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From: Winston on 15 Jun 2010 00:10
On 6/14/2010 2:45 PM, Michael A. Terrell wrote:
>
> Winston wrote:

(...)

>> Recapping:
>>
>> Steer manure: $4.80 per m^3 of methane.
>> Chopped grass: $0.00 per m^3 of methane.
>>
>> Seems like chopped grass is less expensive.
>
>
> The manure is all in one place.

Michael, I agree.

> How many homes have a ton of grass
> clippings by the street?

That was just an apples-apples comparison. You can make meaningful
quantities of methane with surprisingly little raw material.
With a digester using ensilaged grass, water makes up ~92 percent
of the raw material. This is a great way to use the 'roof runoff'
you have been storing in your rain barrels.

> The manure would be loaded with a front end
> loader, taking a couple minutes.

You would need nearly 8 x as much manure to equal the output
of a given amount of ensilaged grass, so that is a non-
starter anyway, unless you could get it free and
someone who *paid you* to transport it to your site.

Here is an article about that from TMEN in 1974:
http://www.motherearthnews.com/Renewable-Energy/1974-01-01/Mothers-Methane-Maker-Past-Present-and-Future.aspx

> How long would it take you to load all
> the grass clippings?

Say 10 minutes tops, including walking time.
My trusty wheelbarrow and square nose shovel
would make quick work of that.

> Some towns have laws against picking you anything
> left for their trucks.

My town has a law against removing items placed in a
recycling cart. I checked just now.

Grass clippings left in the street are in a legal
'gray area', particularly when they are deposited
more than a day before the designated pickup time
or any time after the pick up has occurred.
There are normally piles on my block that sit
for several days, for example. Nobody has been
arrested, so far.

We also have laws against medical fraud and
practicing medicine without a license.
Those aren't investigated, either. :)

Sometimes I re-purpose stuff that I remove from my
recycling cart. I'm trusting you to keep this
secret, Michael.

I don't have the right tie for a 'perp walk'.

> How many tickets do you want to pay?

None. You?

--Winston

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