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"""The central module containing all code dealing with importing data on |
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potential areas for wind onshore and ground-mounted PV. |
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""" |
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import os |
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from urllib.request import urlretrieve |
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import geopandas as gpd |
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from sqlalchemy.ext.declarative import declarative_base |
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from sqlalchemy import Column, Integer |
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from geoalchemy2 import Geometry |
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import egon.data.config |
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from egon.data import db |
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Base = declarative_base() |
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class EgonRePotentialAreaPvAgriculture(Base): |
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__tablename__ = 'egon_re_potential_area_pv_agriculture' |
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__table_args__ = {'schema': 'supply'} |
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id = Column(Integer, primary_key=True) |
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geom = Column(Geometry('MULTIPOLYGON', 3035)) |
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class EgonRePotentialAreaPvRoadRailway(Base): |
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__tablename__ = 'egon_re_potential_area_pv_road_railway' |
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__table_args__ = {'schema': 'supply'} |
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id = Column(Integer, primary_key=True) |
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geom = Column(Geometry('MULTIPOLYGON', 3035)) |
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class EgonRePotentialAreaWind(Base): |
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__tablename__ = 'egon_re_potential_area_wind' |
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__table_args__ = {'schema': 'supply'} |
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id = Column(Integer, primary_key=True) |
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geom = Column(Geometry('MULTIPOLYGON', 3035)) |
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def download_datasets(): |
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"""Download geopackages from Zenodo.""" |
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data_config = egon.data.config.datasets() |
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pa_config = data_config['re_potential_areas'] |
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def ve(s): |
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raise (ValueError(s)) |
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dataset = egon.data.config.settings()['egon-data']['--dataset-boundary'] |
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url_section = ( |
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'url' |
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if dataset == 'Everything' |
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else 'url_testmode' |
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if dataset == 'Schleswig-Holstein' |
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else ve(f"'{dataset}' is not a valid dataset boundary.") |
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) |
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url_target_file_map = zip( |
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pa_config['original_data']['source'][url_section], |
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[os.path.join(os.path.dirname(__file__), file) |
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for file in pa_config['original_data']['target'][ |
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'path_table_map'].keys()] |
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) |
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for url, file in url_target_file_map: |
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if not os.path.isfile(file): |
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urlretrieve(url, file) |
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def create_tables(): |
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"""Create tables for RE potential areas""" |
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data_config = egon.data.config.datasets() |
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schema = data_config['re_potential_areas']['original_data'][ |
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'target'].get('schema', 'supply') |
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db.execute_sql(f'CREATE SCHEMA IF NOT EXISTS {schema};') |
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engine = db.engine() |
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# drop tables |
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EgonRePotentialAreaPvAgriculture.__table__.drop(engine, checkfirst=True) |
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EgonRePotentialAreaPvRoadRailway.__table__.drop(engine, checkfirst=True) |
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EgonRePotentialAreaWind.__table__.drop(engine, checkfirst=True) |
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# create tables |
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EgonRePotentialAreaPvAgriculture.__table__.create(bind=engine, |
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checkfirst=True) |
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EgonRePotentialAreaPvRoadRailway.__table__.create(bind=engine, |
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checkfirst=True) |
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EgonRePotentialAreaWind.__table__.create(bind=engine, |
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checkfirst=True) |
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def insert_data(): |
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"""Insert data into DB""" |
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data_config = egon.data.config.datasets() |
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pa_config = data_config['re_potential_areas'] |
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file_table_map = { |
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os.path.join(os.path.dirname(__file__), file): table |
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for file, table in pa_config['original_data']['target'][ |
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'path_table_map'].items() |
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} |
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engine_local_db = db.engine() |
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for file, table in file_table_map.items(): |
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data = gpd.read_file(file).to_crs("EPSG:3035") |
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data.rename(columns={'geometry': 'geom'}, inplace=True) |
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data.set_geometry('geom', inplace=True) |
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schema = pa_config['original_data']['target'].get('schema', 'supply') |
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# create database table from geopandas dataframe |
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data.to_postgis( |
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table, |
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engine_local_db, |
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schema=schema, |
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index=False, |
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if_exists="append", |
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dtype={"geom": Geometry()}, |
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) |
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openego /
eGon-data
