alt.energy.renewable

"Rob Dekker" schrieb im Newsbeitrag
news:gt2Aj.8882$tW.6509@nlpi070.nbdc.sbc.com...
>
> "Roland Mösl" wrote in message
> news:7d3cd$47cf8757$557fe8ca$22976@news.inode.at...
>> schrieb im Newsbeitrag
>> news:0da45e1d-bed4-486d-846f-c2d52d91c8a2@e23g2000prf.googlegroups.com...
>>> New study says ethanol from cellulose not likely affordable - ever!
>>
>> This study is a nonsens.
>>
>> This study goes with small increases of oil price
>> This study goes with ICE cars only
>> This study is crap.
>>
>> Look on the oil price, $104,30 highest ever.
>>
>> Look on the peak oil study of the energy watch group.
>>
>> When oil demand is in 2018 at 103 million barrel a day,
>> oil delivery at 63, this 40 million barrel gap can only
>> be filled in 2 ways: $300 oil price or a huge effort to
>> built a huge photovoltaic world producition
>
> I agree that $300 oil will be here sooner than most people think.
> Not sure if that will be because of a collapsing dollar or because of the
> reduced availability of oil in the future.
> People will get creative with that. They always do.
>
> But I fail to see why you pull PV into this story, and even promote it as
> the one and only alternative.
> PV and oil/alternative fuel have very little to do with each other. PV is
> generating electricity, oil goes mainly to automotive fuels.

And we will have to replace this complete inefficient oil wasters against
plug-in hybrid cars

15 kWh /100km for a medium sized car
http://car.pege.org/2007-iaa/opel-flextreme.htm




> The only spot where they have overlap is for the charging of batteries for
> plug-in hybrids and electrical vehicles.
> And that does not happen very often yet, because of a gezillion reasons,
> mostly because batteries as such a poor energy container.

You are talking about lead batteries
I talk about lithium

> Even if the battery problem is solved, there are many more obstacles for
> PV.
> For example, for home cooling, PV sounds like the perfect choice : If the
> sun shines you want your AC to run.
> So why is half the world (around the equator) not plastered with PV panels
> ?
> Because bulk electricity production NOT using PV is still so much cheaper
> than using PV.

When You want to produce much more electricity, You run in problems having
enough coal, natural gas, the prices go up.

> And it will remain so for a long time, because there are so many
> alternatives for electricity generation : coal, natural gas, nuclear,
> wind, geothermal, biomass

That's all far away from the possility to produce enough energy to replace
oil
http://live.pege.org/2008-energy/with-photovoltaic.htm

> efficiency. All these create more energy per dollar than PV.

But not enough energy.

Look on this joke called atomic power. Just around 2000 TWh yearly electric
power

This is a range to replace 9 Million barrel a day.

The problem to solve is several times larger.

It's not the question what is cheapest
It's the question, what has the potential to deliver enough energy.


--
Roland Mösl
http://car.pege.org cars and traffic
http://live.pege.org building and live
http://www.pege.org