Filtering NEI data from industrial facilities #191
m-jamieson
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StEWI can pull NEI emissions by SCC using |
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You mean you don't do anything to filter out data by SCCs? As long as I can get the code, I'm happy to implement the filtering on the electricitylci side. This seems like a reasonable solution. |
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I wasn't sure whether to put this in StEWI or here. I figured since the problem is manifesting itself here, I would start here.
This is applicable to the replace_egrid=True path, but I suspect is applicable to the egrid path as well, depending on how that data was ultimately filtered to arrive at the official egrid derived plant list for 2016.
There are some generators which are located within industrial facilities. An example with a really large impact is Plant ID 60822, "Intel - Ocotillo Campus Solar," a solar PV plant. Because it is a generator in EIA923 that is reporting as NAICS-22 Non-Cogen, we're keeping it in the list of plants to pull inventory for. StEWI correctly finds NEI data for this plant through the facility crosswalk, and assigns those NEI emissions to our solar plant. This is an electronics manufacturing facility and happens to have a lot of SF6 emissions, which get assigned to our solar generation, resulting in ~400 kg CO2e/MWh solar (versus the usual <100 kg CO2e/MWh). The NAICS code assigned to those NEI emissions is electronics manufacturing (334413) rather than electricity generation (221114), so I think the solution would be to filter NEI (and likely other inventories) based on the NAICS code for the process/facility. This is just one example. There are a number of renewable generators that are in the same situation, and I suspect a number of oil-fired and possibly natural-gas fired generators are affected as well.
I guess there are a couple points worth discussion:
In the meantime, I'll probably open up and issue and start a branch to filter the data by facility-level NAICS as done in flowsa.
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