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Old 08-13-13, 08:52 PM   #1
Join Date: Sep 2008
Location: SE Wisconsin
Posts: 546
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Default Solar Swing-Set

A Solar-powered Swing-Set!?!?

Wow, Ben, you really are a crazy eco-nut, aren’t you!

OK, so the solar panel doesn’t actually power the swing… Rather, this entire project is a photo-voltaic ground mount, cleverly suburban camoflaged as a children’s backyard play-set.

You may remember that I has a good experience running solar PV to my electric motorcycle at the MREA Fair. That, in turn, lead me to purchase a solar panel from Helios, a local “Made in America” solar manufacturing company in Milwaukee, Wisconsin.

I quickly pointed the panel south and started charging my Citicar with it. However, it was on literally the quickest and cheapest ground-mount I could come up with. I simply bolted three pieces of aluminum channel to the back of the panel, and leaned it up against three stakes I pounded into the ground. Couldn’t be simpler! Of course it also couldn’t be any more ugly or flimsy either!

So, I started thinking about what it would take to build a REAL ground mount. Of course I would want something solid, maybe pressure treated 4×4 posts? Elevating it wouldn’t hurt either. A few feet at a minimum, to keep the snow off in winter, but even higher would be good to avoid shading at certain times of year. By then, I was thinking about how children’s outdoor play-sets are constructed. Many of those even have a roof. People mount solar on roofs all the time. Wait a minute…..

If I simply bought a used play-set, I could mount the solar panel right to the roof AND have a swing and slide for my little girl!

I hit Craigslist and started looking around. Wow, used play-sets cost WAY more than I thought they would. But I did find a few at lower cost, with the expectation that the buyer disassembles and removes it himself. I have tools, a pickup truck and a trailer, so what the heck!

My budget for the project was $150. Why? Because I got an argon gas welding tank for free, and I was able to sell that for $150. That’s why. I looked through Craigslist and found a play-set for $150, but that guy never called me back. Instead, I had to shoot for a $200 one. I had an extra $50 squirreled-away from selling some other junk, so I could still make it work.

I shanghi’d my father as my assistant, and we made the hour-long trek to go get the playset. The first thing I realized when I saw it was that it was about TWICE as large as it looked in the photo. Yipes, sure hope I had enough room in the truck.

We got to work disassembling the structure with a battery-operated impact wrench (I thought to ask the guy ahead of time what size bolts it used!) It was definately a two-man job, and by the time we finally had the whole thing apart, carried to the truck and trailer, and lashed down, it was dark. We were both tired and hungry, and it was now 8:30 on a Sunday night. Our stop for cheeseburgers on the way home was more than welcome.

I dropped my Dad off, and made it the rest of the way home in the dark and drizzle of rain, hoping to avoid hitting any deer.

The next day, I spent setting the whole thing back up in my yard. That meant moving everything else out of the way and laying out all the components as a real-world exploded diagram. How could this thing possibly have this many parts? And where was the Ikea manual that should have come with it?

I started laying it out and assembling the pieces, first doing things that I knew where they went. Like a crossword puzzle or sudoku, it gets easier as you go. Once some parts are filled in, it makes it easier to figure out where the others fit.

By the end of the day, I had most of the plays-set assembled, minus the roof.

Today, I leveled the entire structure on scrap blocks of wood, using a prybar, a 2×4, and my car jack. Once everything was more or less plumb, square, and level (I usually like to say “Pick Two!”) I was ready to put on the roofs.

Too bad I didn’t have anyone around to lend me a hand with it. About an hour later, a cut hand, a kink in my neck, and a minor bout of cursing, I had the roofs installed. A quick trip to the hardware store got me a few nuts and bolts that broke during the original disassembly or went missing while bouncing down the road Sunday night.

Wow, at this point, I pretty much had the whole thing together. The little girl liked the new swing, and especially the climbing wall.

Now I have to figure out how to mount the solar panel. My Dad (a remodeler by trade) stopped by, and we took a look at the uneven roof-line and the PV panel. After kicking around a few ideas for a bit, we came up with a game-plan of using the aluminum I already have bolted to the panel, adding some blocking to the roof of the play-set, and adding a couple of attachment points on the far side of the roof ridge.

But THAT’S for the next installment of this story. For now, I’m just happy that my little girl has a place to swing. But I’ll be even happier when I’m producing 400 watts.

Ever hear the term NIMBY? It means “Not In My Backyard”! It’s what most people say to a new coal or nuclear power plant. Guess I’m just the opposite. Give me some nice, clean, renewable energy, and I’ll say YES! IN MY BACKYARD for sure!

Keep charged up!~



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The Following 3 Users Say Thank You to bennelson For This Useful Post:
ecoprincess (08-30-13), NeilBlanchard (08-18-13), Piwoslaw (08-14-13)

photovoltaic, playground, solar, swing

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