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Discussion: L'nergie gothermique Montral

  1. #1
    Date d'inscription
    septembre 2011

    Par dfaut L'nergie gothermique Montral


    Ces derniers jours, j'ai visit plusieurs projets de condominium. Les systmes de chauffages offerts dans ces condos sont toujours les mmes: les bonnes vieilles plinthes lectriques situs au bas du mur pour bien asscher l'air. J'aimerais bien voir une certaine volution de ce cot. Je pense surtout la gothermie. Je ne vois que des avantages cette source d'nergie, spcialement bien adapte pour notre climat et pour les superficies suprieures 2500 pieds carrs. Lorsque cette dernire condition est remplie, on rentabilise l'quipement rapidement. La chaleur et fraicheur du sol est puis gratuitement. C'est rempli de bon sens.

    date, je rpertorie seulement 3 projets de condos Montral offrant la gothermie.

    Square Benny
    Promoteur: Dveloppements McGill

    Maison Productive House
    Promoteur: Produktif Studio de Design

    Les Jardins de Westmount
    Promoteur: Roland Hakim et associs

    Pourquoi aussi peu promoteurs immobiliers offrent une telle technologie dans leurs projets de condominiums? En connaissez-vous les raisons? Si vous connaissez d'autres projet de condominiums avec gothermie, SVP partagez l'information.


  2. #2
    Date d'inscription
    fvrier 2011

    T'as raison, ya pas mal de chemin faire de ce ct-l.

  3. #3
    Date d'inscription
    fvrier 2011

    C'est pas des condos mais il y a un projet de maisons unifamiliales dans le nouveau St-Laurent qui comprennent la gothermie.

  4. #4
    Date d'inscription
    avril 2010
    1 925

    Geothermal isn't really geothermal in the traditional sense. What they are doing is using heat pumps except putting the outdoor side (hot side in summer, cold side in winter) with a underground coolant circuit to be a little more moderate over the year, say the ground source is 10 - 15 *C year-round instead of say -10*. It is a bit more economical than a traditional air-source heat pump since the delta T is lower but you have so much added complexity and capital cost that it doesn't seem to make sense in most cases. People talk of a payback period but they always compare to baseboards that consume much more energy than heat pumps do. It isn't like Iceland where they can easily access a ground source at 80-90 *C so they just pipe the water through radiators. In terms of condos it is surely a cost issue. Baseboards mean zero expense on condo fees and low capital expense. To use geothermal probably they are running one giant heatpump on the roof and that has big capital expense and then recurrent condo fees. But also - how would you adjust temperature in the individual units?
    So live this day that you can look every damn man straight in the eye and tell him to go to hell.

  5. #5
    Date d'inscription
    novembre 2011
    Westmount, Quebec

    Par dfaut Geothermail energy for condo buildings


    This is a very interesting discussion forum that I just discovered and I am glad that the topic of geothermail energy is being discussed in the context of new condo construction. I would like to clarify a few items that the previous poster has mentioned regarding the benefits of geothermal energy for a residential condo building.

    The heat pumps are decentralized and are individually distributed in each apartment in such a way that each resident would have his own heat pump controlled with its correspondent thermostat. Thus controlling the degree of comfort he or she wishes to have. Indeed it is correct that it is much more expensive upfront to put geothermal installations instead of straight baseboards instead of a window shaker air- conditioning unit. However, they are two completely different systems and philosophies which should not be compared directly.

    In our experience when we installed the first geothermal system in Montreal for large installations in 1995 (please see the article below), we found that the initial cost of the geothermal energy system was less than a traditional system while also offering the benefit of being approximately 70% less costs in terms of energy consumption; not to mention the reduced ecological footprint that such a system provides.

    In the case of residential construction, in our project Selby: Jardins Westmount the initial installation of a decentralized geothermal system is far more expensive than a straightforward baseboard system but as everything else in the project, the philophy is not the same as in regular condos. We are offering top of the line construction features such as triple glazed windows, the geothermal sytem, and many other ecological and sustainable construction features that would save the condo owners a lot of money in the long term while keeping the price per square foot very competitive.


    Roland Hakim, Eng.
    SelbyCampus Inc.
    Dernire modification par Roland Hakim ; 14/11/2011 17h22.

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