Eideard

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Posts Tagged ‘geothermal

Norway to build northernmost green energy building in the world

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Hydro’s energy-neutral test center in Ulm, Germany

A planned building in Norway will be at the most northern location so far to generate more energy than it uses, demonstrating that “green” buildings can work anywhere…

A group including Norwegian aluminum maker Norsk Hydro and Swedish construction group Skanska said it would construct the six-to-seven-story building in Trondheim, with offices and shops covering up to 9,000 sq meters.

The building will use solar panels and sunscreens on an aluminum facade, which will have a new energy-saving ventilation system. It will also draw on geo-thermal energy and use other technologies such as heat pumps.

Over the year, it will generate more power than it consumes.

“This will be the world’s most northerly ‘energy-positive’ building,” Hydro Chief Executive Svein Richard Brandtzaeg told Reuters in a telephone interview of the project, due for completion in 2013.

If we can do it here, we can do it anywhere,” he said, adding that there were global business opportunities for Hydro in clean energy for buildings that usually emit greenhouse gases from burning fossil fuels for heat, light and air-conditioning.

Trondheim, about 300 km south of the Arctic Circle, is on the same latitude as southern Greenland, Alaska and Siberia…

He said that Hydro had helped build an office block for Vodafone Group in Milan for 3,000 people, in which the facade cost 16 percent more than a conventional building but helped halve energy consumption.

“It cost 16 percent more, but the payback time is less than two years,” due to energy savings, he said.

Most folks who hope to ignore efficiencies in alternative energy source try just as hard to block out the fact that these are energy sources which are becoming more efficient and less expensive over time. This is particularly true of solar-generation models which continue to diminish in cost as engineering and scientific advancement accumulate.

Written by eideard

June 4, 2011 at 10:00 pm

Mapping project reveals large geothermal source in West Virginia

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New research produced by Southern Methodist University’s Geothermal Laboratory, funded by a grant from Google.org, suggests that the temperature of the Earth beneath the state of West Virginia is significantly higher than previously estimated and capable of supporting commercial baseload geothermal energy production…

The SMU Geothermal Laboratory has increased its estimate of West Virginia’s geothermal generation potential to 18,890 megawatts, assuming a conservative 2 percent thermal recovery rate. The new estimate represents a 75 percent increase over estimates in MIT’s 2006 “The Future of Geothermal Energy” report and exceeds the state’s total current generating capacity, primarily coal based, of 16,350 megawatts.

The West Virginia discovery is the result of new detailed mapping and interpretation of temperature data derived from oil, gas, and thermal gradient wells — part of an ongoing project to update the Geothermal Map of North America that David Blackwell produced with colleague Maria Richards in 2004. Temperatures below the earth almost always increase with depth, but the rate of increase (the thermal gradient) varies due to factors such as the thermal properties of the rock formations.

“By adding 1,455 new thermal data points from oil, gas, and water wells to our geologic model of West Virginia, we’ve discovered significantly more heat than previously thought,” Blackwell said. “The existing oil and gas fields in West Virginia provide a geological guide that could help reduce uncertainties associated with geothermal exploration and also present an opportunity for co-producing geothermal electricity from hot waste fluids generated by existing oil and gas wells…”

The team’s work may also shed light on other similar geothermal resources. “We now know that two zones of Appalachian age structures are hot — West Virginia and a large zone covering the intersection of Texas, Arkansas, and Louisiana known as the Ouachita Mountain region,” said Blackwell. “Right now we don’t have the data to fill in the area in between,” Blackwell continued, “but it’s possible we could see similar results over an even larger area.”

Here’s the published report. Researchers feel this presents an excellent opportunity to move the region towards cleaner energy, reduced costs.

I think there’s a real possibility of that happening – when they own as many state and federal politicians as the coal industry does.

Written by eideard

October 8, 2010 at 6:00 am

Central America turning to volcanoes for electricity

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Berlin geothermal field, El Salvador, producing 104 MW

Dotted with active volcanoes, Central America is seeking to tap its unique geography to produce green energy and cut dependence on oil imports as demand for electricity outstrips supply. Sitting above shifting tectonic plates in the Pacific basin known to cause earthquakes and volcanic eruptions, the region has huge potential for geothermal power generated by heat stored deep in the earth.

Geothermal power plants, while expensive to build, can provide a long-term, reliable source of electricity and are considered more environmentally friendly than large hydroelectric dams that can alter a country’s topography…

Guatemala, Central America’s biggest country, aims to produces 60 percent of its energy from geothermal and hydroelectric power by 2022.

The government is offering tax breaks on equipment to set up geothermal plants and electricity regulators are requiring distributors buy greater proportions of clean energy.

Some 1,640 feet below the summit of Guatemala’s active Pacaya volcano, which exploded in May, pipes carrying steam and water at 347 degrees Fahrenheit snake across the mountainside to one of two geothermal plants currently operating in the country.

Run by Israeli-owned Ormat Technologies Inc, the plant harnesses energy from water heated by chambers filled with molten rock deep beneath the ground. The company has been operating two plants in Guatemala for three years and wants to expand but is weighing the risks of drilling more costly exploratory wells…

More than a fifth of El Salvador’s energy needs come from two geothermal plants with installed capacity of 160 MW and investigations are being carried out to build a third.

Costa Rica, which has 152 megawatts of capacity in four geothermal plants, is due to bring a fifth plant online in January 2011 and is looking into building two more.

Nicaragua generates 66 MW from geothermal energy and in the next five years plans an increase to 166 MW.

Bravo!

The coneheads up at Los Alamos have participated in geothermal experiments, off and on, over the years. But, generally, the powers-that-be would rather keep the focus on death and destruction. Which is too bad. There’s enough intellectual horsepower there to lead to breakthroughs – no doubt.

Written by eideard

September 22, 2010 at 12:00 pm

Indonesia hosting world’s biggest Geothermal energy forum

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Geothermal power plant in Iceland

Indonesia is hosting what is being called the world’s biggest Geothermal energy conference.

The congress in Bali is an attempt to look at how to better develop geothermal power as an environmentally friendly fuel for the future…

It is often dubbed volcano power but the correct scientific explanation for geothermal energy is power extracted from the heat stored in the Earth’s core.

Indonesia has ambitious plans to tap geothermal power…The archipelago of more than 17,000 islands sits on the Pacific “Ring of Fire” – one of the most active regions in the world for volcanic activity…

Scientists say that in theory the planet’s geothermal power is enough to supply mankind’s energy needs and could certainly help to solve Indonesia’s fuel problems.

But the issue is cost. While environmentally friendly, the harnessing of geothermal power is also a very expensive endeavour.

Reports from the conference just might provide some info, some hope, some idea of folks realizing that a little extra time and money means a great deal to the future of energy production.

Or we can continue with the same short-sighted analysis of commerce and production that gets the world – repeatedly – into disaster-laden corners.

Written by eideard

April 25, 2010 at 10:00 pm

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