Showing posts with label axis. Show all posts
Showing posts with label axis. Show all posts

Tuesday, September 18, 2007

The only Mariah I can stand...

Sleek vertical axis small wind...is there anything sexier?

At 30 feet tall and 2 feet wide, and only $4000 - I don't think so.

Nevada based company Mariah Power has developed the Windspire, the smallest behemoth (huh?) I've ever seen. With numerous applications, residential/small business/kinetic sculpture, I still can't get over the shape. It's pretty.

See for yourself...

If that doesn't get your eco-blood moving, try this...

Kind of like your looking up nature's skirt.

Anywhoo...I've exclaimed my love for vertical axis technology before, but this Savonius design actually knocked the patchouli right out of me. It's mounted on a cement foundation so you don't need to secure it to the ground with hundreds of guy wires, and you can even plug it directly into your house because it doesn't need to be hardwired (a plus for any affluent renter!).

From their website:

Mariah Power’s patented technology includes a rotor, generator, and inverter designed as a complete system to optimize the conversion of wind energy into electricity. The 1kW (1 kilowatt, or 1,000 watts) Windspire will produce approximately 1900* kilowatt hours per year in 12 mile per hour average winds. The Windspire also includes an internal wireless modem that can continuously transmit power production information directly to your computer so you can check your power production at any time.

The rotor is a Modified Savonius design. Our high efficiency rotor was...combined with an innovative high-strength yet cost-effective construction, using a steel frame with low cost insertable plastic panels. The extruded plastic panels come on rolls and are simply inserted into the rotor frame. These breakthroughs in design and construction provide high efficiency with low cost and an extremely safe blade-free design.

Don't know if you have wind? Check out their wind maps.

Have 8 mph breezes? That's enough to start generating energy.

Worried about too much wind? No problem...it's rated up to 100 mph gusts.

I love it that there are so many new prototypes hitting the market. I can't figure out which I like more. Is a vertical axis turbine sexier when it's laying on its back?

What about on the road?

THREESOME!!!!!!

I need a clove.

Wednesday, August 15, 2007

When it works, it blows...

Wind-generated turbine technology has come a long way since the days of yore (sorry, I'm fascinated with the word "yore").

The last two decades have seen numerous advances in tech design, increased turbine size and manufacturing improvements...all of which have reduced the cost of wind power during the last 20 years to just 3 to 7 cents (on average) per kilowatt hour for utility-scale project sites. Turbines have even moved to the sea, generating energy from the waves and tides.


While that information sounds nifty (sorry about "nifty," too), those turbines have nothing on their vertical axis brethren. Take the windmill pictured above, flip it on its back, wrap two blades around each other, and let it rip. Something just got a whole lot sexier.

"Small wind" is the new big oil (only it doesn't use its powers for evil).

So why is the spiral blade design effective, given its smaller stature and relative efficiency?

First and foremost, they're like Cheney on a pheasant hunt...they don't need to aim at anything! With the rotor shaft running vertically and the spiral blades seizing wind form every direction, they can be mounted virtually anywhere. Check out the numerous applications offered by companies like Windside.



Pictured below: The closely-related Savonius Wind Turbine.


Still not sexy enough for you? Try the old-tech Darrieus wind turbine. Patented in 1927, these "giromills" have been around for quite a while, but continue to thrive in areas where the wind is consistently strong. The problem is, they basically need to be push started to get them going.

[Click on pic for larger]

Still not sexy enough? You little wind energy pervert.

Try award-winning hybrid Quietrevolution on for size.


Founded in 2000 by Robert Webb and Richard Cochrane, Quietrevolution is making the world take notice. They're taking a century old technology and morphing its DNA into an efficient, productive little energy machine.

So why vertical? You sure do ask a lot of questions.

Vertical axis wind technology has numerous advantages. Point-free directional capabilities not included, these units have their generators and gearboxes at ground-level, allowing acrophobic service staff to rest easy. And due to their compact design, models like the Quietrevolution QR5 can also be placed close to buildings and on top of towers.

Cost? The £25,000 sticker takes only 15 years to pay for itself.

Too much for your rooftop? Take it to tax dollars.

Why not line the center dividers of the freeway with thousands of these guys? Use the gas we guzzle to power our own greedy selves?

You know what it's like to almost be blown off the freeway by an 18 wheeler, so you know the power is there.

Still not enough? Time for craziness.

Take the whole vertical axis turbine concept and stick it on magnets (thanks, China).


Yep...magnets. Why not.

Maglev, a loudly lauded company with a now-defunct website (largely in part due to heavy Digging), is trying take friction out of the equation by borrowing from the high-speed train industry. The turbines are now floating.

Similar claims from other companies are heavily saturated in "could be" sponge water, but the concept itself makes want to open up my Hover Rink Rollerama.

Househacker has the best analysis on the claims I've seen thus far . Check out their updated analysis for a whole bunch of numbers/statistic talk I'll never understand.

Craziness.