Geothermal energy to erupt - peak oil

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[Geothermal]

Typically, power generation using the earth’s heat required underground pockets of high-temperature water or steam to drive a steam turbine. Now, new technologies that use liquids with low boiling points in closed-loop heat exchange systems allow electricity to be generated at much lower temperatures. This breakthrough is making geothermal power generation viable in countries such as Germany that are not known for their geothermal resources and is one reason why the number of countries using the earth’s heat to generate electricity could almost double by 2010.

[Solarman]

Geothermal wrote:

Typically, power generation using the earth’s heat required underground pockets of high-temperature water or steam to drive a steam turbine. Now, new technologies that use liquids with low boiling points in closed-loop heat exchange systems allow electricity to be generated at much lower temperatures. This breakthrough is making geothermal power generation viable in countries such as Germany that are not known for their geothermal resources and is one reason why the number of countries using the earth’s heat to generate electricity could almost double by 2010.

Although good news, units operating in active seismic zones,would not be as reliable as something above ground that could repaired after the seismic event. We will always need several sources of energy generation. From home based solar, wind or microhydro to nuclear energy. IF,IF a breakthrough comes along,we could all use fusion instead of fission for future power needs.

[Geothermal]

Solarman wrote:

<quoted text>Although good news, units operating in active seismic zones,would not be as reliable as something above ground that could repaired after the seismic event. We will always need several sources of energy generation. From home based solar, wind or microhydro to nuclear energy. IF,IF a breakthrough comes along,we could all use fusion instead of fission for future power needs.

Hmmm, California's Old Faithful Geyser seismic event history? Also we know how unrelible fusion and fission are without seismic activity.

[Solarman]

Geothermal wrote:

<quoted text>Hmmm, California's Old Faithful Geyser seismic event history? Also we know how unrelible fusion and fission are without seismic activity.

Well,until you've ridden out a few siesmic events youself and seen a well or two go bad because the casing was bent by ground movement, keep your ill informed opinion to yourself. If it's above ground it can be fixed. Below ground it will have to be redrilled.

[Geothermal]

Solarman wrote:

<quoted text>Well,until you've ridden out a few siesmic events youself and seen a well or two go bad because the casing was bent by ground movement, keep your ill informed opinion to yourself. If it's above ground it can be fixed. Below ground it will have to be redrilled.

I know from first hand that it is easier to redrill a artesian well, than to fix a house foundation that was pushed in from frost. The drill crew came and drilled again in the same hole, they could of drilled anywhere else if I wanted. As far as the foundation goes they had to lift the whole house and remove all unstable foundation and then they did some custom form building for the new foundation. And then they lowered the whole house. Just imagine if that house was a Nuclear power plant, and the foundation cracked from the seismic activity you speak of. You can't put crack sealer under a Nuclear power plant. So tell me how it is easier to fix a foundation on a windmill or solar panels?

[Solarman]

Geothermal wrote:

<quoted text>I know from first hand that it is easier to redrill a artesian well, than to fix a house foundation that was pushed in from frost. The drill crew came and drilled again in the same hole, they could of drilled anywhere else if I wanted. As far as the foundation goes they had to lift the whole house and remove all unstable foundation and then they did some custom form building for the new foundation. And then they lowered the whole house. Just imagine if that house was a Nuclear power plant, and the foundation cracked from the seismic activity you speak of. You can't put crack sealer under a Nuclear power plant. So tell me how it is easier to fix a foundation on a windmill or solar panels?

You're talking about an artesian well not a geothermal well. Depending on the area you may have to drill down from 2,000 to 10,000 feet to get the heat needed for relaible commercial generation. The containment buildings of nuclear reactors are built to the seismic catagory necessary for the particular site. The reactor is encased in an all steel,usually stainless steel sturcture then this is encased by the proper steel rebared concrete outer structure. The concrete can be from several inches to several feet in thickness,that's how you ride out a seismic event. San Onofre in California will have higher mass as it has higher resistance to seismic events requirements than some of the reactors built in the Eastern U.S.

[seismic]

Solarman wrote:

<quoted text>You're talking about an artesian well not a geothermal well.

YES I said that. Agree greater depth is needed, but the drill will have to go deeper.

Solarman wrote:

<quoted text>San Onofre in California will have higher mass as it has higher resistance to seismic events requirements than some of the reactors built in the Eastern U.S.

Following a magnitude 7.3 earthquake in 2000 in an area where no geological fault was known, Japan's NSC ordered a revision of the country's 1978 seismic guidelines. This reported in 2006 and resulted in NSC and the Nuclear & Industrial Safety Agency (NISA) calling for reactor owners with NISA to undertake plant-specific reviews of seismic safety which are expected to be complete in 2008. Meanwhile revised seismic guidelines were issued in May 2007. When these reviews are complete the national seismic safety guidelines will again be revised.