This bill matters because it locks in a specific way of operating the major hydropower system in the Northwest, aiming to provide more certainty for energy generation and river navigation. If this bill becomes law, it ensures that the federal government will continue to operate the dams according to the 2020 plan, which proponents argue helps maintain a stable and affordable power supply for millions of people. It also makes it significantly harder for future decisions or studies to reduce the amount of electricity produced by these dams or to restrict river navigation, unless Congress passes a new, explicit law.

Without this bill, the federal agencies would have more flexibility to adjust dam operations based on evolving environmental concerns, changing energy demands, or new scientific findings, potentially leading to different outcomes for power generation, river navigation, or fish populations. The bill reflects a debate between prioritizing energy security and existing uses (like navigation) versus potential environmental restoration efforts that might require changes to dam operations, such as dam removal or breaching, which this bill would effectively block without new congressional action.