[HamWAN PSDR] VOTE: $2k budget for Haystack site hardware

[Kenny Richards]

I was going to ask about the lack of batteries on the list as well. Is this
just to add addition charging capabilities to an existing battery bank?




On Sat, May 3, 2014 at 3:11 PM, Tom Hayward <esarfl at gmail.com> wrote:

> To get this straight, this vote is for power systems at Haystack only.
> HamWAN modems, antennas, mounting hardware, cable, etc., will need another
> vote. Is this right?
>
> I have moderate experience with solar systems, and some of the line items
> don't make sense to me.
>
> - What is the Meanwell 24V->12V converter for? The modems run on 24V. What
> do we need 12V for?
> - What is the IOTA AC->24V converter for? I thought we didn't have AC at
> the site. Also, it's available from a seller on Amazon for $150 less than
> quoted.
> - Why is there no MPPT charge controller? Or batteries?
>
> Tom KD7LXL
>
> On Sat, May 3, 2014 at 11:43 AM, Bart Kus <me at bartk.us> wrote:
>
>>  Hello,
>>
>> I'd like to propose we allow spending of up to $2k to cover the costs of
>> installing a photovoltaic (solar) power system @ Haystack.  The site owner
>> has allowed us to host a site up there as long as it doesn't impact their
>> power budget.  The site is not wired to any utility power, and transporting
>> propane to it is expensive.  This is a 1-time cost, and the hardware will
>> remain property of the site owner.  In exchange they'll be giving us new
>> mounting points for 2 dishes and 2 sectors, which will have a huge impact
>> on coverage and extending the network.  Our recurring cost for the site
>> will be $0/mo, which is an ideal long-term arrangement.
>>
>> Here is a list of the hardware required:
>>
>>
>>      Costs converting 12VDC to 24VDC          Item Desc Link Quantity
>> Cost Total  1 24->12VDC Meanwell  SD-50B-12
>> http://www.mouser.com/ProductDetail/Mean-Well/SD-50B-12/?qs=jVZN1Oke4Bx6867ajq9o4g==
>> 1  $51  $51  2 SolarWorld 275 Watt Mono Module
>> http://www.backwoodssolar.com/solarworld-270-watt-mono-module-1359 2  $347
>>  $694  3 30' Cable with Locking MC4 Plugs
>> http://www.backwoodssolar.com/30-cable-w-locking-mc4-plugs 2  $30  $60  4 Midnite
>> AC Din Rail Mount Breaker - 15A & 20A (15A is needed)
>> http://www.backwoodssolar.com/outback-60a-ac-breaker 2  $19  $38  5 Fuse
>> Holder and TWO 60A Class R Fuses
>> http://www.backwoodssolar.com/holder-for-100-amp-fuse 1  $28  $28  6 PV
>> Module Ground Lug/screw/nut
>> http://www.backwoodssolar.com/pv-module-ground-lug-screw-nut 2  $4  $8  7 Battery
>> Interconnect Cable - 24" - 4/0
>> http://www.backwoodssolar.com/products/batteries-accessories/battery-cables/24in-4-0-cable-with-lug-ends
>> 10  $26  $260  7a Battery Interconnect Cable - 24" - 2/0 Local ->
>> Pacific Power Battery (+$5/end to crimp) 10  $10  $100  8 IOTA Battery
>> Charger - 24V 40A - DLS27-40
>> http://www.backwoodssolar.com/iota-40a-24v-battery-charger 1  $395  $395
>> 9 Tax (.086) Sultan Mailing Address
>> http://dor.wa.gov/docs/forms/excstx/locsalusetx/localslsuseflyer_quarterly.pdf
>> 1  $78  $78.24  10 5% for cables/time/mounting etc
>> http://3.bp.blogspot.com/-yJZJIOW6lys/Twvf9ylPUGI/AAAAAAAACdk/YEUZm-ZR-QU/s1600/strongman.jpg
>> 1  $45  $45.49    Grand Total        $1,757
>>
>> In the $2k request, I'm also allowing ~$250 for shipping costs.  Solar
>> panels are large.  Anything not spent will be returned to the HamWAN budget.
>>
>> We already have all the other hardware required to deploy the site
>> in-stock.  Some of it is already deployed (Haystack-S3), and some is
>> sitting on-site (modems, 1 dish, other sector).
>>
>> Our present balance is $1,291.04, so we'd be going into debt for this
>> deal.
>>
>> The other cost of this deal is recognizing the site owner's sponsorship
>> of HamWAN by including their logo in presentations, and offering some
>> man-hours for site maintenance.  The big project this summer (aside from
>> this solar system install and the full HamWAN site install) will be helping
>> with installing a grounding system there.
>>
>> My vote on this deal is: YAY.
>>
>> --Bart
>>
>>
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>>
>>
>
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