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Cris Hein

Researcher IV-Environmental Science

Orcid ID

Cris Hein is a senior project leader for wind-wildlife operational challenges. Hein has studied bat behavior and ecology for more than two decades and bats and wind energy issues for more than one decade. Prior to NREL, he was the bats and wind energy program director for Bat Conservation International and the program coordinator for the Bats and Wind Energy Cooperative. While at Bat Conservation International, Hein led research focusing on understanding and reducing bat fatalities at wind energy facilities. Prior to joining Bat Conservation International, he was the lead bat ecologist for ABR Inc.—Environmental Research and Services.

Research Interests

Wind energy and wildlife interactions

Bat ecology and behavior


Ph.D., Forestry and Natural Resources, University of Georgia

M.S., Biology, Texas State University

B.S., Geology, Texas A&M University

Featured Work

Evaluating the Effectiveness of an Ultrasonic Acoustic Deterrent for Reducing Bat Fatalities at Wind TurbinesPLOS One (2013)

Behavior of bats at wind turbinesProceedings of the National Academy of Sciences (2014)

First Direct Evidence of Long-distance Seasonal Movements and Hibernation in a Migratory BatScientific Reports (2016)