By 2021 more money will be spent maintaining existing North American wind farms than building new ones, according to market researcher IHS Markit.
Each year the existing base of wind farms expands, regardless of how many new projects get built, fueling the ever-expanding global wind operations and maintenance (O&M) market.
The North American wind O&M market is currently worth $5bn-$6bn each year, and will rise to $7.5bn
