"The cost of large-scale hydro and run-of-river hydro haven't gone down, whereas the cost of wind and solar power continue to fall," explains David Austin recently featured in Business in Vancouver.

"Thirty years ago, when we did a large hydro project, it was the only renewable in sight," David said. "Now it's got competition from wind and solar, and as wind and solar continue to drop, once I've locked into my large hydro, I've locked it in for 70 years.

"You've locked into that for 70 years and what's happening is there's this huge technological revolution that you're ignoring."

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