Not to mention that you need dry steam (high pressure) for efficient turbine operation...far beyond the capability of any OWB that I've seen to date. We used to run a small turbine at work on a feedwater pump in the coal boiler room. At 130 psi, we had all sorts of control problems due in part, I think, to the fact that mixed condensate rather than steam was leaving the turbine. Erosion of the turbine wheel due to the water still present in the low pressure steam eventually destroyed the unit.