The Department of Defense and E. ON have signed a memorandum of understanding to relocate 29 proposed wind turbines that would have interfered with US Navy flight training.
The pact also restricts the height of a planned transmission line to 120 feet (36.6 metres) above ground level.
The Navy says the agreement ensures continuation of critical flight missions near Naval Weapons Systems Training Facility Boardman in Oregon.
E.ON Climate and Renewables wants to install 223 turbines in north-central Oregon.
Turbines near or within Navy airspace can interfere with training and testing, as well as radar and telecommunications.
"As wind energy increasingly contributes to the nation's energy portfolio, it will be vital to maintain positive relationships with developers to protect critical Navy capabilities," says Rear Admiral Kevin Slates, director of the Chief of Naval Operations Energy and Environmental Readiness Division.