I’d have to consult turbine manufacturers to see if entire gearboxes can be filled with it and still achieve the same performance, but there is contemporary evidence of using plant-based fluid alternatives to mineral oil.
Making the jump for turbines seems like a matter of political and/or corporate will
You can use soybean-based or canola-based oil for that.
Cargill, Shell, and GE Prolec make it for transformers.
I’d have to consult turbine manufacturers to see if entire gearboxes can be filled with it and still achieve the same performance, but there is contemporary evidence of using plant-based fluid alternatives to mineral oil.
Making the jump for turbines seems like a matter of political and/or corporate will