Storm-Proof Wind Turbines

NPC's folding blade wind turbines are ideally suited for building rooftop installations, since they can fold out of harm’s way during extreme high winds. This also minimizes the structural requirements of the roof and simplifies the mounting and installation process. A large 50' diameter version is now being constructed as part of NPC’s contract with the Hawaii Center for Advanced Transportation Technologies (HCATT).

Below is the original and highly successful prototype that was designed, built, and tested in Hawaii.


Assembling the NPC 3kW folding wind turbine. The blades are in the 50% folded position.


Close-up view of the turbine while in use.


Checking all components before initial testing.