Here’s a self-sustaining 2-stage Tesla Turbine setup – watch the video…
Cryophorus 2-Stage Tesla Turbine self-runs by creating it’s own vacuum to boil water in a warm tank at low temperature. This vapor pressure runs the first stage turbine, while the second stage maintains the vacuum. This runs in this self-running mode as long as there is enough warmth in the front side tank.
There will be more disclosed at the 2020 Energy Science & Technology Conference, which has not be revealed publicly yet with possibly other relevant demonstrations!
If you want a bit more insight, it’s recommended to get this book. Tesla’s Engine – there are only a handful of used copies left. When those are gone, they’re gone!