§ 152.79 PROHIBITED CHARACTERISTICS OF ALTERNATIVE ENERGY SYSTEMS.
   (A)   No alternative energy system shall be constructed within 20 feet laterally of any overhead power line (excluding secondary electrical service lines or service drops). Setbacks from underground distribution lines shall be at least 10 feet.
   (B)   An alternative energy system utilizing a rotary blade shall not have an arc diameter greater than 33 feet.
   (C)   An alternative energy system shall not cause radio and television interference.
   (D)   For wind speeds in the range of 0-25 mph, wind turbines shall not cause a sound pressure level in excess of 60 dB(A), or in excess of 5 dB(A) above the background noise, whichever is greater, as measured at the closest neighboring inhabited dwelling. This level, however, may be exceeded during short-term severe windstorm events.
   (E)   No alternative energy system shall violate MPCA noise standards, air quality standards, or otherwise result in a nuisance source of noise.
   (F)   No alternative energy system shall resemble, imitate or approximate the shape, size, form or color of railroad or traffic signs, signals or devices.
   (G)   No alternative energy system shall be located as to interfere with the visibility or effectiveness of any official traffic sign or signal, or with driver vision at any access point or intersection.
   (H)   No alternative energy system shall display any advertisement, nor shall it be used for any purpose other than for alternative energy.
   (I)   No alternative energy system shall be erected which contains, includes or is illuminated by any flashing light or lights, except as required by law.
   (J)   No alternative energy system shall be erected or maintained which is not effectively shielded so as to prevent beams or rays of light from being directed at any portion of the traveled way of any highway or street of such intensity or brilliance so as to cause glare or impair the vision of the operator of any motor vehicle. Further, all systems shall be constructed as to prevent beams or rays of light from being directed at any portion of a building or residence.
(Ord. 547, passed 9-27-2011) Penalty, see § 10.99