Based on all the comments I read this morning, it seems that the transformer idea is the best for the following reasons. If a person rewinds the motor for a higher voltage (Thats great because it miminimizes loses and the current can go straight to the inverter) than that causes problems with using it for different applications. It might work great for a slow moving stream, but as soon as it put into a fast moving stream it could easly put out too much current for the inverter to accept. So using the transformer, or several, a person could use the one that best fits the stream speed allowing the generator to be move around from place to place. Most off the shelf inverter under 1500 watts can accept voltage ranges from 10-14 volts. So step up transformers of 2, 3, 4, 5, and maybe a 6 would meet just about every situation. Probably only the 2, 3, and 4 would every be used, because if the generator is only running at 2 volts the the power generation may be two small to worry about. The loses of the transformer don't seem to be of much concern because the unit appears to be putting out lots of extra power. I was really amazed how well it worked in my testing and how simple it was to use. The motor is completly stock, running in reverse, with a simple cage built around it. I hope to take some pictures of it post them later on.