Group Leaders

Ian Bonsma BASc, INCE, PEng Associate, Senior Acoustical Engineer

Ian’s primary focus for more than a decade has been the renewable energy sector, assisting wind and solar operators, developers, governing agencies, and manufacturers, with noise assessments, acoustic audits, warranty sound power measurements and noise complaint investigations. His projects span the Americas, including the Lake Winds Energy Park in West Michigan, the McLean’s Mountain Wind Farm Project in Ontario, and the Cerro de Hula Wind Farm in Honduras. Ian is the technical lead for HGC Engineering’s ISO 17025 Accreditation for IEC 61400-11 (sound power testing of wind turbines). He has conducted research into measurement methods for low-frequency noise and infrasound from wind turbines, and the effect of meteorological effects on amplitude modulation of wind turbine noise. Ian is active in the wind turbine noise community providing input to regulatory agencies on their policies for wind turbine noise.

Ian also has a broad experience in noise and structural vibration from transportation infrastructure projects – road widenings and improvements – and industrial facilities throughout North America. Ian has also addressed the impact of building vibration on sensitive equipment for medical and industrial applications.

Professional Engineers Ontario (PEO)

American Wind Energy Association (AWEA)

Institute of Noise Control Engineering (INCE)

Air & Waste Management Association (AWMA)

Canadian Society for Civil Engineering (CSCE)

Canadian Acoustical Association (CAA)

Canadian Wind Energy Association (CanWEA)

Association of Professional Engineers and Geoscientists of Alberta (APEGA)

“An Investigation into Short-Term Fluctuations in Amplitude Modulation of Wind Turbine Noise. Preliminary Results.” Wind Turbine Noise Conference, Rotterdam, Netherlands, May 2017.

“Characteristics of Wind Turbine Sound That Heightens Annoyance”, American Wind Energy Association, Anaheim, May 2017

“An Investigation into Short-Term Fluctuations in Amplitude Modulation of Wind Turbine Noise. Preliminary Results.” Wind Turbine Noise Conference, Rotterdam, Netherlands, May 2017.

“Optimization of Wind Projects” Canadian Wind Energy Association, Operations and Maintenance, March 2017.

“Noise 101”, co-led course at the Air & Waste Management Association conference in Kitchener, October, 2016.

“Noise 101 and Norsonic N-140 Training”, Ontario Ministry of the Environment and Climate Change, June 2016.

“Lessons from Acoustic Audits of Wind Power Projects”, American Wind Energy Association, New Orleans, May 2016

“Post Construction Sound Survey Lake Winds Energy Park” Nova Scotia, 2011.

“Lessons from Acoustic Audits of Wind Power Projects”, Canadian Wind Energy Association, October, 2014

“Assessing Sound Power from Wind Turbines and Compliance Measurements from Wind Power Projects”, Ontario Ministry of the Environment Annual Engineers’ Professional Development Day, Toronto, May 2014

“Post Construction Sound Survey Lake Winds Energy Park” Nova Scotia, 2011.

“Addressing Low Frequency Sound and Infrasound from Wind Turbines”, Canadian Acoustics, Vol. 29, No 3, 2011.

Associations & Affiliations

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