building.
(3) Wind and solar energy systems shall not be used for displaying any advertisement except for reasonable identification of the manufacturer or operator of the system. In no case shall any identification be visible from a property line or a public right-of-way.
(4) The design of wind or solar energy systems shall, to the extent reasonably possible, use materials, colors, textures, screening and landscaping that will blend the facility into the natural setting and existing environment.
(5) All applications for a wind or solar energy system shall conform to all of the applicable regulations with respect to tree removal. An applicant shall locate a wind or solar energy system so that tree removal is minimized to the extent practical, to maintain a twenty-degree horizon from the base of the array to the tree line.
(6) The installation of a wind or solar energy system shall conform to the National Electric Code as adopted by the New Jersey Department of Community Affairs.
(7) The installation of a grid interconnected wind or solar energy system is subject to all local and public utility requirements or any other entity supplying power to the area of interconnection.
(8) The provisions of Article
XI, Zoning District Regulations, of this chapter, shall not apply to wind and solar energy systems with regards to height. Wind and solar energy systems shall conform to the height restrictions provided in this subsection.