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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,157 @@ | ||
| """ | ||
| module to adjust the battery inputs to reflect progress in | ||
| terms of cell energy density. | ||
| """ | ||
|
|
||
| import yaml | ||
|
|
||
| from .logger import create_logger | ||
| from .transformation import ( | ||
| BaseTransformation, | ||
| IAMDataCollection, | ||
| List, | ||
| np, | ||
| ws, | ||
| ) | ||
| from .filesystem_constants import DATA_DIR | ||
|
|
||
| logger = create_logger("battery") | ||
|
|
||
|
|
||
| def load_cell_energy_density(): | ||
| """ | ||
| Load cell energy density data. | ||
| """ | ||
| with open(DATA_DIR / "battery/energy_density.yaml", "r") as file: | ||
| data = yaml.load(file, Loader=yaml.FullLoader) | ||
|
|
||
| return {x["ecoinvent_aliases"]["name"]: x["target"] for x in data.values()} | ||
|
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||
|
|
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| def _update_battery(scenario, version, system_model): | ||
| battery = Battery( | ||
| database=scenario["database"], | ||
| iam_data=scenario["iam data"], | ||
| model=scenario["model"], | ||
| pathway=scenario["pathway"], | ||
| year=scenario["year"], | ||
| version=version, | ||
| system_model=system_model, | ||
| cache=scenario.get("cache"), | ||
| index=scenario.get("index"), | ||
| ) | ||
|
|
||
| battery.adjust_battery_mass() | ||
|
|
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| scenario["database"] = battery.database | ||
| scenario["index"] = battery.index | ||
| scenario["cache"] = battery.cache | ||
|
|
||
| return scenario | ||
|
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||
|
|
||
| class Battery(BaseTransformation): | ||
| """ | ||
| Class that modifies the battery market to reflect progress | ||
| in terms of cell energy density. | ||
| """ | ||
|
|
||
| def __init__( | ||
| self, | ||
| database: List[dict], | ||
| iam_data: IAMDataCollection, | ||
| model: str, | ||
| pathway: str, | ||
| year: int, | ||
| version: str, | ||
| system_model: str, | ||
| cache: dict = None, | ||
| index: dict = None, | ||
| ) -> None: | ||
| super().__init__( | ||
| database, | ||
| iam_data, | ||
| model, | ||
| pathway, | ||
| year, | ||
| version, | ||
| system_model, | ||
| cache, | ||
| index, | ||
| ) | ||
| self.system_model = system_model | ||
|
|
||
| def adjust_battery_mass(self) -> None: | ||
| """ | ||
| Adjust vehicle components (e.g., battery). | ||
| Adjust the battery mass to reflect progress in battery technology. | ||
| Specifically, we adjust the battery mass to reflect progress in | ||
| terms of cell energy density. | ||
| We leave the density unchanged after 2050. | ||
| """ | ||
|
|
||
| energy_density = load_cell_energy_density() | ||
|
|
||
| filters = [ | ||
| ws.contains("name", x) | ||
| for x in energy_density | ||
| ] | ||
|
|
||
| for ds in ws.get_many( | ||
| self.database, | ||
| ws.exclude( | ||
| ws.either( | ||
| *[ | ||
| ws.contains("name", x) | ||
| for x in [ | ||
| "market for battery", | ||
| "battery production", | ||
| "battery cell production", | ||
| "cell module production", | ||
| ] | ||
| ] | ||
| ) | ||
| ), | ||
| ): | ||
|
|
||
| for exc in ws.technosphere( | ||
| ds, ws.either(*filters) | ||
| ): | ||
| name = [x for x in energy_density if x in exc["name"]][0] | ||
|
|
||
| scaling_factor = ( | ||
| energy_density[name][2020] / np.clip( | ||
| np.interp( | ||
| self.year, | ||
| list(energy_density[name].keys()), | ||
| list(energy_density[name].values()), | ||
| ), | ||
| 0.1, | ||
| 0.5 | ||
| ) | ||
| ) | ||
|
|
||
| if "log parameters" not in ds: | ||
| ds["log parameters"] = {} | ||
|
|
||
| ds["log parameters"]["battery input"] = exc["name"] | ||
| ds["log parameters"]["old battery mass"] = exc["amount"] | ||
| exc["amount"] *= scaling_factor | ||
| ds["log parameters"]["new battery mass"] = exc["amount"] | ||
|
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||
| self.write_log(ds, status="modified") | ||
|
|
||
| def write_log(self, dataset, status="created"): | ||
| """ | ||
| Write log file. | ||
| """ | ||
|
|
||
| logger.info( | ||
| f"{status}|{self.model}|{self.scenario}|{self.year}|" | ||
| f"{dataset['name']}|{dataset['location']}|" | ||
| f"{dataset.get('log parameters', {}).get('battery input', '')}|" | ||
| f"{dataset.get('log parameters', {}).get('old battery mass', '')}|" | ||
| f"{dataset.get('log parameters', {}).get('new battery mass', '')}" | ||
| ) |
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