VAWT
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Calculations
- Power Production - take this 16 kW VAWT - [1] at $65k in kit form (assumes $30k more for BOS). For average 6.5 m/s wind in Maysville, MO - power production is 4 kW for 8760 hours - or 35 MW hours! At 10 cents per kWhr - 35,000 kWhr is $3500 worth of electricity. Clear capacity to export to the grid.
- Comparison to PV - $4/Watt vs 40 cents per watt for PV - 10x less cost for PV. Cost of wind can be reduced to: $3k generator (off shelf), $10k structure. 3" shaft and bearings - $30/foot for shaft of 10' length = $300 + $100 bearings. DIY direct drive PM generator cost should be explored. Brute force electronics can be done. Cost design calculations should be done.
Links
Tech assessment. Is the VAWT a feasible candidate for wind power? Low cost due to ground mounting are a potential advantage
- discussion of pros and cons - [2]
Sourcing
- 50 kW brushless generator head, 1800 rpm - $2.2k [3]