Proceedings of the National Academy of Sciences: https://www.pnas.org/doi/10.1073/pnas.2612674123

and offer up actionable suggestions to reduce deaths:

  In addition to the high number of bat deaths, the paper identifies factors that could help reduce fatalities. These include changes to turbine design and placing wind facilities in locations where bats face a lower risk of being killed. "Collectively, these results suggest that siting strategies to reduce bat fatalities are possible, but species-specific approaches could be beneficial."