Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Gold/Mining/Energy : Big Dog's Boom Boom Room -- Ignore unavailable to you. Want to Upgrade?

To: carl a. mehr who wrote (96361)	2/3/2008 4:58:20 PM
From: Elroy Jetson	Read Replies (1) \| Respond to of 206334

High temperature geothermal plants are normal power plants on the power plant side of the heat exchanger. On the geothermal well side of the heat exchanger, pipes don't suffer from corrosion problems when an appropriate alloy and or spray coating is used. The correct combination varies by location determined by the mineral combination and pH of the steam. Pipes carrying the steam from the ground through the heat-exchanger do experience deposition of minerals, primarily silica. This is typically treated weekly with a rapid high temperature acid flush. As for the location of geothermal plants operated by Chevron and others, you may refer to the documentation I provided when you previously posted your speculations. Message 24125987 The information remains the same as last month. The continued success of Chevron's global geothermal and oil operations don't hinge on your personal belief or approval - though you may certainly believe what you like. I suspect you will need your memory refreshed again in another month's time. Senility? .

To: carl a. mehr who wrote (96361)	2/4/2008 2:47:40 AM
From: Snowshoe	Respond to of 206334

>>Chevron runs an advertisement where they claim to be supplying power to a city of 7 million people using thermal energy. I wonder where this city is located?<< Apparently this is the ad you saw... Chevron - Human Energy [Part 3] (1.02 minutes) youtube.com It says: "Today we generate enough geothermal energy to power 7 million homes", but doesn't say they all live in one city. A simple web inquiry shows that Chevron has major geothermal plants in Indonesia and the Philippines... Renewable Energy for Developing Countries Chevron is the largest private producer of geothermal energy in the world, accounting for more than half of all privately developed geothermal power. Our geothermal operations started more than 30 years ago when we discovered Darajat, a major field in Indonesia. Acquiring Unocal in 2005 brought three important sites for geothermal energy production into the Chevron portfolio: Gunung Salak in Indonesia and Tiwi and Mak-Ban in the Philippines. Combined, the four Pacific Rim sites generate 1,273 megawatts of geothermal energy—about 13 percent of the world's geothermal supply. The energy produced by our Indonesia sites produces enough energy to supply approximately 3.9 million homes in the area. In the Philippines, Chevron geothermal power supplies 7 percent of the electricity needed by Luzon, the country's largest island and home to 43 million people. chevron.com

To: carl a. mehr who wrote (96361)	2/4/2008 7:46:13 AM
From: ChanceIs	Read Replies (2) \| Respond to of 206334

>>>I haven't seen a working thermal power plant yet. Has anybody?<<< Calpine has a number of working geothermal power plants in its portfolio. They have been operating for a least 10 years (I suspect 25+.) I admit I have never seen one. ;-) Geothermal Power Calpine operates 19 geothermal power plants at The Geysers region of Northern California, generating up to 750 megawatts of renewable "green" power or nearly 40 percent of the geothermal energy in the United States, making Calpine the largest producer of geothermal energy in North America. Geothermal power plants take advantage of a natural, clean energy source - steam from the earth's interior - to produce electricity. Because these plants do not burn fossil fuel, they have an inherent environmental advantage. Presently, this electric-generating technology is practical in only a few parts of the world, but innovative technologies, many of which Calpine has pioneered, such as reclaimed water recharge projects, are expanding and extending this valuable natural resource. At The Geysers, Calpine captures steam in the geothermal reservoir and pipes it to generating units. The steam spins a turbine that drives a generator to produce much-needed electricity for the California power market. To learn more about Calpine’s geothermal assets, please visit: www.geysers.com

To: carl a. mehr who wrote (96361)	2/4/2008 10:10:49 AM
From: SuperChief	Respond to of 206334

I haven't seen a working thermal power plant yet. Has anybody? I visited my wife's home in Negros Occidental, Philippines, a year ago and was surprised to learn this: Negros Island is close to being self-sufficient in terms of power (220 MW) and all of it comes from renewable energy. In terms of power generation mix, Negros Island is now utilizing 100 percent renewable energy with geothermal providing 99.6 percent while the remaining 0.4 percent comes from hydro. They also are producing ethanol from sweet sorghum which grows faster than sugar cane. Sweet sorghum can be harvested in 100 days compared to sugar cane which needs 265 days. Might live out my remaining days there once she retires. (I'm already retired) Ronbo