An Ottawa man can't erect a wind turbine in his backyard after a municipal committee refused to grant him exceptions to city bylaws that bar the device.

The City of Ottawa committee of adjustment ruled against Graham Findlay Thursday after a hearing the day before.

The turbine had been expected to generate up to 15 per cent of the electricity needed to power Findlay's home. But in order to be efficient, it needed to be mounted on a 10-metre pole.

Zoning rules don't allow anything that high. In addition, city bylaws require tall structures to be set back a certain distance from the edge of the property, but Findlay's yard was too small to meet that requirement.

Neighbours had opposed the turbine, saying they worried it could topple onto their yards.