Installed Capacity per Production Type returns only the first year that i have queried.

[EndesaMan]

Hello! I seem to have a problem with the "query_installed_generation_capacity" command. If i query for a timeperiod that spans through several years i usually get a dataframe with the installed capacities for the years queried. However, right now i only get the first year i queried, even though the years have different values between them. For example:

Input:

from entsoe import EntsoePandasClient
import pandas as pd
import os
client = EntsoePandasClient(api_key = os.getenv("ENTSOE"))
start = pd.TimeStamp(year=2015, month=1, day=1)
end = pd.TimeStamp(year=2025, month=1, day=1)
country_code = "BE"
df_capacity = client.query_installed_generation_capacity(country_code, start = start, end = end)

Output:
df_capacity_2015_2025.csv

,Biomass,Fossil Gas,Fossil Oil,Hydro Pumped Storage,Hydro Run-of-river and poundage,Nuclear,Other,Solar,Waste,Wind Offshore,Wind Onshore
2015-01-01 00:00:00+01:00,573.0,6753.0,229.0,1308.0,162.0,5943.0,,2818.0,358.0,712.0,1249.0

If i query starting from another year i get the the data from that starting year.

Input:

from entsoe import EntsoePandasClient
import pandas as pd
import os
client = EntsoePandasClient(api_key = os.getenv("ENTSOE"))
start = pd.TimeStamp(year=2020, month=1, day=1)
end = pd.TimeStamp(year=2025, month=1, day=1)
country_code = "BE"
df_capacity = client.query_installed_generation_capacity(country_code, start = start, end = end)

Output:
df_capacity_2020_2025.csv

,Biomass,Fossil Gas,Fossil Oil,Hydro Pumped Storage,Hydro Run-of-river and poundage,Nuclear,Other,Solar,Waste,Wind Offshore,Wind Onshore
2020-01-01 00:00:00+01:00,647.0,6799.0,246.0,1308.0,175.0,5943.0,19.0,3887.0,362.0,2254.0,2416.0

Does this happen to any one of you too?

[fleimgruber]

I would refrain from queries that span more than one year, and even then I would frequently go to half-a-year queries if needed. The queries you tried with 5-10 years are most likely too much for the API in most cases.

Edit: See also

entsoe-py/entsoe/decorators.py

Line 96 in c03c604

def year_limited(func):

which is there for queries that are known to be limited to one year only.