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    • Strategies for Evaluating Retrofit Energy Saving Devices - Part 3

    By Hans De Keulenaer / Published on Tue, 2008-04-01 17:49

    In the third and final part of this series retrofit energy saving devices, Bill Howe from EPRI introduces a case study evaluating the energy saving potential of a transient voltage surge suppression device.

     

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    Strategies for Evaluating Retrofit Energy Saving Devices - Part 2

    By Hans De Keulenaer / Published on Wed, 2008-02-13 17:04


    In part 2 of this 3 part series, a 4-step procedure is presented that you could use for evaluating retrofit energy saving devices. Whether you're a consultant, purchaser or a third party looking at these technologies, this method can be useful. The methodology has been developed based on the author's personal experience looking at these devices in the lab and in the field, while comparing them with vendor claims.

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    Strategies for Evaluating Retrofit Energy Saving Devices - Part 1

    By Hans De Keulenaer / Published on Tue, 2008-01-15 09:00

    In this first webcast, of a series of 3, Bill Howe, Program Manager Power Quality with EPRI introduces the concept of retrofit energy saving devices, their definition, what claims they make and what technologies they use.

     

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    Is it possible to make a passive house from a normal house?

    By Hans De Keulenaer / Published on Sat, 2006-12-16 01:50

    The thermal bridges are avoided (thermal leak e.g. at a wall which is connected to the foundation without thermal braking) in the passive houses. The thermal bridges are almost always present in an existing house and it is very difficult to remove them. Mostly is it possible, but requires additional work and becomes quite expensive. At an existing terraced house you have to remove thermal bridges to the neighbour, which is very problematic.

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    Should I replace working motors with HEMs?

    By Sergio Ferreira / Published on Sun, 2006-01-01 02:00

    This is rarely economic, except for very old motors. But if you wait until a motor fails, then the economics are likely to be much more favourable, since the difference in cost between a new and a repaired motor may not be very much.

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    How easy are they to retrofit?

    By Sergio Ferreira / Published on Sun, 2006-01-01 02:00

    Apart from having a slightly longer frame, all the critical dimensions are usually the same as standard efficiency metric motors, so there are rarely any problems.

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