Canberra Airport has raised safety concerns about plans to build a 13 hectare solar farm at Majura in Canberra's east.
The panels would be directly aligned to the main airport runway, which runs north to south.
Airport managing director Stephen Byron fears the design of the farm could reflect large amounts of light at pilots landing planes.
"It's directly under the flight path," Mr Byron said.
"It's a solar farm that's about 800 metres in lineal length so it's quite substantial and the pilots will be subject to this glare for quite some time as they come in."
"These solar panels are orientated so they shine directly into the eyes of pilots that are landing from the north flying southwards to land on the airport's main runway."
The airport is also concerned the development could interfere with plans to build a high-speed rail corridor into the ACT.
Mr Byron says the land being used for the solar farm may need to be allocated for a track.
"It doesn't seem to make a lot of sense to be building a solar farm which obviously has a long life on a piece of land which has this withdrawal clause that will expose the ACT government to compensation sometime in the future whether its for train or whether it's some road or other transport link."