From: Eeyore on


Rich Grise wrote:

> Eeyore wrote:
> > Jamie wrote:
> >
> >> You guys are funny, near us, we have a gambling casino, "Mohegan Sun"
> >> They have and have had for at least 4 years now that I know of
> >> 3 Fuel cell generator complexes. These units operate the main facility
> >> 100% with plenty of reserve. They obviously are self sufficient because
> >> all they ever need to do is replace mechanical things that wear out,
> >> which is normal in any generating facility.
> >
> > So where does the energy to replace 'the things that wear out' come from ?
> >
> > Is this solar powered electrolytic hydrogen being used ?
> >
> > How much did it cost ? How much power does it generate ? What's the price per
> > kWh ?
>
> I just wonder where they're getting the hydrogen for these fuel
> cells.

It turns out they're using good old natural gas.

Graham

From: Eeyore on


BradGuth wrote:

> I haven't invented or even discovered one damn thing.

Thought as much.

Graham

From: Eeyore on


Rich Grise wrote:

> John Larkin wrote:
> > BradGuth <bradguth(a)gmail.com>
> >>
> >>A sufficient mass production of those 100+ meter towers, along with
> >>their wind turbine driven generators plus whatever extent of the best
> >>available PVs that can also take advantage of each given tower without
> >>devouring or otherwise contaminating precious surface ground area
> >>seems entirely worth our doing,
> >
> > I get it. The solar cells have more output when they're closer to the
> > sun. Good idea.
>
> I wonder if there's a measurable difference in solar influx between,
> say, Death Valley and the top of Mount Everest?

Fewer clouds in Death Valley AIUI.

Graham

From: krw on
In article <pan.2007.10.04.17.04.19.217709(a)example.net>,
rich(a)example.net says...
> On Wed, 03 Oct 2007 14:11:02 -0700, John Larkin wrote:
> > On Wed, 03 Oct 2007 20:29:09 -0000, Willie.Mookie(a)gmail.com wrote:
> >>
> >>THE ANSWER - LOW COST HYDROGEN FROM SUNLIGHT
> >>
> >>One simple solution I have is to reduce the cost of photovoltaics to
> >>less than 7 cents a peak watt - and use that DC power to produce
> >>hydrogen from DI water at very los cost. Then store that hydrogen in
> >>empty oil wells - about 100 day supply is needed for a stable national
> >>hydrogen supply system..
> >
> > 7 cents a watt would be wonderful, but it's about 30:1 away from what
> > anybody is doing, even at the research level. And if we had such
> > power, the first rational use is to dump it into the grid, not convert
> > it to hydrogen at absurd net efficiency.
> >
> > Low cost solar would be great, but there's no particular link to
> > hydrogen. Too many "advanced" energy concepts are predicated on
> > ultra-cheap solar power, cheap enough to waste prodigiously. That
> > ain't gonna happen.
> >
>
> Anybody remember when they first started using nuclear, and electricity
> was going to be virtually free?

Sure, I remember. My brother was VP of a power company that was
selling the concept, except he thought they were serious and sold my
mother on electric (resistive) heat. I was just an EE student at the
time, so no one listened.

> I guess that one didn't pan out either. )-;

His "Watt-Saver" (PF correction) scheme didn't either.

--
Keith
From: krw on
In article <1191527459.306136.51630(a)22g2000hsm.googlegroups.com>,
bradguth(a)gmail.com says...
> On Oct 3, 7:17 pm, krw <k...(a)att.bizzzz> wrote:
> > In article <4703c6a...(a)news.cadence.com>, edmond...(a)ieee.org says...
> >
> >
> >
> >
> >
> > >BradGuthwrote:
> > > > On Oct 2, 9:33 am, Charlie Edmondson <edmond...(a)ieee.org> wrote:
> >
> > > >>Hey Braddie,
> > > >>I wasn't saying LOX was safe! I was saying, compared to H2O2, it is
> > > >>soda water! 8-)
> >
> > > > OK, then put your relatively safe "soda water" tank worth of LOx to
> > > > work within a Hummer or GM Volt, and basically go for it, especially
> > > > if it's supposedly so much better off than h2o2.
> >
> > > > What's the combined LOx+c12h26 of clean Mj/kg worth these days?
> >
> > > > How much LOx per gallon of c12h26 or fossil whatever are we talking
> > > > about?
> >
> > > > What's the well insulated storage tank of that amount of LOx going to
> > > > take, in outside measured gross volume, if looking at only a 5%/month
> > > > loss?
> >
> > > > Is that insulated amount of LOx any smaller than a locomotive tanker
> > > > car?
> > > > - Brad Guth -
> >
> > > Why bother when there is all this nice atmospheric O2 around to oxidize
> > > my fuel. Sure, it has this nice regulating N2 mixed in, but that way
> > > everything else don't burst into flames! I ain't going into outer space
> > > in this thing, ya know! ;-)
> >
> > But if you had H2O2 you could be in outer space[*], like Brad.
>
> That is true, as the h2o2/c12h26 powered Hummer or GM Volt would in
> fact operate even better while in space, such as upon our moon, or
> even while under terrestrial water or within whatever muck, and still
> be delivering terrific empg as well as contributing zero NOx.

A Hummer would operate even better in space? Wouldn't traction be a
bit of a problem? You are a space shot, alright!


--
Keith