Cancel
Advanced Search
KEYWORDS
CATEGORY
AUTHOR
MONTH

Please click here to take a brief survey

Sand and Sludge: A Day of Green Energy Innovation
Alex Aylett, 24 Feb 10

The top energy news today is undoubtedly the public unveiling of Bloom Energy's new hydrogen fuel cell.

Eight years in the making (yet unveiled about a week after Bill Gates spoke on the need for energy miracles), the Bloom fuel cell is made out of a sand-based ceramic and can power 100 homes with a unit that fits in a parking spot.

Here are some of the specs:

  • cheap power: 8 to 10 cents per kWh, cheaper than average energy costs in many US states.
  • longevity: each "bloom box" has a project life span of 10 years
  • efficiency: the cell produces electricity from natural gas or biogas with 50 to 55% efficiency. That's about the same as a combined cycle natural gas plant, and well over the 30% efficiency of the coal fired plants that still supply over 50% of US and 23% of Canadian power.
  • compactness: A 100-kilowatt Bloom Energy Server will fit in a parking space. That's enough power for just under 100 homes – depending on local energy use. By comparison, one large wind turbine generates 1000kW, but can't be parked quite as easily.

Green inc.
has good coverage of the promising, but still unproven nature of the Bloom Box.

From Post-Recycled Waste to Ethanol
Less glamorous, but still interesting, is news that Quebec's waste-to-ethanol processor Enerkem has attracted venture funding to the tune of $51.5 million from investors like Huston-based waste giant Waste Management.

Enerkem has perfected a process that transforms post-recycled waste into ethanol. The company has a plant operating in Quebec already, with others in Alberta and Mississippi on the way. The Edmonton plant will create 9.5 million gallons of fuel-grade ethanol.

The Enerkem approach is recycling taken to a fundamental level. One company rep. described is as “recycling the carbon molecules in this garbage."


This piece originally appeared on OpenAlex

Bookmark and Share


Comments

a little bit off topic... has anyone watch the 60 minuts interview 2 nights ago about Bloom Energy?


Posted by: bloom energy stock symbol on 8 Sep 10

Post A Comment

Please note that comments will remain open for only 14 days after the article is posted. While previous comments will remain visible, attempts to post new comments after this period will fail. This helps stop comment spam, so your forebearance is appreciated.

The Worldchanging comments are meant to be used for further exploration and evaluation of the ideas covered in our posts. Please note that, while constructive disagreement is fine, insults and abuse are not, and will result in the comment being deleted and a likely ban from commenting. We will also delete at will and without warning comments we believe are designed to disrupt a conversation rather than contribute to it. In short, we'll kill troll posts.

Finally, please note that comments which simply repost copyrighted works or commercial messages will be summarily deleted.

REMEMBER PERSONAL INFO?
Yes No

NAME


EMAIL ADDRESS


URL


COMMENTS



EMAIL THIS ENTRY TO:

YOUR EMAIL ADDRESS:


MESSAGE (optional):


Search Worldchanging

Worldchanging Newsletter Get good news for a change —
Click here to sign up!


Worldchanging2.0


Website Design by Eben Design | Logo Design by Egg Hosting | Hosted by Amazon AWS | Problems with the site? Send email to tech /at/ worldchanging.com
©2012
Architecture for Humanity - all rights reserved except where otherwise indicated.

Find_us_on_facebook_badge.gif twitter-logo.jpg