Posts Tagged ‘geothermal energy’

Understanding Geothermal Energy

admin | Announcement in geothermal energy | Comments (609)

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Did you know that Geothermal energy represents one of mans earliest forms of renewable energy? That’s right, since prehistoric times man has harnessed the inert insulating R-values offered by the earth. As Contemporary man we could learn a lot from our predecessors. By living in caves, early man was protected from the harsh brutality of all the earths other surprises. Not only were they sheltered from wind, rain, snow, cold, heat, and storms, but their bunkers also gave them security from other threats and predators.

As we evolved we departed the relative security of our underground homes to dwell in the comfort of Houses, apartment buildings, and condominiums. Perhaps there weren’t enough caves to go around, or maybe people didn’t want to live in the dark. Well geothermal energy is still available and I suspect it always will be. The good news is that we don’t have to live in the dark to enjoy the many benefits of living underground.

Underground Homes, otherwise known as Earth Shelters, are truly the most energy efficient homes available today as they utilizing all of earths comforting properties. However there are many ways to harness this energy while living on top of the earth. The future of geothermal energy is now! The uses vary greatly and include large scale energy production as well as individual home energy solutions.

The process of converting oil to energy is only 50% efficient while converting geothermal to energy is 80% efficient. The potential for this form of renewable energy is absolutely enormous. Modern day applications include:

  • Heat (in the form radiant floors)
  • Air Conditioning
  • Hot water
  • Swimming Pool Heating and cooling
  • And much more!

The common misconception is that these applications can only be used in new homes. The truth is that existing homes and their systems can be retrofitted to accept geothermal applications.



Industry and business would benefit dramatically with the implementation of Geothermal Energy Practices
. Consider the food industry. There is an enormous amount of energy expended in the dehydration of food products as well as refrigeration. Industry that uses drying as a part of their manufacturing process such as lumber companies are prime candidates. Heating and cooling large commercial spaces or businesses that use an abundance of hot and cold water such as commercial laundromats would experience huge savings as well. The possibilities are endless. Home owners. CEO’s, managers and business planners alike would benefit greatly from retrofitting existing plants and operations, and those who are building for the future would see significant savings in both the short and long term.
Geothermal Energy : Renewable Energy and the Environment
Geothermal energy accounts for over 9700 megawatts of electrical energy and that number is expected to climb fast. The earth holds an estimated 42 million megawatts of attainable energy at all times. In fact Sweden has the largest geothermal system in the world and has decreased it’s dependence on fossil fuels by 70% and is on track to be free of oil energy reliance by the year 2020.

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Underground Home Blog

admin | November 2, 2008 in Uncategorized,underground homes | Comments (1,119)

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Underground Homes
, otherwise known as earth sheltered homes, have become a hot topic and have moved to the forefront of the green movement. These homes are the epitome of sustainability. Passive Annual Heat Storage is implemental in achieving a homes green status. PAHS is a process in which the home heats the Earth around it in warmer months and naturally radiates back in when winter arrives. subsequently the process reverses in the summer, naturally cooling the home. This process alone can reduce fossil fuel consumption by as much as 80%.

Underground Homes are perfect candidates for Geothermal Heat Pump systems. geothermal energy is a process that is not dissimilar from PAHS in that it uses the natural warming and cooling of the earth to aide in heating and cooling a home. Fluids are cycled through pipes in various applications and either circulated through a blower or used in a radiant flooring system.

The cost of building an Earth Sheltered Home is comparable to conventional buildings as
an initial expense but the long term energy savings and tax advantages of owning a green
home can add up to a huge savings over time.

There are three basic types of Earth Sheltered Homes that can be integrated into any
landscape.

Atrium style homes are usually u-shaped and are built below grade with one or two open
ended walls for egress and lighting. This is sometimes refered to as a courtyard style
because the center of the u-shape is a privatly enclosed area, swimming pools are often
itegrated into this space. The top of the house is open for anything incuding; a living
roof, garage, tennis or basketball courts, or solar and wind power generators.

Elevational underground homes are built into the side of a mountain. Lots that otherwise would be
unbuildable can now be part of the built-environment while preserving precious farm land in the process. This kind of home is the most energy efficient of the three as a result of the thermal mass that covers three sides and the roof. This style is also referred to as an Open Ended Dome

Berm Homes are built above grade, and are usually only open in the front and back, and are
covered from side to side.This style is often refered to as the see through dome. The design
possibilities are endless and can span several floors or sprawl over a large site. One
drawback of this design is that the earth used to cover the home is usually imported and can be expensive. Advantages include; lower excavation costs, expandability, and design capabilities.

Underground Homes
are Cool in the summer and warm in the winter. It just makes more sense
to live sustainably. Preserving our natural resources and lowering our carbon footprint is
essential to maintaining an environment that we can pass on to our children and our childrens
children.

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