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Wind Genny at Miller Farm

The Plan

Overall design:

Design changes:


Swift Turbine:

Other turbines we considered:


Design Notes - March 30th, 2009


Shopping List

(Charlie has a copy of the parts list that RP&L generated from this. They are willing to support some amount of the purchase price, I can't remember the number now but Mic should.)

1. 130 foot 6AWG NMC power cable

   $300.00 at (theirs are single conductor, we'd need at least two)
   or 4x 130ft 12AWG NMC outdoor power cable = $395.60 at Lowes
   2x 50' 1/2" aluminum conduit = $34.44

2. Duplicates of the Dennis Outback equipment

    PDFs are here:
    Prices here:

unfortunately it seems that the flexmax charge controllers are designed for solar arrays and are not compatible with a wind source. Here's why: Granted the risk of blowing out a charge controller on our genny would probably not be of grave concern (it would take 50mph winds to get our genny to do above 7 amps on a 24VDC system), do we still take the risk given that the warranty and service won't cover it? MacroWind sells inverters and controllers that are compatible it seems with solar PV input. Randy from Third Sun thinks this to be the simplest way to handle our problem, however he did mention that using a step up converter, integrating wind into the system we have in Dennis is possible so perhaps it would be with the Farm. We need to have a separate controller for each application though but not necessarily a separate inverter.

3. Batteries

15202, the sealed AGM is closest to what we have in Dennis but 15210, the Gel battery, would give us better value. We'd need some multiple of 2 of them at any rate.

4. Enclosure The dimensions we need to work around are roughly 12x8x16 for the inverter, 15x4x7 for the solar charge controller and 6x6x10 for the wind charge controller

This will fit at least those three components, but probably not much else:

This would be extra roomy:

Here's the closest I've found There's no price list but they can come plenty big. I'll work on trying to match more precisely what we need. Closest Distributer is Reco in Indianapolis: 5610 W. 73rd St. Indianapolis Indiana 46278 Phone: (317) 297-9000

5. circuit box and fuses.

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