The X-Wind design uses 2 helical blades that distribute loads evenly and minimise fluctuation to less than 7% over the course of full 360 degrees revolution (this compares to 150% for a conventional 3 straight bladed HAWT)
The minimal load variation avoids resonance throughout the operating range and eliminates unwanted vibrations in the tower. This improves durability, lowers maintenance costs and enables the 5 year period between maintenance visits.
This patented design* is unique to X-Wind and results in longer component life and lower stress over the lifetime of the turbines.
(* patent pending)