Energy-producing windmills could become more common within Hesperia city limits following an ordinance revision that relaxes height and setback regulations.


The ordinance amendment allows rooftop windmills to be mounted as high as 59 feet. Pole-mounted windmills can be one times the height distance for lots of 15,000 to 90,000 square feet. Lots larger than 90,000 square feet will be allowed to have poles 80 feet high, and lots larger than five acres can have windmills mounted on poles up to 120 feet high.


All three Hesperia Planning Commissioners present William Muller, Paul Russ and Bill Jensen voted in favor of the resolution amending the ordinance during its regular meeting on Thursday. The City Council originally adopted the ordinance in February of 2010.


Commissioners also discussed noise issues regarding windmills, which at an estimated 55 dBA are less noisy than an air conditioning unit, conversational speech, a heavy truck or a hair dryer, a commission packet attachment stated.


The interest in residential rooftop windmills has been fueled by rebate and incentive programs. Homeowners who purchase roof-mounted windmills could see longterm electricity bill savings, according to Hesperia wind turbine proponent George Stanford.


Alternative energy technology contractors and consumers expressed interest in installing residential windmills during the Planning Commission's Alternative Energy Technology Workshop in April.