[TRNSYS-users] Weather Stations

[Ben Heymer]

Roger,

The suppliers of the weather data are happy to discuss their technical
approach for generating data, in my experience. The methods do vary a bit
so it's a good idea to ask. Most will provide you with whitepapers and
various other technical references.

There is no "right" answer, especially when it comes to weather. If you
have hesitations, you should run your simulation with multiple weather
files from the broader geographic region, including trusted TMY files from
airports (even if they are not very close to your site). This will give you
a range of results to work with and hopefully show that your system will
perform satisfactorily over a range of possible weather outcomes. If system
performance is very sensitive to the weather file data, then it's probably
a risky investment in the real world.

Ben Heymer, PE

On Fri, Aug 7, 2015 at 3:54 PM, Roger Hill <wda7465 at yahoo.com> wrote:

> Thank-you Tim,
>
>
>
> I’ve managed to find some of the files I’ve been looking for. However, one
> question that sticks in my mind is how do I know if the data is accurate or
> not without doing my own monitoring over years to validate? Many stations
> have sporadic data collection, so have to interpolate with nearby stations,
> etc. It’s hard to predict the future of course, but I’d like to have some
> reasonable assurance that the designs I create will realistically apply to
> a typical environmental year. Any ideas as to what I should look out for or
> the questions I should be asking?
>
>
>
> Cheers,
>
> Roger Hill
>
>
>
>
>
> *From:* TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] *On
> Behalf Of *mcdowell at tess-inc.com
> *Sent:* Wednesday, 5 August 2015 3:14 p.m.
> *To:* TRNSYS users mailing list at OneBuilding.org
> *Subject:* Re: [TRNSYS-users] Weather Stations
>
>
>
> Roger Hill -
>
> There are a number of sources for weather data.  You can check
>
> Energy Plus Weather:
> http://apps1.eere.energy.gov/buildings/energyplus/weatherdata_about.cfm
>
> White Box Technologies: http://weather.whiteboxtechnologies.com/
>
> Weather Analytics: http://www.weatheranalytics.com/wa/
>
> and I am sure there are many more.
>
> Regards,
>
> Tim
>
> ---
> Timothy P. McDowell
>
> Executive Vice President
>
> Thermal Energy System Specialists, LLC
>
> 22 N Carroll St, Suite 370
>
> Madison, WI 53703
>
> 608-274-2577
>
> On 2015-08-05 04:32, Roger Hill wrote:
>
> Hello,
>
>
>
> I’m building an extensive hydronic and PV solar model for a campus of a
> dozen buildings in Australia west of Sydney in the Blue Mountains.
> Meteonorm has a site (#947430) that is close to our site (Blackheath), but
> this is a secondary station. I don’t know if this is reliable data or not
> and I haven’t been able to get anyone at Meteonorm to respond to my emails.
>
>
>
> Does anyone know where I can find a reliable weather data set for close to
> our location that will work with TRNSYS type 15?
>
>
>
> Cheers,
>
> Roger Hill
>
>
>
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>
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>
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