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What would give me more power for a cheap home brew wind power system?

Should I build a Vertical Axis or Horizontal Axis Wind Turbine for this? We get a decent amount of wind every year (12 MPH in winter and 8 MPH in summer), the turbine would be no higher than 20 feet. So should i make a VAWT or HAWT? If you say VAWT don’t say ‘because it’s easier’ because I need to get as much power as I can outta this.

the easiest system to build is the vertical type which from the top side looks much like the sign for the astrological gemini ..the capture side is presented to the wind constantly on a simple outer bearing and race..it takes thrust and is called a TDO (tapered double outer) race bearing …the inside presses against a lower TDO and an upper singe cup like your wheel bearing in your car. Vertical units have a better approach height from the wind..take up less space and are not as testy when it comes to turbulence…In 1998 i built a small model based on a design i got from a friend that uses lightweight sheet metal ..We only had a few problems and that was in the collector ring..
Now for the horizontal…it takes up a lot of space..20′ x 10′ footprint..its got no way of responding to the change of wind direction..Unless you build the feeder horn type which captures and diverts the air downward onto primary compression blades…In this case you built a vertical mill and just improperly named it…turbulence from the ground and safety issues ( neighbors dog jumps in) all have an added problem..there are some very odd calculations for the turbine collector and the way the blades a shaped and how captured air is exhausted no to cause a back pressure. Here’s what i found out..Height is 3 times width. of turbine tube… if the internal fan is 3 feet height is min of 9 feet..12feet is great 15 feet is best. If your going to build this thing from scratch remember to use a massive shaft (hollow) .My favorite is schedule 10 steel 4″ .. bearings are expensive. grease is cheaper ..the fan is in a spiral along the shaft the pitch is about 1 turn in twenty
feet. Your selection of generators needs to be a higher value 8% than your actual design load. the transmission if used on a 90deg box should use lightest oil. every time you add a piece to the drive train you loose power…to best regulate the high speed use a flywheel ..I made one from from a 1″ thick 18″ diameter steel plate it will provide carry over by inertia short cycle and if you want you can attach your MAGNETIC induction tachometer to it…gosh there are so many things in favor of a vertical mill in most applications ..I think its the only way to go…But i am going to guarantee any of these are not tweak free.. No matter the skill or the budget ..Your in a very grey area…With the wind info you sent an 85% eff (during operation) will produce about 2400 watts of power at 120volts parasitic losses can account for 10% mechanical loss for 5 %..In a start up mode expect that it will take 3-5 months to get the mechanics correct. and for the electrics just follow NEC and other codes ..Please find a good slip ring collector. I salvaged the shaft form a broken gasoline welder for mine (250 amp)…all in all its sound like fun wish you were down the street…this was probably more than you wanted for an answer but I just couldn’t resist..Have fun From the E

Build A Cheap Home Wind Turbine