Knowledgebase: Weather
What should I be aware of when using Meteonorm weather files?
Posted by - NA - on 10 June 2008 04:52 PM
Here is a caveat about Meteonorm files:
Over the last few years, a number of users have needed weather data to use
with EnergyPlus where we don't have measured data (on the EnergyPlus web
site: http://www.eere.energy.gov/buildings/energyplus/cfm/weather_data.cfm).
When possible, we have created weather data using the Meteonorm
software. Meteonorm extrapolates hourly data from statistical data for a
location. Where statistical data aren't available, Meteonorm interpolates
from other nearby sites. Generally a statistical approach is a last resort--
weather files generated from statistics will not demonstrate the normal
hour-to-hour and day-to-day variability seen in measured data.

Each .ZIP includes a .STAT (EnergyPlus weather data statistics), .EPW
(EnergyPlus weather file), and .INFO (Information about the source data and
limitations from Meteonorm).

IN ALL CASES, YOU SHOULD REVIEW THE .STAT FILE FOR THE LOCATION BEFORE USING
ANY OF THESE FILES TO ENSURE THAT IT REPRESENTS THE CLIMATE OF THE LOCATION AS
YOU UNDERSTAND IT. IN MANY CASES, A NEARBY LOCATION WITH MEASURED DATA MAY BE
MORE APPROPRIATE THAN ONE DERIVED FROM STATISTICS.

YOU USE THESE FILES ENTIRELY AT YOUR OWN RISK.

As always, if you know of sources of weather data that we might be able to
share with the EnergyPlus community, please contact us.
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