Update add power in material build

Author: yiyi1991

message_ix_models/model/material/data_power_sector.py

@@ -253,6 +253,7 @@ def read_material_intensities(
                                     "node_origin": n,
                                     "commodity": c,
                                     "level": "product",
+                                    "time": "year",
                                     "time_origin": "year",
                                     "value": val_cap_new,
                                     "unit": "t/kW",
@@ -282,6 +283,7 @@ def read_material_intensities(
                                     "node_origin": n,
                                     "commodity": c,
                                     "level": "product",
+                                    "time": "year",
                                     "time_origin": "year",
                                     "value": val_cap_input_ret,
                                     "unit": "t/kW",
@@ -311,6 +313,7 @@ def read_material_intensities(
                                     "node_dest": n,
                                     "commodity": c,
                                     "level": "end_of_life",
+                                    "time": "year",
                                     "time_dest": "year",
                                     "value": val_cap_output_ret,
                                     "unit": "t/kW",