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Tag:

heat pump

Isentropic’s Pumped Heat Electricity Storage Runs Hot and Cold

written by Walter Wang

Isentropic is a UK company that has developed an energy storage system called Pumped Heat Electricity Storage (PHES).

Isentropic owns several international and U.S. patents and applications. U.S. Application Publication No. 2010/0257862 (’862 Application) describes and claims the PHES technology.

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July 2, 2012 0 comment
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Geothermal Heat Pumps Face Strange Barriers to Adoption

written by Walter Wang

Geothermal (Ground-Source) Heat Pumps (GHPs) make use of a completely different set of principles than the kind of geothermal we commonly discuss. Where the latter relies on the transfer of thermal energy from one fluid to another, like an egg placed in boiling water, the former relies on the principles of

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November 9, 2011 2 comments
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New Geothermal System Taps Heat Without Geological Risks, Firm Says

written by Yale Environment 360

A U.S. startup says it has developed an enhanced geothermal energy system (EGS) that engineers say can tap into heat from the Earth’s interior without any associated risks of triggering earthquakes or polluting underground aquifers.

While typical EGS processes require developers to

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May 18, 2011 0 comment
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Geothermal Heat Exchange Provides Lower Utility Bills & Reduced Emissions

written by Chuck Colgan, CA Center for Sustainable Energy

The most unusual place to harvest energy from the sun is perhaps also the most effective and efficient – underground. Earth absorbs nearly 50 percent of the sun’s radiation that reaches the surface and stores it as heat that can be used to warm up or cool down homes and other buildings – without polluting the environment. All you have to do is exchange it between

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November 19, 2010 3 comments
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Book Review: Sustainable Energy -– Without the Hot Air, by David JC MacKay

written by Edouard Stenger

I recently finished reading  a book I strongly recommend to anyone interested in sustainable development and energy. It is packed with figures and findings that I believe will easily start discussions among CleanTechies.

The author, David JC MacKay, is Professor in the Department of Physics at Cambridge University and was recently appointed Chief Scientific Advisor to the UK Department of Energy and Climate Change responsible for the Low Carbon Transition Plan.

One of the main findings of this book is that electrifying our cars and installing heat pumps in our buildings would enable us to cut significantly both our greenhouse gas emissions and fossil fuel consumption. Both solutions are much more efficient than the current traditional ones and could benefit from massive electrification to answer all our energy needs.

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November 2, 2009 1 comment
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Phoebus Energy unveils hybrid water heating system in Israel

written by Jonathan Shapira

Phoebus Energy unveiled its hybrid water heating system last week at the community center in Gilo, a neighborhood of Jerusalem, according to an article in The Jerusalem Post.

Phoebus Energy, founded in 2007 with $2 million in seed funding from Terra Venture Partners, has developed a hybrid heat pump system that integrates with existing oil-based systems to make them more efficient. Newly appointed CEO Yaron Tal told The Jerusalem Post that Phoebus Energy’s system saves between 50 and 70 percent of oil and reduces pollution by 80 to 90% compared to a traditional heat pump system.

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July 21, 2009 0 comment
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