quote:
Originally posted by rwarn17588
quote:
Originally posted by Wrinkle
Tulsa doesn't come close to that. We're in a Class 2 wind zone, average of only 7-9 mph.
According to the National Weather Service, Tulsa's average wind speed is 10.2 mph.
Big difference.
http://www.srh.noaa.gov/tsa/climate/windavg.html
I was kind of guessing, knew it to be Class 2, missed the range slightly. The Class 2 to Class 3 border is 11.5 mph. Class 3 would be considered minimal for any wind power installation.
But, then again,
other maps show Tulsa in the Class 3 zone (near the edge). So, depends on what readings one uses.
Very marginal here in Tulsa proper in any case.
Virtually all smaller turbines use 12 mph as their output point for documentation on annual kWHs.
Bergey's 10kW turbine, IMO, should be rated as only about 5kW since that is more practically what one would expect of it at a 12 mph average.
But, most small turbines rate that way, different from large turbines, which do better at stating their real output.