Re: [EnergyPlus_Support] WMO Station 107290

[Linda Lawrie <linda@xxxxxxxxxxxxxx>]

Ignore the values in the stat file -- they are just fron the
weather file you are using and do not necessarily represent long term
values.

At 07:07 AM 10/20/2011, Jean marais wrote:
> My LEED reviewer says I should
> have climate zone 5. The stat file claims 4A (design builder and Google
> Earth claim 4C), but is wrong firstly because, like the hourly ann.
> weather file, it has zero for rain entries. If I use CDD and HDD values
> listed in the stat file, I come to 4B. ASHRAE HOF CD-ROM has HDD and CDD
> values differ from both the stat file and values listed in ASHRAE
> 90.1-2007 for this weather station. 
>
> My location is actually 40 km north of this location where the closest
> weather station is 107275. ASHRAE HOF CD-ROM has HDD and CDD values for
> this location as well. These would also put me in Zone 5.
>
> Since my insulation values, etc. for the baseline building depend on the
> climate zone, it is important to use the correct climate zone as basis.
> As most of my energy usage is for heating, I would have a better energy
> performance vs. a baseline with worse insulation.
>
> Using climate zone 4 is conservative and will award less points, so
> changing to 5 is beneficial.
>
> However, I am simulating using an hourly ann. weather file based on WMO
> Station 107290, that was probably used to generate the stat file. I don't
> know what to do.
>
>
>
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