Hi Kimfmx.. Sorry to rain on your parade.
I used to live in Melbourne ( Australia) where it was prohibited for households
to install rain water tanks- can you believe that?
Now (due to the drought) the government is actually subsidising such installations and mandating that all new houses be built with tanks installed.
I guess what I'm saying is "don't bother".
If you (in order to comply with local regs.) need to install a low VAWT the the power you will get will not justify the cost.
You would be far better off- both power wise and cost wise to install a solar array on your roof- your local authority will have minimal objections to this.
I do believe there will come a time when solar panels will also be mandated in new houses.
Ps. Approach your local authority and put it to them that they should build a
"Community Wind Turbine" - maybe in the local industrial estate- so that you and every one else, all contribute to and benefit from the facility.
Regards.
Angus. (The older I get , the better I was).