I've heard that the NC grease gobbling public can be penciled in for
between one and three gallons of yellow grease per year--which does not
conform to Phillip's numbers. This from a grease collector.
And while Rob is right, we are not the only ones laying claim to wvo,
my guess is that most of it still goes down the drain.
I'm thinking there is a disconnect between the amount consumed and the
amount collected, and I say this from various conversations with
municipalities that are constantly battling wvo in their waste streams.
On Jan 7, 2005, at 8:26 PM, R Del Bueno wrote:
Keep in mind this yellow grease is not waste (perhaps to the
restaurant it is).
It is a tradable commodity primarily used by the rendering and feed
industry.
The value of this "waste" is demonstrated by its trading value
currently around 16.5 cents per pound ..translating into over
$1.20/gallon (granted this is with a certain amount of pre-treatment).
The price will probably only go up as the biofuel industry raises
demand (which of course will upset feed producers quite a bit), and
competes with the rendering industry.
Another demonstration of the value are the incidents of grease theft,
and subsequent prosecution.
So while there may be a fair amount out there, most of it is being
traded as we speak.
I do not think it will be long before producers (restaurants) begin to
realize that this waste stream could become a revenue stream. For
many, it already has. I know several nicer restaurants (whose waste
oils are fairly clean, due to frequent fryer clean outs) who are
getting paid for the oils. Many of these are also in long term
contracts.
Not that these restaurants could not be persuaded to work with you, if
you show them a higher value use, but often the bottom line takes it.
Currently there is much of this feedstock available, but be careful
not to rely to heavily on its current availability/price when building
your business model.
Also keep in mind costs of collection with regard to such a
distributed supply.
Poultry fat, in Georgia, had panned out to be a more cost effective
feedstock, due to its qty, and the fact that it is more centralized,
and hence the costs of collection (per pound) are much cheaper. Of
course, this is a function of the large amount of poultry production
in Georgia, and will not apply everywhere.
Currently poultry fat in the area seems to trade about 1 or 2 cents
per pound below yellow grease... which can certainly add up.
This is also a function of scale too, and may not be the case based on
scale, and bio-facility as well.
The feasibility study I mentioned in another thread shows a pretty
nice study of the distribution/availability/and price of various
feedstocks in GA.
Here again, won't apply in the same way elsewhere, but interesting to
show the relationships anyway.
Check it out, the feedstock sections are interesting in this regard.
http://www.agecon.uga.edu/~caed/biodieselrpt.pdf
-Rob
At 07:53 PM 1/7/2005, you wrote:
Dear Randal, In the U.S.? > I've been thinking the
same think lately as I survey California cities. Some
interesting consistencies.
In 1998, the NREL folks put out an interesting study.
Here's what they have to say:
"The amount of yellow grease feedstock collected from
restaurants ranged from about: 3 to 21 lbs/yr/person,
or about 2,000 to 13,000 pounds/year/restaurant for
the metro areas sampled in this study..."
"...The number of restaurants in most of the 30 metro
areas studied is quite consistent, at about 1.4
restaurants per 1,000 people. Cultural and dietary
preferences greatly affect the amount of grease used
in cooking. The amount of grease discarded from
certain fast food restaurants is especially high.
Despite significant local variations among
neighborhoods' grease outputs, when entire metro areas
are considered the quantities of grease are reasonably
consistent on a per capita (and a per restaurant)
basis.
The amount of yellow grease feedstock collected from
restaurants ranged from about 3 to 21
pounds/year/person, or about 2,000 to 13,000
pounds/year/restaurant for the
metropolitan areas sampled in this study. Many
rendering companies refused to provide
data, so factored estimates were used in many of the
cities. The combined resource of
collected grease trap waste and uncollected grease
entering sewage treatment plants ranged
from about 2 to 27 pounds/year/person, or about 800 to
17,000 pounds/year/restaurant.
Thus, a metropolitan area the size of Washington, DC
(which includes suburban Maryland
and Northern Virginia) generates about 39,000,000
pounds/year of yellow grease
feedstock and about 50,000,000 pounds/year of grease
trap waste." (WOW THATS A LOT OF BIODIESEL!!!)
http://www.nrel.gov/docs/fy99osti/
26141.pdf#search='study%20of%20waste%20grease%20production%20in%20rest
aurants'
************
Those NREL people do some good work and glad to pay my
taxes to fund these folks.
Hope this helps.
Phillip Wolfe
--- [EMAIL PROTECTED] wrote:
>
>
> Has anyone estimat= ed total WVO volume at any
> scale? In the < st1:place>U.S.= , or in a state.
> Perhaps from the front end taking
> the am= ount produced, how much for fryers,
> figure out per capita,
> then you could e= stimate for your community?
>
>
> I've tried from th= e other end; number of
> restaurants, typical
> volume per week, building= up, to an estimate of
> 50 to 75,000 gallons
> per year for a town of 40,000.&= nbsp;
>
>
> Ideas?
>
>
>
>
>
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