“Wind’s unpredictability means it truly has no generating capacity value, and its construction will not displace building any new coal or natural gas generating capacity. Grid reserve margins require wind-backup, and the inefficiency of quickly firing up a natural gas unit to meet erratic wind generation output means any emissions displacement is minimal. Wind is simply an additional capital cost which proves to be more than twice as expensive for the ratepayer.” —Tom Hewson, “Calculating Wind Power’s Environmental Benefits”, Power Engineering, July 2009
https://www.wind-watch.org/quotes.php?t=92
