Improving PCE
Addressing issues surronding the PCE program so the program encourages the public policy goal of low cost rural electricity.
network of Alaska energy enthusiasts & experts
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Don Eller
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- Tanana, AK
- United States
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Don Eller's Groups
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AK Energy Politics
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Wind Working Group
35 members
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Improving PCE
7 members
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Solar-PV
15 members
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Hydro Technology Work Gr…
10 members
Don Eller's Page
Latest Activity
Improving PCE
Addressing issues surronding the PCE program so the program encourages the public policy goal of low cost rural electricity.
Ingemar Mathiasson joined Don Eller's group
Don Eller commented on Markus Mager's group 'Hydrokinetic Working Group'
As of today we have produced 300kwh out of the Tanana paddle wheel. Unit has stayed functional inspite of all the drift, there were 4 major log jams which required hours to clean out. Any device which goes in to the river must be able to deal with…
Don Eller commented on Markus Mager's group 'Hydrokinetic Working Group'
We are back producing again and have a nice steady streach of producing a little over 1 kw continiously Had to upsize a jack shaft from 1 1/4" to 2", there is a lot of torque and the 1 1/4" shaft could not handle it. The wheel has…
Don Eller commented on Markus Mager's group 'Hydrokinetic Working Group'
PICT0008.AVIPICT0014.JPGWheel screen shot.pdf
Don Eller commented on Markus Mager's group 'Hydrokinetic Working Group'
Hi all,
We have actually produced energy and put it on the grid. Currently the wheel is in for a little work, stiffening and reinforcing. It is very hard to comprehend the forces at play until you see them deform an 1 1/4" axel or a piece of 2…
Jack Schmid replied to Don Eller's discussion 'Drag Turbine Gearing' in the group Hydrokinetic Working Group
Don,
This looks encouraging. I am with you on strong and simple.
I look forward to some kW-hr numbers, if you get a respectable output coupled with longevity, you have a winner.
Cheers,
Jack
Don Eller replied to Don Eller's discussion 'Drag Turbine Gearing' in the group Hydrokinetic Working Group
Hi Jack,
Yes we are coupling the Ginlong PMG to the paddle wheel. I should have some pictures late this afternoon or tomorrow morning of the completed setup. We have hand spun the wheel and the generator really spins up to speed. Still have a…
Jack Schmid replied to Don Eller's discussion 'Drag Turbine Gearing' in the group Hydrokinetic Working Group
Hi Don,
This looks like progress. You are working on one of the more difficult aspects of drag turbines (as you well know) and that is converting energy from a high torque device to useful shaft work. Will you be coupling this to the generator you…
Comment Wall (2 comments)
- At 8:38am on May 11, 2010,
Greg Egan said…
- Don,
My email address is greg at remotepowerinc.com. If you email me your phone number I'll give you a call this morning.
Best,
Greg
- At 7:48am on May 11, 2010,
Greg Egan said…
- Don,
Regarding the power output from the CCHRC arrays in Fairbanks, I live in Fairbanks and work for Remote Power Inc., the company that designed and installed the PV systems at CCHRC. The power output recorded from the arrays at CCHRC is NOT an accurate representation of the power that a PV array would be expected to generate in Fairbanks AK for the following reasons. Here are a few facts that may help answer your questions.
1) one of the arrays was made up of experimental modules manufactured by jxcrystals. The modules have concentrating mirrors and were rated at 180 watts each. They NEVER put out much more than about 120 watt modules so those would be hard to compare with anything..
2) one of the arrays of SolarWorld 165's was left turned off and faced basically true south so they could compare the other array of SW 165's that was tracking, to it. (the non tracking array is the easternmost array of the 4) So that array should only be counted as a fixed array when comparing with PVWATTS.
3) this leaves arrays 2 &3. One of these is an array of 16 SW 165's and one is 16 Sharp 170's. They are on dual axis trackers and as far as I know they have been working flawlessly since installed so they should compare favorably with the PV watts numbers.. EXCEPT FOR ONE IMPORTANT FACT:
much of the time the snow on the modules has been left on the modules. I don't know why they did this but it's true.
One thing anyone contemplating the purchase of a wattsun tracker (like the ones at CCHRC) is that they can't tilt 90 degrees (plumb). The farthest they'll go is 75 degrees and at 75 degrees in a non windy environment like Fairbanks the snow WILL stay on a solar array for a long long time.
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