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Decorrelate electrical load year from weather year

Open tgi-climact opened this issue 1 year ago • 2 comments

Changes proposed in this Pull Request

I suggest to decorrelate the electrical load year from the weather year. Up to now, we are using the snapshots as reference configuration to choose the electrical load from OPSD data. But because this load is also used to determine the not modeled part of the electrical load, we need this value to be as accurate as possible. Therefor, we should use a more recent value than the default 2013 value for cutouts.

Checklist

  • [x] I tested my contribution locally and it seems to work fine.
  • [x] Code and workflow changes are sufficiently documented.
  • [ ] Changed dependencies are added to envs/environment.yaml.
  • [x] Changes in configuration options are added in all of config.default.yaml.
  • [x] Changes in configuration options are also documented in doc/configtables/*.csv.
  • [x] A release note doc/release_notes.rst is added.

tgi-climact avatar Jan 09 '24 14:01 tgi-climact

I made it optional to take into account thermal senstive loads.

tgi-climact avatar Jan 10 '24 09:01 tgi-climact

But there is a high correlation between the temperature and the electrical load, isn't there? See for example

image

taken from https://doi.org/10.3390/en14113351. Seen many such plots over the years, stressing the importance to use correlated data for load and weather (even more so for heating demands)

martacki avatar Feb 16 '24 08:02 martacki

Thanks @martacki for your reply. The data is indeed highly correlated but here is my problem I need more recent data for electrical load (2013 is way too old) and cutouts are only available for 2013. I have successfully built a europe-2018-era5.nc but computing europe-2018-sarah.nc is much more intensive That is why I suggested to decorrelate both dates. Would you suggest anything else ?

tgi-climact avatar Mar 07 '24 09:03 tgi-climact

I agree, it's hard to build newer solar profiles for other years than 2013 using SARAH-2 data, but you can also use the era5 data for your solar profiles (instead of the SARAH-2 data). If you do this, we suggest to use a correction factor. With this, the correlation of electricity to weather would be accounted for... if this is better than using SARAH-2 data, I cannot tell. Intuitively, I'd say yes, but I am not aware of any research and qualitative analysis.

martacki avatar Mar 08 '24 09:03 martacki

Great PR there https://github.com/PyPSA/pypsa-eur/pull/204/ ! Closing this one.

tgi-climact avatar Mar 20 '24 08:03 tgi-climact