PacificCorp, which serves 1.6 million customers in six Western states, could opt to pay an estimated $300 million dollars to install fish ladders, turbine screens and fish bypasses or remove the dams.
A PacificCorp spokesperson said the utility is a long way from making a decision on removal of the dams and hopes a settlement can be reached with various agencies and other parties -- which include environmental groups, Indian tribes and commercial fishermen.
The river modifications were ordered by the U.S. Fish and Wildlife Service and NOAA Fisheries. Under law, the Federal Energy Regulatory Commission, the agency that awards power plant licenses, must incorporate those requirements in any licensing decision.