Fix issue with renaming Xarray attribute

Author: jacobbieker

ocf_datapipes/load/gsp.py

@@ -78,15 +78,14 @@ def __iter__(self) -> xr.DataArray:
 
         # Ensure the centroids have the same GSP ID index as the GSP PV power:
         gsp_id_to_shape = gsp_id_to_shape.loc[gsp_pv_power_mw_ds.gsp_id]
-
         data_array = _put_gsp_data_into_an_xr_dataarray(
             gsp_pv_power_mw=gsp_pv_power_mw_ds.generation_mw.data.astype(np.float32),
             time_utc=gsp_pv_power_mw_ds.datetime_gmt.data,
             gsp_id=gsp_pv_power_mw_ds.gsp_id.data,
             # TODO: Try using `gsp_id_to_shape.geometry.envelope.centroid`. See issue #76.
             x_osgb=gsp_id_to_shape.geometry.centroid.x.astype(np.float32),
             y_osgb=gsp_id_to_shape.geometry.centroid.y.astype(np.float32),
-            capacity_megawatt_power=gsp_pv_power_mw_ds.installedcapacity_megawatt_power.data.astype(np.float32),
+            capacity_megawatt_power=gsp_pv_power_mw_ds.installedcapacity_mwp.data.astype(np.float32),
         )
 
         del gsp_id_to_shape, gsp_pv_power_mw_ds

tests/data/gsp/test.zarr/.zmetadata

@@ -84,7 +84,7 @@
                 "gsp_id"
             ]
         },
-        "installedcapacity_megawatt_power/.zarray": {
+        "installedcapacity_mwp/.zarray": {
             "chunks": [
                 49,
                 22
@@ -106,7 +106,7 @@
             ],
             "zarr_format": 2
         },
-        "installedcapacity_megawatt_power/.zattrs": {
+        "installedcapacity_mwp/.zattrs": {
             "_ARRAY_DIMENSIONS": [
                 "datetime_gmt",
                 "gsp_id"