$PSID A May 2017 article from Droneblog.com notes that it can cost as much as $3,500 for a helicopter or $3,300 for a four-man crew to do an inspection or repair job for a hydroelectric generator under difficult conditions. However, with a drone, the cost can be as low as $300 by comparison. As such, ENG is making this proactive move to incorporate new technological solutions to help gain a market edge.

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