Built on Assumptions
Towers are engineered to withstand worst probable operating conditions because there's insufficient operational data to work from. Most never see that worst case. The gap between what an asset was designed to survive and what it actually endured is real value — sitting unused at exactly the moment operators need it most: deciding whether an aging asset is safe to keep running, or whether to sign the next PPA on the strength of that decision.
Vortex-induced vibration is real, measurable, and happening in your towers right now. Without a loading history to prove it, that value stays locked up — and operators are left deciding on assumptions, not evidence.
SCADA captures tower data, but at 1 Hz it can't see beyond Mode 1 lock-in. Mode 2 and Mode 3 VIV events carry higher fatigue loads and are invisible to it entirely. The data exists. The resolution doesn't.