What goes around...
Holden Village is in a rather remote place. How does it get electricity, you ask? Glad you asked that, I happen to have an answer written down. Got it right here next to my heart....The original company town of 1937 was mostly electric: the electricity came uplake from the dam at Chelan Falls. Heat for the buildings came from diesel, but the rest was electric. Even the Hotel Dining Room kitchen was all electric up until 1989.
The power lines were taken out, were salvaged when the mine shut down. Most of the other easily removed metal was also taken for salvage; but that is fodder for another post. When the village became the Village in the early 1960s, the only electrical power came from diesel generators: noisy, stinky, expensive diesel generators. So the Village got a hydroelectric system dating to the 1920s - about 40 years old at that time. The heart of the hydro is a Pelton wheel, or in this case, two wheels. Each wheel is has a series of double cups mounted to the rim. And here the two wheels have different diameters, and make differing amounts of power depending on the season and demand. They run at about 600 RPM, and that is where the 60 hz (cycles per second) of alternating current.
The water that drives the turbine comes out of Copper Basin - the iconic hanging valley between Buckskin and Copper directly south of the village. A diversion structure drops some of the water into a collection box which has a couple chambers to let the sand and gravel settle out. A pipe goes about a quarter mile (400 meters) down hill to the hydro plant - but the elevation drops about 600 some feet over that distance. So - a column of water about the height of the Space Needle in Seattle gets squeezed through a needle valve (kind of like a brass hose nozzle) and hits the double cups and spins the wheel.
But the settling chamber don't settle all the sand, and over time the cups on the Pelton wheel get, well, sandblasted; and have to be replaced. In one case, the worn wheel became garden art, at the SE corner of the Hotel.
Pelton Wheel, SE Hotel Garden |
One day in late spring, the snow is gone and the plant is shooting up. Next thing you know, there are flower buds swelling out. And then another day you walk by, and the buds have blossomed and there are at least five different kinds of bumble bees buzzing in the lavender bush, and about a thousand of those beautiful little coppery bronze butterflies with wings about the size of your fingernail. They are so very quick - and then so very still...
Three Kinds Of Lavender? Maybe Only Two... |
I guess I misled you - I said there would be three views of a Pelton wheel. But this last picture, fuzzy as it is, and taken in pretty low light with my phone, does not have the wheel in it. Guess you are going to have to click on that link to the Pelton wheel reference at Wikipedia if you want a third view. Or keep coming back - I am sure something else will catch our attention around or about that wheel. And it will show up again.
If you got the reference to something kept next to my heart, I've got a car for you. Call BR-549.
And with apologies to Hokusai -
Peace and balance,
Matt