Engineering the delicate balance between renewable energy and river ecosystems
Hydropower is vital for a reliable electric grid, yet dams can block essential fish migrations. This video explores the science and engineering behind the technologies designed to help aquatic species navigate hydropower facilities safely.
While hydropower provides 6.2% of total U.S. electricity generation and 28.7% of all U.S. renewable energy, infrastructure like dams and culverts can restrict access to vital habitats. To mitigate this, engineers use various fish passage technologies. One conventional method is the fish ladder, a system of elevated pools used since the 1800s that directs fish upstream through a series of water-filled steps.
Because hydropower environments are extremely diverse, there is no single solution for every river. Engineers must balance high-performing infrastructure with environmental protections to ensure the long-term sustainability of ecosystems and the recovery of declining fish populations.
Source: How Fish Survive Hydro Turbines
