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Archive for the renewable energy Category

Indoor, vertical farming has advantages

 We’ve passed a historic milestone with more than 50% of North America living in cities.  That number is expected to grow — some say to 80% or more.

 Here’s a thought: instead of gobbling-up farm land, cutting-down forests, and plowing-up pristine wilderness… why not combine urban renewal with urban farming? Why not use poorly-planned sections of a city, under-performing commericial real estate projects, empty shopping malls and retail storefronts for farming?

Does the idea of a farm in a shopping mall sound silly to you?  This video may change your thinking:

 

I suspect that if we’re shipping fresh California produce across the Pacific Ocean to Japan and elsewhere, and bringing tomatoes in from Mexico and grapes from Chile… there has got to be a pretty good profit margin on organic produce that can be reliably grown year-round near or directly within

  • densely-populated 
  • residential areas
  • downtown and retail centers (with offices and restaurants)
  • airports, railroads, and ocean ports

The recession is hurting shopping malls and the recent string of big-box store closures have blighted otherwise high-traffic areas across America.

One draw-back to urban farming — the creative re-use of retail or warehouse space for farming –is job density. Indoor farming is not very labor-instensive (not like a retail store, anyway).

But a farmer’s market does provide some jobs.  And it could enhance a community, and it could help to revive foot-traffic in an otherwise sluggish strip-mall or shopping district.

So, despite minimal job creation, a suburban farm supplying organic produce to local stores, restaurants, and food services could help to increase the tax base of a community.  And the location might also be used for adult education or recreational gardening classes.

Is there a big empty warehouse or stand-alone building in your town that might make a good indoor farm?  Would you like to turn a portion of your property into a demonstration farm?  Are your solar panels generating more power than you can use?  Please let me know.

 If you’re interested in the latest on this topic, or if you’d like to educate me on this topic, please follow @grownupfoods on Twitter.

Egypt Should Invest in Low-Tech Waste-To-Energy Technology in Cairo

I just heard a radio report on NPR in the Global Health section:

Egypt To Slaughter Pigs As A Flu Precaution by Peter Kenyon    

(http://www.npr.org/templates/story/story.php?storyId=103642533)

The growing Swine Flu epidemic has got a lot of people scared.  But knee-jerk policy decisions can sometimes have dangerous consequences.

In Cairo, where the Muslim population does not eat pork (or even touch pigs), hogs are farmed by the Coptic Christian population, a small minority.  So it’s not a tough political decision for Egypt to simply say “kill all the filthy animals” before Swine Flu breaks out.

‘Problem is… many of these pig-farmers in Cairo are the garbage collectors – they go from house to house and busines-to-business collecting garbage, bringing it back to their homes, separating it, and feeding the food scraps etc. to the hungry hogs.  That’s their livelihood.

Without the hogs, they will certainly not want to bring the garbage back to their homes.  The pig-farmers warn NPR that the garbage will quickly pile-up, and Cairo will be a filthy place (er, even filthier).

But of course, Cairo won’t let that happen, will they?  They’ll burn their trash.  They’ll pile up the trash, pour kerosene on it, and light it up.  Somebody will.  If the government won’t do it, civilians will.

Swine Flu is an immediate public health issue in other countries, and is threatening Egypt.  But Egypt’s reaction is creating a different urgent public health issue in Cairo.  And they may soon export an even bigger environmental issue in the form of pollution and noxious fumes.

Instead of simply burning trash and putting filth into the air, they could use the trash to generate electricity while at the same time getting rid of all kinds of municipal waste.  It’s called Waste-To-Energy (WTE or W2E).

Envirepel™ gasification uses a brick oven design which is not new: it was patented over 100 years ago. They do not burn the trash — they heat the trash to the point that everything melts, all the microbes and disease “bugs” are cooked.  They use the waste heat from the process to generate eletricity.  And they use the gases that come off of the trash to fuel the system and to produce methane, ammonia, and other good stuff.  The “ash” that comes out the other end can be used for making bricks, concrete, roads, roof shingles and other useful products.

Now there’s a good thang!  See http://envirepel.com/

 

Financing Wind Energy Projects

Spirit Lake Community School District's wind turbines, Iowa.In many school cases schools and other public entities have unique opportunities to help finance wind projects because they qualify for low interest loans, can issue bonds, have lower required rates of return, and generally can get longer financing terms.  Pictured [right] are the Spirit Lake Community School District’s 250 kW and 750 kW wind turbines.  The 750 kW wind turbine was financed through a zero interest loan from the Iowa Energy Center’s Alternative Energy Revolving Loan Program and a low interest loan approved by the Iowa Energy Bank.  (Article and photo from the Windustry Community Wind Toolbox)  Photo credit: Iowa Energy Center

Ventura County Now Open to Small Wind Turbines

Among the many “good thangs” I could write about here, I am particulary pleased to report that Ventura County now has its first wind turbine.  And I am tickled to be able to say that my work with Prevailing Wind Power, LLC (PWP) was instrumental in making that first installation happen.Hammond Skystream (Fillmore, CA) Here’s a front page story from the Fillmore Gazette (Fillmore, CA) dated Feb. 11, 2009: http://www.fillmoregazette.com/front-page/farming-wind  Sales for wind turbines are not rolling-in quickly (yet), but I am confident that in the 2009 we’ll see several more turbines installed.For many months, I fielded phone inquiries from residents in Los Angeles, Ventura, and Santa Barbara Counties asking for information about turbines from Southwest WindPower (SWWP).  SWWP is one of the oldest and most popular brands of “Small Wind” turbines, and has tens of thousands of turbines installed worldwide.  Yet, there were no turbines in the local area to which I could point prospective customers.  The closest (to my knowledge) were in the Big Bear / Arrowhead area, over 100 miles away.These “residential” turbines like the SkyStream 3.7 are larger than Air-X turbines common with boats and RVs.  But they are far smaller than thewind turbines that most people associate with Palm Springs or Tehachapi in Southern California or Altamont Pass in Northern California.Concerns over noise or performance or maintenance costs are real and legitimate.  Assuring a prospective buyer that the wind in the trees is louder than a SkyStream, or that ‘we have plenty of wind here’ in California, or that ‘these things last and last’ only goes so far.  For my money, I would want to see/hear for myself.  So, being able to point to a local Skystream unit and an owner that is high-profile and approachable is fantastic.  It’s going to really help sales here in Ventura County, CA.  The SkyStream website has a link for “SkyStreams Near Me” which lets you see if there are any units in your local area.  The new owner, like so many others, is happy to show off their new residential power plant and to tell about the process. Hats-off to the Hammonds for pressing Ventura County, writing letters to local legislators and getting the local media involved.   And hats-off to the Fillmore Gazette for following-up on the issue and getting local legislators “off the dime” and getting the wheelsblades turning.

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