No weather data for the location

[congzheng_zou]

How does EPW files being added to the epwmap ? Are they being added by all the users ?
If there a solution if there is no epw data in a city that we need by chance ?

[devang]

@congzheng_zou

Are they being added by all the users ?

No they are not.

@congzheng_zou

If there a solution if there is no epw data in a city that we need by chance ?

Please check the following posts. They have several resources listed for weather data.

Where to find .epw weather data

[This list will be modified over time] Free resources: The main source is DOE’s website: http://apps1.eere.energy.gov/buildings/energyplus/weatherdata_about… https://www.energyplus.net/weather One building.com is also coming around > (http://climate.onebuilding.org/). Their data is limited right now but they are working on that and also unlike the first resource the data has been through quality checks. There are a couple of weather files available on EnergyPlus mailing list (https://…

EPW File source:

Hi guys, I was checking out the System Advisor Model (SAM) by NRel and I eventually got to this page here and when I followed it I got here I realized I could download epw files from this site for almost every place I was keen to analyse. All along I had been using epw files from epwmap only. Is it correct to say the epw files on the website above by the PhotoVoltaic Geographical Information System are just as good as epwmap files?

https://bigladdersoftware.com/projects/elements/

intro - Meteonorm (de)

If none of the above works for you, then you will have to use available weather data for a similar weather type (Not necessarily the nearest).

[chris]

Thanks for the comprehensive answer, @devang . In addition to those resources, I know that @josephyang is looking for beta testers for a web API that can provide approximate climate data for essentially everywhere on the planet:

Looking for Beta Testers for Weather Data Service

Hello everyone, For the last year or so, I’ve been working on making historical weather reanalysis data (e.g. ERA5 Reanalysis) more accessible. Despite the comprehensiveness and the quality of the data, it’s not widely used due to the effort required to process the data. I’ve recently launched a service to access this data more easily and looking for beta testers. You can sign up at https://oikolab.com, creating an account and adding a subscription to ‘Starter’ to get access to historical rean…

So that’s a particularly good option if all of the other sources aren’t suitable.

[congzheng_zou]

Super !
Climate.OneBuilding.Org is so great.
Just need to download the relevant region [i.e. WMO Region 6 - Europe] and drag it into Google Earth.

[AbrahamYezioro]

Why not just use the LB_DownloadEPW component? It will take you to a map where you can pick the location.
-A.

[congzheng_zou]

In the epwmap site, sometimes you will not find the epw file for some cities, especially in Europe, very few cities has the epw file for downloading.

[josephyang]

Another source for European cities is https://rokka.shinyapps.io/shinyweatherdata/ - although it’s limited to 2016 only and only for Northern Europe for the time being, it works very well and you can specify the radiation data source.

[chris]

@congzheng_zou ,

The reason why you don’t see certain EPW files in EPWmap that is that OneBuilding is constantly adding new files to its database but we only update EPWmap every ~6 months or so. So, at a certain point, EPWmap should have all of the file you see in the KMZ but you would be right that the KMZ is the “latest and greatest” version of the OneBuilding database.

[Lukas]

The https://rokka.shinyapps.io/shinyweatherdata service is now updated with ERA5 global reanalysis climate data from Copernicus/ECMWF. Global coverage and data from 1980 until recent time. Fast access to long time series, formatted as CSV files or EnergyPlus EPW files.

CAMS satellite derived solar radiation data available as well, covering Europe, Africa and Middle East (roughly -66° to 66° in both latitudes and longitudes).

[josephyang]

Nicely done @Lukas!!

[Lukas]

Thanks @josephyang! Went for my own storage solution for the historical data (I want to add things like TMY and extreme periods identification, which requires access to the whole dataset). But I might use your excellent service at https://oikolab.com to keep it updated with more recent data.

[josephyang]

That’s fantastic that you updated your app - now I don’t have to create one myself.