[NYFreeper]

Any knowledge on the incidence of maintenance for these monstrosities?

The mere fact that these things are 200-300 ft above the ground drives the cost up significantly.

[DTogo]

The mere fact that these things are 200-300 ft above the ground drives the cost up significantly.

Unless a specialized crane is required to change out a major component, the 80m elevation of most turbines (hub height) plays little part in their operating cost - most are operated remotely by computer.