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Mary Barrows wrote:
--
X-No-Archive: Yes
>Fight deregulation. Bills doubled in SDCA because of it. Call your
>representatives and rally fellow citizens. Regulation is necessary to
>protect us from the greedy.
Where's our distributed generation guy when you need him?
International Fuel Cells is working on a residental power and heat
generating fuel cell. Really interesting concept... they didn't have
any prices yet for the home unit (estimated availability 2002), but
they've done a LOT of commercial installations.
http://www.internationalfuelcells.com/
Just out of curiosity, I plugged in my residental rates to one of
their commercial fuel cell break-even calculators and figured out that
it would pay for itself in under four years.
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Jeff N
Sent via Deja.com http://www.deja.com/
Before you buy.
>And your bird-dog fee is what?
I'm NOT a fuel-cell salesman, if that's what you want to know. I don't
even have any United Technologies stock... I just thought it was a
fascinating idea.
I'd be more likely to shill for photovoltaic sources... although the
ones I deal with are on space vehicles. (Some of them, such as the
Shuttle, do use fuel cells.)
If true, do me a favor. Which company has found all the nat gas
to power the fuel cells and which company has the capability to
distribute the gas?
If the big money during the Gold Rush was made selling Levi's,
the big money on fuel cells will be made distributing and selling
the gas.
Tom Beckner
>If the big money during the Gold Rush was made selling Levi's,
>the big money on fuel cells will be made distributing and selling
>the gas.
Many urban areas already have most of the the infrastructure. It'll
only be an increase in volume (more year round, as many of the current
fuel cells also make heat for winter quite nicely).
>If true, do me a favor. Which company has found all the nat gas
>to power the fuel cells and which company has the capability to
>distribute the gas?
>If the big money during the Gold Rush was made selling Levi's,
>the big money on fuel cells will be made distributing and selling
>the gas.
depends greatly on the efficiency. If the home based cells are as, or
more, efficient than a central power plant, then the switchover will
actually save natural gas. (Yes, I know that on a national basis natural
gas only fires a small portion of power plants, but in areas like the
Northeast it's much higher).
--
_____________________________________________________
Knowledge may be power, but communications is the key
dan...@panix.com
[to foil spammers, my address has been double rot-13 encoded]
OK, it's interesting. How much to retrofit a sufficient number of
dwellings to obviate the need for some form of
transmission/distribution system? Entirely new subdivisions would be a
good place to start, but what about the liability of all those
individual "power plants", who'll cover the maintenance, what happens
if the plant shuts down and your house is black? How long will the
wait for the repairman be?
The big utilities will fight it, obviously. But what about all those
municipalities (of which I'm a none too happy customer) which see
running an electric utility as a cash cow? Will these entities modify
zoning codes to allow what could be considered an industrial facility
to be built in a residential area? We're talking lawyers here. And
lots of money.
Initially, a fuel cell here and there might run in-parallel with
the utility, using the grid for back-up. A new subdivision might
have it's own micro-grid that allows any individual out-of-service
plant to be backed-up by others in the neighborhood. And there's
probably any number of entities that wouldn't mind making a
business out of providing service.
>
> The big utilities will fight it, obviously. But what about all those
> municipalities (of which I'm a none too happy customer) which see
> running an electric utility as a cash cow? Will these entities modify
> zoning codes to allow what could be considered an industrial facility
> to be built in a residential area? We're talking lawyers here. And
> lots of money.
>
> Jeff N
>
Many utilities are definitely fighting distributed generation (see
http://www.eren.doe.gov/distributedpower/barriersreport/), however,
there are also some that seem to be embracing it (see
http://www.enn.com/news/enn-stories/2000/08/08252000/newsbytes_30858.asp
). Maybe some are just more progressive thinkers than others?
Re: Zoning codes - the DoE is coordinating fuel cell codes and
standards to insure these don't become another barrier to the
widespread use of fuel cells.
As an outsider in the UK, I am surprised at your view on deregulation in
the famous "free market" of the US. As I understand, deregulation has
lead to considerable innovation in the UK. personally, I am interested
in CHP (sorry, you call it Co-gen), an impossible concept 10 years ago
because of the regulatory system.
With regard to fuel cells, National Power announced last week the
building of a fuel cell power station next to an existing gas station. I
think about a £30,000,000 project. Not huge, but a start.
--
Robert
Fundamentalist opposed to witchcraft
>Re: Zoning codes - the DoE is coordinating fuel cell codes and
>standards to insure these don't become another barrier to the
>widespread use of fuel cells.
FWIW: I am not a fuel cell salesman, but I've read the literature.
IFC says that one of their design parameters is to have it no louder
than an outside air conditioner. Also, in a lot of places, fuel cells
are exempt from the permitting process (very low pollution levels).
FWIW: I am not a fuel cell salesman either, but I have installed
a few and have operated one for 8 years. IFC/ONSI's PC25 is
relatively quiet (just your typical fan noise) and they are
exempt from air permitting in CA, MA and maybe some others.
Other kinds of permits may be required.
> FWIW: I am not a fuel cell salesman either, but I have
installed
> a few and have operated one for 8 years. IFC/ONSI's PC25 is
> relatively quiet (just your typical fan noise) and they are
> exempt from air permitting in CA, MA and maybe some others.
> Other kinds of permits may be required.
Is there some way to quantify the efficiency of these convertors?
For example, x btu's gas input = y btu's electric output?
Tom Beckner
There's also 700,000 Btuh of Recoverable Thermal
available, produced at an efficiency of 41%
If you can use all of that thermal, your combined
fuel utilization efficiency is 81% LHV
> If you can use all of that thermal, your combined
> fuel utilization efficiency is 81% LHV
Then it boils down to prudent shopping, $ / btu.
In your application, are you using the convertor for flexibility
or other?
How will your use be affected by current escalating nat gas
prices?
Thanks,
Tom Beckner
> How will your use be affected by current escalating nat gas
> prices?
>
It all comes down to what we call the "spark gap" - the spread
between the cost of gas and electricity. Gas prices are up,
but fortunately, thanks to deregulation, the hospital's
electric rates have gone up more (30%). Btw, higher gas
prices are partly offset by the fact that it makes your
thermal energy worth more (assuming you would have used
natural gas to make it).
I would venture to say that the spark gap in most parts of
the country lets you make your own electricity for less than
what you can buy it for . . . it's just a question of 'how
much less'. That's what determines your payback period,
and whether or not you get an acceptable ROR on your power
plant investment.
> Thanks,
>
> Tom Beckner
It would be hard to make electricity cheaper than you can buy it in some
parts of the county. In KY, for example, the average residential rate for
electricity is between 4 and 5 cents per kWh. It is very hard to make
electricity cheap enough to come out ahead once you have to pay for the
generating equipment.
About your fuel cell at the hospital, what is the ballpark installed cost?
size (kW)? What is the expected life of the reformer? How much waste heat
is produced to heat water (BTU)?
Thanks
Charles Perry P.E.
> It all comes down to what we call the "spark gap" - the spread
> between the cost of gas and electricity. Gas prices are up,
> but fortunately, thanks to deregulation, the hospital's
> electric rates have gone up more (30%).
Ok, if I have it right, you've got a uniform heat load to utilize
the thermal output and that leaves a uniform electric power
supply that you leverage (dollar wise) by reducing the demand
side of your electric bill.
Can you share the formula you use for calculating your "spark
gap" and monitoring the spread?
Thanks,
Tom Beckner
How does the difference between your rate as a customer (an average of
your utilities various purchases) and the rate you are paid to
co-generate
(which is the avoided cost of the highest price your utility purchases)?
What is deregulation going to do to co-generation installations? In a
truly
deregulated market, generators sell directly to customers with the
distribution utility handling the maintenance, bookkeeping, etc. for
a fee. How will these people connect with customers in the market and
what will their prices look like?
--
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There was a man who entered a local paper's pun contest. He sent in ten
different puns, in the hope that at least one of the puns would win.
Unfortunately, no pun in ten did.
We also track the number of Btu's we recover to make hot water,
and use the hospital's boiler efficiency to calculate their
avoided gas consumption.
From these gross savings we subtract the cost of the gas used
by the fuel cell to get the hospital's net savings.
Obviously, that's just the energy side - we still have to
subtract maintenance costs and ultimately overhaul costs to
get the full life-cycle costs for a power plant we expect to
last 20 years.
This is a 200kW power plant that has an electric efficiency
of 40%, so you would have to give me your commercial gas and
electric rates for me to tell if you can make your own
electricity cheaper. Even if the electricity came out
to be more expensive you could still come out ahead if
you include the free thermal energy you get. I don't
deny that you have to come out WAY ahead to get a decent
payback on something as expensive as a fuel cell. We're
still trying to find that magic commercialization strategy
that leads to volume production and cost reduction.
>
> About your fuel cell at the hospital, what is the ballpark installed
cost?
$850k
> size (kW)? What is the expected life of the reformer?
Not sure about reformer life - original one has over 40k hrs.
Cell stack life is the critical factor - this 1991
generation stack lasts about 40k hrs. - the latest
technology is expected to last longer.
> How much waste heat is produced to heat water (BTU)?
At full load there is over 700kBtus recoverable.
(See http://www.internationalfuelcells.com for more info.)
>
> Thanks
>
> Charles Perry P.E.
Paul,
In a truely deregulated market, aggregators will provide a market, as
only those with the largest loads will find it makes sense to purchase
their power direct from a generator. Likewise, most co-gens will
either sell into a pool, or to an aggregator, in part depending on the
reliability of their generation curve.
John Seymour
--
John Seymour
Do they have net metering in your state? Is it optional or a requirement?
And, what mechanisms are in place so that if you're working on a line which
supposedly has no current flowing through it, someone w/distributed
generation isn't inadvertantly putting current onto that line?
Watson6844 <watso...@aol.com> wrote in message
news:20000828223854...@ng-cr1.aol.com...
Do they have net metering in your state? Is it optional or a requirement?
And, what mechanisms are in place so that if you're working on a line which
supposedly has no current flowing through it, someone w/distributed
generation isn't inadvertantly putting current onto that line?
Watson6844 <watso...@aol.com> wrote in message
news:20000828223854...@ng-cr1.aol.com...
Charles Perry P.E.
"Watson6844" <watso...@aol.com> wrote in message
news:20000828223854...@ng-cr1.aol.com...
I can think of a couple of mechanisms:
Let's say a circuit is out - downed line or tripped substation brkr.
What's the chances of a small distributed generator carrying all the
load on that circuit w/o tripping on overload? Remote possibility.
But a better mechanism with something like a grid-connected
residential fuel cell is the fact that these systems use line-
commutated inverters. They act as current sources, not voltage
sources. If there is no grid voltage there is no current output.
On top of this, these inverters have built-in relay protection that
instantaneously disconnects the inverter on even a minor grid
disturbance. And since there is no rotating parts (none of the inertia
that a conventional generator has), inverters are incapable of
delivering much fault current.
Its a great idea if you want backup power, but even under normal gas prices,
my utility gets it to me cheaper. It does beat a generator though, but I
wouldn't buy one thinking its gonna save me money by using it as my sole
source of power.
>
> http://www.internationalfuelcells.com/
>
> Just out of curiosity, I plugged in my residental rates to one of
> their commercial fuel cell break-even calculators and figured out that
> it would pay for itself in under four years.
First you have to assume that the fuel cell can do it cheaper than the
utility. Even under normal gas prices you might see 9cents/kwh. But with
gas prices today?....about 13cents/kwh.
It is a much better option than a generator if you want to use it as
co-generation.
Oh I don't know about that. Electric cooperatives are embracing it and
putting in as part of their plan under deregulation. Mostly because they
know it will not replace the electric distribution system, but rather give
customers a co-generation choice. And they will certainly help reduce
demand which will help utilities protect themselves and their customers from
price gouging in the summer time that deregulation has facilitated.
Like the oil companys fighting the alt. fueled
> cars...just a matter of time.
Well, the oil companies can fight it if they want, but I don't think people
are too jazzed about fuel cell cars. As a muscle car enthusiast, you can
keep them.