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Hi Ben
Apologies, I saw your X-post which referenced this repo and wanted to take a look from a different POV (I'm based in the electricity industry and dabble in R)
Here's some quick questions that may indicate how stupid I am with reading PY
1 - I've downloaded the weather_history.json file into R
It appears to comprise time series data in a raw format (e.g. -915152400000)
Maybe R has corrupted this but please would you indicate what these time values are?
2 - The resulting data table comprises 733,680 rows -- is this a year's worth of data?
3 - You create a load_profile
Is this the same profile for each and every day of the period/year?
I know that there are profiles around (I think Elexon has something somewhere) which may be better here
4 - You use Heat loss coefficient in KW/°C (default is 0.2 KW/°C)
Does this mean that for a dwelling to remain at 16C indoors while ambient is -10C the heat loss = 26 * 0.2 ?
e.g. heat loss at constant -10C ambient = 26 * 0.2 * 24 = 124kWh
and, I guess that with a COP of between 3.5 and 2.5 this indicates a ASHP demand of 35-50kWh (probably correct for a very cold day, not intended as a comment on thermal accuracy)
5 - Your thermal calcs reminds me of the degree-days / degree-hours seen elsewhere - happy to share background docs
Thanks for sharing your code via GH and apologies for any silly questions
With best regards
David Hawkins
The text was updated successfully, but these errors were encountered:
Hi Ben
Apologies, I saw your X-post which referenced this repo and wanted to take a look from a different POV (I'm based in the electricity industry and dabble in R)
Here's some quick questions that may indicate how stupid I am with reading PY
1 - I've downloaded the weather_history.json file into R
It appears to comprise time series data in a raw format (e.g. -915152400000)
Maybe R has corrupted this but please would you indicate what these time values are?
2 - The resulting data table comprises 733,680 rows -- is this a year's worth of data?
3 - You create a load_profile
Is this the same profile for each and every day of the period/year?
I know that there are profiles around (I think Elexon has something somewhere) which may be better here
4 - You use Heat loss coefficient in KW/°C (default is 0.2 KW/°C)
Does this mean that for a dwelling to remain at 16C indoors while ambient is -10C the heat loss = 26 * 0.2 ?
e.g. heat loss at constant -10C ambient = 26 * 0.2 * 24 = 124kWh
and, I guess that with a COP of between 3.5 and 2.5 this indicates a ASHP demand of 35-50kWh (probably correct for a very cold day, not intended as a comment on thermal accuracy)
5 - Your thermal calcs reminds me of the degree-days / degree-hours seen elsewhere - happy to share background docs
Thanks for sharing your code via GH and apologies for any silly questions
With best regards
David Hawkins
The text was updated successfully, but these errors were encountered: