Two students have a background in marine sciences involving ocean
platforms and are learning building energy modelling.

Is there a source for weather data that is generated from something like
a buoy or something that would not have any wind-blocks or other land
based influences?

I see there is data available on the EERE website for Kwajalein Atoll in
Marshall Islands but Im not sure if there are any big differences
between this data and a sole platform in the middle of the ocean.

Although the study is a purely a hypothetical exercise, close to Norway
would be ideal!