VAWT: Difference between revisions
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:*Check out assembly - [http://www.anew-institute.com/small-vertical-turbine-assemly.html]. | :*Check out assembly - [http://www.anew-institute.com/small-vertical-turbine-assemly.html]. | ||
*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. | *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. | ||
*Sample structure - 1/2" wall square tubing legs -120' - $3240 for tower + concrete 10 yd ($1000) + BOS = $5k tower. Then blades - 60' vertical + 36' horiz = 100' more - $2700 -> $8k total structure. $3k gen. $2k power electronics. $2k BOS. $15k cost for 16 kW | |||
=Links= | =Links= | ||
Tech assessment. Is the VAWT a feasible candidate for wind power? Low cost due to ground mounting are a potential advantage | Tech assessment. Is the VAWT a feasible candidate for wind power? Low cost due to ground mounting are a potential advantage | ||
Revision as of 06:36, 3 May 2016
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.
- 7.4x4.7 diameter and height for a swept area of 35 sq m. If power proportional to swept area, then 3 kw at 6 m/s translates to 1 kW average power with a 12 sq meter swept area.
- Check out assembly - [2].
- 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.
- Sample structure - 1/2" wall square tubing legs -120' - $3240 for tower + concrete 10 yd ($1000) + BOS = $5k tower. Then blades - 60' vertical + 36' horiz = 100' more - $2700 -> $8k total structure. $3k gen. $2k power electronics. $2k BOS. $15k cost for 16 kW
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 - [3]
Sourcing
- 50 kW brushless generator head, 1800 rpm - $2.2k [4]