I have at least one instance (FRS ID 110021350946), where there are clearly two eGRID IDs (55077 and 56944) associated with the same FRS ID, which is understandable, but all of the NEI emissions are tagged as 56944 (solar PV plant) while eGRID emissions are tagged as 55077 (NGCC plant). When this data gets pulled into the eLCI we end up with a large amount of NOx emissions (presumably from the NGCC plant) getting divided by relatively smaller electricity generation) and a really large NOx emission rate. I imagine the correct answer in this case would be to assign all reported emissions to the NGCC plant. Alternatively, both eGRID IDs could be passed along so that when generation data is matched later, the generation from both eGRID IDs can be pulled and summed.
I have at least one instance (FRS ID 110021350946), where there are clearly two eGRID IDs (55077 and 56944) associated with the same FRS ID, which is understandable, but all of the NEI emissions are tagged as 56944 (solar PV plant) while eGRID emissions are tagged as 55077 (NGCC plant). When this data gets pulled into the eLCI we end up with a large amount of NOx emissions (presumably from the NGCC plant) getting divided by relatively smaller electricity generation) and a really large NOx emission rate. I imagine the correct answer in this case would be to assign all reported emissions to the NGCC plant. Alternatively, both eGRID IDs could be passed along so that when generation data is matched later, the generation from both eGRID IDs can be pulled and summed.