The first of the three new turbines, the fixed blade, was installed in the Ice Harbor powerhouse on June 8, 2018. The first adjustable blade turbine currently being installed. These turbines are the first of their kind, designed by USACE personnel and Voith Hydro. The turbines were designed to improve fish passage. They also include greaseless components and improved seal technology to reduce incidents of oil leaking into the river. On top of being better environmentally, projections indicate the new turbines are 3% to 4% more efficient at generating electricity.