[atlite] Apply atlite to weather forecast data to create wind/solar generation forecasts

[gktho...@gmail.com]

Dear group,

I was wondering whether it would be possible to feed atlite a weather forecast, not actual weather data, to generate something like a renewable generation forecast.

I am still new to atlite, but I assume one would somehow need to "hack" the cutout, as this is automatically built from ERA5 or SARAH data, correct? Would you have any ideas how this could be done?

All the best,

Georg

[Fabian Hofmann]

Hey Georg,

this would be super cool! To make it clean, one had to create a new dataset into the supported data inputs in

https://github.com/PyPSA/atlite/tree/master/atlite/datasets

This could then be used to create a cutout.

Best wishes!

Fabian

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-- 
Fabian Hofmann 

Postdoctoral Researcher
Institute of Energy Technology
Technische Universität Berlin
http://fabianhofmann.org/

Group website: https://www.tu.berlin/ensys

[bsch...@gmail.com]

Hi Georg, all,

we have been thinking about the same for a while. Specifically, we would like to use atlite to derive probabilistic power forecasts from ECMWF's ensemble prediction system. I guess, the major issue here is how to deal with the additional dimension (ensemble members). Would be interesting to discuss this further.

Best regards,

Bruno

[Georg Thomassen]

Hi Fabian and Bruno,

I have to admit that I am just starting to think about this, so please excuse if I am saving very basic questions.

@Bruno: yes this is exactly what we have been thinking about. Just discovered recently that ECMWF has these forecasts with different lead times. Though I think they have only a limited range of past forecasts unfortunately (a couple of weeks or so).

@Fabian: Thanks once again for the lead into the right direction! So basically one would need to prepare tan xarray dataset with the right formatting, correct? 

Best,

Georg

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[bsch...@gmail.com]

Hi,

ECMWF's forecasts are available from 1992 onwards as 'expired real-time data' under CC BY 4.0 (see https://apps.ecmwf.int/archive-catalogue/) and there is also a web API (https://www.ecmwf.int/en/computing/software/ecmwf-web-api).

Hence, there should, in principle, be everything we need to implement a ECMWF_IFS.py (e.g.) under atlite's datasets.

Best,

Bruno

[Georg Thomassen]

Hi Bruno,

Sounds very interesting, but unfortunately I have not been able to find the data on the ECMWF webpage. Do you have a direct link, or have a foolproof description for me how I could get to the right dataset? :-)

Best,

Georg

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