Here's a static generator which converts hv to static:
This is based on the Ion Injector from Star Trek: Enterprise (in the trademark segment near the beginning of each episode). This is made from a small distributor cap which is fed with an ignition coil's spark. As long as the input voltage at the center is high enough, there isn't any output spark until the spinning knife edge bus bar inside builds up enough static charge inside the cap for it to discharge. (This is just like a capacitor storing .707 times its capacity before discharging.) The discharge spark is yellow. If the input voltage isn't high enough to produce ions, the output spark is continuous, with a normal blue color. The system could be scaled up with a larger internal volume and multiple knife edge electrodes.
This is Open Source and has been disclosed in the past.