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Zenn raises $8.2M as it takes bigger stake in EEStor

post #1 of 4
7/17/09 at 6:20am
Thread Starter 
Latest news on Zenn as it ups it's stake in EEStor to 10.7%

http://cleantech.com/news/4707/zenn-raises-82m-bigger-stake-stealt

 
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post #2 of 4
7/17/09 at 12:11pm
Thread Starter 
 For those who may be interested The Oil Drum has an article about EEStor's EESU (Electrical Energy Storage Unit). 

Stated specs are as follow:
  • 52.22 kW-h of energy storage, or 188 MJ
  • Weight of 281.56 lbs, or 127.71 kg
  • 31,351 capacitors stacked and connected up in parallel, each with dielectric layers of 9.732 micron thickness
  • Each capacitor layer consists of alumina-coated composition-modified barium titanate (BaTiO3) powder sandwiched between two thin poly(ethelene terepthalate) layers and aluminum electrodes. The BaTiO3has relative permittivity (dielectric constant) of 21,072 and the overall dielectric permittivity (including PET layers and alumina coating) is 18,543.
  • Total capacitance of 30.693 Farads, and total volume of 2.628 cubic feet.
  • Temperature stable to 85°C and voltage stable to 5000 V, with 0.1% discharge over 30 days
  • One million recharge cycles from 0-3500 volts and back again
  • Can be charged in 3-6 minutes
  • Manufactured by screen printing and sintering

http://www.theoildrum.com/node/5557 
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post #3 of 4
7/17/09 at 2:41pm
Hmm I'm not sure exactly what to make of this.
Quote:


"The company's ability to maximize its investment in EEStor is a result of certain EEStor shareholders not exercising their follow-on investment rights. These investors had also elected not to participate at the time of [Zenn's] initial EEStor investment in April 2007," the release said.


On the one hand, apparently ZENN is very confident in EEStor's future.  On the other hand, apparently some of the company's other shareholders aren't.
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post #4 of 4
7/17/09 at 2:44pm
Quote:
Originally Posted by dana1981 View Post

On the one hand, apparently ZENN is very confident in EEStor's future.  On the other hand, apparently some of the company's other shareholders aren't.

Yeah, I have to admit I'm a little nervous for ZENN. They seem to have so much faith but they have so much to lose too if EEStor doesn't hack it. I obviously hope they will because that'd be great! But....not a good sign if some of the other investors are getting cold feet.
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