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Lights on in the Barn


By SparWeb, Section Remote Living
Posted on Wed Sep 24th, 2008 at 05:59:57 AM MST
All power generated by Wind

Hi everyone.
Never expected to be posting to this part of the forum so soon - I can't claim to be living "remotely", although anybody who drives from Calgary to my acreage in the country thinks I do.

Having located the new barn on the best spot, it was obvious that giving it electrical power from the utility would mean a Lonnnng trench and run of wire.  The utility pole is 300 feet away, and the wire would have to go around the house if it connected to the utility service directly.  The alternative, tying it into the house, would require an electrical modification in the house - where there are no available circuits in the panel.

Well I never intended for my hobby to provide this kind of solution, but frankly it has just paid for itself.  Every penny.  Around Calgary, these days, contractor's rates for digging a 300 ft trench and putting in a 50 Amp service to that barn would run me about 8-10,000 dollars.  I haven't yet spent 6, between the tower, inverter, wiring, and controls.



I buried the wire from my battery shed to the barn on labour day weekend (I think americans call it something else and in the UK they don't even get a bank holiday early in september).  It took me a fair bit of time to sort out the wiring business with the inverter because the cables and amperages are so large.  It's a Xantrex 4024, requiring OO cables and an appropriately sized fuse.

With the wire laid in, and the inverter finally mounted in the shed, I just needed to go to the electrical wholesaler's store and pick up standard boxes, breakers and wire.  Ahh familiar territory.  And here's the result:



As you can see it made a pretty picture.  That's the new barn to the left, with the light on inside.  You can even see the glow in the upper roof windows.  The glare on the right of the picture is a light inside a horse shelter that I put in last year as a "dump load", and it still serves its purpose.  There's also a flood light in the barnyard so my wife can do her chores during the dark winter months.  We're up at latitude 51, and winter days are only 8 hours long in December and January.

Very satisfying to see one's hobby put to good use.  Anybody who is just starting to tinker, thinking they can't build anything useful, just think of me, starting out with piddly VAWTs just 3 years ago.  Don't abandon a project just because it may not be useful in itself.  What you learn from that project propels you forward in the next and the next.  Before you know it the installation manuals start making sense and other people say the things you make look neat, and if you stick to it long enough, you might even impress your spouse!  :-)

Steve

Lights on in the Barn | 10 comments (10 topical, 0 editorial)

Re: Lights on in the Barn (3.00 / 0) (#1)
by DamonHD (d@hd.org) on Wed Sep 24th, 2008 at 12:04:26 AM MST
(User Info) http://www.earth.org.uk/

Good stuff!

(Only 51N? You soft southerner!)

Rgds

Damon



Re: Lights on in the Barn (3.00 / 0) (#2)
by wooferhound (tim((NoSpamAt))wooferhound.com) on Wed Sep 24th, 2008 at 12:25:01 AM MST
(User Info) http://wooferhound.com

Don't you have a story about your wind generator that you can link to?
W o o f -={(



Re: Lights on in the Barn (3.00 / 0) (#6)
by SparWeb (sparweb at ANTISPAM_hotmail_com) on Wed Sep 24th, 2008 at 08:21:53 AM MST
(User Info)

Click on my user name.  I go on and on and on about that.  This is a refreshing change of topic.
Steven Fahey
[ Parent ]


Re: Lights on in the Barn (3.00 / 0) (#9)
by SparWeb (sparweb at ANTISPAM_hotmail_com) on Thu Sep 25th, 2008 at 11:44:59 AM MST
(User Info)

Sorry; just didn't have time to fill in details yesterday.
The windmill is featured in other postings I've made over the past year or so, but with so many changes, someone who hasn't seen it yet would have trouble finding the "current status".

The windmill has an 8-foot prop attached to a converted 3-phase motor.  The motor was a 3 horsepower industrial motor.  After putting the permanent magnets on it I experimented with 12 volts, but I'm getting more power now that I can operate at 24V.  Over the summer (when there isn't much wind anyway), I disassembled much of my battery and control systems.  I have re-installed the Xantrex C40 controller (now it has a lightning arrester).  The battery bank is a discarded set of GNB Absolyte cells, which are good enough for my purposes, but they do show their age.  At 24V there is about 800 A-hr of name-plate capacity, but considering their age, my desire to not discharge below 50%, and winter temperatures in the shed, I only want to use about 2-300 A-hr before a re-charge.  Converting that into watts and accounting for inverter's efficiency I'd like to think I have 4000 Watt-hours available.

Power is drawn from the batteries by a Xantrex 4024 inverter, bought used from another forum member.  (Chad if you're out there, I'm very happy with it, thanks again)  The inverter is hard wired to a circuit-breaker box with a 30A feed to the barn.  The underground wire could accommodate 240V if I need to in the future, but for now there's only one phase of 120V because that's all the inverter will give me.  (nb: if I were to step up to 240V, then the service would be de-rated to 15 or 20 Amps, otherwise the inverter would burn up before the breaker trips).

At this point, only one electrical outlet and a small overhead incandescent is attached in the barn.  I will be putting a more permanent pair of fluorescents in the roof this weekend (four 32W energy saver bulbs = 120W).

As I also pointed out, there are lights in the other shed and a yard light.  The yard light uses about 300W but it's on a timer and a daylight sensor and only on when the switch is turned on.  That plus the other bulb add up to about 400W.

So if I've done my math right, the battery system can provide power to the all of these lights for about 7 hours.  If we need them all on for an hour or so every day while doing chores, then about a week can go by without a wind to provide a recharge.  That may or may not be cutting it close.

If it's not enough, I'll probably find out in December.  If it is enough to make the system work, then I won't be sure until April.

Thanks for the inspiration, everyone!

Steven Fahey
[ Parent ]



Re: Lights on in the Barn (3.00 / 0) (#3)
by wpowokal on Wed Sep 24th, 2008 at 01:32:33 AM MST
(User Info)

The inner glow from that picture of the lights has to be experienced to be appreciated, well done Steve.

allan down under
A life lived in fear is a life half lived.



Re: Lights on in the Barn (3.00 / 0) (#4)
by David HK on Wed Sep 24th, 2008 at 03:59:51 AM MST
(User Info)

Well done. Excellent inspiration.

David HK



Re: Lights on in the Barn (3.00 / 0) (#5)
by luv2weld (luv2weld at hughes dot net) on Wed Sep 24th, 2008 at 07:18:46 AM MST
(User Info)

Great work!!
And great pictures too. Thanks for sharing it with us.

Ralph

"The best way to kill time is to work it to death!!"



Re: Lights on in the Barn (3.00 / 0) (#7)
by richhagen (richhagen (a t) Juno.com) on Wed Sep 24th, 2008 at 10:02:25 PM MST
(User Info)

I didn't think you needed lights at night with the well installers and such about.  Seriously though, it looks great, and for the next few weeks you will probably find yourself wandering out to the barn periodically just to turn on the lights to and marvel at your handiwork.  Rich
'A Joule saved is a Joule made'


Re: Lights on in the Barn (3.00 / 0) (#8)
by SparWeb (sparweb at ANTISPAM_hotmail_com) on Thu Sep 25th, 2008 at 11:25:45 AM MST
(User Info)

Rich, thanks.  The well drillers just did their flaring business.  I should have asked them to tank that up for my personal use instead!

Every evening, my wife comes back from doing chores, with a smile and a "thank you" for me.

Talk about brownie points!  ;^)
Steven Fahey



Re: Lights on in the Barn (3.00 / 0) (#10)
by Airstream on Thu Sep 25th, 2008 at 01:02:16 PM MST
(User Info)

My guess is it will really come in handy once some thawing occurs so one dosen't have to memorize every icy rut, hoof print and black ice puddle...

A week without wind in Calgary? My guess is it would be -40 with no clouds to provide insulation - the very best time to run solar PV panels to get a 30% boost from tested ratings...

Thanks for the tour, good post!



Lights on in the Barn | 10 comments (10 topical, 0 editorial)
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