[Equest-users] Huge envelope changes having small affect on energy savings

CleanTech Analytics jeremiah at cleantechanalytics.com
Wed Aug 22 09:52:18 PDT 2012


Is your building in a very mild climate with only a few days per year of
extreme weather?


*Jeremiah D. Crossett*
*CleanTech Analytics*
*503-688-8951*
*www.cleantechanalytics.com* <http://www.cleantechanalytics.com>


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On Wed, Aug 22, 2012 at 9:48 AM, Lee Chorney <leec at alliedconsulting.net>wrote:

> Hi All,
>
>
> I recently did a model where I had the same system in both base and
> proposed but I changed the R-Value from 4 (base) to 20 (proposed). I also
> changed the window U-value from .80 (base) to .35 (proposed). After I did
> the run, I saw only a 5% savings between the heating and cooling use in the
> model. When I looked at the loads I saw the base had twice as much cooling
> and heating load than the proposed. Does any know why the energy savings
> would only be 5% when you have a huge difference between the cooling and
> heating loads?
>
> Thanks,
>
> Lee
>
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