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This is November 2009  Back to October  Forward to December Remember to refresh your browser for the latest updates.

The wind turbine is boxed and waiting to be returned for the third time to South West Wind Power. There is now little hope it will ever function for a whole year without major failure of some sort. There have been two major failures just this year, with less than 100 KWh production between. This failure on October 30, found one prop cracked with water inside setting it off balance, the stator main bearings failed, and shorts to the stator and the yaw shaft ruining the brand new yaw shaft I replaced at my expense in June. The stator failed/shorted already once and had to be rewound, just two weeks after raising it to the wind. I see no evidence the magnet can impacted the stator because of the bad bearings, not that bad, just growling. When I spin the stator by hand the turbine emits a foul burning odor.

11/1 Net meter 999808. Total grid feed 31.60 KWh. Trackers 18.64, fixed array 12.96, total PV 31.60, turbine broken.

11/2 Net meter 999799. Total grid feed 30.18 KWh. Trackers 17.81, fixed array 12.37. South West Wind Power is willing to fix the turbine but apparently I must pay shipping to send it back, which is more cost than the cost of the total electricity the turbine has produced over the last 20 months. I just read an article explaining that the wind speed charts for Missouri are wrong and over valued and besides that the readings are rated at 200 feet above ground level. Not where small wind power is located or financially possible. If I add up the shipping, cost of new parts, and labor costs to maintain this turbine, the cost of power generated is several dollars per KWh. I really need to question the logic in returning it to service. $15,000 to install a new Kestrel 3 KW turbine, I can install close to 3 KW solar PV and have several times the power year round.

11/3 Net meter 999786. Total grid feed 31.80 KWh. Trackers 18.89, fixed array 12.91.

11/4 Net meter 999775. Total grid feed 31.52 KWh. Trackers 18.70, fixed array 12.82.

11/5 Net meter 999767. Total grid feed 31.26 KWh, trackers 18.56, fixed array 12.71. Array three was producing 288 VDC today, for future reference.

11/6 Net meter 999757. Total grid feed 28.54 KWh. trackers 16.76, fixed array 11.78.

11/7 Net meter 999752. Total grid feed 29.09 KWh. trackers 17.20, fixed array 11.89.

11/8 Net meter 999743. Total grid feed 29.89 KWh. trackers 17.70, fixed array 12.19.

11/9 Net meter 999735. Total grid feed 5.49 KWh. trackers 2.56, fixed array 2.93.

11/10 Net meter 999751. Total grid feed 17.12 KWh. trackers 9.68, fixed array 7.44.

11/11 Net meter 999761. Total grid feed 28.67 KWh, trackers 16.90, fixed array 11.77.

11/12 Net meter 999751. Total grid feed 20.82 KWh, trackers 12.18, fixed array 8.64.

11/13 Net meter 999742. Total grid feed 25.64 KWh, trackers 14.99, fixed array 10.65.

11/14 Net meter 999739. Total grid feed 20.56 KWh, trackers 11.64, fixed array 8.92.

11/15 Net meter 999743. Total grid feed 8.80 KWh, trackers 4.44 KWh, fixed array 4.36.

11/16 Net meter 999759. Total grid feed 1.19 KWh, trackers 0.51, fixed array 0.68.

11/17 Net meter 999781. Total grid feed 3.23 KWh, trackers 1.42, fixed array 1.81.

11/18 Net meter 999803. Total grid feed 1.92 KWh, trackers 0.85, fixed array 1.07.

11/19 Net meter 999834. Total grid feed 24.40 KWh, trackers 12.61, fixed array 11.79.

11/20 Net meter 999837. Total grid feed 22.64 KWh, trackers 13.37, fixed array 9.27.

11/21 Net meter 999839. Total grid feed 17.67 KWh, trackers 10.12, fixed array 7.55.

11/22 Net meter 999844. Total grid feed 21.23 KWh, trackers 12.33, fixed array 8.90.

11/23 Net meter 999845. Total grid feed 4.54 KWh, trackers 2.17 ,fixed array 2.37. Here is a photo of a 3.15 KW array I built and turned on today for a client in Eminence, MO.

11/24 Net meter 999866. Total grid feed 2.57 KWh, trackers 1.12, fixed array 1.45.

11/25 Net meter 999883. Grid feed 23.88 KWh, trackers 14.14, fixed array 9.74.

11/26 Net meter 999888. Grid feed 19.82 KWh, trackers 11.36, fixed array 8.46. At 2:00 I switched us back to our grid service and off of protected distribution. I also unplugged the large freezer which is using over 7 KWh every day, in order to stop using our reserve power in the net meter.

11/27 Net meter 999888. Grid feed 27.71 KWh, trackers 16.74, fixed array 10.97.

11/28 Net meter 999880. Grid feed 27.45,  trackers 16.56, fixed array 10.89.

11/29 Net meter 999873. Grid feed 4.77, trackers 2.36, fixed array 2.41.

11/30 Net meter 999888. Grid feed 25.95 KWh, trackers 15.32, fixed array 10.63.

This is November 2009  Back to October  Forward to December

 

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