October a Record Breaking Month

Another record broken.  From Sept 27 to Oct. 27 We produced 408 KWH for the month. Average wind speed was 6.3 mph. The inverters recorded that they produced 529KWH for the month.  Also, we have been running without an outage since July!

Last Sunday Scott from Redriven was here and upgraded our system (Nacell, long board and HMI to version 3.34. 

This was not a big upgrade. You can now get live wind speed on the main screen . The new software has Internet connection capability again. The main screen now has RPM, MPS and Degrees. It also had better error handling so there will be few times when it completely shuts down based on faults alarms.  We've had it for 6 days and so far it seems better than the last code. 

Another New Best Day Ever Oct 15th.

The wind has picked up and so has the power we are making.  84KHW in a 24hour period.

Here is what the wind looks like for the period 6am to Midnight with an average wind speed of 15mph.

Absence of Wind Made for a Lackluster Month

The wind was abysmal this month. With the exception of a few good days, there wasn’t much wind at all. The average wind speed for the month was a mere 3.3 mph. The wind turbine just breaks even in that range. This month, all the blame should be placed on Mother Nature. The wind turbine was ready to go but with no wind , it couldn’t produce. September 13 was the exception for the month the new best day ever but it couldn't make up for a lackluster beginning and end to the month.


 This month we made a total of 69KWH.

Wind Sept 2011

November Results

This month the wind turbine was down more than up but in the last two days we have made more power than we did last month. The new Redriven system seems to be much better at reducing the parasitic power needed to just keep the system up.



This month the production meter that tracks the power that we can use read 85KWH.  51 KWH were produced  just yesterday.

The inverts combined for the month made 131 KWH. I believe a lot of that power was used to raise and lower the tower. I think we lowered and raised the tower about 5 times this month. I'm not exactly sure how much power that uses but with the weight of that tower if has to be significate.


Here is the wind chart  from a neighborhood weather station. We missed a bunch of great wind days this month but last two days were really windy.

The one month results are in

No drum roll please . . . Since National Grid was here July 27 – call that day 0, we are @ negative 67 kwh. Yes, when there is no wind, you use more power than you make. This month we’ve had a few windy days where we made some power, but we’ve had many more where there was no wind at all.



Where did I get the -67 KWH  reading from? NYSERDA requires the installer to include a meter that measures power going to the grid. This meter goes both ways too. On a windy day it increases and on a no wind day is shows that we are using power from the grid to run the turbine. Unfortunalty, this month we've had a lot of no wind days.

This is a graph from a very close by weather station that shows the winds for August.


I emailed Re-driven to see if they are working on some adjustments in the newest controller software to cut down on the power usage during no wind days. Here is an example of what we were experiencing; We were eating dinner outside on our deck the other night. It was a summer evening without a drop of wind. While we ate, over about a 20 minutes period, the yaw motor turned the turbine twice. I’m assuming it takes a lot of power to move that heavy turbine head and there was no apparent reason to move it. Redriven asked that I move my wind start setting from 2 to 4. (see below pre -change) I just did this yesterday. Hopefully, that will cut down on running the yaw motor when there is no hope of making power.

I finally read the Aurora inverter owner’s manual. One thing I learned was how to set the currency to USD (US Dollars) from EUR (Euros). I like to think of myself as a citizen of the world, but I pay for most things at my house in USD. I’ve also learned how see th amount of power we’ve made in the last 30 days. This excludes the power used to run the wind turbine and associated equipment.


Inverter output


Inverter #1 97.6 kwh

Inverter #2 87.6 kwh

185.2 kwh


It makes sense that Inverter #1 has is reading more power. They are programed to have # 1 come on line first, only after it hits a threshold does # 2 go on line.  This is to save power I believe.


Originally, I was using 9 cents per KWH when I calculated the pay back. Now that I further exam my bill for the exact cost it takes some calculation. The price of power is 6.4 cents per KWH. I get some renewable energy from Green Mountain for 1.6 cents extra charge and the delivery charge from National grid of 5.3 cents per KWH. Also some taxes and the SBC/RPS. This would put my real delivered cost at 15 cents per KWH. I’ll have to use this new figure when I figure out my payback again – after we get some wind.


Delivery 5.3
Delivery Adj. 0.983
Incr Stat Ass 0.307
SBC/RPS 0.594
Tax 0.14368

Electric supply 6.44
Renewable service 1.6
-----------------------------
Total cents per KWH 15.36768


That .59 cents SBC/RPS is the charge that helped NYSERDA pay for their portion of my wind turbine cost. Thank you to all of you that have paid for my wind turbine with your RSP charge for electricity use! I have no idea what Incr State Ass - is about.

So at the end of one month, I’m now $10.29 behind. We could turn off the turbine for “no wind” days, but then we might miss some wind when we are away from the house or in the middle of the night. Maybe by changing the wind start setting from 2-4 will help too.


I still have great hopes for September, when the winds should pick up and we’ll have fewer no wind days eating up my power. You can see from the Inverter stats I'm making power on windy days.


Stay tuned.

NYSERDA approval has arrived

Great news! I’ve got my NYSERDA approval. We could start poring cement, but I’d still like to find out how much more it would cost to go up 20 feet or ever 40 more feet. I wanted at least 100 feet in the beginning, but they didn’t make a 100-foot hydraulic tower then. They do now.

My installer doesn't have the pricing for the higher towers yet. They’ve got it for the 20KW but not for my 10KW. Just another week and ½, but that is what they have been saying for a month or so. I think what I’ll do is talk to my town about what it will take to amend my permit to cover up to 120ft just in case I can afford to go the extra feet.

It really means a lot to the projected energy out put. Here are the stats the NYSERDA’s way of measuring.

With an 80 ft tower I could produce 41.1 KWH daily
With a 100 ft tower 52.7 KWH daily almost 28% more
With a 120 ft tower 63.6 KWH daily 55% more power

If power was 10 cent a kW the power I’d be producing would be 4.11 dollar per day with the 80ft tower or 5.27 per day.

I’d have to go back to NYSERDA to get there approval again for the higher tower. I’m not sure how many more months we’d be waiting. They give more money based on tower height. Also, the Federal tax credit is uncapped so I’d get 30% back on the added expense of the extra feet.

It is a very windy day today. Wish I had my wind turbine up and spinning.