Well the turbine Dan and company built for me is up and running. Its a 16 footer mounted 20 feet high. It has survived 50 mph winds and has produced about 150 KWHRs in 2 weeks. 50 KWHrs have been pushed back to the grid and about 100 KWhrs have been used by my home.
Maximum output just before furling is about 1800 watts AFTER INVERTERS. I say after inverters because there are losses in the battery bank and in conversion thru inverters. I assume a 20% loss thru inverters and batteries so 1800 X 1.2 = 2.16 KW.
My system is 48 VDC and my Outback GVFX 3648 inverters are set to Sell to the grid at 52 VDC. A 5 MPH wind will start blades on turbine turning. With just that low of wind my batteries will float at 52 VDC. Nothing sells or supports but the turbine will power inverters.
Only issue is the Outback inverters. My master inverter will activate the slave at about 800 watts and both will Sell at about 400 watts. Not too efficient for a couple of 3600 watt inverters. I would like to shut off second inverters Sell function but Outback cannot seem to come up with a good way of doing this.
Power company installed a dual meter and has made sure I cannot feed power to grid if it is down. I also needed a lockable disconnect so power company can physically disconnect me from grid if need be.
I also have a Lakota turbine. Just for comparisons the Lakota averaged about 2 to 300 watts in 30 to 50 mph winds. Dan's machine averages about 900 watts with peaks of 1900 and lows of 300 watts. I took the lakota down to install Dan's machine. I will be putting it up in another location soon to suppliment the home built unit. Between 360 watts of solar panels, a lakota, and the home built my power bill should consist of just a facility charge of $9.00:)
I am in a net metering state WYOMING and any extra I push back I can retrieve later for free, as the power company only pays me for my extra produced once a year. And they only pay Defered cost so about 4 cents per KWhr vs the 10 cents I pay for it. So I guess an electric boiler will be in the works!!