Merge pull request #652 from openego/features/#651-change-method-of-h…

…ousehold-type-refinement

Change method of household type refinement

CHANGELOG.rst

@@ -289,7 +289,7 @@ Changed
   `#422 <https://github.com/openego/eGon-data/issues/422>`_
 * Add information on plz, city and federal state to data on mastr without chp
   `#425 <https://github.com/openego/eGon-data/issues/425>`_
-* Assign residentail heat demands to osm buildings
+* Assign residential heat demands to osm buildings
   `#557 <https://github.com/openego/eGon-data/issues/557>`_
 * Add foreign gas buses and adjust cross bording pipelines
   `#545 <https://github.com/openego/eGon-data/issues/545>`_
@@ -308,6 +308,8 @@ Changed
 * H2 demand is met from the H2_grid buses. In Addtion, it can be met from the
   H2_saltcavern buses if a proximity criterion is fulfilled
   `#620 <https://github.com/openego/eGon-data/issues/620>`_
+* Change refinement method for households types
+  `##651 <https://github.com/openego/eGon-data/issues/#651>`_
 * H2 feed in links are changed to non extendable
   `#653 <https://github.com/openego/eGon-data/issues/653>`_
 * Remove the '_fixed' suffix

src/egon/data/datasets/electricity_demand_timeseries/hh_buildings.py

@@ -13,7 +13,6 @@
 * `demand.egon_household_electricity_profile_of_buildings`:
     Mapping of demand timeseries and buildings including cell_id, building
     area and peak load
-* 'demand.egon
 
 Both tables are created within :func:`map_houseprofiles_to_buildings`.
 
@@ -78,6 +77,27 @@
 * As this datasets is a cascade after profile assignement at census cells
 also check drawbacks and limitations in hh_profiles.py.
 
+Example Query
+-----
+
+* Get a list with number of houses, households and household types per census cell
+
+    SELECT t1.cell_id, building_count, hh_count, hh_types
+        FROM(
+            SELECT cell_id, Count(distinct(building_id)) as building_count,
+            count(profile_id) as hh_count
+                FROM demand.egon_household_electricity_profile_of_buildings
+            Group By cell_id
+        ) as t1
+    FULL OUTER JOIN(
+        SELECT cell_id, array_agg(array[cast(hh_5types as char),
+         hh_type]) as hh_types
+        FROM society.egon_destatis_zensus_household_per_ha_refined
+        GROUP BY cell_id
+        ) as t2
+    ON t1.cell_id = t2.cell_id
+
+
 Notes
 -----