I have made a Solar collector out of a 10' diameter satelight dish and lexan mirrors. I have a collector that converts water to steam ( 20lb propane tank) at a rather frightening rate I must add. Now i have a dilema. Where can I buy a turbine that i can bolt onto this scary steam source. The output of this device is a 1/2 copper pipe. I just need to make my generator spin. tyhen off grid I go. I was thinking of making one however i would not be able to make one with any great efficiency. Suggestions? If I can maintain even a 40% eff, this thing should make 3000w of power.