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RegGuheert
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INVELOX: A Wind-energy solution I can fully support

Sat Jun 20, 2015 4:36 am

INVELOX (stands for INcreased VELOcity) is a new approach to harvesting wind energy developed by a company in Minnesota called SheerEnergy. It eliminates most of the drawbacks of the current breed of wind turbines while improving both performance and utility.



This technology was recently chosen to provide electricity on a remote island in the South Pacific at a bird sanctuary:
SheerWind wrote:Because Palmyra is home to more than a million nesting seabirds, conventional wind turbines were not an option due to the risk the of bird strikes.
SheerWind wrote:The Conservancy turned to the Minnesota firm SheerWind, which came up with a prototype design resembling an hourglass turned on its side. Extending 83 feet horizontally with big wind scoops at either end, the design uses a Venturi system that increases wind speed three to six times, with nets over the intake and enclosed blades that keep it bird friendly.

Image
RegGuheert
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Enphase Inverter Measured MTBF: M190, M215, M250, S280

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RegGuheert
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Re: INVELOX: A Wind-energy solution I can fully support

Sat Jun 20, 2015 4:53 am

OTOH, here is an extremely negative review of the technology at CleanTechnica:
CleanTechnica wrote:Sheerwind makes radically inappropriate comparisons between their long-disproven approach to wind generation and actually useful wind generation. The numbers show that they are likely about eighteen times worse at generating electricity from moving air than a truly equivalent wind turbine would be, and will require an order of magnitude more material to achieve that.
RegGuheert
2011 Leaf SL Demo vehicle
10K miles: Apr 14, 2013, 20K miles (55.7Ah): Aug 7, 2014, 30K miles (52.0Ah): Dec 30, 2015, 40K miles (49.8Ah): Feb 8, 2017, 50K miles (47.2Ah): Dec 7, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

DaveinOlyWA
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Re: INVELOX: A Wind-energy solution I can fully support

Sat Jun 20, 2015 8:36 am

RegGuheert wrote:INVELOX (stands for INcreased VELOcity) is a new approach to harvesting wind energy developed by a company in Minnesota called SheerEnergy. It eliminates most of the drawbacks of the current breed of wind turbines while improving both performance and utility.



This technology was recently chosen to provide electricity on a remote island in the South Pacific at a bird sanctuary:
SheerWind wrote:Because Palmyra is home to more than a million nesting seabirds, conventional wind turbines were not an option due to the risk the of bird strikes.
SheerWind wrote:The Conservancy turned to the Minnesota firm SheerWind, which came up with a prototype design resembling an hourglass turned on its side. Extending 83 feet horizontally with big wind scoops at either end, the design uses a Venturi system that increases wind speed three to six times, with nets over the intake and enclosed blades that keep it bird friendly.

Image



interesting concept but I have doubts. the first picture is taking wind from on high and funneling it downwards which means it must overcome convention forces in warmer climates. the 2nd picture is obviously more effective with wind in a specific direction only.
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desiv
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Re: INVELOX: A Wind-energy solution I can fully support

Sat Jun 20, 2015 8:41 am

Well, if it's considerably less efficient than standard turbines, but doesn't kill birds, it still might be a good choice for a wind energy solution at a bird sanctuary.. ;-)

desiv
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DaveinOlyWA
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Re: INVELOX: A Wind-energy solution I can fully support

Sat Jun 20, 2015 9:41 am

sure I think its a best choice for specific applications. We get too centered on only supporting the "best option" when there are simply too many variables out there. Stand alone wind towers have a lot of drawbacks as well so there is no perfect solution or the near term possibility of one. So why not try it?
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RegGuheert
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Re: INVELOX: A Wind-energy solution I can fully support

Sat Jun 20, 2015 9:50 am

I'm thinking integration of something like this in buildings within a city might be interesting. I know a couple of skyscrapers have incorporated ducted fans, but this could accept wind from any direction. I think this might make sense in urban landscapes which don't even have overly-tall buildings.
RegGuheert
2011 Leaf SL Demo vehicle
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DaveinOlyWA
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Re: INVELOX: A Wind-energy solution I can fully support

Sat Jun 20, 2015 9:56 am

RegGuheert wrote:I'm thinking integration of something like this in buildings within a city might be interesting. I know a couple of skyscrapers have incorporated ducted fans, but this could accept wind from any direction. I think this might make sense in urban landscapes which don't even have overly-tall buildings.


very true and the claims of effective power generation at 2 mph windspeed (if true) makes location issues non existent. sure its not the best option but in congested urban areas, it might be the ONLY option especially if this design can be scaled down. now how much it will produce is always a question but I think we are coming to a point where we need to get it anywhere we can.

off topic comment; It is amazing to me that desalinization has not received a lot more energy. it is pretty much an inevitable conclusion that that is where we will end up
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 (build 10/2016)"low water marks" 27,000 miles.363GID Ahr 79.13Hx95.17%kwh28.1QCs238,L2's 251
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kikngas
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Re: INVELOX: A Wind-energy solution I can fully support

Sun Jun 28, 2015 5:45 pm

The company claims the towers can be much shorter, and the ease of not having the generator 150ft off the ground bring a lot of cost savings. Also, because of the extremely low cut-in speed, it produces several fold more energy than a standard turbine. Largely because there are so many more hours per day that it is generating. I've been watching this company for years. Curious why it has not achieved more installs and validated results and had an IPO.

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paulgipe
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Re: INVELOX: A Wind-energy solution I can fully support

Mon Jun 29, 2015 3:53 pm

I am afraid there's no evidence that this will work, or that it will work as advertised. There's is zero data on performance measured to international standards--their claims to the contrary.

Why this "device" is so embarrassing is that they're claiming to soak up 1.2 million from the Nature Conservancy which could use the money elsewhere for a good purpose. When this "product" fails--should it ever operate at all--some heads will roll--or at least they should.

1.2 million would buy a lot of solar panels--or a decent wind turbine for that matter.

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RegGuheert
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Re: INVELOX: A Wind-energy solution I can fully support

Tue Jun 30, 2015 10:10 am

paulgipe wrote:Why this "device" is so embarrassing is that they're claiming to soak up 1.2 million from the Nature Conservancy which could use the money elsewhere for a good purpose.
It appears you have misread the press release:
The Nature Conservancy has completed a $1.2 million renewable energy project, installing solar and wind systems that will almost eliminate the use of fossil fuels at Palmyra Atoll.
paulgipe wrote:1.2 million would buy a lot of solar panels...
In fact, it did! 385 of them:
The six-week project saw Conservancy staff and a crew of 30 volunteers install 385 solar panels, a solar hot water system, a deep-cycle battery system to store sunlight for use at night, and a prototype bird-friendly wind turbine — all of it creating a custom 100kW solar micro-grid.
paulgipe wrote:...--or a decent wind turbine for that matter.
By "decent", I'm guessing you are referring to the type which would kill some of the birds which the Nature Conservancy is designed to protect. No, that was not an option for this application:
Because Palmyra is home to more than a million nesting seabirds, conventional wind turbines were not an option due to the risk the of bird strikes.
RegGuheert
2011 Leaf SL Demo vehicle
10K miles: Apr 14, 2013, 20K miles (55.7Ah): Aug 7, 2014, 30K miles (52.0Ah): Dec 30, 2015, 40K miles (49.8Ah): Feb 8, 2017, 50K miles (47.2Ah): Dec 7, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

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