I have a satellite dish converted to a solar collector. It isn't very big, just a small scale prototype at the moment. I have measured just over 300 degrees Celsius at the focus point. I am considering either using a sterling engine or a steam turbine to generate some electricity. The problem is hobby sterling engines are somewhat expensive in South Africa and turbines seam to not exist in these small sizes. Should anyone know of turbines smaller than 1kW I would love to hear about it. If not, any tips on manufacturing one myself?