"On one hand, it's good news that the market is moving that fast and we're competing with other energy sources, but I think the way renewables is progressing, it's accelerating at a rate that I think very few people could plan for," David Hickey, Siemens Wind Power's chief executive, said in a phone interview.

Is the high cost of energy the only reason Ontario greenhouse businesses are looking to the south to expand, or are there other factors at play? OGVG Marketing & Economic Policy Analyst Glen Snoek believes energy-related policy decisions by the Ontario government are to blame, but Taylor lists one more. “Energy is a significant factor,” she says. “But there are also investment incentives [being offered in various U.S. states] that aren’t being matched in Ontario.”